PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
226 AM EST MON JAN 23 2006

VALID 12Z MON JAN 23 2006 - 00Z WED JAN 25 2006

REX BLOCKING ALONG THE WEST COAST HAS HELPED TROUGHING OVER THE
EASTERN CONUS TAP INTO POLAR AIR IN SOUTHEAST CANADA.  MORE
SEASONABLE CONDITIONS SHOULD TAKE OVER WITH TEMPERATURES GENERALLY
COOLING FROM THE NORTHERN MISSISSIPPI VALLEY INTO THE GREAT LAKES
AND NORTHEAST.

ALONG THE EAST COAST...THE FRONTAL ZONE STRETCHING FROM THE MID
ATLANTIC TO THE SOUTHERN GULF OF MEXICO IS FORECAST TO BE THE
FOCUS FOR CONTINUED MODERATE TO HEAVY RAIN/THUNDERSTORMS AS TWO
SURFACE LOWS...ONE IN ALABAMA AND THE OTHER FORMING NEAR
DELMARVA...PROPAGATE ALONG THE FRONT BENEATH COUPLED UPPER LEVEL
JETS.

FURTHER NORTH...A VERY STRONG H5 SHORTWAVE DIGGING SOUTH INTO THE
NORTHERN MISSISSIPPI VALLEY AND GREAT LAKES REGION SHOULD CAUSE
ONLY LIGHT SNOW...PRIMARILY DUE TO LIMITED MOISTURE AVAILABILITY.
SOME LAKE EFFECT SNOW IS ALSO EXPECTED ON THE LEE OF THE GREAT
LAKES AS THE CLIPPER SYSTEM SWEEPS ARCTIC AIR OVER THE UNFROZEN
LAKES.

SCHECK

GRAPHICS A AV*.(sqPAT WWW.HPC.NCEP.NOAA.GOV

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