Fire Weather Outlook Discussion
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
000
FNUS22 KWNS 280815
FWDDY2

DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0314 AM CDT THU AUG 28 2014

VALID 291200Z - 301200Z

...SYNOPSIS...
A TRANSITION TOWARDS A MORE PROGRESSIVE LARGE-SCALE PATTERN WILL
OCCUR. A SERIES OF SHORTWAVE UPPER TROUGHS WILL MOVE ACROSS THE NRN
LATITUDES OF THE CONUS...THE STRONGEST OF WHICH WILL AFFECT THE PAC
NW...AIDING IN A MODEST INCREASE IN SFC WINDS ACROSS PARTS OF
WA/ORE. MEANWHILE...DRIER AIR WILL ENCOMPASS MUCH OF THE WRN CONUS
GIVEN PREDOMINANTLY WLY FLOW IN PLACE...WITH TSTM POTENTIAL LIMITED
PRIMARILY TO THE INTER-MOUNTAIN WEST.

...PARTS OF N-CNTRL ORE AND S-CNTRL WA...
LARGE-SCALE PRESSURE FALLS OVER THE GREAT BASIN/INTER-MOUNTAIN WEST
WILL LEAD TO AN ENHANCED SFC PRESSURE GRADIENT ACROSS WA/ORE AND
SLIGHTLY STRONGER WINDS THAN THU/D1...WITH SUSTAINED SPEEDS OF 15-20
MPH /LOCALLY STRONGER/ FORECAST TO OCCUR. WITH A STRONGER ONSHORE
COMPONENT...MARINE INFLUENCE SHOULD EXTEND FARTHER INLAND THAN
THU/D1...BUT THE BOUNDARY LAYER IS FORECAST TO REMAIN SUFFICIENTLY
DRY ACROSS MOST OF THE COLUMBIA BASIN TO YIELD RH VALUES IN THE
LOW-MID 20S...WITH CONDITIONS LOCALLY APPROACHING CRITICAL
THRESHOLDS.

...NWRN NV...
A GRADUAL INCREASE IN LOW-MIDLEVEL FLOW ON THE SRN PERIPHERY OF THE
PAC NW UPPER TROUGH WILL OCCUR ACROSS THE NRN SIERRA INTO THE WRN
GREAT BASIN. SUSTAINED SPEEDS OF 15 MPH /LOCALLY STRONGER/ WILL BE
POSSIBLE...ALONG WITH ENHANCED DRYING VIA DOWNSLOPE EFFECTS
CONTRIBUTING TO MIN RH VALUES NEAR 15 PERCENT. ELEVATED FIRE WEATHER
POTENTIAL APPEARS TO BE TOO LOCALIZED/BRIEF TO WARRANT NECESSARY
HIGHLIGHTS ATTM.

..ROGERS.. 08/28/2014

...PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT...



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.