Alert archive / Montana / River Flood Warnings in 2008

River Flood Warning 4, NWS Great Falls, MT

May 23, 2008Beaverhead County, Madison County, Montana

NWS Great Falls, MT issued this river flood warning at May 23, 2008, 10:46 AM MDT for Beaverhead County, Madison County, Montana. It took effect at May 29, 2008, 2:55 AM MDT. It was in force for .

The area

The counties it named.

The facts

Issued: May 23, 2008, 10:46 AM MDT (16:46 UTC)
In effect from: May 29, 2008, 2:55 AM MDT
Expired: May 26, 2008, 9:22 PM MDT
In force
Issued by: NWS Great Falls, MT
Flood severity: Minor

Counties Beaverhead County, MT, Madison County, MT

The radar

The Pocatello radar (KSFX), 236 km from the middle of the area, began a volume at 16:48 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.

The river

Written for the forecast point Big Hole River near Melrose (MLRM8). The gauge peaked at 5.94 ft at May 22, 2008, 11:00 AM MDT.

Action stage: 5 ft
Minor stage: 6 ft
Moderate stage: 7.5 ft
Major stage: 8 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06025500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning 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 river flood warning went out at May 23, 10:06 AM MDT, 40 minutes earlier.

Area forecast discussion, May 23, 10:06 AM MDT, 40 minutes before

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Hazardous weather outlook, May 23, 3:56 AM MDT, 6 hours 50 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREAT FALLS MT
356 AM MDT FRI MAY 23 2008

MTZ008>010-012>015-044>046-048>055-241115-
BEAVERHEAD-NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER-CASCADE-
CHOUTEAU-CENTRAL AND SOUTHERN LEWIS AND CLARK-MADISON-TOOLE-
LIBERTY-EASTERN PONDERA-SOUTHERN ROCKY MOUNTAIN FRONT-
EASTERN TETON-JUDITH BASIN-FERGUS-JEFFERSON-BROADWATER-MEAGHER-
GALLATIN-
356 AM MDT FRI MAY 23 2008

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

.DAY ONE...TODAY AND TONIGHT

MINOR FLOODING IS FORECASTED FOR PORTIONS OF
BEAVERHEAD...MADISON...AND GALLATIN COUNTIES.

A FLOOD WATCH REMAINS IN EFFECT FOR MUCH OF NORTH CENTRAL AND
SOUTHWEST MONTANA. CONTINUED PRECIPITATION MAY CAUSE SOME RIVERS TO
EXCEED FLOOD STAGE.

A HEAVY SNOW WARNING REMAINS IN EFFECT UNTIL NOON TODAY ABOVE
7000 FEET IN BEAVERHEAD...CASCADE...JUDITH
BASIN...MADISON...MEAGHER... AND GALLATIN COUNTIES.

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT TODAY
FOR THE NORTHERN ROCKIES.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON.

MINOR FLOODING IS FORECASTED FOR PORTIONS OF
BEAVERHEAD...MADISON...AND GALLATIN COUNTIES.

.SPOTTER INFORMATION STATEMENT...

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

MTZ011-047-241115-
HILL-BLAINE-
356 AM MDT FRI MAY 23 2008

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

.DAY ONE...TODAY AND TONIGHT

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.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
May 23, 4:32 AM MDT	Areal Flood Advisory	TFX	Glacier	10 hr
May 23, 8:27 AM MDT	Areal Flood Warning	TFX	Chouteau, Fergus, Judith Basin	27 hr
May 23, 2:24 PM MDT	Areal Flood Warning	TFX	Chouteau, Fergus, Glacier, Judith Basin, Lewis and Clark, Pondera and 1 more	21 hr

Nearby

River Flood Warnings in Montana, 2008 Every river flood warning in 2008

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; the gauge from the NWS water service and the USGS.