Alert archive / Montana / Red Flag Warnings in 2011

Red Flag Warning 13, NWS Great Falls, MT

September 27, 201114 counties in Montana

NWS Great Falls, MT issued this red flag warning at Sep 27, 2011, 4:23 AM MDT for 14 counties in Montana. It took effect at Sep 27, 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
Sep 27, 2011, 4:23 AM MDT (10:23 UTC)
In effect from
Sep 27, 2011, 12:00 PM MDT
Expired
Sep 27, 2011, 8:55 PM MDT
In force
9 hr
Issued by
NWS Great Falls, MT

Counties Blaine County, MT, Cascade County, MT, Chouteau County, MT, Fergus County, MT, Glacier County, MT, Hill 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), 63 km from the middle of the area, began a volume at 10:29 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

TimeReportWhereRemark
Sep 27, 3:00 PM MDTNON-TSTM WND GST 568 Se East Glacier Park, MT56 MPH PEAK WIND GUST AT THE DEEP CREEK RAWS LOCATION.
Sep 27, 4:00 PM MDTNON-TSTM WND GST 8413 Wsw Saint Mary, MT84 MPH PEAK WIND GUST AT LOGAN PASS.
Sep 27, 4:19 PM MDTNON-TSTM WND GST 513 Sw Cut Bank, MT51 MPH PEAK WIND GUST AT THE CUT BANK ASOS.

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, 10.4 hours before the alert went out and 51 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.

Skew-T log-pSkew-T log-p diagram, Great_falls, MT at 00:00Z on 2011-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Great_falls, MT at 00:00Z on 2011-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3119 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
265 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

136 
WWUS85 KTFX 271023
RFWTFX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
423 AM MDT TUE SEP 27 2011


MTZ112-113-115-117-271830-
/O.NEW.KTFX.FW.W.0013.110927T1800Z-110928T0600Z/
EASTERN GLACIER/TOOLE/CENTRAL AND EASTERN PONDERA/LIBERTY
COUNTIES-HILL AND BLAINE COUNTIES-CHOUTEAU AND FERGUS COUNTIES-
CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS-
423 AM MDT TUE SEP 27 2011

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO MIDNIGHT MDT
TONIGHT FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 112...113...115 AND 117...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...WHICH IS IN
EFFECT FROM NOON TODAY TO MIDNIGHT MDT TONIGHT. 

* AFFECTED AREA...FIRE WEATHER ZONES 112...113...115 AND 117.

* WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. WIND GUSTS
  CLOSER TO THE ROCKY MOUNTAIN FRONT MAY EXCEED 60 MPH.

* RELATIVE HUMIDITY...AS LOW AS 17 PERCENT.

* IMPACTS...THE COMBINATION OF HOT AND DRY CONDITIONS...ALONG WITH
  GUSTY WEST WINDS...WILL CREATE DANGEROUS FIRE CONDITIONS FROM
  MIDDAY THROUGH THIS EVENING.

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 271400
RFWTFX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
800 AM MDT TUE SEP 27 2011

MTZ114-272100-
/O.EXA.KTFX.FW.W.0013.110927T1800Z-110928T0600Z/
LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT/ROCKY
MOUNTAIN FRONT-
800 AM MDT TUE SEP 27 2011

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO MIDNIGHT MDT
TONIGHT FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONE 114...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...WHICH IS IN
EFFECT FROM NOON TODAY TO MIDNIGHT MDT TONIGHT. 

* AFFECTED AREA...NORTHERN PORTION OF FIRE WEATHER ZONE 114 IN
  EASTERN TETON COUNTY. THIS DOES NOT INCLUDE NORTHERN LEWIS AND
  CLARK COUNTY.

* WINDS...WEST 20 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* RELATIVE HUMIDITY...AS LOW AS 20 TO 25 PERCENT.

* IMPACTS...THE COMBINATION OF HOT AND DRY CONDITIONS...ALONG 
  WITH GUSTY WEST WINDS...WILL CREATE DANGEROUS FIRE CONDITIONS 
  FROM MIDDAY THROUGH THIS EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE
AREAS OF THIS RED FLAG WARNING.

&&

$$

MTZ112-113-115-117-272100-
/O.CON.KTFX.FW.W.0013.110927T1800Z-110928T0600Z/
EASTERN GLACIER/TOOLE/CENTRAL AND EASTERN PONDERA/LIBERTY
COUNTIES-HILL AND BLAINE COUNTIES-CHOUTEAU AND FERGUS COUNTIES-
CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS-
800 AM MDT TUE SEP 27 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO MIDNIGHT
MDT TONIGHT FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 112...113...115 AND 117...

A RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO MIDNIGHT
MDT TONIGHT. 

* AFFECTED AREA...FIRE WEATHER ZONES 112...113...115 AND 117.

* WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 55 MPH.

* RELATIVE HUMIDITY...AS LOW AS 17 PERCENT.

* IMPACTS...THE COMBINATION OF HOT AND DRY CONDITIONS...ALONG 
  WITH GUSTY WEST WINDS...WILL CREATE DANGEROUS FIRE CONDITIONS 
  FROM MIDDAY THROUGH THIS EVENING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE
AREAS OF THIS RED FLAG WARNING.

&&

$$

HTTP://WEATHER.GOV/GREATFALLS
644 
WWUS85 KTFX 271820
RFWTFX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
1220 PM MDT TUE SEP 27 2011

MTZ112>115-117-280600-
/O.CON.KTFX.FW.W.0013.000000T0000Z-110928T0600Z/
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-
1220 PM MDT TUE SEP 27 2011

...RED FLAG WARNING IN EFFECT FROM NOON MDT TODAY UNTIL MIDNIGHT
MDT TONIGHT FOR LOW RELATIVE HUMIDITIES AND GUSTY WINDS FOR FIRE
ZONES 112...113...115...117...AND EASTERN TETON COUNTY IN FIRE
ZONE 114...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. 

* AFFECTED AREA...FIRE WEATHER ZONES 112...113...115 AND 117 AS
  WELL AS THE NORTHERN PORTION OF FIRE WEATHER ZONE 114 IN
  EASTERN TETON COUNTY. THIS DOES NOT INCLUDE NORTHERN LEWIS AND
  CLARK COUNTY.

* WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 50 MPH.

* RELATIVE HUMIDITY...AS LOW AS 18 PERCENT.

* IMPACTS...THE COMBINATION OF HOT AND DRY CONDITIONS...ALONG 
  WITH GUSTY WEST WINDS...WILL CREATE DANGEROUS FIRE CONDITIONS 
  FROM MIDDAY THROUGH THIS EVENING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THESE
AREAS OF THIS RED FLAG WARNING.

&&

$$

HTTP://WEATHER.GOV/GREATFALLS
563 
WWUS85 KTFX 280255
RFWTFX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
855 PM MDT TUE SEP 27 2011

MTZ112>115-117-280400-
/O.CAN.KTFX.FW.W.0013.000000T0000Z-110928T0600Z/
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-
855 PM MDT TUE SEP 27 2011

...RED FLAG WARNING IS CANCELLED FOR LOW RELATIVE HUMIDITIES AND
GUSTY WINDS FOR FIRE ZONES 112...113...115...117...AND EASTERN
TETON COUNTY IN FIRE ZONE 114...

THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS CANCELLED THE RED
FLAG WARNING. 

SURFACE WINDS HAVE DIMINISHED AND RELATIVE HUMIDITY VALUES ARE
INCREASING ACROSS THE REGION. AS A RESULT...THE RED FLAG WARNING
HAS BEEN CANCELLED. 

$$

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.