645
FNUS75 KREV 230438
FWSREV

Spot Forecast for Alpine County Fuels Mitigation Program...Alpine county
National Weather Service Reno NV
938 PM PDT Wed May 22 2024

Forecast is based on ignition time of 0700 PDT on May 23.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* Light and variable winds are anticipated in the morning on
  Thursday underneath sunny skies before winds and cloud cover
  increase a bit by the afternoon hours.

* With cloud cover increasing in the area, there is slight chance
  (~10%) for an isolated light shower or two within the region
  during the late afternoon and evening hours on Thursday.

* Forecast models currently show chances (10-20%) for afternoon
  and evening showers and thunderstorms beginning on Friday and
  Memorial Day while they have backed off on precipitation chances
  over the holiday weekend.

.THURSDAY...

Sky/Weather.........Sunny then becoming partly cloudy.
Temperature.........36-38 at ignition...Max 63-65.
RH..................64-66% at ignition...Min 23-25%.
20-Foot Winds.......Winds variable at 2 mph at
                    ignition...otherwise Upslope 3-7 mph.
LAL.................1.
Chc Wetting Rain....0%.
Mixing Height.......6500-7500 ft agl.
Transport Winds.....Light winds becoming west around 10 mph in the
                    afternoon.
Ventilation.........Marginal to good.
Haines Index........2 at ignition...max 2.

.THURSDAY NIGHT...

Sky/Weather.........Mostly cloudy then becoming partly cloudy.
Temperature.........Min 40-42.
RH..................Max 71-73%.
20-Foot Winds.......Downslope 2-6 mph.
LAL.................1.
Chc Wetting Rain....5%.
Mixing Height.......1600-2600 ft agl.
Transport Winds.....West around 10 mph in the evening, then
                    becoming southwest around 10 mph after 3 am.
Ventilation.........Good to poor.
Haines Index........2.

.FRIDAY...

Sky/Weather.........Mostly cloudy then becoming partly cloudy.
Temperature.........Max 61-63.
RH..................Min 28-30%.
20-Foot Winds.......Upslope 3-7 mph becoming southwest 9-14 mph
                    with gusts to around 25 mph.
LAL.................1.
Chc Wetting Rain....5%.
Mixing Height.......7400-8400 ft agl.
Transport Winds.....Southwest 10-15 mph increasing to 20-25 mph in
                    the afternoon.
Ventilation.........Marginal to good increasing to excellent in the
                    afternoon.
Haines Index........3.

$$
Forecaster...Chyba
Requested by...Jim Lamb
Type of request...PRESCRIBED
.TAG 2414972.0/REV
.DELDT 05/23/24
.FormatterVersion 2.0.0
.EMAIL jlamb@alpinecountyca.gov