Alert archive / Idaho / Red Flag Warnings in 2012

Red Flag Warning 21, NWS Boise, ID

August 11, 2012Boise County, Gem County, Valley County, Idaho

NWS Boise, ID issued this red flag warning at Aug 11, 2012, 2:41 PM MDT for Boise County, Gem County, Valley County, Idaho. It took effect at Aug 12, 2012, 12:00 PM MDT. It was in force for 36 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 11, 2012, 2:41 PM MDT (20:41 UTC)
In effect from
Aug 12, 2012, 12:00 PM MDT
Expired
Aug 14, 2012, 12:00 AM MDT
In force
36 hr
Issued by
NWS Boise, ID

Counties Boise County, ID, Gem County, ID, Valley County, ID

The radar

The Boise radar (KCBX), 91 km from the middle of the area, began a volume at 20:46 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

Boise Airport, ID (KBOI), launched 12:00Z, 8.7 hours before the alert went out and 82 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, Boise Airport, ID at 12:00Z on 2012-08-11Temperature 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, Boise Airport, ID at 12:00Z on 2012-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.193958Sfc1 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
2783 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
14 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.

555 
WWUS85 KBOI 112041
RFWBOI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOISE ID
241 PM MDT SAT AUG 11 2012

...RED FLAG WARNING FOR HAINES 6 IN THE BOISE NATIONAL FOREST
SUNDAY AFTERNOON THROUGH MONDAY EVENING...

.DRY AND UNSTABLE CONDITIONS WILL RESULT IN A HAINES 6 ACROSS
SOUTHWEST IDAHO INCLUDING THE BOISE NATIONAL FOREST. THIS MEANS
THAT THERE IS HIGH POTENTIAL FOR PLUME DOMINATED FIRE.

IDZ403-404-121800-
/O.NEW.KBOI.FW.W.0021.120812T1800Z-120814T0600Z/
NORTHERN BOISE NATIONAL FOREST-SOUTHERN BOISE NATIONAL FOREST-
241 PM MDT SAT AUG 11 2012

...RED FLAG WARNING IN EFFECT FROM NOON SUNDAY TO MIDNIGHT MDT
MONDAY NIGHT FOR HIGH HAINES FOR NORTHERN BOISE NATIONAL FOREST
AND SOUTHERN BOISE NATIONAL FOREST...WHICH ARE FIRE WEATHER ZONES
403 AND 404...

THE NATIONAL WEATHER SERVICE IN BOISE HAS ISSUED A RED FLAG
WARNING FOR HIGH HAINES...WHICH IS IN EFFECT FROM NOON SUNDAY TO
MIDNIGHT MDT MONDAY NIGHT. 

* HAINES...6. HIGH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
DRYNESS AND INSTABILITY IN THE MID LEVELS F THE ATMOSPHERE WILL
CREATE POTENTIAL FOR EXPLOSIVE FIRE GROWTH.

&&

$$


H
3 follow-up statements
132 
WWUS85 KBOI 121857
RFWBOI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOISE ID
1257 PM MDT SUN AUG 12 2012

...RED FLAG WARNING FOR HAINES 6 BOISE NATIONAL FOREST THROUGH
MONDAY EVENING...

.DRY AND UNSTABLE CONDITIONS WILL RESULT IN A HAINES 6 ACROSS
SOUTHWEST IDAHO INCLUDING THE BOISE NATIONAL FOREST. THIS MEANS
THAT THERE IS HIGH POTENTIAL FOR PLUME DOMINATED FIRE.

IDZ403-404-132100-
/O.CON.KBOI.FW.W.0021.000000T0000Z-120814T0600Z/
NORTHERN BOISE NATIONAL FOREST-SOUTHERN BOISE NATIONAL FOREST-
1257 PM MDT SUN AUG 12 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT MONDAY
NIGHT FOR HIGH HAINES FOR NORTHERN BOISE NATIONAL FOREST AND
SOUTHERN BOISE NATIONAL FOREST...WHICH ARE FIRE WEATHER ZONES
403 AND 404...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT MONDAY
NIGHT. 

* HAINES...6. HIGH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
DRYNESS AND INSTABILITY IN THE MID LEVELS F THE ATMOSPHERE WILL
CREATE POTENTIAL FOR EXPLOSIVE FIRE GROWTH.

&&

$$


H
446 
WWUS85 KBOI 131942
RFWBOI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOISE ID
142 PM MDT MON AUG 13 2012

...RED FLAG WARNING FOR HAINES 6 BOISE NATIONAL FOREST THROUGH
THIS EVENING...

.DRY AND UNSTABLE CONDITIONS WILL RESULT IN A HAINES 6 ACROSS
SOUTHWEST IDAHO INCLUDING THE BOISE NATIONAL FOREST. THIS MEANS
THAT THERE IS HIGH POTENTIAL FOR PLUME DOMINATED FIRE.

IDZ403-404-140600-
/O.CON.KBOI.FW.W.0021.000000T0000Z-120814T0600Z/
NORTHERN BOISE NATIONAL FOREST-SOUTHERN BOISE NATIONAL FOREST-
142 PM MDT MON AUG 13 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT
FOR HIGH HAINES FOR NORTHERN BOISE NATIONAL FOREST AND SOUTHERN
BOISE NATIONAL FOREST...WHICH ARE FIRE WEATHER ZONES 403 AND
404...

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

* HAINES...6. HIGH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
DRYNESS AND INSTABILITY IN THE MID LEVELS OF THE ATMOSPHERE WILL
CREATE POTENTIAL FOR EXPLOSIVE FIRE GROWTH.

&&

$$


H
391 
WWUS85 KBOI 140551
RFWBOI

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BOISE ID
1151 PM MDT MON AUG 13 2012

...RED FLAG WARNING FOR HIGH HAINES INDEX WILL EXPIRE AT
MIDNIGHT...

IDZ403-404-140700-
/O.EXP.KBOI.FW.W.0021.000000T0000Z-120814T0600Z/
NORTHERN BOISE NATIONAL FOREST-SOUTHERN BOISE NATIONAL FOREST-
1151 PM MDT MON AUG 13 2012

...RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT FOR HIGH
HAINES FOR NORTHERN BOISE NATIONAL FOREST AND SOUTHERN BOISE
NATIONAL FOREST...WHICH ARE FIRE WEATHER ZONES 403 AND 404...

THE RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT. 

THE WARNING WILL BE ALLOWED TO EXPIRE ON SCHEDULE AT MIDNIGHT.

$$


H

Nearby

Red 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.