The Weather Prediction Center

Short Range Forecast Discussion

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Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
500 AM EDT Tue Jul 29 2014

Valid 12Z Tue Jul 29 2014 - 12Z Thu Jul 31 2014

...Heavy rains and flash flooding expected across eastern Colorado
and much of Oklahoma...

...Below normal temperatures will continue beneath a broad trough
carved out over the eastern half of the Nation...

Widespread showers will continue across the central Great Basin
and central/southern Rockies the next few days.  Much of the
activity should be scattered in nature...but anomalous moisture
trapped over the region could lead to locally moderate to heavy
rains.  Slightly farther diving southeastward
through the central Rockies will help organize an area of heavy
rains and thunderstorms to the north of a surface low and frontal
boundary strengthening over the Colorado Front Range Tuesday
afternoon.  Although the drought stricken areas could use the
precipitation...locally heavy downpours could lead to flash
flooding.  The heavy rains and threat for flash flooding will
spread across much of Oklahoma as the energy aloft continues its
southeastward trek Tuesday night into Wednesday.

Below normal temperatures will continue beneath a broad and
anomalous trough carved out over the eastern half of the Nation. 
Much of the east will stay precipitation free; however...a cold
front dropping down from Canada will trigger scattered showers and
thunderstorms across the Great Lakes region.  Also...scattered
convection will continue over Florida and the Gulf Coast the next
few the south of a frontal boundary plunged across the
southern tier of the Country.

While the east remains relatively amplified upper ridge
will keep temperatures above normal over the northern Rockies and
Intermountain West.  Heat advisories have been issued for portions
of Washington state...where daytime temperatures will soar into
triple digits and overnight lows will barely drop out of the


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Last Updated: 500 AM EDT Tue Jul 29 2014