Alert archive / Montana / Red Flag Warnings in 2021
Red Flag Warning 7, NWS Missoula, MT
NWS Missoula, MT issued this red flag warning at Jul 14, 2021, 1:08 PM MDT for 10 counties in Montana. It took effect at Jul 15, 2021, 2:00 PM MDT. It was in force for 7 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
- Jul 14, 2021, 1:08 PM MDT (19:08 UTC)
- In effect from
- Jul 15, 2021, 2:00 PM MDT
- Expired
- Jul 15, 2021, 9:00 PM MDT
- In force
- 7 hr
- Issued by
- NWS Missoula, MT
Counties Beaverhead County, MT, Deer Lodge County, MT, Granite County, MT, Jefferson County, MT, Lewis and Clark County, MT, Madison County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 122 km from the middle of the area, began a volume at 19:10 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, 7.1 hours before the alert went out and 226 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
- 1308 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
525 WWUS85 KMSO 141908 RFWMSO URGENT - FIRE WEATHER MESSAGE National Weather Service Missoula MT 108 PM MDT Wed Jul 14 2021 MTZ108-110-111-160300- /O.NEW.KMSO.FW.W.0007.210715T2000Z-210716T0300Z/ East Lolo-Deerlodge/West Beaverhead-East Beaverhead- 108 PM MDT Wed Jul 14 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 9 PM MDT THURSDAY... * Affected area: Fire Zone 108 (East Lolo). Fire Zone 110 (Deerlodge/West Beaverhead). Fire Zone 111 (East Beaverhead). * Impacts: Increased winds with low humidities combining with scattered thunderstorms will create critical fire weather conditions. Gusty and erratic outflows are a concern from high based thunderstorms. * Winds: Sustained west 10 to 20 mph with gusts to 30 mph * Minimum humidities: 10 to 20 percent * Thunderstorms: Both wet and dry * Outflow Winds: 35 to 50 mph. && $$
2 follow-up statements
887 WWUS85 KMSO 151317 RFWMSO URGENT - FIRE WEATHER MESSAGE National Weather Service Missoula MT 717 AM MDT Thu Jul 15 2021 MTZ109-160300- /O.EXA.KMSO.FW.W.0007.210715T2000Z-210716T0300Z/ Bitterroot- 717 AM MDT Thu Jul 15 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING... * Affected area: Fire Zone 109 (Bitterroot). * Impacts: Increased winds with low humidities combining with scattered thunderstorms will create critical fire weather conditions. Gusty and erratic outflows are a concern from high based thunderstorms. * Winds: Sustained west 10 to 20 mph with gusts to 30 mph * Minimum humidities: 10 to 20 percent * Thunderstorms: Both wet and dry * Outflow Winds: 35 to 50 mph. && $$ MTZ108-110-111-160300- /O.CON.KMSO.FW.W.0007.210715T2000Z-210716T0300Z/ East Lolo-Deerlodge/West Beaverhead-East Beaverhead- 717 AM MDT Thu Jul 15 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING... * Affected area: Fire Zone 108 (East Lolo). Fire Zone 110 (Deerlodge/West Beaverhead). Fire Zone 111 (East Beaverhead). * Impacts: Increased winds with low humidities combining with scattered thunderstorms will create critical fire weather conditions. Gusty and erratic outflows are a concern from high based thunderstorms. * Winds: Sustained west 10 to 20 mph with gusts to 30 mph * Minimum humidities: 10 to 20 percent * Thunderstorms: Both wet and dry * Outflow Winds: 35 to 50 mph. && $$
303 WWUS85 KMSO 160253 RFWMSO URGENT - FIRE WEATHER MESSAGE National Weather Service Missoula MT 853 PM MDT Thu Jul 15 2021 MTZ108>111-160400- /O.EXP.KMSO.FW.W.0007.000000T0000Z-210716T0300Z/ East Lolo-Bitterroot-Deerlodge/West Beaverhead-East Beaverhead- 853 PM MDT Thu Jul 15 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... * Affected area: Fire Zone 108 (East Lolo). Fire Zone 109 (Bitterroot). Fire Zone 110 (Deerlodge/West Beaverhead). Fire Zone 111 (East Beaverhead). * Impacts: Thunderstorm activity will continue to diminish with winds decreasing and humidity increasing through the evening. && $$
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.