Alert archive / Montana / Snow Advisories in 2007

Snow Advisory 11, NWS Missoula, MT

February 20, 20075 counties in Montana; Lemhi County, Idaho

NWS Missoula, MT issued this snow advisory at Feb 20, 2007, 3:52 AM MST for 5 counties in Montana; Lemhi County, Idaho. It took effect at Feb 20, 2007, 5:00 PM MST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 20, 2007, 3:52 AM MST (10:52 UTC)
In effect from
Feb 20, 2007, 5:00 PM MST
Expired
Feb 20, 2007, 11:03 AM MST
In force
Issued by
NWS Missoula, MT

Counties Lemhi County, ID, Granite County, MT, Lake County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT

The radar

The Missoula radar (KMSX), 64 km from the middle of the area, began a volume at 10:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this snow advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Missoula, MT wrote its last area forecast discussion before this snow advisory went out at Feb 19, 3:34 PM MST, 12 hours 18 minutes earlier.

Area forecast discussion, Feb 19, 3:34 PM MST, 12 hours 18 minutes before
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Hazardous weather outlook, Feb 19, 2:30 PM MST, 13 hours 22 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MISSOULA MT
230 PM MST MON FEB 19 2007

IDZ009-010-200930-
WESTERN LEMHI COUNTY-EASTERN LEMHI COUNTY-
230 PM MST MON FEB 19 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
IDAHO.

.DAY ONE...TONIGHT

SCATTERED VALLEY RAIN AND MOUNTAIN SNOW SHOWERS ARE EXPECTED TODAY
AND TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

TUESDAY NIGHT AND WEDNESDAY...MODERATE SNOWFALL AMOUNTS ARE
POSSIBLE OVER HIGHER TERRAIN AS A COLD FRONT STALLS OVER THE
AREA. TRAVEL FROM NORTH FORK TO OVER LOST TRAIL PASS MAY BE
IMPACTED.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

IDZ007-008-200930-
OROFINO/GRANGEVILLE REGION-LOWER HELLS CANYON/SALMON RIVER REGION-
130 PM PST MON FEB 19 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
IDAHO.

.DAY ONE...TONIGHT

SCATTERED VALLEY RAIN AND MOUNTAIN SNOW SHOWERS ARE EXPECTED TO DEVELOP
LATER THIS EVENING AND TONIGHT AS WEATHER SYSTEM APPROACHES THE AREA.
GUSTY SOUTH WINDS ARE EXPECTED TO DEVELOP DURING THE EVENING SOUTH
OF HIGHWAY 12. A WIND ADVISORY HAS BEEN ISSUED FOR TONIGHT INTO
TUESDAY...PLEASE SEE GTFNPWMSO FOR FURTHER DETAILS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

GUSTY SOUTH WINDS ARE EXPECTED TO DIMINISH BY MID DAY TUESDAY. TUESDAY
NIGHT THROUGH WEDNESDAY NIGHT...MODERATE SNOWFALL AMOUNTS ARE
POSSIBLE OVER HIGHER TERRAIN ABOVE 3000 FEET...AS A COLD FRONT
STALLS OVER THE AREA. TRAVEL FROM GRANGEVILLE OVER THE WHITE BIRD
GRADE MAY BE ESPECIALLY IMPACTED BY THIS EVENT.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 20, 3:52 AM MSTSnow and Blowing Snow AdvisoryMSODeer Lodge, Granite, Lake, Missoula, Powell, Ravalli and 1 more24 hr

Nearby

Snow Advisories in Montana, 2007Snow Advisories in Idaho, 2007Every snow advisory in 2007

Sources

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