Alert archive / Montana / Flash Flood Warnings in 2012
Flash Flood Warning 6, NWS Missoula, MT
NWS Missoula, MT issued this flash flood warning at Jul 27, 2012, 3:54 PM MDT for Missoula County, Montana. It was in force for 73 min. 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 27, 2012, 3:54 PM MDT (21:54 UTC)
- Expired
- Jul 27, 2012, 5:07 PM MDT
- In force
- 73 min
- Issued by
- NWS Missoula, MT
- Area
- Storm-based polygon
- Flood severity
- None
County Missoula County, MT
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 9.9 hours before the alert went out and 207 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
- 8 J/kg
- Mixed-layer CIN
- -289 J/kg
- Mixed-layer LCL
- 2196 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
451 WGUS55 KMSO 272154 FFWMSO MTC063-280000- /O.NEW.KMSO.FF.W.0006.120727T2154Z-120728T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MISSOULA MT 354 PM MDT FRI JUL 27 2012 THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A * FLASH FLOOD WARNING FOR... BONNER...EAST MISSOULA...WEST RIVERSIDE BURN AREA IN CENTRAL MISSOULA COUNTY IN WEST CENTRAL MONTANA... * UNTIL 600 PM MDT. * AT 348 PM MDT...WEATHER SPOTTERS REPORTED FLASH FLOODING OVER THE WARNED AREA. * LOCATIONS IMPACTED INCLUDE...BONNER...EAST MISSOULA...TURAH AND WEST RIVERSIDE BURN AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WARNING MEANS THAT FLOODING...MUD AND DEBRIS FLOWS ARE IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. && LAT...LON 4698 11399 4697 11381 4681 11379 4680 11398 $$
2 follow-up statements
437 WGUS75 KMSO 272306 FFSMSO FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE MISSOULA MT 506 PM MDT FRI JUL 27 2012 MTC063-272314- /O.CAN.KMSO.FF.W.0006.000000T0000Z-120728T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MISSOULA MT- 506 PM MDT FRI JUL 27 2012 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL MISSOULA COUNTY... THE STRONG STORM THAT PRODUCED RAINFALL OF 0.45 INCHES IN 10 MINUTES BEFORE IT MOVED OVER THE BURN AREA HAS MOVED TO THE EAST. NO FLOODING WAS REPORTED IN THE BURN AREA. LAT...LON 4698 11399 4697 11381 4681 11379 4680 11398 $$
870 WGUS75 KMSO 272307 FFSMSO FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE MISSOULA MT 507 PM MDT FRI JUL 27 2012 MTC063-272314- /O.CAN.KMSO.FF.W.0006.000000T0000Z-120728T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MISSOULA MT- 507 PM MDT FRI JUL 27 2012 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL MISSOULA COUNTY... LAT...LON 4698 11399 4697 11381 4681 11379 4680 11398 $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 3:12 PM MDT | Special Weather Statement | MSO | Missoula | 48 min |
| Jul 27, 3:14 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 46 min |
| Jul 27, 3:47 PM MDT | Severe Thunderstorm Warning | MSO | Missoula | 41 min |
| Jul 27, 3:53 PM MDT | Severe Thunderstorm Warning | MSO | Deer Lodge, Powell, Silver Bow | 67 min |
Nearby
Flash Flood Warnings in Montana, 2012Every flash flood warning in 2012
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.