Fire Weather Outlook Discussion

Day 2 - Storm Prediction Center Norman, Oklahoma

FNUS22 KWNS 240456
FWDDY2

Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
1155 PM CDT Sun Jun 23 2019

Valid 251200Z - 261200Z

...Synopsis...
Flow aloft over the western third of the CONUS will back to more
southwesterly and strengthen some in response to a deepening
mid-level low just off the Washington/Oregon coast.  Once again, dry
low-level conditions will exist across portions of the Great Basin,
which will result in elevated fire weather conditions in a few
areas.

...Northwestern Nevada...
Strong flow aloft and vertical mixing will once again result in
areas of 20-30 mph west-southwesterly surface winds during peak
heating hours.  Critically low (5-15%) RH will also develop across
the region in response to insolation within a dry airmass across the
region.  Fuels remain marginal for fire weather spread given the wet
spring and overall slow start to the fire weather season.  In
response, an elevated fire delineation remains in place.

...Lower Colorado River Valley...
Strengthening mid-level flow will encourage areas of 15-25 mph
southerly flow across the region during the afternoon amidst
critically low RH values (5-15%).  Meanwhile, fuels are slightly
drier (and ERCs higher) especially from far southern Nevada
southward into southwestern Arizona.  Stronger flow will be
displaced from the drier fuels, however.  Though locally critical
fire weather conditions may occur across the region, the overall
fire weather scenario is consistent with elevated criteria, and an
attendant delineation is in place for this outlook.

..Cook.. 06/24/2019

...Please see www.spc.noaa.gov/fire for graphic product...

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