Prognostic Meteorological Discussion
Issued by NWS

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary On
Versions: 1 2 3
000
FXUS01 KWBC 170801
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
400 AM EDT THU AUG 17 2017

VALID 12Z THU AUG 17 2017 - 12Z SAT AUG 19 2017

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE GREAT LAKES/OHIO VALLEY...

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
THE SOUTHERN HIGH PLAINS...

...HEAVY RAIN POSSIBLE OVER PARTS OF THE SOUTHERN PLAINS/LOWER
MISSISSIPPI VALLEY...

...HEAVY RAIN POSSIBLE OVER PARTS OF THE CAROLINAS...

A STORM OVER THE UPPER MISSISSIPPI VALLEY WILL LIFT NORTHEASTWARD
TO EASTERN ONTARIO WHILE THE ASSOCIATED FRONT MOVES FROM THE
UPPER/MIDDLE MISSISSIPPI VALLEY/SOUTHERN HIGH PLAINS TO NORTHERN
APPALACHIANS/MID-ATLANTIC AND THE SOUTHEAST/LOWER MISSISSIPPI
VALLEY BY FRIDAY EVENING.  THE SYSTEM WILL PRODUCE SHOWERS AND
THUNDERSTORMS FROM UPPER MISSISSIPPI VALLEY/GREAT LAKES/OHIO
VALLEY TO THE MIDDLE/LOWER MISSISSIPPI VALLEY AND THE SOUTHERN
PLAINS THAT WILL MOVE EASTWARD TO THE NORTHEAST/MID-ATLANTIC INTO
THE CENTRAL/SOUTHERN APPALACHIANS AND THE CENTRAL GULF COAST BY
FRIDAY EVENING.  IN ADDITION, MOISTURE RICH AIR AND DAYTIME
HEATING OVER THE SOUTHEAST INTO PARTS OF THE MID-ATLANTIC WILL AID
IN PRODUCING SHOWERS AND THUNDERSTORMS OVER THE AREA ON THURSDAY
AND FRIDAY AFTERNOON AND EVENING.

MEANWHILE, UPPER-LEVEL ENERGY WILL COALESCES OVER THE NORTHERN
PLAINS OVERNIGHT THURSDAY MOVING TO THE MIDDLE/UPPER MISSISSIPPI
VALLEY BY FRIDAY EVENING.  THE ENERGY WILL PRODUCE SHOWERS AND
THUNDERSTORMS OVER PARTS OF THE PLAINS BY THURSDAY EVENING THAT
WILL MOVE EASTWARD TO THE UPPER/MIDDLE MISSISSIPPI VALLEY AND THE
SOUTHERN PLAINS BY FRIDAY EVENING.


ZIEGENFELDER


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





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