Skip to main content
Topic: SPC Day 2 Fire Weather Outlook (Read 51 times) previous topic - next topic

SPC Day 2 Fire Weather Outlook

SPC Day 2 Fire Weather Outlook

[html]SPC Day 2 Fire Weather Outlook
         
Day 2 Fire Weather Outlook Image

Day 2 Fire Weather Outlook 
NWS Storm Prediction Center Norman OK
0242 PM CDT Wed Aug 21 2024

Valid 221200Z - 231200Z

...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL AND EASTERN
NEVADA...

...20z Updated...
The previous outlook remains valid with only minor changes for the
latest guidance. Sporadic thunderstorms are possible over parts of
north-central OR late D2/Thursday into early D3/Friday. While a few
of these storms may be on the drier side, confidence in the coverage
of storms and lightning over dry fuels remains too low for dry
thunder probabilities. See the prior discussion.

..Lyons.. 08/21/2024

.PREV DISCUSSION... /ISSUED 0145 AM CDT Wed Aug 21 2024/

...Synopsis...
A southward-moving shortwave trough is forecast to approach the
Oregon/Washington coasts on Thursday, before moving east on Friday.
This will result in an intensified height gradient across the Great
Basin and a deepening surface low over Oregon that will bring
widespread dry/windy conditions to portions of Oregon, Nevada, and
Idaho.

...Dry/Windy...
Critical fire-weather conditions are forecast across southwestern
and central Nevada, where single-digit relative humidity values and
winds of 25-30 MPH will overlap with ERC values exceeding the
80th-98th annual percentiles. Uncertainty exists in the eastward
extent of the Critical area due to recent wetting rainfall and a
tight gradient in fuel receptiveness to wildfire spread, and some
areal expansion may be needed in future updates.

Elevated fire-weather conditions are expected on the periphery of
the Critical highlight area, as well as portions of northwestern
Nevada into southeastern Oregon. Southeastern Oregon and
northwestern Nevada will have slightly higher boundary-layer
relative humidity values of 10-15%, and slightly slower wind speeds
of 20-25 MPH. However, fuels in the region are widely receptive to
wildfire spread, and if surface winds trend higher, a subsequent
upgrade to Critical may be needed in this area.

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


Read more[/html]

Source: SPC Day 2 Fire Weather Outlook (http://ht**://www.spc.noaa.gov/products/fire_wx/fwdy2.html)