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
east...energy 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 days...to the south of a frontal boundary
plunged across the southern tier of the Country.
While the east remains relatively cool...an 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 seventies.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php