Alert archive / Montana / Red Flag Warnings in 2011
Red Flag Warning 5, NWS Missoula, MT
NWS Missoula, MT issued this red flag warning at Sep 6, 2011, 3:31 AM MDT for 7 counties in Montana. It took effect at Sep 6, 2011, 12:00 PM MDT. It was in force for 9 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
- Sep 6, 2011, 3:31 AM MDT (09:31 UTC)
- In effect from
- Sep 6, 2011, 12:00 PM MDT
- Expired
- Sep 6, 2011, 9:16 PM 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 09:30 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
Great_falls, MT (KTFX), launched 00:00Z, 9.5 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
- 3901 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
545 WWUS85 KMSO 060931 RFWMSO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 331 AM MDT TUE SEP 6 2011 MTZ110-111-062100- /O.NEW.KMSO.FW.W.0005.110906T1800Z-110907T0600Z/ DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD- 331 AM MDT TUE SEP 6 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO MIDNIGHT MDT TONIGHT FOR WINDS AND LOW HUMIDITIES ACROSS THE DEERLODGE/WEST BEAVERHEAD...EAST BEAVERHEAD... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A RED FLAG WARNING FOR GUSTY WINDS AND LOW HUMIDITIES...WHICH IS IN EFFECT FROM NOON TODAY TO MIDNIGHT MDT TONIGHT. * WINDS: NORTH 5-10 MPH * MINIMUM HUMIDITIES: 8-12 PERCENT WITH POOR RECOVERIES CONTINUING OVERNIGHT. * THUNDERSTORMS:ISOLATED HIGH BASED THUNDERSTORMS WITH GUSTY WINDS AND LIGHTNING MAIN IMPACTS. * TIMING:NOON TODAY THROUGH MIDNIGHT. 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. && $$
2 follow-up statements
476 WWUS85 KMSO 062040 RFWMSO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 240 PM MDT TUE SEP 6 2011 MTZ110-111-070600- /O.CON.KMSO.FW.W.0005.000000T0000Z-110907T0600Z/ DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD- 240 PM MDT TUE SEP 6 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR GUSTY WINDS AND LOW HUMIDITIES ACROSS THE DEERLODGE/WEST BEAVERHEAD...EAST BEAVERHEAD... A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * WINDS: NORTH 5-10 MPH * MINIMUM HUMIDITIES: 8-12 PERCENT WITH POOR RECOVERIES CONTINUING OVERNIGHT. * THUNDERSTORMS: ISOLATED HIGH BASED THUNDERSTORMS WITH GUSTY WINDS AND LIGHTNING...NO RAIN. * TIMING: NOON TODAY THROUGH MIDNIGHT. * HAINES INDEX OF 6. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS INTENDED TO ALERT LAND MANAGERS TO EXPECTED WEATHER CONDITIONS THAT ALONG WITH SUFFICIENTLY DRY FUELS...WILL SIGNIFICANTLY INCREASE FIRE DANGER. && $$
450 WWUS85 KMSO 070316 RFWMSO URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MISSOULA MT 916 PM MDT TUE SEP 6 2011 MTZ110-111-070430- /O.CAN.KMSO.FW.W.0005.000000T0000Z-110907T0600Z/ DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD- 916 PM MDT TUE SEP 6 2011 ...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITIES ACROSS THE DEERLODGE/WEST BEAVERHEAD...EAST BEAVERHEAD... THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE RED FLAG WARNING. WINDS HAVE DECREASED AND HUMIDITY HAS BEGUN TO RECOVER ABOVE CRITICAL VALUES THIS EVENING. THEREFORE THE RED FLAG WILL BE CANCELLED. $$
Nearby
Red Flag Warnings in Montana, 2011Every red flag 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.