Alert Administrative Message
Issued by NWS Great Falls, MT

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000
NOUS75 KTFX 261908
ADMTFX

ADMINISTRATIVE MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
1054 AM MST WED NOV 26 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...UPDATE ON COMING WEEKEND STORM

...REASONING IN EMAIL...
SYNOPSIS
A LOW PRESSURE SYSTEM OVER NORTHERN BRITISH COLUMBIA ON
THANKSGIVING WILL MOVE SOUTHEAST AND INTO MONTANA SATURDAY NIGHT.
THE ASSOCIATED COLD FRONT WILL REACH THE CANADIAN BORDER FRIDAY
MORNING BEFORE MOVING INTO CENTRAL MONTANA FRIDAY AFTERNOON AND
SOUTHWEST MONTANA FRIDAY EVENING. TEMPERATURES WILL TURN SHARPLY
COLDER BEHIND THE COLD FRONT.

AREAS IMPACTED
SOUTHWEST MONTANA TO THE CANADIAN BORDER.

TIMING
FRIDAY THROUGH SATURDAY.

WEATHER
TEMPERATURES-
HIGHS SATURDAY AND SUNDAY SHOULD BE 0 TO 10 ABOVE ZERO OVER NORTH
CENTRAL MONTANA. OVER SOUTHWEST MONTANA HIGHS WILL BE IN THE 30S
SATURDAY AND 10 TO 25 ABOVE ZERO SUNDAY. SUNDAY MORNING SHOULD BE
THE COLDEST WITH LOWS 10 BELOW TO 20 BELOW ZERO IN THE NORTH AND
0 TO 15 ABOVE IN THE SOUTH. IN A WORST CASE SCENARIO, TEMPERATURES
COULD BE UP TO 10 DEGREES COLDER.

SNOW ACCUMULATION-
MOST LIKELY: 1 TO 2 FEET OVER THE ROCKY
MOUNTAIN FRONT WITH 3 TO 6 INCHES FOR LOWER ELEVATIONS. CENTRAL
MONTANA MOUNTAINS MAY GET 6 TO 12 INCHES.
WORST CASE: 2 TO 3 FEET OVER THE ROCKY MOUNTAIN FRONT WITH 4 TO
8 INCHES FOR LOWER ELEVATIONS. CENTRAL MONTANA MOUNTAINS MAY GET
1 TO 2 FEET.

WINDS-
MOST LIKELY: NORTH WINDS 10 TO 20 MPH BEHIND THE FRONT
WORST CASE: NORTH WINDS 20 TO 30 MPH BEHIND THE FRONT. POSSIBLY
AS HIGH AS 30 TO 40 MPH NEAR THE ROCKY MOUNTAIN FRONT.

WIND CHILL-
WIND CHILL 20 BELOW TO 40 BELOW ZERO OVER THE PLAINS SATURDAY
NIGHT.

IMPACTS
SNOW-COVERED AND SLICK ROADS AND POOR VISIBILITY
WITH TRAVEL BECOMING DIFFICULT. RISK OF HYPOTHERMIA FOR UNPROTECTED
INDIVIDUALS. IMPACTED OUTDOOR ACTIVITIES.

FORECASTER CONFIDENCE
HIGH - SNOW AND COLD TEMPERATURES
MODERATE - SNOW ACCUMULATION AND WINDS
LOW TO MODERATE - TIMING

FURTHER UPDATES WILL BE ISSUED AS NECESSARY.

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



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