Alert archive / Montana / Red Flag Warnings in 2021
Red Flag Warning 21, NWS Missoula, MT
NWS Missoula, MT issued this red flag warning at Sep 25, 2021, 1:31 PM MDT for 4 counties in Montana. It took effect at Sep 26, 2021, 1:00 PM MDT. It was in force for 8 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 25, 2021, 1:31 PM MDT (19:31 UTC)
- In effect from
- Sep 26, 2021, 1:00 PM MDT
- Expired
- Sep 26, 2021, 9:00 PM MDT
- In force
- 8 hr
- Issued by
- NWS Missoula, MT
Counties Beaverhead County, MT, Jefferson County, MT, Madison County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 200 km from the middle of the area, began a volume at 19:34 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 12:00Z, 7.5 hours before the alert went out and 246 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
- 2711 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
842 WWUS85 KMSO 251931 RFWMSO URGENT - FIRE WEATHER MESSAGE National Weather Service Missoula MT 131 PM MDT Sat Sep 25 2021 MTZ111-261945- /O.UPG.KMSO.FW.A.0009.210926T1900Z-210927T0300Z/ /O.NEW.KMSO.FW.W.0021.210926T1900Z-210927T0300Z/ /O.CON.KMSO.FW.A.0010.210927T1900Z-210928T0300Z/ East Beaverhead- 131 PM MDT Sat Sep 25 2021 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM MDT SUNDAY... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING... The Fire Weather Watch is no longer in effect. * Affected area: Fire Zone 111 (East Beaverhead). * Impacts: The combination of gusty winds and low humidity may result in critical fire weather conditions. * Winds: Southwest to west winds 15 to 25 mph with gusts of 25 to 35 mph. * Minimum humidities: 10-15 percent. && $$
2 follow-up statements
479 WWUS85 KMSO 261908 RFWMSO URGENT - FIRE WEATHER MESSAGE National Weather Service Missoula MT 108 PM MDT Sun Sep 26 2021 MTZ111-271915- /O.UPG.KMSO.FW.A.0010.210927T1900Z-210928T0300Z/ /O.NEW.KMSO.FW.W.0022.210927T1900Z-210928T0300Z/ /O.CON.KMSO.FW.W.0021.000000T0000Z-210927T0300Z/ East Beaverhead- 108 PM MDT Sun Sep 26 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM MDT MONDAY... The Fire Weather Watch is no longer in effect. * Affected area: Fire Zone 111 (East Beaverhead). * Impacts: The combination of gusty winds and low humidity may result in critical fire weather conditions. * Winds: Southwest to west winds 15 to 20 mph with gusts of 25 to 35 mph. * Minimum humidities: 10-15 percent. && $$
063 WWUS85 KMSO 270312 RFWMSO URGENT - FIRE WEATHER MESSAGE National Weather Service Missoula MT 912 PM MDT Sun Sep 26 2021 MTZ111-280300- /O.EXP.KMSO.FW.W.0021.000000T0000Z-210927T0300Z/ /O.CON.KMSO.FW.W.0022.210927T1900Z-210928T0300Z/ East Beaverhead- 912 PM MDT Sun Sep 26 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM MDT MONDAY... * Affected area: Fire Zone 111 (East Beaverhead). * Impacts: The combination of gusty winds and low humidity may result in critical fire weather conditions. * Winds: Southwest to west winds 15 to 20 mph with gusts of 25 to 35 mph. * Minimum humidities: 10-15 percent. && $$
Nearby
Red Flag Warnings in Montana, 2021Every red flag warning in 2021
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.