959
FNUS22 KWNS 070756
FWDDY2
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0156 AM CST SAT NOV 07 2009
VALID 081200Z - 091200Z
..NO CRITICAL AREAS
..SYNOPSIS
A BROAD UPPER LEVEL TROUGH WILL CONTINUE TO RESIDE ACROSS THE WRN
HALF OF THE NATION ON SUNDAY. DOWNSTREAM FROM THE TROUGH...A FRONTAL
BOUNDARY IS FORECAST TO SAG SWD ACROSS THE CENTRAL AND SRN
PLAINS...WHILE A WARM FRONT LIFTS N INTO THE GREAT LAKES REGION.
GUSTY WINDS AND MARGINALLY LOW RH VALUES WILL BE POSSIBLE OVER THE
NRN HIGH PLAINS AS A LOW AMPLITUDE UPPER DISTURBANCE MOVES E ACROSS
THE REGION. MEANWHILE...A DRY LOW LEVEL AIRMASS LOCATED ALONG THE
WRN EDGE OF A LARGE SURFACE HIGH WILL BEGIN TO SPREAD NWD ACROSS
PORTIONS OF WRN NC.
..ERN MT/WRN ND
A LOW AMPLITUDE S/W TROUGH IS FORECAST TO MOVE E ACROSS MT DURING
SUNDAY. A WELL MIXED BOUNDARY LAYER COMBINED WITH STRENGTHENING FLOW
ALOFT ASSOCIATED WITH THE PASSING WAVE MAY RESULT IN WINDS GUSTING
UP TO 30 MPH OVER PORTIONS OF ERN MT/WRN ND. HOWEVER...COOL DAYTIME
HIGHS AND MARGINAL RH VALUES /GENERALLY AOA 25-30 PERCENT/ DO NOT
APPEAR TO SUPPORT CRITICAL FIRE WEATHER CONDITIONS AT THIS TIME.
..WRN NC
A BROAD AREA OF SURFACE HIGH PRESSURE IS FORECAST TO REMAIN CENTERED
OVER THE MID ATLANTIC COAST. THE AIRMASS ASSOCIATED WITH THIS HIGH
HAS A HISTORY OF SUPPORTING RH VALUES AROUND 30 PERCENT DURING THE
LAST FEW DAYS...AND MODEL GUIDANCE INDICATES THIS WILL BE POSSIBLE
ONCE AGAIN ON SUNDAY ACROSS PORTIONS OF WRN NC. WEAK FLOW AT THE
SURFACE AND ALOFT SHOULD PRECLUDE THE DEVELOPMENT OF CRITICAL FIRE
WEATHER CONDITIONS DESPITE THE POTENTIAL FOR FAVORABLE SURFACE
HEATING AND LOW RH VALUES.
..GARNER.. 11/07/2009
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
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