Alert archive / Montana / Red Flag Warnings in 2012

Red Flag Warning 22, NWS Missoula, MT

September 13, 20128 counties in Montana; 5 counties in Idaho

NWS Missoula, MT issued this red flag warning at Sep 13, 2012, 2:07 PM MDT for 8 counties in Montana; 5 counties in Idaho. It took effect at Sep 14, 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
Sep 13, 2012, 2:07 PM MDT (20:07 UTC)
In effect from
Sep 14, 2012, 12:00 PM MDT
Expired
Sep 14, 2012, 9:18 PM MDT
In force
9 hr
Issued by
NWS Missoula, MT

Counties Clearwater County, ID, Idaho County, ID, Latah County, ID, Lewis County, ID, Nez Perce County, ID, Beaverhead County, MT, Deer Lodge County, MT, Granite County, MT, Jefferson County, MT, Madison County, MT, Powell County, MT, Ravalli County, MT, Silver Bow County, MT

The radar

The Missoula radar (KMSX), 101 km from the middle of the area, began a volume at 20:07 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

Spokane, WA (KOTX), launched 12:00Z, 8.1 hours before the alert went out and 243 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, Spokane, WA at 12:00Z on 2012-09-13Temperature 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, Spokane, WA at 12:00Z on 2012-09-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 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
2149 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
80 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.

253 
WWUS85 KMSO 132007
RFWMSO

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
207 PM MDT THU SEP 13 2012

IDZ102-103-MTZ109-140415-
/O.UPG.KMSO.FW.A.0014.120914T1700Z-120915T0600Z/
/O.NEW.KMSO.FW.W.0022.120914T1800Z-120915T0600Z/
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-BITTERROOT-
207 PM MDT THU SEP 13 2012 /107 PM PDT THU SEP 13 2012/

...RED FLAG WARNING IN EFFECT FROM NOON MDT /11 AM PDT/ FRIDAY TO
MIDNIGHT MDT /11 PM PDT/ FRIDAY NIGHT FOR GUSTY WINDS...LOW 
HUMIDITIES AND HIGH HAINES ACROSS THE PALOUSE/HELLS
CANYON...CLEARWATER/NEZ PERCE...BITTERROOT (ZONES 102, 103, 109)...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS...LOW HUMIDITIES AND HIGH HAINES...WHICH 
IS IN EFFECT FROM NOON MDT /11 AM PDT/ FRIDAY TO MIDNIGHT MDT /11
PM PDT/ FRIDAY NIGHT. THE FIRE WEATHER WATCH IS NO LONGER IN
EFFECT.


* THE BREAKDOWN OF A RIDGE OF HIGH PRESSURE WILL CREATE VERY
  UNSTABLE CONDITIONS ON FRIDAY. INSTABILITY WILL COMBINE WITH
  WINDY CONDITIONS...VERY LOW HUMIDITY AND HIGH HAINES TO CREATE
  INCREASED FIRE DANGER ALONG MID SLOPES AND RIDGE TOPS.

* WINDS: WEST 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* MINIMUM HUMIDITIES: 7 TO 13 PERCENT.

* HAINES INDEX: 6 HIGH...POTENTIAL FOR PLUME DOMINATED FIRES.

* TIMING: HUMIDITIES WILL REACH A MINIMUM FRIDAY AFTERNOON... WITH
  WINDS BECOMING GUSTY DURING THE SAME TIME. ESTIMATED TIME FOR
  STRONGEST WINDS WILL BE BETWEEN 1500 MDT/1400 PDT AND 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.

&&

$$

MTZ110-111-140415-
/O.UPG.KMSO.FW.A.0014.120914T1700Z-120915T0600Z/
/O.NEW.KMSO.FW.W.0022.120914T1800Z-120915T0600Z/
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
207 PM MDT THU SEP 13 2012

...RED FLAG WARNING IN EFFECT FROM NOON FRIDAY TO MIDNIGHT MDT
FRIDAY NIGHT FOR GUSTY WINDS...LOW HUMIDITIES AND HIGH HAINES
ACROSS THE DEERLODGE/WEST BEAVERHEAD...EAST BEAVERHEAD (ZONES 110,
111) ...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS...LOW HUMIDITIES AND HIGH HAINES...WHICH 
IS IN EFFECT FROM NOON FRIDAY TO MIDNIGHT MDT FRIDAY NIGHT. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

* THE BREAKDOWN OF A RIDGE OF HIGH PRESSURE WILL CREATE VERY
  UNSTABLE CONDITIONS ON FRIDAY. INSTABILITY WILL COMBINE WITH
  WINDY CONDITIONS...VERY LOW HUMIDITY AND HIGH HAINES TO CREATE
  INCREASED FIRE DANGER ALONG MIDSLOPES AND RIDGE TOPS.

* WINDS: 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* MINIMUM HUMIDITIES: 7 TO 13 PERCENT.

* HAINES INDEX: 6 HIGH...POTENTIAL FOR PLUME DOMINATED FIRES.

* TIMING: HUMIDITIES WILL REACH A MINIMUM FRIDAY AFTERNOON... WITH
  WINDS BECOMING GUSTY DURING THE SAME TIME. ESTIMATED TIME FOR
  STRONGEST WINDS WILL BE BETWEEN 1500 MDT/1400 PDT AND 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.

&&

$$
3 follow-up statements
298 
WWUS85 KMSO 140301
RFWMSO

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
901 PM MDT THU SEP 13 2012

IDZ102-103-MTZ109-141200-
/O.CON.KMSO.FW.W.0022.120914T1800Z-120915T0600Z/
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-BITTERROOT-
901 PM MDT THU SEP 13 2012 /801 PM PDT THU SEP 13 2012/

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON MDT /11 AM PDT/
FRIDAY TO MIDNIGHT MDT /11 PM PDT/ FRIDAY NIGHT FOR GUSTY WINDS
AND LOW HUMIDITIES ACROSS THE PALOUSE/HELLS CANYON...
CLEARWATER/NEZ PERCE...BITTERROOT...

A RED FLAG WARNING REMAINS IN EFFECT FROM NOON MDT /11 AM PDT/
FRIDAY TO MIDNIGHT MDT /11 PM PDT/ FRIDAY NIGHT. 

* THE BREAKDOWN OF A RIDGE OF HIGH PRESSURE WILL CREATE VERY 
  UNSTABLE CONDITIONS ON FRIDAY. INSTABILITY WILL COMBINE WITH 
  WINDY CONDITIONS...VERY LOW HUMIDITY AND HIGH HAINES TO CREATE 
  INCREASED FIRE DANGER ALONG MID SLOPES AND RIDGE TOPS. 

* WINDS: WEST 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* MINIMUM HUMIDITIES: 7 TO 13 PERCENT.

* HAINES INDEX: 6 HIGH...POTENTIAL FOR PLUME DOMINATED FIRES.

* TIMING: HUMIDITIES WILL REACH A MINIMUM FRIDAY AFTERNOON... 
  WITH WINDS BECOMING GUSTY DURING THE SAME TIME. ESTIMATED TIME 
  FOR STRONGEST WINDS WILL BE BETWEEN 1500 MDT/1400 PDT AND 
  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.

&&

$$

MTZ110-111-141200-
/O.CON.KMSO.FW.W.0022.120914T1800Z-120915T0600Z/
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
901 PM MDT THU SEP 13 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO
MIDNIGHT MDT FRIDAY NIGHT FOR GUSTY WINDS AND LOW HUMIDITIES
ACROSS THE DEERLODGE/WEST BEAVERHEAD...EAST BEAVERHEAD...

A RED FLAG WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO MIDNIGHT
MDT FRIDAY NIGHT. 

* THE BREAKDOWN OF A RIDGE OF HIGH PRESSURE WILL CREATE VERY 
  UNSTABLE CONDITIONS ON FRIDAY. INSTABILITY WILL COMBINE WITH 
  WINDY CONDITIONS...VERY LOW HUMIDITY AND HIGH HAINES TO CREATE 
  INCREASED FIRE DANGER ALONG MIDSLOPES AND RIDGE TOPS. 

* WINDS: 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* MINIMUM HUMIDITIES: 7 TO 13 PERCENT.

* HAINES INDEX: 6 HIGH...POTENTIAL FOR PLUME DOMINATED FIRES.

* TIMING: HUMIDITIES WILL REACH A MINIMUM FRIDAY AFTERNOON... 
  WITH WINDS BECOMING GUSTY DURING THE SAME TIME. ESTIMATED TIME 
  FOR STRONGEST WINDS WILL BE BETWEEN 1500 MDT/1400 PDT AND 
  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.

&&

$$
909 
WWUS85 KMSO 140901
RFWMSO

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
301 AM MDT FRI SEP 14 2012

IDZ102-103-MTZ109-150600-
/O.CON.KMSO.FW.W.0022.120914T1800Z-120915T0600Z/
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-BITTERROOT-
301 AM MDT FRI SEP 14 2012 /201 AM PDT FRI SEP 14 2012/

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON MDT /11 AM PDT/
TODAY TO MIDNIGHT MDT /11 PM PDT/ TONIGHT FOR GUSTY WINDS AND LOW
HUMIDITIES ACROSS THE PALOUSE/HELLS CANYON...CLEARWATER/NEZ
PERCE...BITTERROOT...

A RED FLAG WARNING REMAINS IN EFFECT FROM NOON MDT /11 AM PDT/
TODAY TO MIDNIGHT MDT /11 PM PDT/ TONIGHT. 

* THE BREAKDOWN OF A RIDGE OF HIGH PRESSURE WILL CREATE VERY 
  UNSTABLE CONDITIONS TODAY. INSTABILITY WILL COMBINE WITH 
  WINDY CONDITIONS...VERY LOW HUMIDITY AND HIGH HAINES TO CREATE 
  INCREASED FIRE DANGER ALONG MID SLOPES AND RIDGE TOPS. 

* WINDS: WEST 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* MINIMUM HUMIDITIES: 7 TO 13 PERCENT.

* HAINES INDEX: 6 HIGH...POTENTIAL FOR PLUME DOMINATED FIRES.

* TIMING: HUMIDITIES WILL REACH A MINIMUM FRIDAY AFTERNOON... 
  WITH WINDS BECOMING GUSTY DURING THE SAME TIME. ESTIMATED TIME 
  FOR STRONGEST WINDS WILL BE BETWEEN 1500 MDT/1400 PDT AND 
  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.

&&

$$

MTZ110-111-150600-
/O.CON.KMSO.FW.W.0022.120914T1800Z-120915T0600Z/
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
301 AM MDT FRI SEP 14 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO MIDNIGHT
MDT TONIGHT FOR GUSTY WINDS AND LOW HUMIDITIES ACROSS THE
DEERLODGE/WEST BEAVERHEAD...EAST BEAVERHEAD...

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

* THE BREAKDOWN OF A RIDGE OF HIGH PRESSURE WILL CREATE VERY 
  UNSTABLE CONDITIONS TODAY. INSTABILITY WILL COMBINE WITH 
  WINDY CONDITIONS...VERY LOW HUMIDITY AND HIGH HAINES TO CREATE 
  INCREASED FIRE DANGER ALONG MIDSLOPES AND RIDGE TOPS. 

* WINDS: 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* MINIMUM HUMIDITIES: 7 TO 13 PERCENT.

* HAINES INDEX: 6 HIGH...POTENTIAL FOR PLUME DOMINATED FIRES.

* TIMING: HUMIDITIES WILL REACH A MINIMUM FRIDAY AFTERNOON... 
  WITH WINDS BECOMING GUSTY DURING THE SAME TIME. ESTIMATED TIME 
  FOR STRONGEST WINDS WILL BE BETWEEN 1500 MDT/1400 PDT AND 
  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.

&&

$$
026 
WWUS85 KMSO 150318
RFWMSO

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
918 PM MDT FRI SEP 14 2012

IDZ102-103-MTZ109>111-150430-
/O.CAN.KMSO.FW.W.0022.000000T0000Z-120915T0600Z/
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-BITTERROOT-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
918 PM MDT FRI SEP 14 2012 /818 PM PDT FRI SEP 14 2012/

...RED FLAG WARNING IS CANCELLED FOR THE PALOUSE/HELLS CANYON...
CLEARWATER/NEZ PERCE...BITTERROOT...DEERLODGE/WEST BEAVERHEAD...
EAST BEAVERHEAD...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELLED THE RED
FLAG WARNING. 

ALTHOUGH HUMIDITY REMAINS LOW...IT WILL CONTINUE TO SLOWLY RECOVER
WITH WINDS DECREASING SIGNIFICANTLY THROUGH THE REST OF THIS EVENING.

$$

The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 13, 3:31 AM MDTFire Weather WatchMSOBeaverhead, Deer Lodge, Granite, Jefferson, Madison, Powell and 2 more11 hr

Nearby

Red Flag Warnings in Montana, 2012Red Flag Warnings in Idaho, 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.