FNUS75 KVEF 210849

FWSVEF



Spot Forecast for Grapevine Fire...DOI-WFS

National Weather Service Las Vegas NV

149 AM PDT Sun Jun 21 2026



Forecast is based on forecast start time of 0400 PDT on June 21. 



If conditions become unrepresentative...or if you have questions

or concerns with this forecast...please contact our office at

(702) 263-9750.



Please contact our office if you have questions

or concerns with this forecast.



.DISCUSSION...Afternoon relative humidities will be in the single-

digits today and Monday, with overnight recoveries between 15 and 

20 percent. Winds will be lighter today than the last couple of

days, with south-southwesterly winds between 5 and 10 mph both

today and Monday, with speeds decreasing after sunset. Temperatures

will continue to climb through midweek.



.REST OF TONIGHT...



Sky/weather.........Clear. Areas of smoke. 

Min temperature.....Around 60. 

Max humidity........17-20 percent. 

Winds: 

  20 ft winds.......East winds around 5 mph. 

  10000 ft winds....West around 10 mph. 

CWR (>= 0.10).......0 percent. 

Mixing height.......Less than 100 ft AGL. 

Transport winds.....East 5 to 10 knots. 

Ventilation.........Poor. 



.TODAY...



Sky/weather.........Sunny. Areas of smoke. 

Max temperature.....80-83. 

Min humidity........5-8 percent. 

Winds: 

  20 ft winds.......South winds 5 to 10 mph. 

  10000 ft winds....Southwest around 5 mph. 

CWR (>= 0.10).......0 percent. 

Mixing height.......10100 ft AGL. 

Transport winds.....South 5 to 10 knots. 

Ventilation.........Very good. 



.TONIGHT...



Sky/weather.........Mostly clear. Haze in the evening. 

Min temperature.....59-62. 

Max humidity........14-17 percent. 

Winds: 

  20 ft winds.......South winds around 5 mph. 

  10000 ft winds....Southwest around 10 mph. 

CWR (>= 0.10).......0 percent. 

Mixing height.......6400 ft AGL. 

Transport winds.....South 5 to 10 knots. 

Ventilation.........Good. 



.MONDAY...



Sky/weather.........Sunny. 

Max temperature.....81-84. 

Min humidity........5-8 percent. 

Winds: 

  20 ft winds.......South winds 5 to 10 mph. 

  10000 ft winds....South around 10 mph. 

CWR (>= 0.10).......0 percent. 

Mixing height.......8800 ft AGL. 

Transport winds.....South 10 to 15 knots. 

Ventilation.........Excellent. 



$$

Forecaster...Soulat

Requested by...Trace Deeds

Type of request...WILDFIRE

.TAG 2615749.3/VEF

.DELDT 06/21/26

.FormatterVersion 2.0.0

.EMAIL fgoodson@blm.gov,rrowe@blm.gov,bjones@blm.gov,nvecc@firenet.gov