Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
337 PM EST Thu Feb 26 2015
Valid 00Z Fri Feb 27 2015 - 00Z Sun Mar 01 2015
...More quiet weather is expected for the eastern U.S. as unsettled
weather moves into the western U.S...
After a series of quick-moving winter storms, the eastern half of the U.S.
is expected to enter a period of quieter weather as a large high pressure
system builds in from the northern Plains and into the entire eastern U.S.
by Saturday. Arctic air will accompany this high pressure system where
temperatures of 10 to 30 degrees below normal will be widespread. The
only areas seeing precipitation will be in southern Florida where showers
and thunderstorms are expected behind a cold front. Another area of
precipitation will be from the Ohio Valley into the central Appalachians
where snow showers should initially accompany a dissipating cold front.
Meanwhile, the West continues to enjoy near to above normal temperatures.
However, an upper-level shortwave trough is beginning to dig southward
from the Gulf of Alaska. This trough is expected to bring increasing
moisture as well as colder air into the Pacific Northwest Friday and into
Saturday. We can expect rain near the coast will begin to spread steadily
to the south and east into the interior mountains as snow Friday into
Saturday. Over the central Rockies, upslope flow continues to support
snow in western Colorado into New Mexico. Upper-level winds are expected
to push to moisture southeastward into the central and southern Plains
where light snow is expected over the Panhandles of Texas and Oklahoma on
Friday. By Friday night into Saturday morning, we could be looking at
sleet and freezing rain forming in central Texas. Rain showers are also
expected to form down into southern Texas.
Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php