Alert archive / Montana / Red Flag Warnings in 2012
Red Flag Warning 18, NWS Great Falls, MT
NWS Great Falls, MT issued this red flag warning at Aug 10, 2012, 3:35 AM MDT for 12 counties in Montana. It took effect at Aug 10, 2012, 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
- Aug 10, 2012, 3:35 AM MDT (09:35 UTC)
- In effect from
- Aug 10, 2012, 12:00 PM MDT
- Expired
- Aug 10, 2012, 9:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Great Falls, MT
Counties Broadwater County, MT, Cascade County, MT, Chouteau County, MT, Fergus County, MT, Gallatin County, MT, Jefferson County, MT, Judith Basin County, MT, Lewis and Clark County, MT, Meagher County, MT, Pondera County, MT, Powell County, MT, Teton County, MT
The radar
The Great Falls radar (KTFX), 50 km from the middle of the area, began a volume at 09:35 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, 9.6 hours before the alert went out and 78 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
- 3759 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
203 WWUS85 KTFX 100935 RFWTFX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 335 AM MDT FRI AUG 10 2012 MTZ114-116-118-102200- /O.UPG.KTFX.FW.A.0010.120810T1800Z-120811T0300Z/ /O.NEW.KTFX.FW.W.0018.120810T1800Z-120811T0300Z/ LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT/ROCKY MOUNTAIN FRONT- LINCOLN RANGER DISTRICT OF THE HELENA NATIONAL FOREST- HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL FOREST- 335 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS WITH GUSTY OUTFLOW WINDS FOR FIRE WEATHER ZONES 114...116 AND 118... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A RED FLAG WARNING FOR DRY THUNDERSTORMS WITH GUSTY OUTFLOW WINDS...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING. THE FIRE WEATHER WATCH HAS BEEN REPLACED BY THIS WARNING. * AFFECTED AREA...FIRE WEATHER ZONES 114...116 AND 118. * THUNDERSTORMS...MOSTLY DRY THUNDERSTORMS ARE POSSIBLE OVER SOUTHWEST AND PORTIONS OF CENTRAL MONTANA FRIDAY AFTERNOON AND EVENING. THE COMBINATION OF LIGHTNING STRIKES...LOW HUMIDITIES AND GUSTY THUNDERSTORM WINDS WILL INCREASE THE POTENTIAL FOR NEW FIRE STARTS. * OUTFLOW WINDS...SOME THUNDERSTORMS COULD PRODUCE WIND GUSTS FROM 45 TO 60 MPH. * IMPACTS...THERE IS THE POTENTIAL FOR RAPID FIRE GROWTH FROM ANY NEW FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE AREAS OF THIS RED FLAG WARNING. && $$ MTZ117-102200- /O.NEW.KTFX.FW.W.0018.120810T1800Z-120811T0300Z/ CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS- 335 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS WITH GUSTY OUTFLOW WINDS FOR FIRE WEATHER ZONE 117... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A RED FLAG WARNING FOR DRY THUNDERSTORMS WITH GUSTY OUTFLOW WINDS...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING. * AFFECTED AREA...FIRE WEATHER ZONE 117. * THUNDERSTORMS...MOSTLY DRY THUNDERSTORMS ARE POSSIBLE OVER SOUTHWEST AND PORTIONS OF CENTRAL MONTANA FRIDAY AFTERNOON AND EVENING. THE COMBINATION OF LIGHTNING STRIKES...LOW HUMIDITIES AND GUSTY THUNDERSTORM WINDS WILL INCREASE THE POTENTIAL FOR NEW FIRE STARTS. * OUTFLOW WINDS...SOME THUNDERSTORMS COULD PRODUCE WIND GUSTS FROM 45 TO 60 MPH. * IMPACTS...THERE IS THE POTENTIAL FOR RAPID FIRE GROWTH FROM ANY NEW FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE AREAS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/GREATFALLS
3 follow-up statements
786 WWUS85 KTFX 101550 RFWTFX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 950 AM MDT FRI AUG 10 2012 MTZ115-102200- /O.EXA.KTFX.FW.W.0018.120810T1800Z-120811T0300Z/ CHOUTEAU AND FERGUS COUNTIES- 950 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS WITH GUSTY OUTFLOW WINDS FOR FIRE WEATHER ZONE 115... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A RED FLAG WARNING FOR DRY THUNDERSTORMS WITH GUSTY OUTFLOW WINDS...WHICH IS IN EFFECT UNTIL 9 PM MDT THIS EVENING. * AFFECTED AREA...FIRE WEATHER ZONE 115. * THUNDERSTORMS...MOSTLY DRY THUNDERSTORMS ARE POSSIBLE OVER CENTRAL MONTANA THIS AFTERNOON AND EVENING. THE COMBINATION OF LIGHTNING STRIKES...LOW HUMIDITIES AND GUSTY THUNDERSTORM WINDS WILL INCREASE THE POTENTIAL FOR NEW FIRE STARTS. * OUTFLOW WINDS...SOME THUNDERSTORMS COULD PRODUCE WIND GUSTS FROM 45 TO 60 MPH. * IMPACTS...THERE IS THE POTENTIAL FOR RAPID FIRE GROWTH FROM ANY NEW FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE AREAS OF THIS RED FLAG WARNING. && $$ MTZ114-116>118-102200- /O.CON.KTFX.FW.W.0018.120810T1800Z-120811T0300Z/ LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT/ROCKY MOUNTAIN FRONT- LINCOLN RANGER DISTRICT OF THE HELENA NATIONAL FOREST- CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS- HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL FOREST- 950 AM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS WITH GUSTY OUTFLOW WINDS FOR FIRE WEATHER ZONES 114...116...117 AND 118... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING. * AFFECTED AREA...FIRE WEATHER ZONES 114...116 AND 118. * THUNDERSTORMS...MOSTLY DRY THUNDERSTORMS ARE POSSIBLE OVER SOUTHWEST AND PORTIONS OF CENTRAL MONTANA THIS AFTERNOON AND EVENING. THE COMBINATION OF LIGHTNING STRIKES...LOW HUMIDITIES AND GUSTY THUNDERSTORM WINDS WILL INCREASE THE POTENTIAL FOR NEW FIRE STARTS. * OUTFLOW WINDS...SOME THUNDERSTORMS COULD PRODUCE WIND GUSTS FROM 45 TO 60 MPH. * IMPACTS...THERE IS THE POTENTIAL FOR RAPID FIRE GROWTH FROM ANY NEW FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE AREAS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/GREATFALLS
056 WWUS85 KTFX 102035 RFWTFX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 235 PM MDT FRI AUG 10 2012 MTZ114>118-110300- /O.CON.KTFX.FW.W.0018.000000T0000Z-120811T0300Z/ LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT/ROCKY MOUNTAIN FRONT-CHOUTEAU AND FERGUS COUNTIES- LINCOLN RANGER DISTRICT OF THE HELENA NATIONAL FOREST- CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS- HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL FOREST- 235 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS WITH GUSTY OUTFLOW WINDS FOR FIRE WEATHER ZONES 114...115...116...117 AND 118... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING. * AFFECTED AREA...FIRE WEATHER ZONE 115. * THUNDERSTORMS...A MIX OF WET AND DRY THUNDERSTORMS WILL CONTINUE OVER THE REGION THROUGH THE EVENING HOURS. THE COMBINATION OF LIGHTNING STRIKES...LOW HUMIDITIES AND GUSTY THUNDERSTORM WINDS WILL INCREASE THE POTENTIAL FOR NEW FIRE STARTS. * OUTFLOW WINDS...SOME THUNDERSTORMS COULD PRODUCE WIND GUSTS FROM 45 TO 60 MPH. * IMPACTS...THERE IS THE POTENTIAL FOR RAPID FIRE GROWTH FROM ANY NEW FIRE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE AREAS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/GREATFALLS
518 WWUS85 KTFX 110252 RFWTFX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 852 PM MDT FRI AUG 10 2012 MTZ114>118-110400- /O.EXP.KTFX.FW.W.0018.000000T0000Z-120811T0300Z/ LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT/ROCKY MOUNTAIN FRONT-CHOUTEAU AND FERGUS COUNTIES- LINCOLN RANGER DISTRICT OF THE HELENA NATIONAL FOREST- CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS- HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL FOREST- 852 PM MDT FRI AUG 10 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR DRY THUNDERSTORMS WITH GUSTY OUTFLOW WINDS FOR FIRE WEATHER ZONES 114...115...116... 117 AND 118... THE RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING. THUNDERSTORMS HAVE DECREASED ACROSS THE AREA AND RELATIVE HUMIDITES HAVE RISEN ABOVE 25 PERCENT. THUS THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 9 PM MDT. $$ HTTP://WEATHER.GOV/GREATFALLS
The office that day
Everything else NWS Great Falls, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 2:07 AM MDT | Special Weather Statement | TFX | Jefferson | 38 min |
| Aug 10, 2:48 AM MDT | Special Weather Statement | TFX | Broadwater | 42 min |
| Aug 10, 5:20 AM MDT | Special Weather Statement | TFX | Teton | 40 min |
| Aug 10, 4:37 PM MDT | Special Weather Statement | TFX | Madison | 38 min |
| Aug 10, 5:23 PM MDT | Special Weather Statement | TFX | Madison | 37 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.