100
FNUS21 KWNS 021648
FWDDY1
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1147 AM CDT MON JUN 02 2025
VALID 021700Z - 031200Z
THE ONGOING FORECAST FOR ELEVATED FIRE WEATHER CONDITIONS ACROSS THE
NORTHERN SACRAMENTO VALLEY IN CALIFORNIA IS ON TRACK WITH NO CHANGES
NEEDED. SURFACE OBSERVATIONS THIS MORNING ACROSS THE REGION
INDICATE RH VALUES ALREADY BELOW 20% WITH NORTHERLY WIND GUSTS OVER
20 MPH. THESE ELEVATED FIRE WEATHER CONDITIONS SHOULD PERSIST INTO
THE MIDDLE OF THE AFTERNOON WHEN THE WIND SPEEDS SHOULD WEAKEN AS
THE SURFACE PRESSURE GRADIENT RELAXES ACROSS THE AREA.
..JIRAK.. 06/02/2025
PREV DISCUSSION
/ISSUED 0106 AM CDT MON JUN 02 2025/
..SYNOPSIS
BROAD CYCLONIC FLOW WILL BE PRESENT ACROSS MUCH OF THE NORTHERN TIER
STATES TODAY. A CUTOFF UPPER LOW WILL SLOWLY SAG SOUTHEASTWARD OFF
THE SOUTHERN CALIFORNIA COAST. HIGH PRESSURE WILL MOVE INTO THE
NORTHWEST AND NORTHERN ROCKIES. A SURFACE FRONT WILL STALL IN THE
CENTRAL/SOUTHERN GREAT BASIN.
..SACRAMENTO VALLEY
A FEW HOURS OF ELEVATED FIRE WEATHER APPEARS PROBABLE IN THE
NORTHERN SACRAMENTO VALLEY DURING THE MORNING INTO THE EARLY
AFTERNOON. NORTHERLY WINDS OF 15-25 MPH WILL OCCUR ALONG WITH RH
FALLING TO 15-20%. WHILE FUELS ARE ONLY MARGINALLY RECEPTIVE (ERCS
JUST NOT REACHING THE 70TH PERCENTILE PER ONCC), THE CRITICAL
METEOROLOGICAL CONDITIONS SUGGEST AT LEAST SOME RISK FOR FIRE
SPREAD.
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
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