Alert Administrative Message
Issued by NWS Great Falls, MT

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NOUS75 KTFX 101504
ADMTFX

ADMINISTRATIVE MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
828 AM MDT WED SEP 10 2014

TO ALL WFOS SURROUNDING WFO TFX
FM WFO TFX

WFO TFX HAS ISSUED A HEADS-UP EMAIL TO OUR EMERGENCY MANAGEMENT
COMMUNITY AND OTHER PARTNERS.

EMAIL TOPIC...PERIODS OF RAIN AND SNOW THROUGH THURSDAY MORNING

...REASONING IN EMAIL...


SYNOPSIS:
ANOTHER CANADIAN COLD FRONT WILL MOVE SOUTHWARD THROUGH NORTH
CENTRAL MONTANA TODAY. FOR AREAS NORTH OF HELENA...EXPECT RAIN/SNOW
THIS MORNING TO GRADUALLY CHANGE OVER TO MOSTLY SNOW AT ALL
ELEVATIONS BY LATE THIS AFTERNOON/EARLY THIS EVENING...WITH MOSTLY
SNOW FALLING DURING THE OVERNIGHT HOURS. A MIX OF RAIN/SNOW IS
LIKELY TODAY THROUGH THURSDAY FOR AREAS SOUTH OF HELENA.

TIMING:
THE HEAVIEST PERIOD OF SNOWFALL IS LIKELY TO OCCUR FROM 3 PM TODAY
UNTIL 3 AM THURSDAY MORNING. ICY PATCHES COULD DEVELOP ON WET
ROADWAYS DURING THE OVERNIGHT HOURS...WITH BRIDGES DEVELOPING ICY
PATCHES MUCH EARLIER THAN ROADWAYS.

SNOW ACCUMULATIONS:
- ROCKY MOUNTAIN FRONT AREA: 4 TO 12 INCHES.
- NORTHERN PLAINS/CENTRAL MOUNTAINS (NORTH OF HELENA): 1 TO 4 INCHES
  PLAINS AND 5 TO 12 INCHES IN THE MOUNTAINS.
- SOUTHWEST MONTANA (SOUTH OF HELENA): UP TO 2 INCHES IN THE VALLEYS
  AND 3 TO 7 INCHES IN THE MOUNTAINS.

IMPACTS:
- ICY PATCHES OF ROADWAY DEVELOPING, ESPECIALLY ON BRIDGES.
- TREE DAMAGE POSSIBLE ON LEAFED OUT TREES IN PLACES WHERE
  SNOWFALL EXCEEDS 2 INCHES.
- SOME POWER OUTAGES POSSIBLE DUE TO A HEAVY WET SNOW.

CLICK THE LINK BELOW TO SEE A MAP OF EXPECTED SNOWFALL ACROSS THE REGION.

IF YOU HAVE QUESTIONS OR CONCERNS...DO NOT HESITATE TO CALL OR
CHAT US.



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