Alert archive / Montana / Red Flag Warnings in 2012
Red Flag Warning 14, NWS Missoula, MT
NWS Missoula, MT issued this red flag warning at Aug 21, 2012, 10:51 AM MDT for 7 counties in Montana. It took effect at Aug 21, 2012, 3:00 PM MDT. It was in force for 9 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 21, 2012, 10:51 AM MDT (16:51 UTC)
- In effect from
- Aug 21, 2012, 3:00 PM MDT
- Expired
- Aug 22, 2012, 12:00 AM MDT
- In force
- 9 hr
- Issued by
- NWS Missoula, MT
Counties Beaverhead County, MT, Deer Lodge County, MT, Granite County, MT, Jefferson County, MT, Madison County, MT, Powell County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 154 km from the middle of the area, began a volume at 16:54 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 21, 7:02 PM MDT | TSTM WND GST 47 | Butte, MT | ELEVATION 5545 FEET. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Great_falls, MT (KTFX), launched 12:00Z, 4.9 hours before the alert went out and 231 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3718 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -50 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
725 WWUS85 KMSO 211651 RFWMSO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1051 AM MDT TUE AUG 21 2012 MTZ110-111-220600- /O.NEW.KMSO.FW.W.0014.120821T2100Z-120822T0600Z/ DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD- 1051 AM MDT TUE AUG 21 2012 ...RED FLAG WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO MIDNIGHT MDT TONIGHT FOR THUNDERSTORMS ACROSS THE DEERLODGE/WEST BEAVERHEAD...EAST BEAVERHEAD... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A RED FLAG WARNING FOR THUNDERSTORMS...WHICH IS IN EFFECT FROM 3 PM THIS AFTERNOON TO MIDNIGHT MDT TONIGHT. * WINDS: THUNDERSTORM OUTFLOW WIND GUSTS TO 45 MPH. * MINIMUM HUMIDITIES: 12-22 PERCENT. * THUNDERSTORMS: MIX OF DRY/WET THUNDERSTORMS WITH FREQUENT LIGHTNING. * TIMING: LATE THIS AFTERNOON THROUGH THE EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS INTENDED TO ALERT LAND MANAGERS TO EXPECTED WEATHER CONDITIONS THAT ALONG WITH SUFFICIENTLY DRY FUELS...WILL SIGNIFICANTLY INCREASE FIRE DANGER. && $$
1 follow-up statement
691 WWUS85 KMSO 220539 RFWMSO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 1139 PM MDT TUE AUG 21 2012 MTZ110-111-220645- /O.EXP.KMSO.FW.W.0014.000000T0000Z-120822T0600Z/ DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD- 1139 PM MDT TUE AUG 21 2012 ...RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT FOR THE DEERLODGE/WEST BEAVERHEAD...EAST BEAVERHEAD... THE RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT. THUNDERSTORMS HAVE BEGUN TO DECREASE IN COVERAGE LATE THIS EVENING. THEREFORE THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT MIDNIGHT. $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 3:08 PM MDT | Special Weather Statement | MSO | Silver Bow | 37 min |
| Aug 21, 3:45 PM MDT | Special Weather Statement | MSO | Powell | 45 min |
| Aug 21, 3:56 PM MDT | Special Weather Statement | MSO | Missoula | 49 min |
| Aug 21, 4:59 PM MDT | Special Weather Statement | MSO | 46 min | |
| Aug 21, 5:52 PM MDT | Special Weather Statement | MSO | 38 min |
Nearby
Red Flag Warnings in Montana, 2012Every red flag 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.