Prognostic Meteorological Discussion
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000
FXUS01 KWBC 190703
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
202 AM EST THU JAN 19 2017

VALID 12Z THU JAN 19 2017 - 12Z SAT JAN 21 2017

...RAIN AND MOUNTAIN SNOW CONTINUES FOR THE WESTERN U.S., AND
HEAVY RAIN REMAINS LIKELY FOR THE DEEP SOUTH...

THE WEATHER PATTERN ACROSS THE WESTERN U.S. HAS BECOME QUITE
ACTIVE AGAIN WITH PERIODS OF MODERATE TO HEAVY RAIN AND MOUNTAIN
SNOW, COMPLIMENTS OF MULTIPLE LOW PRESSURE SYSTEMS AFFECTING THE
WEST COAST.  THIS WEATHER PATTERN WILL ALSO PROVIDE CENTRAL AND
SOUTHERN CALIFORNIA WITH BADLY NEEDED PRECIPITATION, WITH THE
HEAVIEST RAIN EXPECTED FOR THE COASTAL MOUNTAIN RANGES, AND THE
HEAVIEST SNOW OVER THE SIERRA NEVADA MOUNTAINS.  NUMEROUS WINTER
WEATHER ADVISORIES AND WINTER STORM WARNINGS ARE IN EFFECT ACROSS
INTERIOR PORTIONS OF THE WEST.  STRONG AND GUSTY WINDS ARE ALSO
LIKELY NEAR THE COAST AND FOR THE HIGHER ELEVATIONS.

HEAVY RAIN AND THUNDERSTORMS WILL REMAIN IN THE FORECAST ACROSS
THE DEEP SOUTH THROUGH THE END OF THE WEEK AS A NEW SURFACE LOW
DEVELOPS ALONG THE FRONT AND SLOWLY LIFTS NORTHWARD.  THE HIGHEST
RAINFALL TOTALS ARE ANTICIPATED FROM SOUTHERN LOUISIANA TO
TENNESSEE, AND ALSO THE FLORIDA PENINSULA WHERE A COUPLE INCHES OF
ADDITIONAL RAINFALL IS POSSIBLE.  SOME STRONG THUNDERSTORMS ARE
ALSO LIKELY AND COULD PRODUCE LOCALIZED FLOODING.  SOME OF THIS
MOISTURE WILL ALSO MAKE IT TO THE OHIO VALLEY AND MID-ATLANTIC
REGION TO CLOSE OUT THE WORK WEEK.

D. HAMRICK


GRAPHICS AVAILABLE AT WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_WBG.PHP
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