Alert archive / Montana / Flash Flood Warnings in 2011
Flash Flood Warning 21, NWS Billings, MT
NWS Billings, MT issued this flash flood warning at Jul 14, 2011, 10:29 PM MDT for Rosebud 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 outline as issued.
The facts
- Issued
- Jul 14, 2011, 10:29 PM MDT (04:29 UTC)
- Expired
- Jul 15, 2011, 1:15 AM MDT
- In force
- 3 hr
- Issued by
- NWS Billings, MT
- Area
- Storm-based polygon
- Flood severity
- None
County Rosebud County, MT
The radar
The Billings radar (KBLX), 177 km from the middle of the area, began a volume at 04:31 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
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 4.5 hours before the alert went out and 251 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.
- Mixed-layer CAPE
- 272 J/kg
- Mixed-layer CIN
- -124 J/kg
- Mixed-layer LCL
- 2109 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
671
WGUS55 KBYZ 150429
FFWBYZ
MTC087-150715-
/O.NEW.KBYZ.FF.W.0021.110715T0429Z-110715T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BILLINGS MT
1029 PM MDT THU JUL 14 2011
THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHERN ROSEBUD COUNTY IN SOUTHEAST MONTANA...
THIS INCLUDES THE CITY OF COLSTRIP...
* UNTIL 115 AM MDT
* NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES 2 TO 3 INCHES OF
RAIN HAS FALLEN SOUTH OF INTERSTATE 94 IN SOUTHERN ROSEBUD COUNTY
SINCE EARLY THIS EVENING. THIS INCLUDES THE COLSTRIP AREA. RAINFALL
OF THIS MAGNITUDE WILL LIKELY CAUSE SOME FLASH FLOODING OF SMALL
STREAMS AND LOW LYING AREAS. CREEKS WHICH MAY EXPERIENCE FLASH
FLOODING INCLUDE THE WEST AND EAST FORKS OF ARMELLS CREEK...CORRAL
CREEK AND STOCKER CREEK. RESIDENTS IN AREAS WHICH ARE PRONE TO FLASH
FLOODING SHOULD TAKE ACTION TO PROTECT THEIR LIVES AND PROPERTY.
PLEASE DO NOT DRIVE ON FLOODED ROADS.
* RAINFALL WILL END BY MIDNIGHT AS THE THUNDERSTORM ACTIVITY WEAKENS
AND MOVES TO THE EAST.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
&&
LAT...LON 4614 10615 4613 10620 4579 10619 4578 10623
4568 10624 4568 10687 4618 10678 4625 10616
$$2 follow-up statements
514
WGUS75 KBYZ 150605
FFSBYZ
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
1205 AM MDT FRI JUL 15 2011
MTC087-150715-
/O.CON.KBYZ.FF.W.0021.000000T0000Z-110715T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ROSEBUD MT-
1205 AM MDT FRI JUL 15 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM MDT FOR
SOUTHERN ROSEBUD COUNTY...
RAIN HAS ENDED OVER SOUTHERN ROSEBUD COUNTY. HOWEVER...NATIONAL
WEATHER SERVICE DOPPLER RADAR INDICATED 2 TO 3 INCHES OF RAIN HAD
FALLEN SOUTH OF INTERSTATE 94 IN SOUTHERN ROSEBUD COUNTY
SINCE EARLY THIS EVENING. THIS INCLUDES THE COLSTRIP AREA. RAINFALL
OF THIS MAGNITUDE WILL LIKELY CONTINUE TO CAUSE SOME FLASH FLOODING
OF SMALL STREAMS AND LOW LYING AREAS. CREEKS WHICH MAY EXPERIENCE
FLASH FLOODING INCLUDE THE WEST AND EAST FORKS OF ARMELLS
CREEK...CORRAL CREEK AND STOCKER CREEK. RESIDENTS IN AREAS WHICH ARE
PRONE TO FLASH FLOODING SHOULD TAKE ACTION TO PROTECT THEIR LIVES
AND PROPERTY. PLEASE DO NOT DRIVE ON FLOODED ROADS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM MDT FRIDAY
MORNING FOR SOUTHEAST MONTANA.
&&
LAT...LON 4614 10615 4613 10620 4579 10619 4578 10623
4568 10624 4568 10687 4618 10678 4625 10616
$$898
WGUS75 KBYZ 150714
FFSBYZ
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
114 AM MDT FRI JUL 15 2011
MTC087-150723-
/O.EXP.KBYZ.FF.W.0021.000000T0000Z-110715T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ROSEBUD MT-
114 AM MDT FRI JUL 15 2011
...THE FLASH FLOOD WARNING WILL EXPIRE AT 115 AM MDT FOR SOUTHERN
ROSEBUD COUNTY...
RAIN ENDED SEVERAL HOURS AGO OVER SOUTHERN ROSEBUD COUNTY AND THERE
HAVE BEEN NO REPORTS OF ANY FLASH FLOODING...THUS THE FLASH FLOOD
WARNING HAS BEEN ALLOWED TO EXPIRE.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM MDT FRIDAY
MORNING FOR SOUTHEAST MONTANA.
LAT...LON 4614 10615 4613 10620 4579 10619 4578 10623
4568 10624 4568 10687 4618 10678 4625 10616
$$The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 6:01 PM MDT | Severe Thunderstorm Warning | BYZ | Treasure, Yellowstone | 59 min |
| Jul 14, 6:09 PM MDT | Severe Thunderstorm Warning | BYZ | Musselshell, Rosebud | 51 min |
| Jul 14, 6:28 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Treasure | 62 min |
| Jul 14, 6:45 PM MDT | Special Weather Statement | BYZ | Rosebud | 60 min |
| Jul 14, 6:59 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud, Treasure | 31 min |
| Jul 14, 7:12 PM MDT | Special Weather Statement | BYZ | Musselshell | 33 min |
| Jul 14, 7:16 PM MDT | Severe Thunderstorm Warning | BYZ | Big Horn, Rosebud, Treasure | 59 min |
| Jul 14, 7:33 PM MDT | Special Weather Statement | BYZ | Custer | 57 min |
| Jul 14, 7:45 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Rosebud | 60 min |
| Jul 14, 7:47 PM MDT | Special Weather Statement | BYZ | Treasure | 28 min |
| Jul 14, 8:02 PM MDT | Severe Thunderstorm Warning | BYZ | Custer, Powder River, Rosebud | 58 min |
| Jul 14, 8:19 PM MDT | Special Weather Statement | BYZ | Rosebud | 41 min |
| Jul 14, 8:59 PM MDT | Severe Thunderstorm Warning | BYZ | Custer | 61 min |
| Jul 14, 9:03 PM MDT | Special Weather Statement | BYZ | Rosebud | 57 min |
| Jul 14, 9:17 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 58 min |
| Jul 14, 9:40 PM MDT | Severe Thunderstorm Warning | BYZ | Carter, Custer, Fallon | 50 min |
| Jul 14, 10:16 PM MDT | Severe Thunderstorm Warning | BYZ | Rosebud | 29 min |
| Jul 14, 10:29 PM MDT | Severe Thunderstorm Warning | BYZ | Fallon | 46 min |
| Jul 14, 11:02 PM MDT | Special Weather Statement | BYZ | Rosebud | 58 min |
| Jul 14, 11:59 PM MDT | Special Weather Statement | BYZ | Custer | 61 min |
| Jul 15, 12:43 AM MDT | Severe Thunderstorm Warning | BYZ | Custer | 47 min |
| Jul 15, 1:29 AM MDT | Severe Thunderstorm Warning | BYZ | Custer, Fallon | 46 min |
| Jul 15, 2:17 AM MDT | Special Weather Statement | BYZ | Fallon | 43 min |
| Jul 15, 2:22 AM MDT | Special Weather Statement | BYZ | Fallon | 53 min |
| Jul 15, 4:25 PM MDT | Special Weather Statement | BYZ | Golden Valley | 65 min |
| Jul 15, 5:12 PM MDT | Special Weather Statement | BYZ | Golden Valley, Musselshell | 63 min |
| Jul 15, 5:55 PM MDT | Severe Thunderstorm Warning | BYZ | Golden Valley, Musselshell | 65 min |
Nearby
Flash Flood Warnings in Montana, 2011Every flash flood warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.