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
311 AM EDT Tue Jun 28 2016

Valid 12Z Tue Jun 28 2016 - 12Z Thu Jun 30 2016

...Severe thunderstorms and heavy rain possible across portions of
the Northeast and the central/northern plains...

...Isolated thunderstorms possible for parts of the West, with
temperatures remaining above average...

Two cold fronts will move across the eastern third of the U.S.
today, bringing areas of showers and thunderstorms from the
Northeast to the Gulf Coast. Some thunderstorms across the
northeastern U.S. may be severe, and the Storm Prediction Center
has outlined portions of this region for a slight risk of severe
thunderstorms. Additionally, heavy rainfall amounts of 1 to 2
inches are possible, particularly across interior New England.
Locally heavy rainfall will also be possible across the Southeast
and Gulf Coast States, although heavy rain should be less
widespread than in the Northeast. The cold front will begin to
move offshore tonight, bringing an end to rain and storms across
the Mid-Atlantic, but a developing wave of low pressure along the
front will cause showers and thunderstorms to persist across
eastern New England into Wednesday. Scattered thunderstorms will
also continue on Wednesday across the coastal Southeast and the
Gulf Coast.

The same frontal boundary extends west into the plains as a
stationary front, and this will persist through the next couple
days across this area. Scattered showers and thunderstorms are
forecast today across the central and northern High Plains, and
some of these thunderstorms may be severe. The Storm Prediction
Center has outlined portions of this area for a slight risk of
severe thunderstorms through tonight. Heavy rainfall amounts of 1
to 2 inches are also possible, with locally higher amounts. The
stationary front will remain across the same areas on Wednesday,
so scattered showers and thunderstorms are expected to persist. By
Thursday morning, another cold front will dive southward into the
northern plains and Upper Midwest from Canada, bringing increased
chances of showers and thunderstorms to the Upper Midwest and
Upper Great Lakes.

Across the West, isolated afternoon and evening showers and
thunderstorms are possible, but many areas will remain dry and
hot, with afternoon high temperatures expected to be 10 to 15
degrees above average today and Wednesday.


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Last Updated: 311 AM EDT Tue Jun 28 2016