Alert archive / Montana / Flash Flood Warnings in 2013

Flash Flood Warning 25, NWS Billings, MT

June 22, 2013Yellowstone County, Montana

NWS Billings, MT issued this flash flood warning at Jun 22, 2013, 2:54 PM MDT for Yellowstone County, Montana. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 22, 2013, 2:54 PM MDT (20:54 UTC)
Expired: Jun 22, 2013, 5:45 PM MDT
In force: 3 hr
Issued by: NWS Billings, MT
Area: Storm-based polygon
Flood severity: None

County Yellowstone County, MT

The radar

The Billings radar (KBLX), 27 km from the middle of the area, began a volume at 20:55 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 nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 8.9 hours before the alert went out and 319 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 27 J/kg
Mixed-layer CIN: -104 J/kg
Mixed-layer LCL: 1614 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 104 m²/s²
0-3 km storm-relative helicity: 197 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash 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 flash flood warning went out at Jun 22, 2:41 PM MDT, 13 minutes earlier.

Area forecast discussion, Jun 22, 2:41 PM MDT, 13 minutes before

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Hazardous weather outlook, Jun 22, 9:58 AM MDT, 4 hours 56 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
958 AM MDT SAT JUN 22 2013

MTZ028>042-056>058-063>068-WYZ098-099-231600-
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 BIG HORN MOUNTAINS-SHERIDAN FOOTHILLS-
958 AM MDT SAT JUN 22 2013

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

.DAY ONE...TODAY AND TONIGHT

WIDESPREAD SHOWERS AND THUNDERSTORMS WITH LOCALLY HEAVY RAINFALL
ARE EXPECTED TODAY AND THIS EVENING. THERE WILL BE SOME RISK FOR
FLASH FLOODING IN AND AROUND BURN SCARS. A FEW STORMS COULD
PRODUCE LARGE HAIL AND STRONG WINDS FROM SHERIDAN EASTWARD THROUGH
BROADUS AND EKALAKA THIS AFTERNOON THROUGH EARLY EVENING.

SOME SNOW WILL FALL IN THE HIGHER ELEVATIONS OF THE BEARTOOTH AND
ABSAROKA MOUNTAINS. SNOW IS THUS POSSIBLE OVER THE BEARTOOTH PASS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Special weather statement, Jun 22, 1:18 PM MDT, 1 hour 36 minutes before

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Special weather statement, Jun 22, 1:57 PM MDT, 57 minutes before

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Special weather statement, Jun 22, 1:57 PM MDT, 57 minutes before

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Special weather statement, Jun 22, 2:03 PM MDT, 51 minutes before

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Special weather statement, Jun 22, 2:27 PM MDT, 27 minutes before

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Special weather statement, Jun 22, 2:44 PM MDT, 10 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 12:24 AM MDT	Special Weather Statement	BYZ	Stillwater	51 min
Jun 22, 2:05 AM MDT	Special Weather Statement	BYZ	Yellowstone	55 min
Jun 22, 4:09 AM MDT	Special Weather Statement	BYZ	Treasure	51 min
Jun 22, 12:45 PM MDT	Severe Thunderstorm Warning	BYZ	Stillwater, Sweet Grass	30 min
Jun 22, 1:18 PM MDT	Special Weather Statement	BYZ	Golden Valley	42 min
Jun 22, 1:25 PM MDT	Tornado Warning	BYZ	Golden Valley, Stillwater	35 min
Jun 22, 1:57 PM MDT	Special Weather Statement	BYZ	Carbon	48 min
Jun 22, 2:03 PM MDT	Special Weather Statement	BYZ	Golden Valley	42 min
Jun 22, 2:26 PM MDT	Flash Flood Warning	BYZ	Musselshell	6 hr
Jun 22, 2:27 PM MDT	Special Weather Statement	BYZ	Yellowstone	48 min
Jun 22, 2:44 PM MDT	Special Weather Statement	BYZ	Carter, Powder River	46 min
Jun 22, 3:13 PM MDT	Special Weather Statement	BYZ	Big Horn	47 min
Jun 22, 3:21 PM MDT	Special Weather Statement	BYZ	Musselshell	39 min
Jun 22, 3:33 PM MDT	Special Weather Statement	BYZ	Carter	42 min
Jun 22, 4:09 PM MDT	Special Weather Statement	BYZ	Fallon	51 min
Jun 22, 4:16 PM MDT	Special Weather Statement	BYZ	Stillwater	44 min
Jun 22, 4:32 PM MDT	Special Weather Statement	BYZ	Carter	43 min
Jun 22, 4:45 PM MDT	Flash Flood Warning	BYZ	Fallon	3 hr
Jun 22, 5:44 PM MDT	Special Weather Statement	BYZ	Carbon	46 min
Jun 22, 5:51 PM MDT	Special Weather Statement	BYZ	Carbon	39 min

Nearby

Flash Flood Warnings in Montana, 2013 Every flash flood warning in 2013

Sources

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