FNUS76 KOTX 041138

FWSOTX



Spot Forecast for North Siwash Unit 29B...USFS

National Weather Service Spokane WA

438 AM PDT Mon May 4 2026



Forecast is based on ignition time of 0600 PDT on May 04. 

If conditions become unrepresentative...contact the National Weather

Service.



.DISCUSSION...



A weak dry cold front from the north will result in persistent 

east to northeast winds for the burn site into Tuesday.  Wind gusts of 

around 15 mph will develop this afternoon and increase slightly tonight 

into Tuesday with gusts up to 20 mph.



.TODAY...



Sky/weather.........Mostly sunny. 

CWR.................0 percent. 

Chance of lightning.5 percent. 

Max temperature.....Around 67. 

Min humidity........35-40 percent. 

Wind (20 ft)........East winds 4 to 8 mph.  Gusts up to 15 mph

                    in the afternoon. 

Mixing height.......Near surface through 0800 increasing to 

                    5500 ft AGL in the afternoon. 

Transport winds.....East around 10 mph. 



.TONIGHT...



Sky/weather.........Mostly clear. 

CWR.................0 percent. 

Chance of lightning.5 percent. 

Min temperature.....Around 40. 

Max humidity........65-70 percent. 

Wind (20 ft)........East winds 6 to 10 mph with gusts up to 20 mph.

Mixing height.......Falling to 500 feet AGL by 2000. 

Transport winds.....East around 10 mph. 



.TUESDAY...



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

CWR.................0 percent. 

Chance of lightning.0 percent. 

Max temperature.....Around 59. 

Min humidity........30-34 percent. 

Wind (20 ft)........Northeast winds 6 to 12 mph with gusts to around 

                    20 mph. 

Mixing height.......Near surface through 0800 increasing to 6000 ft 

                    AGL in the afternoon. 

Transport winds.....Northeast 10 to 15 mph. 



$$

Forecaster...JW

Requested by...Justin Colvin

Type of request...PRESCRIBED

.TAG 2612602.0/OTX

.DELDT 05/04/26

.FormatterVersion 2.0.0

.EMAIL justin.l.colvin@usda.gov,will.dalby@usda.gov