Alert archive / Montana / Red Flag Warnings in 2011
Red Flag Warning 4, NWS Great Falls, MT
NWS Great Falls, MT issued this red flag warning at Aug 25, 2011, 4:12 AM MDT for 18 counties in Montana. It took effect at Aug 25, 2011, 12:00 PM MDT. It was in force for 9 hr. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 25, 2011, 4:12 AM MDT (10:12 UTC)
- In effect from
- Aug 25, 2011, 12:00 PM MDT
- Expired
- Aug 25, 2011, 9:19 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, Powell County, MT, Teton County, MT, Toole County, MT
The radar
The Great Falls radar (KTFX), 24 km from the middle of the area, began a volume at 10:12 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 25, 1:40 PM MDT | TSTM WND GST 40 | 8 Wsw Fairfield, MT | 0.15 OF AN INCH OF RAIN FELL IN 15 MIN. NO HAIL |
| Aug 25, 2:53 PM MDT | TSTM WND GST 47 | Malmstrom Afb, MT | 47 MPH WIND GUST OCCURRED WITH A THUNDERSTORM THAT MOVED THROUGH MALMSTROM AIR FORCE BASE. |
| Aug 25, 7:54 PM MDT | TSTM WND GST 61 | 8 W Townsend, MT | 61 MPH THUNDERSTORM WIND GUST REPORTED AT ELKHORN RAWS SITE. SURROUNDING AUTOMATED SITES ALSO REPORTED GUSTS BETWEEN 40 AND 46 MPH AROUND THE SAME TIME. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Great_falls, MT (KTFX), launched 00:00Z, 10.2 hours before the alert went out and 37 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
- 4774 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -11 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.
285 WWUS85 KTFX 251012 RFWTFX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 412 AM MDT THU AUG 25 2011 MTZ112>118-252100- /O.UPG.KTFX.FW.A.0002.110825T1800Z-110826T0600Z/ /O.NEW.KTFX.FW.W.0004.110825T1800Z-110826T0600Z/ 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- 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- 412 AM MDT THU AUG 25 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO MIDNIGHT MDT TONIGHT FOR DRY THUNDERSTORMS WITH GUSTY OUTFLOW WINDS FOR FIRE WEATHER ZONES 112...113...114...115...116...117 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 MIDNIGHT MDT TONIGHT. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 112...113...114...115... 116...117 AND 118. * THUNDERSTORMS...ISOLATED DRY OR MOSTLY DRY THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING. * OUTFLOW WINDS...GUSTY ERRATIC WIND GUSTS AROUND 50 MPH ARE POSSIBLE WITH ANY THUNDERSTORM. * HUMIDITY...AFTERNOON HUMIDITIES WILL RANGE FROM 15 TO 20 PERCENT. * IMPACTS...THE COMBINATION OF LOW HUMIDITIES AND ISOLATED THUNDERSTORMS WITH STRONG OUTFLOW WINDS WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS TODAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE AREAS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/GREATFALLS
2 follow-up statements
021 WWUS85 KTFX 252041 RFWTFX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 241 PM MDT THU AUG 25 2011 MTZ112>118-260600- /O.CON.KTFX.FW.W.0004.000000T0000Z-110826T0600Z/ EASTERN GLACIER/TOOLE/CENTRAL AND EASTERN PONDERA/LIBERTY COUNTIES-HILL AND BLAINE COUNTIES- LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT/ROCKY MOUNTAIN FRONT-CHOUTEAU AND FERGUS COUNTIES- LINCOLN RANGER DISTRICT OF THE HELENA NATIONAL FOREST- CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS- HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL FOREST- 241 PM MDT THU AUG 25 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR DRY THUNDERSTORMS WITH GUSTY OUTFLOW WINDS FOR FIRE WEATHER ZONES 112...113...114...115...116...117 AND 118... A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. * AFFECTED AREA...FIRE WEATHER ZONES 112...113...114...115... 116...117 AND 118. * THUNDERSTORMS...ISOLATED DRY OR MOSTLY DRY THUNDERSTORMS ARE POSSIBLE THROUGH THIS EVENING. * OUTFLOW WINDS...GUSTY ERRATIC WIND GUSTS UP TO 50 MPH ARE POSSIBLE WITH ANY THUNDERSTORM. * HUMIDITY...AFTERNOON AND EARLY EVENING RELATIVE HUMIDITIES WILL RANGE FROM 15 TO 20 PERCENT. * IMPACTS...THE POTENTIAL COMBINATION OF LOW HUMIDITIES AND ISOLATED THUNDERSTORMS WITH STRONG OUTFLOW WINDS MAY LEAD TO CRITICAL FIRE WEATHER CONDITIONS THROUGH THIS EVENING. THE THREATS ASSOCIATED WITH THESE CONDITIONS ARE A BETTER CHANCE OF FIRE STARTS AND A GREATER POTENTIAL FOR RAPID FIRE SPREAD FROM THESE STARTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE AREAS OF THIS RED FLAG WARNING. && $$ HTTP://WEATHER.GOV/GREATFALLS
799 WWUS85 KTFX 260319 RFWTFX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE GREAT FALLS MT 919 PM MDT THU AUG 25 2011 MTZ112>118-260430- /O.CAN.KTFX.FW.W.0004.000000T0000Z-110826T0600Z/ 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- 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- 919 PM MDT THU AUG 25 2011 ...RED FLAG WARNING IS CANCELLED FOR DRY THUNDERSTORMS WITH GUSTY OUTFLOW WINDS FOR FIRE WEATHER ZONES 112...113...114...115... 116...117 AND 118... THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELLED THE RED FLAG WARNING. THUNDERSTORM ACTIVITY HAS DECREASED SIGNIFICANTLY THIS EVENING. THEREFORE...THE RED FLAG WARNING HAS BEEN CANCELLED. $$ 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 25, 2:08 PM MDT | Special Weather Statement | TFX | Cascade | 52 min |
| Aug 25, 2:27 PM MDT | Special Weather Statement | TFX | Broadwater | 48 min |
| Aug 25, 3:51 PM MDT | Special Weather Statement | TFX | Meagher | 39 min |
| Aug 25, 4:15 PM MDT | Special Weather Statement | TFX | 60 min | |
| Aug 25, 5:15 PM MDT | Special Weather Statement | TFX | 30 min | |
| Aug 25, 5:31 PM MDT | Special Weather Statement | TFX | 29 min | |
| Aug 25, 5:51 PM MDT | Special Weather Statement | TFX | Deer Lodge | 54 min |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.