932
FNUS75 KREV 051036
FWSREV

Spot Forecast for Hannahs Piles Burn Unit 5...NDF
National Weather Service Reno NV
236 AM PST Fri Dec 5 2025

Forecast is based on ignition time of 0700 PST on December 05.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* Increasing northerly winds today across exposed ridgelines of
  the burn site. Winds remain elevated overnight into Saturday,
  turning WNW.

* Warming trend is on tap for the weekend, with further warming
  into next week and overnight valley inversions forming.

* The storm track is remaining north of the burn site with less
  than a 5% chance for measurable rain. Chances begin to increase
  around December 16 with a 60% chance for rain/snow to return.

.REST OF TODAY...

Sky/Weather.........Sunny.
Temperature.........34 at ignition...Max 43.
RH..................78% at ignition...Min 50%.
20-Foot Winds.......North winds 10-15 mph with gusts up to 25 mph.
Chc Wetting Rain....0%.
Chance of thunder...0%.
Mixing Height.......200-500 ft agl in the morning increasing to 1500 ft agl
                    in the afternoon..
Transport Winds.....North around 15 mph shifting to the west late
                    in the afternoon.
Ventilation.........Poor to fair.

TIME (PST)      7 AM      10 AM     1 PM
Sky (%).........18        15        9
Weather cov.....
Weather type....NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0
Chc of thdr (%).0         0         0
Temp............34        38        42
RH..............78        78        73
20 FT wind......N 16G25   NE 15G20  N 12G20
Mx ht msl (kft).0.1       1.0       1.5
Transport wind..N 15      NE 15     W 10
Vrate kt-ft/1K..7         15        20
Ventrate Cat....POOR      FAIR      FAIR

.TONIGHT...

Sky/Weather.........Partly cloudy then becoming clear.
Temperature.........Min 35.
RH..................Max 76%.
20-Foot Winds.......West winds 18-23 mph decreasing to 13-23 mph.
                    Gusts to 35 mph overnight.
Chc Wetting Rain....0%.
Chance of thunder...0%.
Mixing Height.......200-500 ft agl.
Transport Winds.....West 15-20 mph increasing to around 25 mph
                    overnight.
Ventilation.........Poor.

TIME (PST)      4 PM      7 PM      10 PM     1 AM
Sky (%).........27        37        25        13
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
Chc of thdr (%).0         0         0         0
Temp............41        39        40        39
RH..............76        73        69        73
20 FT wind......W 16G25   W 18G25   W 23G35   W 23G35
Mx ht msl (kft).1.5       1.0       0.1       0.1
Transport wind..W 15      W 20      W 25      W 25
Vrate kt-ft/1K..30         20         0         0
Ventrate Cat....FAIR      FAIR      POOR      POOR

.SATURDAY...

Sky/Weather.........Sunny then becoming partly cloudy.
Temperature.........Max 45.
RH..................Min 45%.
20-Foot Winds.......West winds 15-20 mph with gusts to around 35
                    mph.
Chc Wetting Rain....0%.
Chance of thunder...0%.
Mixing Height.......200-500 ft agl in the morning increasing to 1500
                    to 2000 ft agl in the afternoon.
Transport Winds.....West 20-25 mph.
Ventilation.........Poor to good.

TIME (PST)      4 AM      7 AM      10 AM     1 PM
Sky (%).........19        38        33        27
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
Chc of thdr (%).0         0         0         0
Temp............39        37        41        44
RH..............72        73        76        71
20 FT wind......W 22G35   W 23G35   W 20G30   W 21G30
Mx ht msl (kft).0.1       0.1       1.5       2.0
Transport wind..W 20      W 25      W 20      W 20
Vrate kt-ft/1K..0         0         30        40
Ventrate Cat....POOR      POOR      FAIR     GOOD

$$
Forecaster...Johnson
Requested by...Daniel Herrera
Type of request...PRESCRIBED
.TAG 2527024.1/REV
.DELDT 12/05/25
.FormatterVersion 2.0.0
.EMAIL dherrera@forestry.nv.gov