Alert archive / Montana / Red Flag Warnings in 2012

Red Flag Warning 19, NWS Missoula, MT

September 1, 20127 counties in Montana

NWS Missoula, MT issued this red flag warning at Sep 1, 2012, 3:29 AM MDT for 7 counties in Montana. It took effect at Sep 1, 2012, 12:00 PM MDT. It was in force for 10 hr. 1 report 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 1, 2012, 3:29 AM MDT (09:29 UTC)
In effect from
Sep 1, 2012, 12:00 PM MDT
Expired
Sep 1, 2012, 10:00 PM MDT
In force
10 hr
Issued by
NWS Missoula, MT

Counties Flathead County, MT, Glacier County, MT, Granite County, MT, Lake County, MT, Lewis and Clark County, MT, Missoula County, MT, Powell County, MT

The radar

The Missoula radar (KMSX), 62 km from the middle of the area, began a volume at 09:31 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 1, 4:00 PM MDTNON-TSTM WND GST 6814 W Saint Mary, MTWIND GUSTS TO 68 MPH REPORTED AT LOGAN PASS VISITORS CENTER.

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, 9.5 hours before the alert went out and 211 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 2012-09-01Temperature 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 2012-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.1939587897Sfc1 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
4166 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
198 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.

222 
WWUS85 KMSO 010929
RFWMSO

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
329 AM MDT SAT SEP 1 2012

MTZ110-011030-
/O.CAN.KMSO.FW.A.0013.120901T1800Z-120902T0400Z/
DEERLODGE/WEST BEAVERHEAD-
329 AM MDT SAT SEP 1 2012

...FIRE WEATHER WATCH IS CANCELLED FOR GUSTY WINDS AND LOW
HUMIDITIES ACROSS THE DEERLODGE/WEST BEAVERHEAD...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE FIRE
WEATHER WATCH. 

WHILE WINDS WILL INCREASE AND BECOME GUSTY THIS AFTERNOON...RESIDUAL
MOISTURE AND CLOUD COVER WILL KEEP HUMIDITIES HIGHER THAN INITIALLY
FORECASTED.

$$

MTZ105-020400-
/O.UPG.KMSO.FW.A.0013.120901T1800Z-120902T0400Z/
/O.NEW.KMSO.FW.W.0019.120901T1800Z-120902T0400Z/
FLATHEAD/GLACIER PARK-
329 AM MDT SAT SEP 1 2012

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS
EVENING FOR GUSTY WINDS AND LOW HUMIDITIES ACROSS THE
FLATHEAD/GLACIER PARK...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW HUMIDITIES...WHICH IS IN EFFECT
FROM NOON TODAY TO 10 PM MDT THIS EVENING. THE FIRE WEATHER WATCH
IS NO LONGER IN EFFECT. 

* WINDS: WEST WINDS 10 TO 20 MPH WITH GUSTS UP TO 35 MPH THIS
  AFTERNOON.

* MINIMUM HUMIDITIES: HUMIDITIES WILL LOWER INTO THE MID TEENS.

* TIMING/LOCATION: ANOTHER DRY COLD FRONT WILL MAKE ITS WAY INTO
  THE NORTHERN ROCKIES THIS AFTERNOON. CONDITIONS WILL START TO
  IMPROVE AFTER SUNSET. THE SOUTHERN PORTIONS OF ZONE 105 WILL BE
  MOST AFFECTED BY THE COMBINATION OF WINDS AND LOW RH...INCLUDING
  THE SWAN LAKE AND SPOTTED BEAR DISTRICTS IN THE FLATHEAD
  NATIONAL FOREST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS INTENDED TO ALERT LAND MANAGERS TO EXPECTED
WEATHER CONDITIONS THAT ALONG WITH SUFFICIENTLY DRY FUELS...WILL
SIGNIFICANTLY INCREASE FIRE DANGER.

&&

$$

MTZ108-020400-
/O.UPG.KMSO.FW.A.0013.120901T1800Z-120902T0400Z/
/O.NEW.KMSO.FW.W.0019.120901T1800Z-120902T0400Z/
EAST LOLO-
329 AM MDT SAT SEP 1 2012

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS
EVENING FOR GUSTY WINDS AND LOW HUMIDITIES ACROSS THE EAST LOLO...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW HUMIDITIES...WHICH IS IN EFFECT
FROM NOON TODAY TO 10 PM MDT THIS EVENING. THE FIRE WEATHER WATCH
IS NO LONGER IN EFFECT. 

* WINDS: WEST WINDS 10 TO 20 MPH WITH GUSTS UP TO 35 MPH THIS
  AFTERNOON.

* MINIMUM HUMIDITIES: HUMIDITIES WILL LOWER INTO THE MID TEENS.

* TIMING: ANOTHER DRY COLD FRONT WILL MAKE ITS WAY INTO THE
  NORTHERN ROCKIES THIS AFTERNOON. CONDITIONS WILL START TO
  IMPROVE AFTER SUNSET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS INTENDED TO ALERT LAND MANAGERS TO EXPECTED
WEATHER CONDITIONS THAT ALONG WITH SUFFICIENTLY DRY FUELS...WILL
SIGNIFICANTLY INCREASE FIRE DANGER.

&&

$$
1 follow-up statement
939 
WWUS85 KMSO 020331
RFWMSO

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
931 PM MDT SAT SEP 1 2012

MTZ105-020445-
/O.EXP.KMSO.FW.W.0019.000000T0000Z-120902T0400Z/
FLATHEAD/GLACIER PARK-
931 PM MDT SAT SEP 1 2012

...RED FLAG WARNING WILL EXPIRE AT 10 PM MDT THIS EVENING FOR THE
FLATHEAD/GLACIER PARK...

THE RED FLAG WARNING WILL EXPIRE AT 10 PM MDT THIS EVENING. 

$$

MTZ108-020445-
/O.EXP.KMSO.FW.W.0019.000000T0000Z-120902T0400Z/
EAST LOLO-
931 PM MDT SAT SEP 1 2012

...RED FLAG WARNING WILL EXPIRE AT 10 PM MDT THIS EVENING FOR THE
EAST LOLO...

THE RED FLAG WARNING WILL EXPIRE AT 10 PM MDT THIS EVENING. 

$$

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