Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
500 PM EDT Mon Jul 28 2014
Valid 00Z Tue Jul 29 2014 - 00Z Thu Jul 31 2014
...Cooler than normal July weather continues for much of the eastern half
of the country...
...Summer-time showers and thunderstorms linger in Florida and near the
...Monsoonal moisture will continue to deliver showers and thunderstorms
across much of the interior western U.S...
During the short-range forecast period, an unusually broad and deep
upper-level trough is expected to remain the dominant feature over the
eastern half of the country. This feature will bring a nice stretch of
unusually cool and pleasant July weather into the region through mid-week.
The coolest air will be found in the upper Great Lakes where temperatures
are expected to drop to near 50 degrees by daybreak. Nevertheless, a new
cold front will bring a reinforcing shot of cooler air from Canada by
Wednesday, together with scattered showers and thunderstorms. Meanwhile,
the typical summer-time heat and humidity will be shoved well to the south
along the Gulf coast and into Florida with showers and thunderstorms
lingering through mid-week.
Out West, with an upper-level ridge remaining in place, monsoonal type
showers and thunderstorms are expected to be the rule over the interior
mountains through mid-week, which will be enhanced by heating during late
afternoon and early evening hours. An upper-level impulse over the
central/southern Rockies is forecast to trigger additional showers and
thunderstorms and is expected to push them out into the central Plains by
early on Wednesday. This disturbance will also initiate the southward
progression of a cold front through the southern Rockies and southern
Plains during the day on Wednesday.
Elsewhere, weather should remain dry along the West Coast through mid-week.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php