Prognostic Meteorological Discussion
Issued by NWS

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2

000
FXUS01 KWBC 101956
PMDSPD

SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
255 PM EST SUN DEC 10 2017

VALID 00Z MON DEC 11 2017 - 00Z WED DEC 13 2017

...CRITICAL FIRE WEATHER CONDITIONS PERSISTING ACROSS SOUTHERN
CALIFORNIA...

...LOCALLY HEAVY LAKE EFFECT SNOWFALL TO CONTINUE DOWNWIND OF THE
GREAT LAKES THROUGH SUNDAY NIGHT...

...SNOWY CONDITIONS TO RETURN TO PORTIONS OF THE NORTHEAST ON
TUESDAY...

...SUBFREEZING TEMPERATURES REACHING IN CENTRAL FLORIDA MONDAY
MORNING...

HIGH PRESSURE WITH DRY CONDITIONS AND ABOVE NORMAL TEMPERATURES
WILL CONTINUE ACROSS MUCH OF THE WESTERN AND CENTRAL U.S. THROUGH
THE EARLY PART OF THE WEEK.  STRONG, GUSTY SANTA ANA WINDS ALONG
WITH LOW RELATIVE HUMIDITIES WILL CONTRIBUTE TO DANGEROUS FIRE
CONDITIONS ACROSS PORTIONS OF SOUTHERN CALIFORNIA THROUGH MONDAY.

LAKE EFFECT SNOW WARNINGS REMAIN IN EFFECT IN THE LEES OF LAKES
ERIE AND ONTARIO, WHERE STRONG, COLD WESTERLY WINDS ARE EXPECTED
TO SUPPORT NARROW BANDS OF HEAVY LAKE EFFECT SNOWS THROUGH THE
OVERNIGHT HOURS INTO EARLY MONDAY.

A CLIPPER SYSTEM IS EXPECTED TO DELIVER MORE WIDESPREAD, BUT
GENERALLY LIGHT SNOWS TO PORTIONS OF THE UPPER MIDWEST AND WESTERN
GREAT LAKES AS IT DROPS OF OUT CENTRAL CANADA SUNDAY NIGHT.

SNOWY CONDITIONS ARE EXPECTED TO RETURN TO PORTIONS OF THE
NORTHEAST ON TUESDAY AS AN AREA OF LOW PRESSURE QUICKLY
INTENSIFIES NEAR THE NORTHERN NEW ENGLAND COAST ON TUESDAY, WITH
LOCALLY HEAVY ACCUMULATIONS POSSIBLE FOR PARTS OF NORTHERN NEW
YORK AND INTERIOR NORTHERN NEW ENGLAND.

MEANWHILE, COLD HIGH PRESSURE WILL SUPPORT BELOW NORMAL
TEMPERATURES ACROSS THE SOUTHEAST INTO MONDAY, WITH LOWS EXPECTED
TO DROP BELOW FREEZING AS FAR SOUTH AS THE NORTHERN TAMPA BAY AREA
MONDAY MORNING.

PEREIRA

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.