Alert archive / Montana / Winter Storm Warnings in 2012

Winter Storm Warning 9, NWS Great Falls, MT

March 21, 2012

NWS Great Falls, MT issued this winter storm warning at Mar 21, 2012, 8:02 AM MDT. It was in force for 20 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 21, 2012, 8:02 AM MDT (14:02 UTC)
Expired
Mar 22, 2012, 3:38 AM MDT
In force
20 hr
Issued by
NWS Great Falls, MT

The text

As transmitted, in the capitals the NWS used until 2016.

944 
WWUS45 KTFX 211402
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
802 AM MDT WED MAR 21 2012

MTZ009-048-212245-
/O.UPG.KTFX.WW.Y.0018.000000T0000Z-120321T1800Z/
/O.NEW.KTFX.WS.W.0009.120321T1402Z-120322T1200Z/
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...MARIAS PASS
802 AM MDT WED MAR 21 2012

...WINTER STORM WARNING IN EFFECT UNTIL 6 AM MDT THURSDAY FOR
ELEVATIONS ABOVE 5000 FEET...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER
STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET FOR HEAVY SNOW...
WHICH IS IN EFFECT UNTIL 6 AM MDT THURSDAY. THE WINTER WEATHER
ADVISORY IS NO LONGER IN EFFECT.

* TIMING: SNOW WILL CONTINUE ABOVE 5000 FEET. THE HEAVIEST SNOW
  TODAY SHOULD FALL OVER THE SOUTHERN ROCKY MOUNTAIN FRONT.
  TONIGHT THE HEAVIEST SNOW SHOULD SHIFT TO THE NORTHERN ROCKY
  MOUNTAIN FRONT AS SNOW GRADUALLY DIMINISHES OVER THE SOUTHERN
  ROCKY MOUNTAIN FRONT.

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 10 TO 18 INCHES
  ARE LIKELY IN THE MOUNTAINS AND 8 TO 10 INCHES AT PASS LEVEL.

* WINDS AND VISIBILITY: VISIBILITIES WILL BE BELOW ONE-HALF MILE.
  WINDS HAVE DIMINISHED BUT LOCALLY GUSTY WINDS WILL CAUSE BLOWING
  SNOW THAT WILL FURTHER CONTRIBUTE TO THE POOR VISIBILITIES.

* ELEVATIONS: ABOVE 5000 FEET.

* LOCATIONS AFFECTED INCLUDE: MARIAS PASS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND
WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1.

&&

$$
3 follow-up statements
572 
WWUS45 KTFX 212044
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
244 PM MDT WED MAR 21 2012

MTZ009-048-221200-
/O.CON.KTFX.WS.W.0009.000000T0000Z-120322T1200Z/
NORTHERN ROCKY MOUNTAIN FRONT-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...MARIAS PASS
244 PM MDT WED MAR 21 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT THURSDAY
FOR ELEVATIONS ABOVE 5000 FEET...

A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET REMAINS IN
EFFECT UNTIL 6 AM MDT THURSDAY. 

* TIMING: SNOW WILL CONTINUE ABOVE 5000 FEET. THE HEAVIEST SNOW 
  TODAY SHOULD FALL OVER THE SOUTHERN ROCKY MOUNTAIN FRONT. 
  TONIGHT THE HEAVIEST SNOW SHOULD SHIFT TO THE NORTHERN ROCKY 
  MOUNTAIN FRONT AS SNOW GRADUALLY DIMINISHES OVER THE SOUTHERN 
  ROCKY MOUNTAIN FRONT. 

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 10 TO 18 
  INCHES ARE LIKELY IN THE MOUNTAINS AND 8 TO 10 INCHES AT PASS 
  LEVEL. 

* WINDS AND VISIBILITY: VISIBILITIES WILL BE BELOW ONE-HALF 
  MILE.WINDS HAVE DIMINISHED BUT LOCALLY GUSTY WINDS WILL 
  CAUSE BLOWING SNOW THAT WILL FURTHER CONTRIBUTE TO THE POOR 
  VISIBILITIES.

* ELEVATIONS: FOR ELEVATIONS ABOVE 5000 FEET.

* LOCATIONS AFFECTED INCLUDE: MARIAS PASS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND
WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1.

&&

$$
885 
WWUS45 KTFX 220317
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
917 PM MDT WED MAR 21 2012

MTZ048-220430-
/O.CAN.KTFX.WS.W.0009.000000T0000Z-120322T1200Z/
SOUTHERN ROCKY MOUNTAIN FRONT-
917 PM MDT WED MAR 21 2012

...WINTER STORM WARNING IS CANCELED...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELED THE
WINTER STORM WARNING.

SNOW SHOWERS WILL CONTINUE FOR SEVERAL HOURS BUT HEAVY SNOW IS NO
LONGER EXPECTED.

$$

MTZ009-221200-
/O.CON.KTFX.WS.W.0009.000000T0000Z-120322T1200Z/
NORTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...MARIAS PASS
917 PM MDT WED MAR 21 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT THURSDAY
FOR ELEVATIONS ABOVE 5000 FEET...

A WINTER STORM WARNING FOR ELEVATIONS ABOVE 5000 FEET REMAINS IN
EFFECT UNTIL 6 AM MDT THURSDAY. 

* TIMING: SNOW WILL CONTINUE ABOVE 5000 FEET. THE SNOW WILL
  GRADUALLY TAPER OFF OVERNIGHT.

* SNOW ACCUMULATIONS: TOTAL SNOW ACCUMULATIONS OF 10 TO 18 
  INCHES ARE LIKELY IN THE MOUNTAINS AND 8 TO 10 INCHES AT 
  PASS LEVEL.

* WINDS AND VISIBILITY: VISIBILITIES WILL BE BELOW ONE-HALF MILE
  AT TIMES. WINDS HAVE DIMINISHED BUT AREAS OF BLOWING SNOW WILL
  FURTHER CONTRIBUTE TO THE POOR VISIBILITIES.

* ELEVATIONS: FOR ELEVATIONS ABOVE 5000 FEET.

* LOCATIONS AFFECTED INCLUDE: MARIAS PASS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST...KEEP AN EXTRA FLASHLIGHT...FOOD...AND
WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

FOR SPECIFIC ROAD AND TRAVEL CONDITIONS IN MONTANA...DIAL 5 1 1.

&&

$$
691 
WWUS45 KTFX 220938
WSWTFX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
338 AM MDT THU MAR 22 2012


MTZ009-221045-
/O.CAN.KTFX.WS.W.0009.000000T0000Z-120322T1200Z/
NORTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS...MARIAS PASS
338 AM MDT THU MAR 22 2012

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELLED THE
WINTER STORM WARNING. 

LIGHT SNOW SHOWERS ARE POSSIBLE THROUGH THE MORNING BUT HEAVY SNOW
IS NO LONGER EXPECTED.

$$

Nearby

Winter Storm Warnings in Montana, 2012Every winter storm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.