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UEMA

@UEMA100

Uniontown Emergency Management Agency. In an emergency call 911. Dedicated to sharing threat,prepredness & general safety information to greater Uniontown Pa.

 Pennsylvania, USA
Joined July 2017
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Photo by UEMA (@UEMA100)Photo by UEMA (@UEMA100)Photo by UEMA (@UEMA100)Photo by UEMA (@UEMA100)Photo by UEMA (@UEMA100)Photo by UEMA (@UEMA100)Photo by UEMA (@UEMA100)Photo by UEMA (@UEMA100)Photo by UEMA (@UEMA100)Photo by UEMA (@UEMA100)
The system moving through the area seems to be on a faster track. Therefore, probabilities for snowfall have come down a bit. Here is the probability for exceeding 1 inch of snow. At this time, no advisory is expected.
The graphic shows the probability of exceeding 1 inch.

ALT The graphic shows the probability of exceeding 1 inch.

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Image from UEMA (@UEMA100)
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Today's theme is snow squall science. Snow flurries and snow showers are common in Pennsylvania, but snow squalls are an especially dangerous weather hazard. Check out this graphic to see what makes snow squalls unique - they're not just a typical snow shower! #SnowSquallSafetyPA
The science behind snow squalls: Thin convective like bands of heavy snow due to high instability and strong synoptic forcing (such as fronts). Can have very high snowfall rates, approximately 2 inches in 30 minutes is not uncommon. Snow squalls are like a miniature blizzard. In a matter of minutes, partly cloudy skies can transition to heavy snow with wind gusts of greater than 30 miles per hour and visibility less than a quarter of a mile. Strong surface/wind moisture convergence.

ALT The science behind snow squalls: Thin convective like bands of heavy snow due to high instability and strong synoptic forcing (such as fronts). Can have very high snowfall rates, approximately 2 inches in 30 minutes is not uncommon. Snow squalls are like a miniature blizzard. In a matter of minutes, partly cloudy skies can transition to heavy snow with wind gusts of greater than 30 miles per hour and visibility less than a quarter of a mile. Strong surface/wind moisture convergence.

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A passing disturbance to the north will increase the winds across the area for today. The highest winds will be in the higher terrain. Here are the probabilities of exceeding 30 mph today.
Image from NWS Pittsburgh (@NWSPittsburgh)
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A cold front is expected to move into the Ohio Valley by Thursday. Some rain is expected ahead of the cold front. Here are the probabilities of exceeding 0.50".
This graphic shows the probability of exceeding 0.50" of precipitation.

ALT This graphic shows the probability of exceeding 0.50" of precipitation.

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Snow Squall Awareness Week kicks off today and continues through Friday! Follow #SnowSquallSafetyPA for preparedness information from @PennDOTNews, @PEMAHQ, @PAStatePolice and the @PA_Turnpike all week long!
Snow Squall Awareness Week: Monday: Snow Squall Intro Tuesday: Snow Squall Science Wednesday: Snow Squall Warnings Thursday: Snow Squall Safety with an Online Advanced Winter Weather Spotter Talk at 6pm Friday: Recap Follow along this week with #SnowSquallSafetyPA

ALT Snow Squall Awareness Week: Monday: Snow Squall Intro Tuesday: Snow Squall Science Wednesday: Snow Squall Warnings Thursday: Snow Squall Safety with an Online Advanced Winter Weather Spotter Talk at 6pm Friday: Recap Follow along this week with #SnowSquallSafetyPA

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High pressure is expected to nudge into the area. This will result in some clearing across the area. Temperatures will then rise into the mid to upper 50s today.
The graphic shows today's highs expected.

ALT The graphic shows today's highs expected.

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A low pressure center will drop south into the area today. Showers are expected to develop. Here are the probabilities of exceeding 0.10". Amounts to the northwest will be slightly more.
The graphic shows the potential of exceeding 0.10".

ALT The graphic shows the potential of exceeding 0.10".

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CRAIG ST BETWEEN MORGANTOWN ST & DERRICK AVE IN THE CITY IS CLOSED.
Image from UEMA (@UEMA100)
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Here is a radar simulation for today, showing scattered showers with a crossing cold front.
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Rain will end this morning following the passage of a cold front. Partial clearing is then expected through the rest of the day. Rain chances return at times Friday and Saturday with a crossing disturbance.
Graphic showing the forecast through the weekend

ALT Graphic showing the forecast through the weekend

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E CRAIG ST BETWEEN DERRICK & LAWN AVES IN THE CITY IS CLOSED.
Image from UEMA (@UEMA100)
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Rain chances will increase later today, and continue tonight, with the approach and passage of a cold front. Until the rain arrives, warm temperatures are expected again today.
Map showing today's high temperatures

ALT Map showing today's high temperatures

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CHAFFEE ST BETWEEN COOLSPRING ST & ROSE BLVD IN THE CITY IS CLOSED.
Image from UEMA (@UEMA100)
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Patchy light rain north of Pittsburgh will end early this morning. Otherwise, dry and warm conditions are expected until rain returns late Wednesday.
Graphic showing the forecast for the next three days

ALT Graphic showing the forecast for the next three days

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CHAFFEE ST BETWEEN ROSE BLVD & LESLIE ST IN THE CITY IS CLOSED.
Image from UEMA (@UEMA100)
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A few sprinkles/light rain possible this morning, and again tonight, for areas across eastern Ohio and northwest Pennsylvania. Otherwise, dry and warm weather will continue until widespread rain returns late Wednesday.
Graphic showing the forecast for the upcoming week

ALT Graphic showing the forecast for the upcoming week

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Dry weather and warmer than average temperatures are expected today and tonight, though skies will be mostly cloudy.
Maps showing today's high temperatures, and tonight's low temperatures

ALT Maps showing today's high temperatures, and tonight's low temperatures

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Dry weather is expected to continue until rain chances return toward the middle of next week. Warmer than average temperatures will also continue, though clouds will increase this weekend.
Graphic showing the forecast through the middle of next week

ALT Graphic showing the forecast through the middle of next week

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Remember tonight!
Image from UEMA (@UEMA100)
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