Wisp Resort / McHenry

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McHenry, MD

Forecast Discussion



... Building high pressure should end any remaining snow showers early this morning. Dry weather is then expected under high pressure through early next week.

NEAR TERM /UNTIL 6 PM THIS EVENING/... Adjusted early morning cloud cover N of PIT based on satellite, sfc obs and near term meso analysis trends. Also corrected the year of the record low for PIT in the climate section. Previous...Increasing subsidence under building high pressure should end the remaining snow showers N of I 80 and in the ridges early this morning. Otherwise, dry weather is expected today under the high. Some increase in mid and high clouds is expected this afternoon in warm advection aloft. Cold air will remain at the sfc however, with highs around 20 degrees below average.

SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY NIGHT/... Shortwave ridging ahead of an approaching Midwestern trough should maintain dry weather through early Thursday. The trough is progged to approach and cross the Upper OH Valley region Thursday afternoon through early Friday, with mainly an increase in clouds expected. The best moisture and upper support is expected to stay north of the area, with dry weather expected across our region.

Some moderation in temperature is expected, though readings should still average around 10 degrees below seasonable levels.

LONG TERM /SATURDAY THROUGH TUESDAY/... Ridging ahead of an approaching Central CONUS trough should maintain dry weather through early next week. Clouds, and only slight chances for precip, are expected to return as the trough approaches by Tuesday. At this time, it appears the best chance for precip should remain east of the area with a coastal low. After a colder than average weekend, temperatures should return closer to seasonable levels by early next week.