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National: High pressure brings autumn like weather

4:21 PM, Sep 25, 2013   |    comments
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WKYC


 

A cold front moved through the Great Basin and northern Rockies on Wednesday, while a ridge of high pressure brought autumn like conditions to the upper Midwest and Northeast.

A weak cold front passed through Southern California early Wednesday, which carried almost no precipitation but did manage to drop temperatures in the region. Los Angeles was mostly cloudy today with a daytime high of 75 degrees.

Temperatures in the Southern California deserts also stayed well below 100 degrees due to the recent cold front passage. Meanwhile to the north, several low pressure systems embedded in a stationary front brought rain to parts of the Pacific Northwest and Great Basin, while heavy snow impacted the northern Rockies.

Snow fell in Idaho, Montana, and Wyoming, while showers moved over eastern Washington and northeast Oregon. Eastern Montana and the Dakotas experienced strong thunderstorms as low pressure interacted with a warm, humid air mass over the northern Plains. The central Plains experienced clearer conditions due to a high pressure system over northern Texas.

The southeast continued to experience showers and thunderstorms on Wednesday due to a slow moving frontal boundary over the region. The southwest coast of Florida was impacted by the strongest thunderstorms, while moderately strong thunderstorms moved through Virginia, North Carolina and South Carolina.

The upper Midwest and the Northeast sat under a dominant high pressure system that brought cool, dry conditions to the area. Temperatures were in the 40s and 50s during the early morning, and stayed between the 60s and 70s during the day.

WEDNESDAY'S WEATHER EXTREMES:

HIGHEST TEMPERATURE (DEGREES F).........................98 Cotulla, Texas

HIGHEST HEAT INDEX (DEGREES F)..........................105 Homestead AFB, Fla.

LOWEST TEMPERATURE (DEGREES F)..........................28 Leadville, Colo.

LOWEST WIND CHILL (DEGREES F)...........................3 Barrow, Alaska

HIGHEST WIND GUST (MPH).................................56 Mt. Washington, N.H.

HIGHEST PRECIPITATION (INCHES)..........................2.28 St. Petersburg, Fla.

ON THIS DATE....... Ninety percent of Bermuda's trees were destroyed on this date in 1987 as Hurricane Emily battered the Atlantic island. The hurricane actually only sustained hurricane force winds for a few 10-minute periods, but nonetheless caused $35 million damage.

The Associated Press

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