Alert archive / Montana / River Flood Warnings in 2015

River Flood Warning 4, NWS Billings, MT

June 1, 2015Sweet Grass County, Montana

NWS Billings, MT issued this river flood warning at Jun 1, 2015, 11:12 AM MDT for Sweet Grass County, Montana. It took effect at Jun 1, 2015, 9:00 PM MDT. It was in force for 5 days.

The area

The counties it named.

The facts

Issued
Jun 1, 2015, 11:12 AM MDT (17:12 UTC)
In effect from
Jun 1, 2015, 9:00 PM MDT
Expired
Jun 6, 2015, 6:00 PM MDT
In force
5 days
Issued by
NWS Billings, MT
Area
Storm-based polygon
Flood severity
Minor

County Sweet Grass County, MT

The radar

The Billings radar (KBLX), 103 km from the middle of the area, began a volume at 17:18 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 Boulder River at Big Timber (BTMM8). The gauge peaked at 7.16 ft at Jun 2, 2015, 10:00 AM MDT.

minor5678906/0106/0206/0306/0406/0506/0606/0706/08
Minor stage
8 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06200000, 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 Billings, MT wrote its last area forecast discussion before this river flood warning went out at Jun 1, 9:38 AM MDT, 1 hour 34 minutes earlier.

Area forecast discussion, Jun 1, 9:38 AM MDT, 1 hour 34 minutes before
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Hazardous weather outlook, Jun 1, 3:34 AM MDT, 7 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
334 AM MDT MON JUN 1 2015

MTZ028>042-056>058-063>068-WYZ098-099-020945-
SOUTHERN WHEATLAND-MUSSELSHELL-TREASURE-NORTHERN ROSEBUD-CUSTER-
FALLON-NORTHERN STILLWATER-YELLOWSTONE-POWDER RIVER-CARTER-
SOUTHERN BIG HORN-EASTERN CARBON-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-RED LODGE FOOTHILLS-
NORTHERN BIG HORN-SOUTHERN ROSEBUD-JUDITH GAP-PARADISE VALLEY-
LIVINGSTON AREA-BEARTOOTH FOOTHILLS-ABSAROKA/BEARTOOTH MOUNTAINS-
CRAZY MOUNTAINS-NORTHEAST BIGHORN MOUNTAINS-SHERIDAN FOOTHILLS-
334 AM MDT MON JUN 1 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
MONTANA...SOUTH CENTRAL MONTANA...SOUTHEAST MONTANA AND NORTH
CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED THIS AFTERNOON
AND EVENING...AND SOME OF THEM WILL BE SEVERE. THE PRIMARY HAZARDS
WILL BE LARGE HAIL THE SIZE OF QUARTERS TO GOLF BALLS...DAMAGING
WINDS IN EXCESS OF 60 MPH AND VERY HEAVY RAIN. THE GREATEST RISK
OF SEVERE THUNDERSTORMS WILL BE BETWEEN 3 PM AND MIDNIGHT MDT...
BUT THE RISK COULD LINGER PAST MIDNIGHT IN SOUTHEAST MONTANA.
MONITOR THE WEATHER CLOSELY...AND BE READY TO SEEK SHELTER INDOORS
IF STORMS APPROACH OR WARNINGS ARE ISSUED FOR YOUR LOCATION.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A CHANCE OF STRONG THUNDERSTORMS TUESDAY AFTERNOON AND
EVENING...MAINLY FROM SHERIDAN EAST TO BROADUS AND EKALAKA.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS WILL LIKELY BE NEEDED THIS AFTERNOON AND EVENING.

CJS

The office that day

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

IssuedProductOfficeCountiesLasted
May 31, 7:25 PM MDTSpecial Weather StatementBYZPark50 min
May 31, 8:00 PM MDTSpecial Weather StatementBYZBig Horn60 min
May 31, 9:10 PM MDTSpecial Weather StatementBYZStillwater65 min
May 31, 9:37 PM MDTSpecial Weather StatementBYZStillwater38 min
May 31, 10:17 PM MDTSpecial Weather StatementBYZMusselshell, Yellowstone58 min
May 31, 11:14 PM MDTSpecial Weather StatementBYZBig Horn46 min
Jun 1, 3:19 PM MDTSpecial Weather StatementBYZStillwater56 min
Jun 1, 4:20 PM MDTSpecial Weather StatementBYZPark40 min
Jun 1, 4:53 PM MDTSpecial Weather StatementBYZCarbon67 min
Jun 1, 5:07 PM MDTSevere Thunderstorm WarningBYZCarbon23 min
Jun 1, 5:11 PM MDTSpecial Weather StatementBYZSweet Grass34 min
Jun 1, 5:24 PM MDTSpecial Weather StatementBYZWheatland36 min
Jun 1, 5:45 PM MDTSevere Thunderstorm WarningBYZWheatland45 min

Nearby

River Flood Warnings in Montana, 2015Every river flood warning in 2015

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.