Alert archive / Montana / Flash Flood Watches in 2011

Flash Flood Watch 1, NWS Great Falls, MT

January 4, 2011

NWS Great Falls, MT issued this flash flood watch at Jan 4, 2011, 4:59 AM MST. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued: Jan 4, 2011, 4:59 AM MST (11:59 UTC)
Expired: Jan 5, 2011, 2:07 PM MST
In force: 33 hr
Issued by: NWS Great Falls, MT
Flood severity: None

What forecasters said that day

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

NWS Great Falls, MT wrote its last area forecast discussion before this flash flood watch went out at Jan 4, 4:20 AM MST, 39 minutes earlier.

Area forecast discussion, Jan 4, 4:20 AM MST, 39 minutes before

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Hazardous weather outlook, Jan 3, 7:12 PM MST, 9 hours 47 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREAT FALLS MT
712 PM MST MON JAN 3 2011

MTZ055-050215-
GALLATIN-
712 PM MST MON JAN 3 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
MONTANA.

.DAY ONE...TONIGHT

A FLOOD WARNING IS IN EFFECT UNTIL FURTHER NOTICE FOR THE
GALLATIN RIVER NEAR LOGAN DUE TO AN ICE JAM.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

AN ARCTIC COLD FRONT WITH ABUNDANT PACIFIC MOISTURE IS EXPECTED
TO BRING WIDESPREAD SNOW AND BITTERLY COLD TEMPERATURES TO THE
REGION LATER IN THE WEEK. TEMPERATURES WILL DROP 35 TO 45 DEGREES
BELOW AVERAGE.

.SPOTTER INFORMATION STATEMENT...

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

MTZ014-050215-
CENTRAL AND SOUTHERN LEWIS AND CLARK-
712 PM MST MON JAN 3 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
MONTANA.

.DAY ONE...TONIGHT

AN AIR STAGNATION ADVISORY IS IN EFFECT FOR THE HELENA VALLEY.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

AN AIR STAGNATION ADVISORY REMAINS IN EFFECT FOR THE HELENA VALLEY
UNTIL 6 PM MST TUESDAY.

AN ARCTIC COLD FRONT WITH ABUNDANT PACIFIC MOISTURE IS EXPECTED
TO BRING WIDESPREAD SNOW AND BITTERLY COLD TEMPERATURES TO THE
REGION LATER IN THE WEEK. TEMPERATURES WILL DROP 35 TO 45 DEGREES
BELOW AVERAGE.

.SPOTTER INFORMATION STATEMENT...

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

MTZ008>013-015-044>054-050215-
BEAVERHEAD-NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-HILL-
CASCADE-CHOUTEAU-MADISON-TOOLE-LIBERTY-EASTERN PONDERA-BLAINE-
SOUTHERN ROCKY MOUNTAIN FRONT-EASTERN TETON-JUDITH BASIN-FERGUS-
JEFFERSON-BROADWATER-MEAGHER-
712 PM MST MON JAN 3 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
MONTANA...NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA.

.DAY ONE...TONIGHT

THE PROBABILITY IS LOW FOR WIDESPREAD HAZARDOUS WEATHER.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

AN ARCTIC COLD FRONT WITH ABUNDANT PACIFIC MOISTURE IS EXPECTED
TO BRING WIDESPREAD SNOW AND BITTERLY COLD TEMPERATURES TO THE
REGION LATER IN THE WEEK. TEMPERATURES WILL DROP 35 TO 45 DEGREES
BELOW AVERAGE.

.SPOTTER INFORMATION STATEMENT...

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 4, 4:44 AM MST	Areal Flood Warning	TFX	Madison	3 days
Jan 4, 2:35 PM MST	High Wind Watch	TFX		13 hr

Nearby

Flash Flood Watches in Montana, 2011 Every flash flood watch in 2011

Sources

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