Prognostic Meteorological Discussion
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000
FXUS01 KWBC 292045
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
444 PM EDT MON JUN 29 2015

VALID 00Z TUE JUN 30 2015 - 00Z THU JUL 2 2015

***SCATTERED SHOWERS AND STORMS FOR THE GULF COAST AND EASTERN
U.S.***

***MONSOONAL MOISTURE BECOMING ESTABLISHED OVER SOUTHWESTERN
U.S.***

***HOT WEATHER CONTINUES FOR PACIFIC NORTHWEST AND GREAT BASIN***

THE OVERALL WEATHER PATTERN FOR THE NEXT FEW DAYS WILL BE FEATURED
WITH A LARGE SCALE RIDGE OVER THE WESTERN U.S. AND A TROUGH OVER
THE EASTERN U.S.  SHORTWAVE DISTURBANCES TRACKING EASTWARD OVER
THE WESTERN RIDGE ARE FORECAST TO DROP SOUTHEASTWARD OVER THE HIGH
PLAINS AND EVENTUALLY OVER THE MIDWEST.  THESE FEATURES WILL BE
EMBEDDED IN NORTHWEST FLOW ALOFT AND WILL LIKELY BE ACCOMPANIED BY
THUNDERSTORM COMPLEXES THAT MAY BRING AN INCH OR MORE OF RAIN.
ELSEWHERE ACROSS THE EASTERN U.S., DIURNALLY DRIVEN SHOWERS AND
STORMS ARE LIKELY TO DEVELOP EACH DAY NEAR THE GULF COAST AND ALSO
ALONG THE APPALACHIAN MOUNTAINS AND OHIO VALLEY AREAS.
TEMPERATURES WILL BE SEASONABLE TO SLIGHTLY BELOW AVERAGE FOR MOST
AREAS EAST OF THE ROCKIES.

ACROSS THE WESTERN U.S., EXCESSIVE HEAT WILL CONTINUE MAKING
HEADLINES AS THE STRONG RIDGE ALLOWS FOR SINKING MOTIONS AND THUS
HOT TEMPERATURES.  WIDESPREAD 100+ DEGREE TEMPERATURES REMAIN
LIKELY FOR THE LOWER ELEVATIONS OF WASHINGTON, OREGON, IDAHO,
NEVADA, AND CALIFORNIA THROUGH MIDWEEK, WHICH IS WELL ABOVE
NORMAL.  THE NORMAL HOT TEMPERATURES FOR THE DESERT SOUTHWEST
REGION WILL ALSO BE PRESENT THROUGH THE WEEK.  INCREASING MOISTURE
FROM THE MONSOON WILL MAKE IT FEEL MORE HUMID FOR THE DESERT
SOUTHWEST, ALONG WITH DAILY CHANCES FOR THUNDERSTORMS.  MOST OF
THESE STORMS ARE LIKELY TO FORM OVER THE HIGHER TERRAIN.  THE BEST
WEATHER ACROSS THE WESTERN U.S. WILL BE NEAR THE WEST COAST, WITH
PLEASANTLY COOL TEMPERATURES AND NO RAIN.

D. HAMRICK


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV
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