544
FNUS76 KOTX 072015
FWSOTX

Spot Forecast for Pioneer Fire...National Weather Service
National Weather Service Spokane WA
115 PM PDT Sun Jul 7 2024

Forecast is based on forecast start time of 0700 PDT on July 08.
If conditions become unrepresentative...contact the National Weather
Service.

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 10 PM PDT WEDNESDAY...

.DISCUSSION...
Temperatures will remain very hot today early this week, with very
low RH values. Nighttime recoveries will be poor. Winds will be lighter
and more diurnally driven through Monday and early Tuesday,
then they will start to increase some late Tuesday and especially into
Wednesday as the ridge breaks down.  Winds remains breezy Thursday
into the end of the week, but not as strong as Wednesday. Temperatures
start to dip some Wednesday into Thursday as well. Mixing heights and
instability (lapse rates and haines) will increase through Tuesday,
before starting to decline some Wednesday. Some of the steepest lapse
rates are expected Tuesday, between 700-500 mb at near 8.5-9.0 C/km
and haines of 5, pushing to near 6.

.MONDAY...

Sky/weather.........Sunny. Areas of smoke and haze.
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 97.
Min humidity........11 percent.
Wind (20 ft)........Northwest 3 to 6 mph with gusts to 10 mph
                    in the early morning...becoming variable
                    2 to 4 mph toward 0900.
Mixing height.......Near the surface in the morning...
                    increasing to 7500 ft AGL in the afternoon.
Transport winds.....Northwest 5 to 9 mph.
Haines Index........5 Moderate.

TIME (PDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
Sky (%).........3   3   1   1   1   2   2   2   4   4   4   4
Weather type....HAZ HAZ HAZ HAZ HAZ HAZ HAZ SMK SMK SMK SMK SMK
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............74  76  78  85  89  92  95  95  96  97  96  95
RH..............26  26  23  21  18  15  14  13  12  11  11  14
20 FT wind dir..NW  W   W   W   SW  S   S   S   S   S   S   W
20 FT wind spd..4   4   3   3   2   2   3   3   3   4   4   3
20 FT wind gust.10  8   7   5   5   5   5   5   5   5   7   7
Mix hgt (kft)...0.5 1.0 2.0 3.0 5.5 7.0 7.0 7.5 7.5 7.5 7.5 7.0
Transp wind dir.NW  NW  N   N   N   N   NW  N   W   NW  W   W
Transp wind spd.9   8   7   6   5   6   6   6   6   6   5   7
Haines index....5   5   5   5   5   5   5   5   5   5   5   4

.MONDAY NIGHT...

Sky/weather.........Mostly clear. Areas of smoke and haze.
CWR.................0 percent.
LAL.................1.
Min temperature.....Around 74.
Max humidity........27 percent.
Wind (20 ft)........Light winds.
Mixing height.......6000 ft AGL decreasing to 1000 ft AGL.
Transport winds.....Northwest 6 to 9 mph.
Haines Index........4 Low.

.TUESDAY...

Sky/weather.........Sunny. Areas of smoke and haze.
CWR.................0 percent.
LAL.................1.
Max temperature.....Around 100.
Min humidity........9 percent.
Wind (20 ft)........Northwest winds 1 to 3 mph in the morning...becoming
                    upslope/upvalley 3 to 5 mph after 1100...increasing
                    to 4 to 7 mph with gusts to 17 mph after 1500.
Mixing height.......1000 ft AGL in the morning...increasing
                    to 9000 ft AGL in the afternoon.
Transport winds.....Northwest around 6 mph shifting to the
                    southwest 10 to 13 mph late in the morning.
Haines Index........4 Low.

$$
Forecaster...MSC
Requested by...Madelyn Kristell
Type of request...WILDFIRE
.TAG 2417566.0/OTX
.DELDT 07/07/24
.FormatterVersion 2.0.0
.EMAIL madelyn.kristell@noaa.gov