Thursday, November 22, 2012

Thanksgiving Forecast....

One more warm and sunny day is expected across the area for the Thanksgiving Holiday before a cold front brings a big temperature change for the Ohio Valley region. For today, high pressure currently stretching across the region will slowly shift eastward leaving the area the last full day of sunny and warm conditions.  Highs are expected to reach the mid to upper 60's with light and variable winds from the southwest making the holiday an absolute gorgeous one.
SPC Mesoanalysis Map 500mb heights, temps, and winds valid Thursday 14Z. Ridge building over the south with the short wave trough to our north and west.
Looking ahead, a cold front will move into parts of southern Indiana late tonight while advancing southeastward near the Ohio River by tomorrow morning.  The cold front will bring  showers into the forecast as the highest coverage of precipitation looks to be just to our west.  Shower activity will become more scattered in nature as the front progresses eastward over our area.   The HPC's  latest QPF map shows a light to moderate rainfall event over the Midwest with heaviest rainfall falling in parts of Missouri and southern Illinois.
HPC's latest QPF map showing a light to moderate rainfall event over 24-36 hours.
As the front passes through Friday, some additional moisture swinging around the upper level trough may bring some scattered clouds in the north during the afternoon.  At this time, winds should begin to pick up out of the northwest behind the front with gusty conditions expected with winds up to 25 mph.  Colder air will filter in behind the front just in time for the weekend, as temperature will be noticeably cooler across the region.
Friday: Showers likely. High: 54 Northwest winds around 10-15 mph.
Friday Night: Clearing skies and cold. Low: 28. Light Northwest winds around 5-10 mph.
Saturday: Sunny and cool. High: 41. Northwest wind around 5 mph.
Saturday night: Clear and cold. Low: 24.

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