Alert archive / Montana / Red Flag Warnings in 2011
Red Flag Warning 2, NWS Great Falls, MT
NWS Great Falls, MT issued this red flag warning at Aug 16, 2011, 3:15 PM MDT for 17 counties in Montana. It took effect at Aug 17, 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
- Aug 16, 2011, 3:15 PM MDT (21:15 UTC)
- In effect from
- Aug 17, 2011, 12:00 PM MDT
- Expired
- Aug 17, 2011, 9:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Great Falls, MT
Counties Blaine County, MT, Broadwater County, MT, Cascade County, MT, Chouteau County, MT, Fergus County, MT, Gallatin County, MT, Glacier County, MT, Hill County, MT, Jefferson County, MT, Judith Basin County, MT, Lewis and Clark County, MT, Liberty County, MT, Meagher County, MT, Phillips County, MT, Pondera County, MT, Teton County, MT, Toole County, MT
The radar
The Great Falls radar (KTFX), 33 km from the middle of the area, began a volume at 21:22 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, 9.3 hours before the alert went out and 30 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
- 4225 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
139 WWUS85 KTFX 162115 RFWTFX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 315 PM MDT TUE AUG 16 2011 MTZ112>115-117-118-170400- /O.NEW.KTFX.FW.W.0002.110817T1800Z-110818T0300Z/ EASTERN GLACIER/TOOLE/CENTRAL AND EASTERN PONDERA/LIBERTY COUNTIES-HILL AND BLAINE COUNTIES- LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT/ROCKY MOUNTAIN FRONT-CHOUTEAU AND FERGUS COUNTIES- CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS- HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL FOREST- 315 PM MDT TUE AUG 16 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT WEDNESDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 112...113...114...115...117 AND 118 FOR ELEVATIONS BELOW 5500 FEET... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A RED FLAG WARNING FOR ELEVATIONS BELOW 5500 FEET FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM NOON TO 9 PM MDT WEDNESDAY. * AFFECTED AREA...FIRE WEATHER ZONES 112...113...114...115...117 AND 118 FOR ELEVATIONS BELOW 5500 FEET. * WINDS...EXPECT WEST WINDS OF 10 TO 20 MPH...WITH GUSTS AROUND 35 MPH DURING THE AFTERNOON AND EVENING HOURS. * RELATIVE HUMIDITY...AFTERNOON AND EVENING RELATIVE HUMIDITIES WILL RANGE FROM 12 TO 17 PERCENT. * IMPACTS...WITH DRY CONDITIONS AT LOWER ELEVATIONS...THE GRASSY AREAS HAVE DRIED OUT. THUS...WITH THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITIES...THERE IS THE POTENTIAL THAT ANY NEW FIRE STARTS IN THE WARNED AREA COULD GROW RAPIDLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE AREAS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/GREATFALLS
4 follow-up statements
583 WWUS85 KTFX 170322 RFWTFX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 922 PM MDT TUE AUG 16 2011 MTZ112>115-117-118-171200- /O.CON.KTFX.FW.W.0002.110817T1800Z-110818T0300Z/ EASTERN GLACIER/TOOLE/CENTRAL AND EASTERN PONDERA/LIBERTY COUNTIES-HILL AND BLAINE COUNTIES- LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT/ROCKY MOUNTAIN FRONT-CHOUTEAU AND FERGUS COUNTIES- CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS- HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL FOREST- 922 PM MDT TUE AUG 16 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM MDT WEDNESDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 112...113...114...115...117 AND 118 FOR ELEVATIONS BELOW 5500 FEET... A RED FLAG WARNING BELOW 5500 FEET REMAINS IN EFFECT FROM NOON TO 9 PM MDT WEDNESDAY. * AFFECTED AREA...FIRE WEATHER ZONES 112...113...114...115...117 AND 118 FOR ELEVATIONS BELOW 5500 FEET. * WINDS...WEST 10 TO 20 MPH...WITH GUSTS UP TO 40 MPH. * RELATIVE HUMIDITY...WIDESPREAD HUMIDITIES OF 15 TO 20 PERCENT. * IMPACTS...WITH DRY CONDITIONS AT LOWER ELEVATIONS...THE GRASSY AREAS HAVE DRIED OUT. THUS...WITH THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITIES...THERE IS THE POTENTIAL THAT ANY NEW FIRE STARTS IN THE WARNED AREA COULD GROW RAPIDLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE AREAS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/GREATFALLS
822 WWUS85 KTFX 171018 RFWTFX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 418 AM MDT WED AUG 17 2011 MTZ112>115-117-118-172100- /O.CON.KTFX.FW.W.0002.110817T1800Z-110818T0300Z/ EASTERN GLACIER/TOOLE/CENTRAL AND EASTERN PONDERA/LIBERTY COUNTIES-HILL AND BLAINE COUNTIES- LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT/ROCKY MOUNTAIN FRONT-CHOUTEAU AND FERGUS COUNTIES- CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS- HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL FOREST- 418 AM MDT WED AUG 17 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 112...113...114...115...117 AND 118 FOR ELEVATIONS BELOW 5500 FEET... A RED FLAG WARNING BELOW 5500 FEET REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING. * AFFECTED AREA...FIRE WEATHER ZONES 112...113...114...115...117 AND 118 FOR ELEVATIONS BELOW 5500 FEET. * WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * RELATIVE HUMIDITY...WIDESPREAD RELATIVE HUMIDITIES AROUND 15 PERCENT. * IMPACTS...WITH DRY CONDITIONS AT LOWER ELEVATIONS...THE GRASSY AREAS HAVE DRIED OUT. THUS...WITH THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITIES...THERE IS THE POTENTIAL THAT ANY NEW FIRE STARTS IN THE WARNED AREA COULD GROW RAPIDLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE AREAS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/GREATFALLS
166 WWUS85 KTFX 172044 RFWTFX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 244 PM MDT WED AUG 17 2011 MTZ112>115-117-118-180300- /O.CON.KTFX.FW.W.0002.000000T0000Z-110818T0300Z/ EASTERN GLACIER/TOOLE/CENTRAL AND EASTERN PONDERA/LIBERTY COUNTIES-HILL AND BLAINE COUNTIES- LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT/ROCKY MOUNTAIN FRONT-CHOUTEAU AND FERGUS COUNTIES- CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS- HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL FOREST- 244 PM MDT WED AUG 17 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 112...113...114...115...117 AND 118 FOR ELEVATIONS BELOW 5500 FEET... A RED FLAG WARNING BELOW 5500 FEET REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING. * AFFECTED AREA...FIRE WEATHER ZONES 112...113...114...115...117 AND 118 FOR ELEVATIONS BELOW 5500 FEET. * WINDS...WEST 15 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 11 PERCENT. * IMPACTS...WITH DRY CONDITIONS AT LOWER ELEVATIONS...GRASSY AREAS HAVE DRIED OUT. THUS...WITH THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITIES...THERE IS THE POTENTIAL THAT ANY NEW FIRE STARTS IN THE WARNED AREA COULD SPREAD RAPIDLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE AREAS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/GREATFALLS
269 WWUS85 KTFX 180243 RFWTFX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 843 PM MDT WED AUG 17 2011 ...THE RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING AS FIRE CONDITIONS IMPROVE... MTZ112>115-117-118-180345- /O.EXP.KTFX.FW.W.0002.000000T0000Z-110818T0300Z/ EASTERN GLACIER/TOOLE/CENTRAL AND EASTERN PONDERA/LIBERTY COUNTIES-HILL AND BLAINE COUNTIES- LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT/ROCKY MOUNTAIN FRONT-CHOUTEAU AND FERGUS COUNTIES- CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS- HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL FOREST- 843 PM MDT WED AUG 17 2011 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 112...113...114...115...117 AND 118 FOR ELEVATIONS BELOW 5500 FEET... THE RED FLAG WARNING BELOW 5500 FEET WILL EXPIRE AT 9 PM MDT THIS EVENING. DRY CONDITIONS AND BREEZY WINDS WILL CONTINUE UNTIL ABOUT THE MIDDLE OF THE NIGHT ACROSS THE PLAINS. THE POTENTIAL FOR FIRE STARTS TO SPREAD QUICKLY WILL CONTINUE TO DECREASE THROUGH THE NIGHT AS TEMPERATURES COOL AND HUMIDITY RISES. $$ HTTP://WEATHER.GOV/GREATFALLS
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.