Spot Forecast
Issued by NWS Grand Junction, CO

Home |  Current Version |  Previous Version |  Graphics & Text |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
725
FNUS75 KGJT 131211
FWSGJT

Spot Forecast for SPEIRS...USFS
National Weather Service Grand Junction CO
611 AM MDT Tue Aug 13 2024

Forecast is based on forecast start time of 0700 MDT on August 13.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Scattered to numerous showers and thunderstorms will
track near or over the fire this afternoon and diminishing through
the evening. Frequent lightning, moderate to heavy rain, gusty
outflow winds to 40 mph and small hail are the primary threats from
these storms. Tomorrow will see a slight downturn in storm coverage
with the remainder of the week being significantly drier.


.TODAY...

Sky/weather.........Mostly cloudy (75-85 percent). Scattered
                    showers and thunderstorms in the morning, then
                    numerous showers and thunderstorms in the
                    afternoon.
CWR.................60 percent.
Max temperature.....70-75.
Min humidity........44-49 percent.
Wind (20 ft)........South winds 10 mph shifting to the southwest 15
                    mph in the afternoon. Gusty and erratic winds
                    expected near thunderstorms.
Haines Index........3 or very low.
LAL.................2 until 0900, then 4 until 1200, then 5 until
                    1700, then 4.
Mixing height.......3500 ft AGL.
Transport winds.....Southwest 16 mph.
Clearing Index......690.

.TONIGHT...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    partly cloudy (45-55 percent). Scattered
                    showers and thunderstorms in the evening, then
                    isolated showers and thunderstorms overnight.
CWR.................30 percent.
Min temperature.....46-51.
Max humidity........88-93 percent.
Wind (20 ft)........South winds 10 mph. Gusty and erratic winds
                    expected near thunderstorms.
Haines Index........4 or low.
LAL.................4 until 2200, then 3.
Mixing height.......2200 ft AGL.
Transport winds.....Southwest 12 mph.
Clearing Index......360 decreasing to 110 overnight.

.WEDNESDAY...

Sky/weather.........Partly sunny (50-60 percent) then becoming
                    cloudy (90-100 percent). Scattered rain showers
                    and isolated thunderstorms in the morning, then
                    rain showers and scattered thunderstorms in the
                    afternoon.
CWR.................70 percent.
Max temperature.....70-75.
Min humidity........37-42 percent.
Wind (20 ft)........Southwest winds 10 mph. Gusty and erratic winds
                    expected near thunderstorms.
Haines Index........4 or low.
LAL.................1 until 0900, then 3 until 1200, then 4.
Mixing height.......4900 ft AGL increasing to 7100 ft AGL in the
                    afternoon.
Transport winds.....Southwest 10 mph shifting to the west 13 mph in
                    the afternoon.
Clearing Index......440 increasing to 1050 in the afternoon.

$$
Forecaster...David Byers
Requested by...Tom Wilson
Type of request...WILDFIRE
.TAG 2419856.6/GJT
.DELDT 08/13/24
.FormatterVersion 2.0.0
.EMAIL utubc@firenet.gov