Washington County Fire Weather Forecast

Washington County-
Including Akron, Cope, Last Chance, and Otis
252 PM MDT Wed Sep 11 2019

.TONIGHT…
Sky/weather………Partly cloudy(40-50%). Chance of thunderstorms
until 2100, then chance of rain showers until
2300. Slight chance of thunderstorms after 2100
until 2400.
Min Temperature…..49-53.
24 hr trend……4-7 degrees cooler.
Max Humidity……..79-83%.
24 hr trend……15-20% drier.
20-foot winds…….North winds 11-17 mph with gusts to 30 mph.
Haines Index……..3 or very low.
LAL……………..4 until 2400, then 1.
CWR……………..10 percent until 2400, then 0 percent.
15K FT MSL winds….Southwest 30-40 mph.
Mixing height…….8000-9000 ft AGL until 2000, then 1500-2500 ft
AGL until 2400, then Below 1000 FT AGL until
0300, then 1000 ft AGL until 0400, then Below
1000 FT AGL.
Transport winds…..South around 15 mph until 1900, then west until
2000, then northwest.
Smoke dispersal…..Fair until 2100, then poor.

.THURSDAY…
Sky/weather………Mostly sunny.
Max Temperature…..74-78.
24 hr trend……10-15 degrees cooler.
Min Humidity……..21-25%.
24 hr trend……10-15% drier.
20-foot winds…….Northwest winds 11-20 mph with gusts to 30 mph.
Haines Index……..2 or very low.
LAL……………..1.
CWR……………..0 percent.
15K FT MSL winds….West 30-40 mph.
Mixing height…….Below 1000 FT AGL until 0700, then 8000-9000 ft
AGL.
Transport winds…..Northwest 20-25 mph until 1700, then around 15
mph.
Smoke dispersal…..Poor until 1000. Very good after 1200.

.THURSDAY NIGHT…
Sky/weather………Mostly clear.
Min Temperature…..47-51.
24 hr trend……Little change.
Max Humidity……..65-73%.
24 hr trend……7-10% drier.
20-foot winds…….North winds 4-8 mph with gusts to 20 mph
shifting to the south after midnight.
Haines Index……..2 or very low.
LAL……………..1.
CWR……………..0 percent.
15K FT MSL winds….West 35-45 mph.
Mixing height…….5500-6500 ft AGL until 2100. Below 1000 FT AGL
after 2400.
Transport winds…..North 10-15 mph until 2300, then light until
0300, then south around 10 mph.
Smoke dispersal…..Good until 2000, then poor.

.FRIDAY…
Sky/weather………Mostly sunny.
Max Temperature…..79-83.
24 hr trend……4-7 degrees warmer.
Min Humidity……..25-33%.
24 hr trend……7-10% wetter.
20-foot winds…….South winds 8-14 mph with gusts to 25 mph.
Haines Index……..2 or very low.
LAL……………..1.
CWR……………..0 percent.
15K FT MSL winds….West 25-35 mph.
Mixing height…….Below 1000 FT AGL until 0800, then 7000-8000 ft
AGL.
Transport winds…..South 10-15 mph until 1100, then southwest
15-20 mph until 1700, then around 10 mph.
Smoke dispersal…..Poor until 1100, then good.

.FRIDAY NIGHT…Clear. Lows in the lower 50s. South winds
6-12 mph.
.SATURDAY…Clear. Highs in the mid 80s. Northwest winds 5-9 mph.
.SUNDAY…Clear. Lows in the mid 50s. Highs around 90. South
winds 6-12 mph.
.MONDAY…Mostly clear. Lows in the upper 50s. Highs around 90.
South winds 8-14 mph.

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