Prognostic Meteorological Discussion
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7
000
FXUS01 KWBC 270758
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
358 AM EDT MON MAR 27 2017

VALID 12Z MON MAR 27 2017 - 12Z WED MAR 29 2017

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF
THE TENNESSEE/SOUTHERN OHIO VALLEYS...

...RAIN/FREEZING RAIN POSSIBLE OVER PARTS OF THE NORTHEAST...

...HEAVY SNOW FOR THE CASCADES AND CENTRAL ROCKIES...

...HEAVY RAIN FOR PARTS OF THE SOUTHERN PLAINS...

A FRONT EXTENDING FROM THE NORTHEAST TO A WAVE OF LOW PRESSURE
OVER THE MIDDLE/LOWER MISSISSIPPI VALLEY THEN THE BOUNDARY
EXTENDING INTO THE SOUTHERN PLAINS WILL MOVE EASTWARD TO THE
NORTHEAST/NORTHERN MID-ATLANTIC COAST TRAILING WESTWARD TO THE
SOUTHERN PLAINS, WHILE THE WAVE OF LOW PRESSURE MOVES TO THE
MID-ATLANTIC BY TUESDAY EVENING.  SHOWERS AND THUNDERSTORMS WILL
DEVELOP ALONG AND AHEAD OF THE COLD FRONT OVER THE MIDDLE/LOWER
MISSISSIPPI VALLEY INTO PARTS OF THE SOUTHERN PLAINS THAT WILL
MOVE TO THE MID-ATLANTIC/SOUTHEAST AND WESTWARD ACROSS THE GULF
COAST STATES BY TUESDAY EVENING.  IN ADDITION, RAIN WILL DEVELOP
OVER PARTS OF THE NORTHEAST TO THE CENTRAL/SOUTHERN APPALACHIANS
THAT WILL MOVE OFF MOST OF THE NORTHEAST COAST OVERNIGHT MONDAY.
ALSO, RAIN/FREEZING RAIN AND SNOW WILL DEVELOP OVER PARTS OF THE
NORTHEAST THROUGH LATE MONDAY NIGHT.  RAIN WILL RETURN TO THE
NORTHEAST ON TUESDAY MORNING INTO TUESDAY EVENING AS THE WAVE OF
LOW PRESSURE MOVES INTO THE MID-ATLANTIC.

MEANWHILE, AN UPPER-LEVEL TROUGH OVER THE WEST COAST WILL FORM AN
UPPER-LEVEL LOW OVER THE CENTRAL/SOUTHERN ROCKIES ON TUESDAY INTO
TUESDAY EVENING.  RAIN AND HIGHER ELEVATION SNOW WILL DEVELOP OVER
THE PACIFIC NORTHWEST AND NORTHERN/CENTRAL CALIFORNIA INTO PARTS
OF THE GREAT BASIN/NORTHERN ROCKIES THAT WILL MOVE INTO THE
CENTRAL/SOUTHERN ROCKIES AND PARTS OF THE NORTHERN/CENTRAL HIGH
PLAINS BY TUESDAY MORNING.  AS THE SYSTEM MOVES INTO THE SOUTHERN
HIGH PLAINS, SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER PARTS OF
THE SOUTHERN HIGH PLAINS THAT WILL EXPAND INTO PARTS OF THE
CENTRAL/SOUTHERN PLAINS BY TUESDAY EVENING.  RAIN AND HIGHER
ELEVATION SNOW WILL CONTINUE OVER PARTS OF THE NORTHERN/CENTRAL
HIGH PLAINS AND THE CENTRAL/SOUTHERN ROCKIES ON TUESDAY INTO
TUESDAY NIGHT.

IN THE WAKE OF THE WESTERN STORM, ONSHORE FLOW WILL AID IN
PRODUCING RAIN AND HIGHER ELEVATION SNOW OVER PARTS OF THE PACIFIC
NORTHWEST FROM OVERNIGHT MONDAY INTO TUESDAY EVENING.


ZIEGENFELDER


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





USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.