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Mount Washington Valley Forecast

Friday, November 20, 2009
4:51 AM

Low pressure will continue to move up the St Lawrence River Valley today spinning in moisture first from a warm front this morning followed by a cold front this afternoon. The models are suggesting that the low may bring a slight chance for thunderstorms this morning which seems realistic given the current energy present on radar, the recent nearby soundings and regional lightning detection showing a few strikes to our south and west. Some thunderstorm cells may bring heavier periods of rain, small hail, or gusty winds. But overall, this will just be a quick moving rain storm than anything else. Occasional showers will continue overnight into early Saturday for the north as ample moisture is met with ideal upslope flow conditions. Any snow that falls will be little to no accumulations. Down south though, a clearing trend will start as high pressure builds in from the southwest. As the low exits overnight into Saturday, high pressure will build north pushing the drier air up in allowing for clearing. The high crests in Sunday then slides east for Monday. This will set up a southerly flow bringing a return of above average temperatures again for the work week. A low moving up from the Delmarva Peninsula will bring the next shot of daytime rain showers and nighttime rain/snow showers Monday night into Tuesday.

Ryan Knapp
Staff Meteorologist
Forecast

Today:

Cloudy w/ rain tapering to showers. Slight chance of thunderstorms.

Highs: lower 50s°F

Wind: Variable and light becoming SW around 10 mph

Tonight:

Mostly cloudy.

Lows: mid 30s°F

Wind: W around 10 mph

Extended Outlook

Tomorrow:

Mostly sunny.

Highs: lower 50s°F

Lows: upper 20s°F

Sunday

Sunny becoming mostly cloudy overnight.

Highs: upper 40s°F

Lows: upper 20s°F

Monday

Cloudy w/ a chance of rain showers.

Highs: mid 40s°F

Lows: upper 30s°F

Tuesday

Mostly coudy w/ a chance of rain showers.

Highs: lower 50s°F

Lows: mid 30s°F

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