Storm Prediction Center
Day 1 and Day 2 Fire Weather Outlooks
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 180917
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0417 AM CDT SUN APR 18 2004
VALID 181200Z - 191200Z
...CRITICAL FIRE WEATHER AREA FOR ERN CO/WRN KS/SW NEB...
...SYNOPSIS...
PROGRESSIVE UPPER PATTERN WILL REMAIN OVER THE CONUS THROUGH THE
PERIOD. SHORTWAVE TROUGH INITIALLY NEAR THE FOUR CORNERS REGION WILL
REACH THE UPPER MISSISSIPPI VALLEY THIS EVENING. LOW PRESSURE AND
ASSOCIATED COLD FRONT/DRYLINE WILL SHIFT EWD THROUGH THE UPPER
MIDWEST/CNTRL PLAINS...WITH SCATTERED TSTMS PREVALENT OVER THE UPPER
MIDWEST. ELSEWHERE UPPER RIDGING/SURFACE HIGH PRESSURE WILL BE
DOMINANT SCENARIO ACROSS THE SE STATES/MID ATLANTIC.
...CRITICAL FIRE WEATHER AREA 1 - ERN CO/WRN KS/SW NEB...
PRIMARY CONDITIONS: VERY STRONG WINDS WITH LOW RH/WARM TEMPERATURES
VERY STRONG/GUSTY WINDS WILL DEVELOP ACROSS MUCH OF THE WRN HIGH
PLAINS BY THIS AFTERNOON IN DEEPLY MIXED BOUNDARY LAYER ENVIRONMENT
WEST OF COLD FRONT/DRYLINE. SUSTAINED W/SW WINDS AS HIGH AS 25-35
MPH /WITH SIGNIFICANTLY HIGHER GUSTS/ ARE LIKELY TO MATERIALIZE.
AFTERNOON TEMPERATURES WILL REACH THE 70S/80S...WITH MINIMUM RH
VALUES AROUND/BELOW CRITICAL THRESHOLDS OWING TO DOWNSLOPE
TRAJECTORIES. RH VALUES COINCIDENT WITH PEAK HEATING WILL RANGE FROM
8-15 PERCENT IN ERN CO...TO 15-20 PERCENT IN SW NEB/WRN KS. IN SPITE
OF RECENT PRECIPITATION /NAMELY LAST WEEKEND/ AND MARGINAL NATURE OF
FUELS...MAGNITUDE OF EXPECTED WIND SPEEDS AMIDST WELL MIXED
ENVIRONMENT SUGGESTS CRITICAL OUTLOOK IS WARRANTED.
...MISSOURI VALLEY AND MUCH OF THE MIDDLE/UPPER MISSISSIPPI
VALLEY...
BROAD AREA OF THE MIDDLE PART OF THE COUNTRY WILL SEE GUSTY SW WINDS
AHEAD OF CNTRL PLAINS COLD FRONT/DRYLINE. WINDS SPEEDS OF 20-30 MPH
WITH HIGHER GUSTS WILL BE COMMON...ESPECIALLY IN THE MISSOURI
VALLEY. IN SPITE OF THE GUSTY WINDS AND WARM TEMPERATURES IN THE
80S...LOW LEVEL MOIST AXIS WILL GENERALLY KEEP RH VALUES
SUFFICIENTLY ABOVE CRITICAL THRESHOLDS.
...N FL/AL/GA/SC...
AFTERNOON TEMPERATURES WILL REACH THE 80S /AWAY FROM THE COASTAL
AREAS/ WITH MINIMUM RH VALUES AROUND/BELOW CRITICAL THRESHOLDS OWING
TO S/SE FLOW AROUND WRN ATLANTIC HIGH PRESSURE. HOWEVER PROHIBITIVE
FACTOR FOR CRITICAL FIRE WEATHER CONDITIONS WILL BE RELATIVELY LIGHT
WIND SPEEDS /AROUND 10 MPH OR LESS/.
..GUYER.. 04/18/2004
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
ZCZC SPCFWDDY2 ALL
FNUS22 KWNS 180950
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0450 AM CDT SUN APR 18 2004
VALID 191200Z - 201200Z
...NO CRITICAL AREAS...
...SYNOPSIS...
PROGRESSIVE/LOW AMPLITUDE UPPER FLOW WILL PREVAIL OVER THE CONUS ON
MONDAY. EMBEDDED SHORTWAVE TROUGH IS FORECAST TO TRANSLATE THROUGH
THE CNTRL ROCKIES...WHILE ANOTHER IMPULSE APPROACHES THE PACIFIC
NORTHWEST. COLD FRONT /WITH ASSOCIATED SCATTERED PRECIPITATION/ WILL
TRANSITION THROUGH THE GREAT LAKES REGION...WHILE WRN PORTION OF THE
FRONT STALLS ACROSS THE CNTRL PLAINS/MIDDLE MISSISSIPPI VALLEY.
ELSEWHERE HIGH PRESSURE WILL REMAIN ENTRENCHED ACROSS THE SE STATES.
...SE STATES...
WITH LITTLE CHANGE IN THE REGIONAL PATTERN...WARM/DRY AIRMASS WILL
PERSIST ACROSS THE SE STATES. IN SPITE OF WARM TEMPERATURES AND RH
VALUES AROUND/BELOW CRITICAL THRESHOLDS...LIGHT WIND SPEEDS /10 MPH
OR LESS/ WILL AGAIN BE MITIGATING FACTOR FOR CRITICAL FIRE WEATHER
CONDITIONS.
..GUYER.. 04/18/2004
...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...
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