665
FNUS75 KREV 121342
FWSREV

Spot Forecast for Montreal RX...USFS
National Weather Service Reno NV
542 AM PST Wed Feb 12 2025

Forecast is based on ignition time of 0600 PST on February 12.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* Dry and cold weather prevails through tonight with light
  and variable winds.

* A potent winter storm will bring periods of heavy snow and gusty
  winds late tonight through Friday.

* Strongest winds and heaviest snowfall will occur Thursday morning
  with snow amounts around 2 feet through Friday.

.TODAY...

Sky/Weather.........Sunny then becoming partly cloudy.
Temperature.........7-10 at ignition...Max 32-35.
RH..................75-80% at ignition...Min 30-35%.
20-Foot Winds.......Winds west at 2-6 mph at ignition...otherwise
                    south 4-8 mph.
Chc Wetting Rain....0%.
Mixing Height.......200-500 ft agl then 800-1000 ft agl in the
                    afternoon.
Transport Winds.....Light winds.
Ventilation.........Poor.

TIME (PST)      6 AM   8 AM   10 AM  NOON   2 PM
Sky (%).........20     35     20     20     35
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0
Temp............9      11     24     29     33
RH..............73     67     40     40     36
20 ft wind......W 2    SW 2   SW 3   S 3    S 4
20 ft wind gust.5      5      5      5      8
Mx ht msl (kft).0.1    0.1    0.6    0.6    1.0
Transport wind..SW 5   S 5    E 5    E 5    S 5
Vrate kt-ft/1K..0      0      3      3      4
Ventrate Cat....POOR   POOR   POOR   POOR   POOR

.TONIGHT...

Sky/Weather.........Mostly cloudy. Heavy snow expected after 11 PM.
Temperature.........Min 16-19.
RH..................Max 95%.
20-Foot Winds.......Southwest 8-12 mph with gusts of 20-25 mph.
Chc Wetting Rain....0% increasing to 70% overnight.
Mixing Height.......600 ft agl early in the evening.
Transport Winds.....Light winds becoming south around 20 mph.
Ventilation.........Poor to good.

TIME (PST)      4 PM   6 PM   8 PM   10 PM  MIDNGT 2 AM
Sky (%).........53     53     74     91     91     95
Weather cov.....                     CHANCE LIKELY DEFNTE
Weather type....NONE   NONE   NONE   SNOW   SNOW   SNOW
Tstm cov........
CWR.............0      0      0      70     70     70
Temp............31     26     23     22     20     23
RH..............36     52     56     60     70     83
20 ft wind......SW 2   SW 2   S 6    SW 8   SW 8   SW 12
20 ft wind gust.5      7      10     15     15     20
Mx ht msl (kft).0.5    0.5    0.1    0.1    0.1    0.1
Transport wind..SW 5   SW 5   S 10   S 15   S 15   S 20
Vrate kt-ft/1K..3      3      0      0      0      0
Ventrate Cat....POOR   POOR   POOR   FAIR   GOOD   GOOD

.THURSDAY...

Sky/Weather.........Cloudy. Snow.
Temperature.........Max 31-34.
RH..................Min 70-75%.
20-Foot Winds.......Southwest winds 12-17 mph with gusts of
                    30 mph in the morning, then west 15-20 mph
                    with gusts to 35 mph in the afternoon.
Chc Wetting Rain....100%.
Mixing Height.......200-500 ft agl then 1000-1500 ft agl in the
                    afternoon.
Transport Winds.....Southwest 20-25 mph increasing to around 40
                    mph.
Ventilation.........Good.

TIME (PST)      4 AM   6 AM   8 AM   10 AM  NOON   2 PM
Sky (%).........98     98     100    100    100    100
Weather cov.....DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE
Weather type....SNOW   SNOW   SNOW   SNOW   SNOW   SNOW
Tstm cov........
CWR.............100    100    100    100    100    100
Temp............26     26     27     32     32     31
RH..............92     94     93     90     84     80
20 ft wind......S 17   S 17   S 20   SW 22  SW 25  W 25
20 ft wind gust.20     25     25     30     35     35
Mx ht msl (kft).0.1    0.1    0.1    0.9    0.9    1.5
Transport wind..SW 20  SW 20  SW 25  SW 30  SW 30  SW 40
Vrate kt-ft/1K..0      0      3      22     22     53
Ventrate Cat....GOOD   GOOD   GOOD   GOOD   GOOD   GOOD

$$
Forecaster...Collins/Salas
Requested by...David Deleon
Type of request...PRESCRIBED
.TAG 2502534.2/REV
.DELDT 02/12/25
.FormatterVersion 2.0.0
.EMAIL david.deleon@usda.gov