| Weather In-Depth Daily Weather News - Thursday July 30th 2009 | |||
Sunshine will dominate on Saturday and mixing with clouds on Sunday giving a very nice long weekend for many. Looking at next week.... temperatures should be taking a downturn with values getting back to the low 20's for Southern Ontario by mid week and beyond. Current computer model trends are seeing a cooling lasting into mid August at this point as the Jet Stream continues to deliver cooler air from the north to the southern regions of Ontario. All the heat is bottled up on the west coast and even into the Yukon where temperatures as high as 33 degrees were reported yesterday in several centres including the capitol city of Whitehorse. Speaking of wet summers, our Capitol of Canada has recieved the the highest rainfall on record since record keeping began for the month of July. Unusually frequent and heavy rainfalls have soaked
the national
Vancouver and Victoria are experiencing low 30's which rarely occurs for those cities. Perhaps once every 4 or 5 years. This is caused by a strong ridge of high pressure that has caused to the Jet stream to rise VERY far north as you can see by the graphic on the left.
Yesterday's Reported High and Low Temperatures across Canada...
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| Weather In-Depth Daily Weather News - Wednesday July 29th 2009 (updated by noon each day) |
A
very moist low pressure system will bring showers and
some scattered thunderstorms to the Golden Horseshoe
regions today. Most of the shower activity appears that
it will be confined to the Niagara regions extending
westwards to almost the Hamilton area and then
northeastwards to the northern shores of Lake Ontario.
There will be some spotty showers elsewhere, but the
main area of precipitation will be in the areas I
mentioned above.Environment Canada has issued a Severe Thunderstorm Watch for some areas of Southern Ontario and this is because of the slow moving nature of the storms, so heavy rain is the main threat. The low pressure system responsible for the clouds and showers today will move out of the regions by early this evening with clearing skies shortly thereafter.
We will be caught between 2 systems on Thursday so some sunshine will be seen before clouds increase during the day and the next frontal system approaches bringing more showers and scattered storms for Friday. Temperatures on Thursday will make it to more seasonal values of 25-27 degrees across most of Southern Ontario and up into cottage country. Looking ahead to the weekend, Saturday appears to be the day to get out and do whatever you like to do. Sunshine mixing with clouds and seasonal temps are expected. Increasing instability will cause some showers or thunderstorms to develop during the days on Sunday and Monday, however temperatures will still be in the seasonal range. A cooler brand of air will make it's way into Southern Ontario for Tuesday and much of next week.
Vancouver and Victoria are experiencing low 30's which rarely occurs for those cities. Perhaps once every 4 or 5 years. This is caused by a strong ridge of high pressure that has caused to the Jet stream to rise VERY far north as you can see by the graphic on the left.
Yesterday's Reported High and Low Temperatures across Canada...
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| Tuesday July 28 2009 - Weather News |
| Weather News is updated by noon each day and as needed throughout the day. |
Unsettled
conditions will be the rule over Southern Ontario today,
however most of the precipitation will be confined to
north and east of the GTA. Variable clouds with
scattered showers and isolated thunderstorms are likely
in these regions. For most of the rest of Southern
Ontario, just variable skies can be expected with the
ODD sprinkle from time to time.
A surge of moisture will take over the regions Tuesday night and into Wednesday with numerous showers and thunderstorms likely. Very humid air will likely spark a few severe storms from time to time. Keep you eyes on the Warnings graphic on the left side for watches or warnings that may be issued in your area. Here is a look at yesterday's reported High and Low temperatures across Canada.
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| The Golden Horseshoe Report - Weather News |
| The golden horesehoe report is usually updated by noon |
| Thursday July 23rd Today's Headlines |
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| Rainfall Totals as of 11am; Special Wx Statement dropped |
| Steady Rain across the Golden Horseshoe today. |
| Unsettled conditions continue into the weekend. |
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Some Rainfall Totals as of 11am from Environment CanadaThe area of heavy rain associated with a low pressure system has now moved out of southwestern Ontario and is affecting regions from western Lake Ontario northward to Georgian Bay and eastward to Trenton and Bancroft. This heavy rain will continue to March steadily northward affecting regions from east of Georgian Bay to The Ottawa Valley this afternoon. In general the rainfall amounts with this system have been less than expected and this is in part Due to the absence of thunderstorms which were forecast to increase the amounts from those observed. Reports of rainfall within this heavy band have ranged from 15 to 30 mm with the highest amounts occurring in the Niagara Peninsula. Given the lesser amounts with this system it is not anticipated a rainfall warning will be required and hence this special weather statement has been ended. A summary of rainfall amounts up to 11 AM this morning is given below and a AWCN11 CWTO storm summary Bulletin may be issued this afternoon to update rainfall totals as they become available. Location rainfall amount (total in mm) Windsor 3 London 8 Delhi 16 Kitchener 12 Welland 23 Vineland 21 Port Colborne 22 Port Weller 31 Hamilton 26 Toronto Pearson 19 Toronto downtown 14 Buttonville (Markham) 22 Barrie 14 Trenton 15 Steady Rain Across the Golden Horseshoe Today
Temperatrures will be on the cool side with moderate easterly winds developing today up to 30km/h. I wouldn't expect that the high will get much above the 20 degree mark, some 7 degrees below the seasonal values for this time of year. Conditions will remain unsettled for the next few days as this humid airmass hovers over the region. Scattered showers are likely Friday and again Saturday with coolish low 20 temperatures. Some improvement in the temp department can be expected come Sunday as we climb into the mid 20's, but don't expect to see too much sunshine. Cloudy skies will rule Sunday with the chance of some showers still lingering around. As in past posts... there doesn't appear to be any heatwaves in the foreseeable future, which takes us well into August. If you are looking for heat, you will have to go west to British Columbia. The southern interior is experiencing temperatures into the mid to high 30's and has been for several days. Here is a look at yesterday's reported High and Low temperatures across Canada.
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| The Golden Horseshoe Report - Weather News |
| Wednesday July 22nd Headlines |
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| Special Weather Statement Issued Re: Heavy Rainfall |
| Unsettled conditions until early next week |
| Temperatures remain below seasonal values |
| Hot Temps in BC continue to hamper forest fires in Kelowna area |
Special Weather Statement for Heavy Rainfall issued
by Environment CanadaHeavy rain overnight and Thursday producing rainfall amounts of 25 To 50 millimetres.. A low pressure system currently over southern Illinois is tracking slowly northeastwards towards southern Ontario. A large area of heavy rain associated with this low is forecast to reach areas near Lake Erie after midnight and then spread northeastward reaching the Golden Horseshoe Thursday morning and regions near Georgian Bay Thursday afternoon. By the time the heavy rain ends most localities will have received amounts of 20 to 30 millimetres. However embedded within this heavy rain area there may be a fairly narrow swath of Rainfall amounts in the 30 to 50 millimetre range..Although the exact location of this heavier swath remains uncertain at this time. Environment Canada continues to monitor the situation and rainfall warnings may have to be issued later today or tonight as the exact location of the potential heavy rain swath becomes more certain. The Environment Canada rainfall warning criteria requires 50 millimetres or more of rain to fall within a 12 hour period. Rain moving into Southern Ontario this evening; Unsettled conditions into next week
An area of rain associated with a slow moving Low Pressure system will move into the regions overnight tonight and into Thursday. Currently we can expect anywhere from 15-25mm of rain from this event, so a good soaking nonetheless. The unsettled conditions don't end there. A trough in the jet stream along with colder upper level temperatures will allow for clouds and scattered showers to develop each day throughout the forecast period. Basically you will want to bring an umbrella with you each day for the next number of days just to be on the safe side. Looking into the longer range... there are still no heat waves in sight. In fact, another very cool airmass is expected to dive into Southern Ontario next week bringing temperatures back to the high teens to low 20's. Forest Fires and Hot Temperatures in Southern BC
Weather conditions in the area have been very dry with very little rainfall and scorching temperatures well into the upper 30's for main days. The hottest temperature was 38.2 degrees in Southern BC yesterday and is so far the highest this year for all of Canada. Yesterday's Temperatures Extremes Across Canada
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A
change in the weather map will also result in a change in
the air mass over much of the East this week. The main
reason for this change is the presence of a high pressure in
the western Atlantic, the old "Bermuda High" that will set
up this week. This high pressure system, which is so common
in a normal summer, has not set up so far this year. Because
of the lack of this high pressure system, humidity levels
have been low and comfortable for the most part across the
East this summer.
However, there
are signs that this week will be different from the start of
summer. Clockwise wind flow around the high pressure will
cause southwesterly winds up across the East Coast, and this
will cause moisture to stream inland from the Atlantic Ocean
and Gulf of Mexico. So, those who miss the summer muggies
may have a reason to smile this week while those who enjoy
the cool, almost fall-like pattern experienced so far will
maybe have a frown on their face
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The coming week will becoming increasingly humid and unsettled as a warmer flow from the south brings a more humid airmass to the regions. Instability in the upper atmosphere however will aid in the development of showers and isolated thunderstorms each day this week. Showers will develop during the afternoon hours due to daytime heating as the warmer air rises into cooler air aloft and then condenses. Cooler and unsettled conditions will return for Friday and into the weekend as the jetstream once again dips south of the region allowing cooler air from the north to move southwards.
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| Weather News for Sunday July 19th 2009 -updated usually by noon each day. |
It's
sounding like a broken record, but cool air remains over
Southern Ontario as the jet stream continues to dip to the
south of the region bringing an unusual July chill to the
regions. Temperatures are normally into the upper 20's, but
it's been hard pressed to get higher than the low 20's, and
in some cases temperatures have remained below the 20 degree
mark.
An upper level low has helped to increase clouds during the daytime hours and spark a few scattered showers and the odd thunderstorm during the afternoon or early evening. This feature will continue to do so today, however to a lesser extent than previous days.
The coming week is looking very unsettled as scattered showers and the chance of a thunderstorm develop each day. It's not a washout situation, however it certainly puts a damper on any plans.
Colder than normal and an early start to the winter
for the Great Lakes area is expected.
Forecasting
6 months ahead is not easy and is nowhere close to being
exact, however the atmosphere gives clues as to what is
likely to occur over a period of time and that is what this
forecast is. AccuWeather.com released it's winter outlook
today and I would like to share that with you.
The weather pattern that we have experienced in Southern
Ontario so far this summer is not one that is normal for the
region. It doesn't take a genius to figure that one out.
Temperatures have been way below normal and this is thanks
to the jet stream.
The jetstream is a fast moving river of air in the upper
atmosphere at about 25000 to 30000 feet up and is the
dividing line between warmer air to the south, and cooler
air to the north. When the jetstream shifts to the south of
the area, cooler air is allowed to come southwards and
conversely, when the jetstream shifts to the north of the
area, warmer air moves north. The jet stream is always
moving north and south, however this summer it has
persistently remained far south of the region allowing a
constant flow of cooler air to dominate.
The
pattern is not expected to change as we get into the fall
and winter months. This would mean that colder than normal
conditions will be felt in Southern Ontario through the fall
and most noticeably in the winter months.
Last year, the active storm track quite often found it's way
through the great lakes region and this resulted in quite a
bit of snow for December and January. The storm track is
expected to be further east this year, therefore the bulk of
storms will move to the east coast. This will keep Southern
Ontario in the cold sector, and miss most of the heavy
snows. However, for areas that are proned to Lake Effect
precipitation around the shores of Lake Huron and Georgian
Bay, an increase in snowsquall activity will be likely.
It's too early to pinpoint temperature departures, however
the current pattern in the atmosphere and it's trends have
given the clues to the upcoming winter. Several computer
models are having similar outputs in there long range as
well.
Now it's still only July, so enough about snow and cold.
Let's just enjoy what little summer we have.
| Weather News for Thursday July 16th 2009 -updated usually by noon each day. |
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WEATHER HIGHLIGHTS
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Colder than normal and an early start to the winter for
the Great Lakes area is expected.
Forecasting
6 months ahead is not easy and is nowhere close to being
exact, however the atmosphere gives clues as to what is
likely to occur over a period of time and that is what this
forecast is. AccuWeather.com released it's winter outlook
today and I would like to share that with you.
The weather pattern that we have experienced in Southern
Ontario so far this summer is not one that is normal for the
region. It doesn't take a genius to figure that one out.
Temperatures have been way below normal and this is thanks
to the jet stream.
The jetstream is a fast moving river of air in the upper
atmosphere at about 25000 to 30000 feet up and is the
dividing line between warmer air to the south, and cooler
air to the north. When the jetstream shifts to the south of
the area, cooler air is allowed to come southwards and
conversely, when the jetstream shifts to the north of the
area, warmer air moves north. The jet stream is always
moving north and south, however this summer it has
persistently remained far south of the region allowing a
constant flow of cooler air to dominate.
The
pattern is not expected to change as we get into the fall
and winter months. This would mean that colder than normal
conditions will be felt in Southern Ontario through the fall
and most noticeably in the winter months.
Last year, the active storm track quite often found it's way
through the great lakes region and this resulted in quite a
bit of snow for December and January. The storm track is
expected to be further east this year, therefore the bulk of
storms will move to the east coast. This will keep Southern
Ontario in the cold sector, and miss most of the heavy
snows. However, for areas that are proned to Lake Effect
precipitation around the shores of Lake Huron and Georgian
Bay, an increase in snowsquall activity will be likely.
It's too early to pinpoint temperature departures, however
the current pattern in the atmosphere and it's trends have
given the clues to the upcoming winter. Several computer
models are having similar outputs in there long range as
well.
Now it's still only July, so enough about snow and cold.
Let's just enjoy what little summer we have.
| Weather News for Wednesday July 15th 2009 -updated usually by noon each day. |
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Colder than normal and an early start to the winter for
the Great Lakes area is expected.
Forecasting
6 months ahead is not easy and is nowhere close to being
exact, however the atmosphere gives clues as to what is
likely to occur over a period of time and that is what this
forecast is. AccuWeather.com released it's winter outlook
today and I would like to share that with you.
The weather pattern that we have experienced in Southern
Ontario so far this summer is not one that is normal for the
region. It doesn't take a genius to figure that one out.
Temperatures have been way below normal and this is thanks
to the jet stream.
The jetstream is a fast moving river of air in the upper
atmosphere at about 25000 to 30000 feet up and is the
dividing line between warmer air to the south, and cooler
air to the north. When the jetstream shifts to the south of
the area, cooler air is allowed to come southwards and
conversely, when the jetstream shifts to the north of the
area, warmer air moves north. The jet stream is always
moving north and south, however this summer it has
persistently remained far south of the region allowing a
constant flow of cooler air to dominate.
The
pattern is not expected to change as we get into the fall
and winter months. This would mean that colder than normal
conditions will be felt in Southern Ontario through the fall
and most noticeably in the winter months.
Last year, the active storm track quite often found it's way
through the great lakes region and this resulted in quite a
bit of snow for December and January. The storm track is
expected to be further east this year, therefore the bulk of
storms will move to the east coast. This will keep Southern
Ontario in the cold sector, and miss most of the heavy
snows. However, for areas that are proned to Lake Effect
precipitation around the shores of Lake Huron and Georgian
Bay, an increase in snowsquall activity will be likely.
It's too early to pinpoint temperature departures, however
the current pattern in the atmosphere and it's trends have
given the clues to the upcoming winter. Several computer
models are having similar outputs in there long range as
well.
Now it's still only July, so enough about snow and cold.
Let's just enjoy what little summer we have.
| Weather News for Tuesday July 14th 2009 -updated usually by noon each day. |
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An
area of high pressure will dominate the weather picture
today with plenty of sunshine and slightly below seasonal
temperatures. But really... who's complaining with 25
degrees, light winds and clear blue skies. Sure, some people
would prefer 32 degrees, but personally, today's weather is
perfect for me. Don't forget to wear sunscreen if you are
spending some time outside. The UV index is 8 or Very High
today. It's a common mistake amongst many to think that
sunburn corresponds with the temperature, when in fact, it
has nothing to do with it. Sunburn has to do with the amount
of exposure to UV rays from the sun and can even happen in
the winter months, although because the sun is not very
strong at that time of year, sunburn takes much longer.
An approaching
area of showers and thunderstorms will move into the regions
for Wednesday
afternoon. Now... some of these storms may have the
potential at becoming severe along and just ahead of a cold
front moving in from the west. Keep your eyes on the weather
warnings graphic just below the forecast boxes at the top.
It is updated in real time and will turn yellow or red for
your region if a watch or warning is issued.
Cooler weather is expected to continue for the latter half of the work week with sunshine mixing with clouds and temperatures into the low 20's.
A sneak peak at the coming winter of 2009/2010 will be posted tomorrow. AccuWeather.com, the worlds weather authority, will be releasing there winter forecast tomorrow. Now obviously this is 6 months away, however there are certain clues and trends in the atmosphere that aid in the prediction of weather several months into the future.
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Weather News for Monday July 13th 2009 |
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Sunshine
will dominate the weather picture today across Southern
Ontario, however temperatures will again be on the cool
side. This is sounding like a broken record as this has been
the case almost everyday this summer as cool air has ruled.
Temperatures will range from 20-23 degrees across the
regions. It will be a bit on the windier side today as the
pressure gradient tightens between a High pressure system to
the west and a Low pressure system near the east coast.
Winds will likely be 20-40km/h with occasional gusts to 50.
Sunshine is expected to continue on Tuesday with slightly warmer temperatures. Today and Tuesday will likely be the nicest days this week as a disturbance will move into the areas on Wednesday bringing unsettled conditions with showers and scattered thunderstorms.
Overall, temperatures over the next 15 days are not expected to peak much above the 25 degree mark.
Speaking of cool temperatures, just look at yesterday's temps at the top of news section. The morning low temperatures for Sunday morning were into the single digits. There will likely some lower temperatures than the ones I have reported there for places in low lying areas. Very untypical for July needless to say.
Warming up for Friday; Storms approach Saturday; cooldown
again for early next week; International News- Water shortage
in Mumbai, India
There will be some fog patches around the west end of Lake Ontario this morning and into the early afternoon. This is caused by the easterly winds blowing across the lake and cooler air being blown inland and condensing over the warmer ground. You can actually see this on the visible sat image on the right and below. NOTE: fog is diminishing so this won't be visible in the afternoon hours.
An approaching cold front will start to increase the clouds during the evening hours on Friday from west to east and some showers or thunderstorms will likely make an appearance overnight and into Saturday. Some of the thunderstorms have the potential to become severe as a strong jet stream moving overhead will likely aid in the severity of the storms. A cooler blast of air will come in behind the front as we once again go to below seasonal values for the start of next week.
INTERNATIONAL WEATHER NEWS..
The civic authorities in Mumbai introduced the reduction on Tuesday as levels ran "precariously low" at the six lakes that supply the city's 18 million population with 3.3 billion litres (872 million US gallons) of water a day. Like many Indian cities, Mumbai depends on the annual monsoon to replenish water stocks. The rains had been due to arrive on June 8 but only hit the city at the end of last month. Since then, they have been intermittent. Heavy rainfall overnight Tuesday-Wednesday left many lower-lying areas under water and forced pedestrians to wade shin-deep through muddy water. Colaba, in south Mumbai, received 73.7 millimetres (2.9 inches) of rain in the 24 hours to 8:30 am (0300 GMT), according to the Indian Meteorological Department. Brihanmumbai Municipal Corporation (BMC) official Anil Diggikar was quoted as saying by the Press Trust of India news agency: "We are facing a shortage of 250 million litres of water per day." He said the one lake with higher levels can only supply the eastern suburbs, hitting the more prosperous southern and western parts of the metropolis. Deputy municipal commissioner Pramod Charankar told the Times of India that there was currently enough water only for the next 20 days in those areas unless the monsoon picked up. Just a reminder if you are one of those beach bums, like myself, don't be fooled by a partly cloudy day or sitting in the shade. Sunburn can still occur as UV radiation reflects from many sources at the beach.
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Cool weather remaining over Southern Ontario.
There is no real change expected in this pattern over the next 2 weeks, infact longer range climate models are not seeing a change for most of the summer. There will be some days of warmer weather with temperatures into the high 20's, but all in all, the average will be much below normal.
. Just a reminder if you are one of those beach bums, like myself, don't be fooled by a partly cloudy day or sitting in the shade. Sunburn can still occur as UV radiation reflects from many sources at the beach.
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Cool remains over the area; Warmer by mid week
Cool air remains over the region with daytime temperatures still 3-5 degrees below the normal values for this time of year. Generally Southern Ontario see's temperatures into the upper 20's during July, however we have been hard pressed to get above 25 for some time now. There will be a warming trend by later in the week, however that will only be kyboshed by the weekend as cooler air is forecast to return at that point and into next week. INTERNATIONAL WEATHER NEWS..
About 550,000 people have fled their homes in southern China after heavy rains toppled houses, flooded roads and damaged a dam, news reports said. Flood waters blocked the entrances to the Hemu Town Middle School in the Guangxi region and rendered nearby roads impassable, according to an official of Rongshui county where the school is. She would only give her surname, Lu. CCTV said Sunday that floodwaters along a major commercial thoroughfare elsewhere in Rongshui were more than eight feet (2.5 meters) deep. The report said it was the highest water level the county has seen in a decade. Flood control officials used boats to deliver food, mineral water and other supplies to the school on Saturday, including pumps to lower the water level, Lu said. She said she did not know how long the children, aged from 13 to 15 years, had been stuck in the building. By Friday, 80 percent of the county was inundated, causing the Rongjiang river to overflow its banks and forcing the relocation of more than 70,000 people, Lu said. Heavy rains have battered the region since Wednesday, forcing about 290,000 people in Guangxi to relocate, the official Xinhua News Agency said. The rains began to subside in parts of Guangxi on Sunday, but river levels remained high, the report said. CCTV showed flooded Rongshui streets, where the signboards of restaurants and shops were all that could be seen above the water. Mattresses, household items and other debris drifted in the water, passing residents on wooden rowboats as people peered out from second-floor balconies and windows. The county government estimated the damage at 210 million yuan ($31 million), Xinhua said. The rain also destroyed a 44-foot (13-meter) section of a dike near the base of the Kama Reservoir in Guangxi, Xinhua said. About 15,000 people who lived downstream from the dam were moved to safety and were now living in more than 1,000 tents, the national flood control office said in a statement Saturday. In Hunan province, floods have killed eight people and forced 140,000 to relocate. Five people have died in southeastern Fujian province, two others were missing, and 22,000 people have been evacuated, Xinhua said Saturday. Another two people died and three were missing in Jiangxi province. Another 100,000 people were forced from their homes. Just a reminder if you are one of those beach bums, like myself, don't be fooled by a partly cloudy day or sitting in the shade. Sunburn can still occur as UV radiation reflects from many sources at the beach.
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Upper Level Low begins to move to the east... Sunshine
returns for the weekend, but below seasonal.
Temperatures across the Golden Horseshoe and for all of Southern Ontario for that matter will continue to be 5-8 degrees below the seasonal norms. Normally at this time of year, temperatures should be around 27-28 degrees across the board, but only low 20's will be common place today.
Sunshine will continue on Sunday, however some scattered showers will begin to enter into the picture into the later afternoon hours. Cool air continues on Sunday, and especially on Monday with temperatures only making it to the high teens. Long range model trends are continuing to see below seasonal values for most of July with higher than normal precipitation expected across the Great Lakes area.
Im sure you have heard of the term, "The Dog Days of Summer", but have you ever wondered exactly what that meant and the origins of the term. The graphic below explains.
Just a reminder if you are one of those beach bums, like myself, don't be fooled by a partly cloudy day or sitting in the shade. Sunburn can still occur as UV radiation reflects from many sources at the beach.
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Unsettled weather continues today, but sunshine returns for
the weekend and beyond. Remaining below seasonal.
Temperatures will continue to be on the cool side today with high's only reaching the low 20's. Some 5-8 degrees below normal values for this time of year.
Sunshine is expected to continue into much of next week with temperatures in the low to mid 20's. Looking at longer range trends... below seasonal values can be expected into the middle of July with near normal temperatures expected for the latter half of the month. There is also expected to be a higher than normal frequency of thunderstorms across the region during July.according to the latest computer analysis |
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