The Weather Prediction Center

Short Range Forecast Discussion

[Abbreviations and acronyms used in this product]
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Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
356 AM EDT Mon Aug 29 2016

Valid 12Z Mon Aug 29 2016 - 12Z Wed Aug 31 2016

...Showers and thunderstorms expected across the central Plains
and Midwest...

...Hot and humid conditions will persist from Texas to the
Mid-Atlantic region...

...West Coast states will continue to be warm and dry...

A change in the weather pattern is coming to the north-central
U.S. as a cold front sinks southward from Canada.  A surge of warm
and humid air ahead of the front will likely lead to the
development of showers and storms from eastern New Mexico to the
upper Great Lakes, with isolated areas of heavy rainfall that
could lead to localized flooding issues.  A few severe
thunderstorms will also be possible.  Cooler and more pleasant
conditions are expected for the beginning of the week over the
north central U.S. as a quality airmass moves into the region.

Other areas of the U.S. with prospects for heavy rainfall over the
next couple of days will be the Texas Gulf Coast and southern
Florida.  A tropical depression crossing south of Key West is
expected to bring widespread cloudiness with multiple rounds of
showers and storms, with several inches of rainfall possible over
South Florida.  A weak upper low over the Gulf of Mexico, combined
with deep layer moisture advecting northward around the upper
level ridge, will lead to widespread rainfall near the Texas
coast, with the heaviest activity likely remaining just offshore. 
Amounts of 1 to 3 inches are possible in some areas.

The heat and humidity will persist across much of the southern
Plains, Deep South, and Mid-Atlantic region through the first half
of the week, with widespread highs in the upper 80s to mid 90s,
and lows in the 70s.  This is courtesy of the upper level ridge
and relative lack of cloudiness and rainfall.  Out west, it should
remain dry and warm, with no appreciable chance of rainfall from
the northern Rockies to California, except for some rain over
northwestern Washington state as a disturbance approaches the
Pacific Northwest. 


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Last Updated: 356 AM EDT Mon Aug 29 2016