Alert archive / Wyoming / Flash Flood Warnings in 2013

Flash Flood Warning 16, NWS Billings, MT

June 12, 2013Sheridan County, Wyoming

NWS Billings, MT issued this flash flood warning at Jun 12, 2013, 7:07 PM MDT for Sheridan County, Wyoming. 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 12, 2013, 7:07 PM MDT (01:07 UTC)
Expired
Jun 12, 2013, 10:00 PM MDT
In force
3 hr
Issued by
NWS Billings, MT
Area
Storm-based polygon
Flood severity
None

County Sheridan County, WY

The radar

The Billings radar (KBLX), 180 km from the middle of the area, began a volume at 01:08 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 00:00Z, 1.1 hours before the alert went out and 227 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-pSkew-T log-p diagram, Riverton, WY at 00:00Z on 2013-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 00:00Z on 2013-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
4200 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
233 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 12, 6:55 PM MDT, 12 minutes earlier.

Area forecast discussion, Jun 12, 6:55 PM MDT, 12 minutes before
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Hazardous weather outlook, Jun 12, 6:59 PM MDT, 8 minutes before
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In the hours before

Special weather statement, Jun 12, 5:50 PM MDT, 1 hour 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
550 PM MDT WED JUN 12 2013

WYC033-130030-
SHERIDAN WY-
550 PM MDT WED JUN 12 2013

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN SHERIDAN COUNTY UNTIL 630
PM MDT...

AT 550 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR STORY...OR 13 MILES SOUTH OF SHERIDAN...
MOVING NORTHEAST AT 35 MPH.

HAIL UP TO THE SIZE OF DIMES AND WIND GUSTS UP TO 45 MPH WILL BE
POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
STORY...WYARNO...BANNER...BIG HORN AND PARKMAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4488 10678 4488 10620 4455 10665 4456 10716
TIME...MOT...LOC 2341Z 223DEG 31KT 4459 10694

STC
Special weather statement, Jun 12, 6:31 PM MDT, 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
631 PM MDT WED JUN 12 2013

MTC003-075-WYC033-130115-
POWDER RIVER MT-BIG HORN MT-SHERIDAN WY-
631 PM MDT WED JUN 12 2013

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN POWDER RIVER...
SOUTHEASTERN BIG HORN AND CENTRAL SHERIDAN COUNTIES UNTIL 715 PM
MDT...

AT 630 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
AN AREA OF STRONG THUNDERSTORMS ACROSS CENTRAL AND SOUTHERN SHERIDAN
COUNTY...MOVING NORTHEAST AT 30 MPH.

HAIL UP TO THE SIZE OF DIMES AND WIND GUSTS UP TO 45 MPH WILL BE
POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
SHERIDAN...DECKER...STORY...BANNER...PARKMAN...WYARNO AND BIG HORN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO
AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4502 10685 4502 10610 4455 10671 4456 10727
      4456 10728
TIME...MOT...LOC 0023Z 243DEG 26KT 4460 10690

STC
Special weather statement, Jun 12, 6:38 PM MDT, 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
638 PM MDT WED JUN 12 2013

MTC003-WYC033-130115-
BIG HORN MT-SHERIDAN WY-
638 PM MDT WED JUN 12 2013

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN BIG HORN AND
NORTHWESTERN SHERIDAN COUNTIES UNTIL 715 PM MDT...

AT 635 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
AN AREA OF STRONG THUNDERSTORMS OVER WESTERN SHERIDAN
COUNTY...MOVING NORTHEAST AT 30 MPH.

HAIL UP TO THE SIZE OF DIMES AND WIND GUSTS UP TO 45 MPH WILL BE
POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE... RANCHESTER...DAYTON...BURGESS
JUNCTION...ABERDEEN...AND BECKTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO
AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4465 10753 4469 10758 4469 10764 4510 10741
      4511 10676 4459 10725
TIME...MOT...LOC 0028Z 232DEG 27KT 4474 10733

STC

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 7:16 PM MDTSpecial Weather StatementBYZWheatland44 min
Jun 12, 10:23 PM MDTSpecial Weather StatementBYZSweet Grass37 min
Jun 12, 10:31 PM MDTSpecial Weather StatementBYZYellowstone44 min
Jun 13, 10:54 AM MDTSpecial Weather StatementBYZCarbon51 min
Jun 13, 11:28 AM MDTSpecial Weather StatementBYZYellowstone62 min
Jun 13, 11:33 AM MDTSevere Thunderstorm WarningBYZYellowstone42 min
Jun 13, 11:44 AM MDTSevere Thunderstorm WarningBYZBig Horn, Yellowstone46 min
Jun 13, 11:59 AM MDTSevere Thunderstorm WarningBYZYellowstone46 min
Jun 13, 12:11 PM MDTSevere Thunderstorm WarningBYZBig Horn, Yellowstone49 min
Jun 13, 12:29 PM MDTSevere Thunderstorm WarningBYZBig Horn, Musselshell, Treasure, Yellowstone31 min
Jun 13, 12:46 PM MDTSpecial Weather StatementBYZTreasure44 min
Jun 13, 1:02 PM MDTSpecial Weather StatementBYZTreasure28 min
Jun 13, 1:30 PM MDTSpecial Weather StatementBYZRosebud45 min
Jun 13, 2:15 PM MDTSpecial Weather StatementBYZPark45 min
Jun 13, 2:25 PM MDTSpecial Weather StatementBYZSweet Grass35 min
Jun 13, 2:37 PM MDTSevere Thunderstorm WarningBYZPark, Sweet Grass38 min
Jun 13, 2:44 PM MDTSpecial Weather StatementBYZBig Horn46 min
Jun 13, 3:19 PM MDTSpecial Weather StatementBYZWheatland41 min
Jun 13, 3:23 PM MDTSpecial Weather StatementBYZCarbon37 min
Jun 13, 3:38 PM MDTSevere Thunderstorm WarningBYZBig Horn52 min
Jun 13, 3:42 PM MDTSpecial Weather StatementBYZPowder River33 min
Jun 13, 3:44 PM MDTSpecial Weather StatementBYZPowder River31 min
Jun 13, 3:53 PM MDTSpecial Weather StatementBYZGolden Valley37 min
Jun 13, 4:00 PM MDTSevere Thunderstorm WarningBYZBig Horn, Powder River, Rosebud45 min
Jun 13, 4:31 PM MDTSevere Thunderstorm WarningBYZPark, Sweet Grass29 min
Jun 13, 4:36 PM MDTSpecial Weather StatementBYZGolden Valley39 min
Jun 13, 4:49 PM MDTSpecial Weather StatementBYZSweet Grass26 min
Jun 13, 5:00 PM MDTSpecial Weather StatementBYZPowder River45 min
Jun 13, 5:01 PM MDTSpecial Weather StatementBYZWheatland29 min
Jun 13, 5:02 PM MDTSevere Thunderstorm WarningBYZGolden Valley, Sweet Grass28 min
Jun 13, 5:12 PM MDTSpecial Weather StatementBYZWheatland48 min
Jun 13, 5:16 PM MDTSpecial Weather StatementBYZCarbon44 min
Jun 13, 5:25 PM MDTSpecial Weather StatementBYZStillwater35 min
Jun 13, 5:30 PM MDTTornado WarningBYZGolden Valley, Stillwater, Sweet Grass45 min
Jun 13, 5:31 PM MDTSevere Thunderstorm WarningBYZPark, Sweet Grass44 min
Jun 13, 5:42 PM MDTSevere Thunderstorm WarningBYZPark48 min
Jun 13, 5:51 PM MDTSevere Thunderstorm WarningBYZStillwater54 min
Jun 13, 5:55 PM MDTSpecial Weather StatementBYZCarbon35 min
Jun 12, 6:31 PM MDTSpecial Weather StatementBYZSheridan44 min
Jun 12, 6:38 PM MDTSpecial Weather StatementBYZSheridan37 min
Jun 12, 6:51 PM MDTSevere Thunderstorm WarningBYZSheridan54 min
Jun 13, 2:28 PM MDTSpecial Weather StatementBYZSheridan47 min
Jun 13, 2:50 PM MDTSevere Thunderstorm WarningBYZSheridan55 min
Jun 13, 4:13 PM MDTSevere Thunderstorm WarningBYZSheridan62 min

Nearby

Flash Flood Warnings in Wyoming, 2013Every 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.