Skip to main content
Topic: SPC Day 1 Fire Weather Outlook (Read 65 times) previous topic - next topic

SPC Day 1 Fire Weather Outlook

SPC Day 1 Fire Weather Outlook

[html]SPC Day 1 Fire Weather Outlook
         
Day 1 Fire Weather Outlook Image

Day 1 Fire Weather Outlook 
NWS Storm Prediction Center Norman OK
1109 AM CDT Thu Apr 21 2022

Valid 211700Z - 221200Z

...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHEAST NEW MEXICO
INTO THE TEXAS PANHANDLE...

Northern portions of the Critical area were trimmed to reflect the
latest guidance consensus. Sunny skies prevail over the Southwest
into the southern High Plains, allowing for ample boundary-layer
mixing to occur. As such, the previous forecast (see below) is
expected to remain on track, with no other major changes or
additions made.

..Squitieri.. 04/21/2022

.PREV DISCUSSION... /ISSUED 0200 AM CDT Thu Apr 21 2022/

...Synopsis...
A large-scale trough will move ashore over the West Coast, while
broad west-southwesterly flow overspreads the Rockies. This will
encourage the development of a dryline over the eastern TX Panhandle
southward into northwest TX. Farther north, stronger downslope flow
will result in a deepening surface low over parts of WY, with a
corresponding tight pressure gradient developing over the central
High Plains.

...Southwest into the southern High Plains...
Widespread 10-15 percent minimum RH will develop across the
Southwest into the southern High Plains, where breezy southwesterly
surface winds are expected. From eastern NM into the OK/TX
Panhandles, deep boundary-layer mixing into the enhanced flow aloft
will favor 5-10 percent RH amid 20-25 mph sustained southwesterly
surface winds behind the dryline. The co*bination of strong surface
winds and warm/dry boundary-layer conditions atop highly receptive
fuels will support a critical fire-weather threat. 

...Central High Plains...
In response to the tightening surface pressure gradient, strong
southerly surface winds of 25+ mph will overspread parts of the
central High Plains (including portions of northeastern CO, western
NE, and southeastern WY). While RH should generally remain above 30
percent owing to increasing moisture return, the strong/gusty
surface winds coupled with critically dry fuels could support at
least locally elevated fire-weather conditions during the afternoon.
 
...Florida Peninsula...
Breezy easterly surface winds near 15 mph will persist over the
Florida Peninsula. While minimum RH could fall to near 35 percent
over the western portion of the peninsula, a minimal overlap of the
breezy surface winds and low RH precludes highlights at this time.

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


Read more[/html]

Source: SPC Day 1 Fire Weather Outlook (http://ht**://www.spc.noaa.gov/products/fire_wx/fwdy1.html)