Alert archive / Montana / Red Flag Warnings in 2007

Red Flag Warning 13, NWS Missoula, MT

August 6, 200710 counties in Montana; Clearwater County, Idaho County, Idaho

NWS Missoula, MT issued this red flag warning at Aug 6, 2007, 9:30 AM MDT for 10 counties in Montana; Clearwater County, Idaho County, Idaho. It took effect at Aug 6, 2007, 12:00 PM MDT. It was in force for 8 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 6, 2007, 9:30 AM MDT (15:30 UTC)
In effect from
Aug 6, 2007, 12:00 PM MDT
Expired
Aug 6, 2007, 8:23 PM MDT
In force
8 hr
Issued by
NWS Missoula, MT

Counties Clearwater County, ID, Idaho County, ID, Beaverhead County, MT, Deer Lodge County, MT, Granite County, MT, Jefferson County, MT, Lewis and Clark County, MT, Madison County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Silver Bow County, MT

The radar

The Missoula radar (KMSX), 103 km from the middle of the area, began a volume at 15:31 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.

The nearest sounding before it

Great_falls, MT (KTFX), launched 12:00Z, 3.5 hours before the alert went out and 253 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 12:00Z on 2007-08-06Temperature 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 12:00Z on 2007-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 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
1994 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
77 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.

000 
WWUS85 KMSO 061530
RFWMSO

RED FLAG WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
930 AM MDT MON AUG 6 2007

IDZ103-MTZ108>111-062330-
/O.NEW.KMSO.FW.W.0013.070806T1800Z-070807T0600Z/
CLEARWATER/NEZ PERCE-EAST LOLO-BITTERROOT-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
927 AM MDT MON AUG 6 2007 /827 AM PDT MON AUG 6 2007/

...RED FLAG WARNING IN EFFECT NOON MDT/11 AM PDT UNTIL MIDNIGHT MDT
/11 PM PDT/ TONIGHT FOR THUNDERSTORMS ACROSS THE CLEARWATER/NEZ
PERCE...EAST LOLO...BITTERROOT...DEERLODGE/WEST BEAVERHEAD...EAST
BEAVERHEAD...

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL MIDNIGHT MDT /11 PM PDT/
TONIGHT. 

AN UPPER-LEVEL LOW PRESSURE SYSTEM CENTERED OVER EASTERN WASHINGTON
AND OREGON WILL CREATE ENOUGH LIFT AND INSTABILITY TO PRODUCE
HIGH BASED...MAINLY DRY SHOWERS AND THUNDERSTORMS THIS AFTERNOON
AND EVENING. SIMILAR CONDITIONS TO SUNDAY ARE EXPECTED WITH GUSTY
AND ERRATIC OUTFLOW WINDS FROM SHOWERS AND THUNDERSTORMS ALONG
WITH CLOUD TO GROUND LIGHTNING ARE EXPECTED TO CREATE DANGEROUS
FIRE WEATHER CONDITIONS. SUSTAINED WINDS OF 15 TO 25 MPH WITH
GUSTS TO 40 MPH ARE EXPECTED IN AND NEAR THE SHOWERS AND
THUNDERSTORMS.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG GUSTY AND ERRATIC WINDS AND CLOUD TO GROUND LIGHTNING WILL
CREATE DANGEROUS FIRE WEATHER CONDITIONS.
$$
2 follow-up statements
000 
WWUS85 KMSO 062043
RFWMSO

RED FLAG WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
243 PM MDT MON AUG 6 2007

IDZ103-MTZ108>111-070600-
/O.CON.KMSO.FW.W.0013.000000T0000Z-070807T0600Z/
CLEARWATER/NEZ PERCE-EAST LOLO-BITTERROOT-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
243 PM MDT MON AUG 6 2007 /143 PM PDT MON AUG 6 2007/

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT /11 PM
PDT/ TONIGHT FOR THUNDERSTORMS ACROSS THE CLEARWATER/NEZ PERCE...
EAST LOLO...BITTERROOT...DEERLODGE/WEST BEAVERHEAD...EAST
BEAVERHEAD (ZONES 103...108-111)...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT /11 PM
PDT/ TONIGHT. 

AN UPPER-LEVEL LOW PRESSURE SYSTEM ALONG THE WEST COAST CONTINUES
TO USHER IN UPPER LEVEL MOISTURE AND UNSTABLE CONDITIONS. THIS
SCENARIO WILL PRODUCE HIGH BASED...MAINLY DRY THUNDERSTORMS AND
VIRGA SHOWERS THIS AFTERNOON AND EVENING. SIMILAR CONDITIONS TO
SUNDAY ARE EXPECTED WITH GUSTY AND ERRATIC OUTFLOW WINDS FROM
SHOWERS AND THUNDERSTORMS ALONG WITH CLOUD TO GROUND LIGHTNING ARE
EXPECTED TO CREATE DANGEROUS FIRE WEATHER CONDITIONS. SUSTAINED
WINDS OF 15 TO 25 MPH WITH GUSTS TO 40 MPH ARE EXPECTED IN AND
NEAR THE SHOWERS AND THUNDERSTORMS.

$$
000 
WWUS85 KMSO 070223
RFWMSO

RED FLAG WARNING
NATIONAL WEATHER SERVICE MISSOULA MT
823 PM MDT MON AUG 6 2007

IDZ103-MTZ108>111-070330-
/O.CAN.KMSO.FW.W.0013.000000T0000Z-070807T0600Z/
CLEARWATER/NEZ PERCE-EAST LOLO-BITTERROOT-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
823 PM MDT MON AUG 6 2007 /723 PM PDT MON AUG 6 2007/

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

THE NATIONAL WEATHER SERVICE IN MISSOULA HAS CANCELED THE RED
FLAG WARNING. HIGH LEVEL CLOUDS STREWN ACROSS CENTRAL IDAHO THIS
AFTERNOON AND EVENING HAVE INHIBITED THE CONVECTIVE POTENTIAL OVER
THE WARNED AREA AND THUS RED FLAG CONDITIONS ARE NO LONGER
EXPECTED TODAY.

$$

DICKERSON

Nearby

Red Flag Warnings in Montana, 2007Red Flag Warnings in Idaho, 2007Every red flag warning in 2007

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.