Alert archive / Idaho / Red Flag Warnings in 2021

Red Flag Warning 13, NWS Pocatello, ID

July 7, 202122 counties in Idaho

NWS Pocatello, ID issued this red flag warning at Jul 7, 2021, 1:18 PM MDT for 22 counties in Idaho. It took effect at Jul 8, 2021, 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
Jul 7, 2021, 1:18 PM MDT (19:18 UTC)
In effect from
Jul 8, 2021, 12:00 PM MDT
Expired
Jul 8, 2021, 9:00 PM MDT
In force
9 hr
Issued by
NWS Pocatello, ID
All 22 counties

Bannock County, ID, Bear Lake County, ID, Bingham County, ID, Blaine County, ID, Bonneville County, ID, Butte County, ID, Caribou County, ID, Cassia County, ID, Clark County, ID, Custer County, ID, Franklin County, ID, Fremont County, ID, Jefferson County, ID, Jerome County, ID, Lemhi County, ID, Lincoln County, ID, Madison County, ID, Minidoka County, ID, Oneida County, ID, Power County, ID, Teton County, ID, Twin Falls County, ID

The radar

The Pocatello radar (KSFX), 14 km from the middle of the area, began a volume at 19:17 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, 7.3 hours before the alert went out and 280 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 2021-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 51 joules per kilogram.LCLLFCEL10008507005003002001001 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 2021-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 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
51 J/kg
Mixed-layer CIN
-343 J/kg
Mixed-layer LCL
3630 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

283 
WWUS85 KPIH 071918
RFWPIH

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
118 PM MDT Wed Jul 7 2021

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT WEDNESDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 422...

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT WEDNESDAY FOR
GUSTY WINDS, LOW RELATIVE HUMIDITY AND SCATTERED THUNDERSTORMS
FOR FIRE WEATHER ZONES 475 and 476...

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410, 
413, 425, 427 AND 476...

IDZ422-080300-
/O.CAN.KPIH.FW.A.0004.210708T1800Z-210709T0300Z/
/O.CON.KPIH.FW.W.0012.000000T0000Z-210708T0300Z/
Sawtooth Range/Northern Sawtooth NF-
118 PM MDT Wed Jul 7 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE
422...
...FIRE WEATHER WATCH FOR THURSDAY IS CANCELLED FOR GUSTY WINDS 
AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 422...

The National Weather Service in Pocatello has cancelled the Fire
Weather Watch.

* AFFECTED AREA...Fire Weather Zone 422 Sawtooth Range/Northern 
  Sawtooth NF.

* WINDS...West 10 to 20 mph with gusts up to 30 mph.

* RELATIVE HUMIDITY...10 to 20 percent.

* IMPACTS...Gusty winds and low humidity will create hazardous 
  fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly based on these criteria
for Southeastern Idaho:

- Relative humidity at or below 15 percent and wind gusts of at
least 25 mph in the mountains, or 30 mph in the Snake Plain.

- Thunderstorm coverage of 25 percent, without specific rainfall
criteria.

- Other high impact events deemed critical by the National
Weather Service and area fire management agencies.

&&

$$

IDZ476-080300-
/O.UPG.KPIH.FW.A.0004.210708T1800Z-210709T0300Z/
/O.NEW.KPIH.FW.W.0013.210708T1800Z-210709T0300Z/
/O.CON.KPIH.FW.W.0012.000000T0000Z-210708T0300Z/
Lemhi and Lost River Range/Challis NF-
118 PM MDT Wed Jul 7 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND SCATTERED THUNDERSTORMS 
FOR FIRE WEATHER ZONE 476... 

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR 
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 476...

The National Weather Service in Pocatello has issued a Red Flag
Warning for gusty winds and low relative humidity, which is in
effect from noon to 9 PM MDT Thursday. The Fire Weather Watch is
no longer in effect.

* AFFECTED AREA...Fire Weather Zone 476 Lemhi and Lost River 
  Range/Challis NF.

* WINDS...For Today and Wednesday...West 10 to 20 mph with gusts 
  up to 35 mph.

* RELATIVE HUMIDITY...For Today....10 to 20 percent. For
  Thursday...7 to 17 percent.

* THUNDERSTORMS...Scattered thunderstorms especially closer to 
  the Montana border with gusts over 40 mph possible. Very 
  little precipitation is expected.

* IMPACTS...Gusty winds and low humidity will create hazardous 
  fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly based on these criteria
for Southeastern Idaho:

- Relative humidity at or below 15 percent and wind gusts of at
least 25 mph in the mountains, or 30 mph in the Snake Plain.

- Thunderstorm coverage of 25 percent, without specific rainfall
criteria.

- Other high impact events deemed critical by the National
Weather Service and area fire management agencies.

&&

$$

IDZ410-413-425-427-080300-
/O.UPG.KPIH.FW.A.0004.210708T1800Z-210709T0300Z/
/O.NEW.KPIH.FW.W.0013.210708T1800Z-210709T0300Z/
Upper Snake River Valley/Idaho Falls BLM-Caribou Range/Caribou NF-
Middle Snake River Valley/Twin Falls BLM north of the Snake River-
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
118 PM MDT Wed Jul 7 2021

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410,
413, 425 AND 427...

The National Weather Service in Pocatello has issued a Red Flag
Warning for gusty winds and low relative humidity, which is in
effect from noon to 9 PM MDT Thursday. The Fire Weather Watch is
no longer in effect.

* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River 
  Valley/Idaho Falls BLM, Fire Weather Zone 413 Caribou 
  Range/Caribou NF, Fire Weather Zone 425 Middle Snake River 
  Valley/Twin Falls BLM north of the Snake River and Fire 
  Weather Zone 427 Goose Creek and Raft River Valley/Southern 
  Sawtooth NF/Twin Falls BLM south of the Snake River.

* WINDS...West 15 to 25 mph with gusts up to 35 mph across Zone
  425 and 410. Gusts up to 30 mph.

* RELATIVE HUMIDITY...8 to 18 percent.

* IMPACTS...Gusty winds and low humidity may create hazardous 
  fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly based on these criteria
for Southeastern Idaho:

- Relative humidity at or below 15 percent and wind gusts of at
least 25 mph in the mountains, or 30 mph in the Snake Plain.

- Thunderstorm coverage of 25 percent, without specific rainfall
criteria.

- Other high impact events deemed critical by the National
Weather Service and area fire management agencies.

&&

$$

IDZ475-080300-
/O.CON.KPIH.FW.W.0012.000000T0000Z-210708T0300Z/
East Salmon River Mountains/Salmon NF-
118 PM MDT Wed Jul 7 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR GUSTY WINDS, LOW RELATIVE HUMIDITY AND SCATTERED THUNDERSTORMS 
FOR FIRE WEATHER ZONE 475...

* AFFECTED AREA...Fire Weather Zone 475 East Salmon River 
  Mountains/Salmon NF.

* WINDS...West 10 to 20 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...11 to 19 percent.

* THUNDERSTORMS...Scattered thunderstorms especially closer to the
  Montana border with gusts over 40 mph possible. A brief burst of
  rain is possible as well.

* IMPACTS...Gusty winds and low humidity may create hazardous 
  fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly based on these criteria
for Southeastern Idaho:

- Relative humidity at or below 15 percent and wind gusts of at
least 25 mph in the mountains, or 30 mph in the Snake Plain.

- Thunderstorm coverage of 25 percent, without specific rainfall
criteria.

- Other high impact events deemed critical by the National
Weather Service and area fire management agencies.

&&

$$
4 follow-up statements
087 
WWUS85 KPIH 080242
RFWPIH

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
842 PM MDT Wed Jul 7 2021

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR 
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410, 
413, 425, 427 AND 476...

IDZ476-082100-
/O.CAN.KPIH.FW.W.0012.000000T0000Z-210708T0300Z/
/O.CON.KPIH.FW.W.0013.210708T1800Z-210709T0300Z/
Lemhi and Lost River Range/Challis NF-
842 PM MDT Wed Jul 7 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM MDT
THURSDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE 
WEATHER ZONE 476...

* AFFECTED AREA...Fire Weather Zone 476 Lemhi and Lost River 
  Range/Challis NF.

* WINDS...West 10 to 20 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...As low as 10 percent.

* IMPACTS...Gusty winds and low humidity will create hazardous 
  fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly based on these criteria
for Southeastern Idaho:

- Relative humidity at or below 15 percent and wind gusts of at
least 25 mph in the mountains, or 30 mph in the Snake Plain.

- Thunderstorm coverage of 25 percent, without specific rainfall
criteria.

- Other high impact events deemed critical by the National
Weather Service and area fire management agencies.

&&

$$

IDZ422-475-080345-
/O.CAN.KPIH.FW.W.0012.000000T0000Z-210708T0300Z/
Sawtooth Range/Northern Sawtooth NF-
East Salmon River Mountains/Salmon NF-
842 PM MDT Wed Jul 7 2021

...RED FLAG WARNING IS CANCELLED FOR FOR FIRE WEATHER ZONES 422 
AND 475...

The National Weather Service in Pocatello has cancelled the Red
Flag Warning.


$$

IDZ410-413-425-427-082100-
/O.CON.KPIH.FW.W.0013.210708T1800Z-210709T0300Z/
Upper Snake River Valley/Idaho Falls BLM-Caribou Range/Caribou NF-
Middle Snake River Valley/Twin Falls BLM north of the Snake River-
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
842 PM MDT Wed Jul 7 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM MDT
THURSDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE 
WEATHER ZONES 410, 413, 425 AND 427...

* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River 
  Valley/Idaho Falls BLM, Fire Weather Zone 413 Caribou 
  Range/Caribou NF, Fire Weather Zone 425 Middle Snake River 
  Valley/Twin Falls BLM north of the Snake River and Fire 
  Weather Zone 427 Goose Creek and Raft River Valley/Southern 
  Sawtooth NF/Twin Falls BLM south of the Snake River.

* WINDS...West 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...As low as 10 percent.

* IMPACTS...Gusty winds and low humidity may create hazardous 
  fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly based on these criteria
for Southeastern Idaho:

- Relative humidity at or below 15 percent and wind gusts of at
least 25 mph in the mountains, or 30 mph in the Snake Plain.

- Thunderstorm coverage of 25 percent, without specific rainfall
criteria.

- Other high impact events deemed critical by the National
Weather Service and area fire management agencies.

&&

$$
292 
WWUS85 KPIH 080859
RFWPIH

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
259 AM MDT Thu Jul 8 2021

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410,
413, 425, 427 AND 476...

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410,
413, 425 AND 427...

IDZ410-413-425-427-090300-
/O.NEW.KPIH.FW.W.0014.210709T1800Z-210710T0300Z/
/O.CON.KPIH.FW.W.0013.210708T1800Z-210709T0300Z/
Upper Snake River Valley/Idaho Falls BLM-Caribou Range/Caribou NF-
Middle Snake River Valley/Twin Falls BLM north of the Snake River-
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
259 AM MDT Thu Jul 8 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 410, 413, 425 AND 427...
...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410,
413, 425 AND 427...

The National Weather Service in Pocatello has issued a Red Flag
Warning for gusty winds and low relative humidity, which is in
effect from noon to 9 PM MDT Friday.

* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River 
  Valley/Idaho Falls BLM, Fire Weather Zone 413 Caribou 
  Range/Caribou NF, Fire Weather Zone 425 Middle Snake River 
  Valley/Twin Falls BLM north of the Snake River and Fire 
  Weather Zone 427 Goose Creek and Raft River Valley/Southern 
  Sawtooth NF/Twin Falls BLM south of the Snake River.

* WINDS...West 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...As low as 9 percent.

* IMPACTS...Gusty winds and low humidity may create hazardous 
  fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly based on these criteria
for Southeastern Idaho:

- Relative humidity at or below 15 percent and wind gusts of at
least 25 mph in the mountains, or 30 mph in the Snake Plain.

- Thunderstorm coverage of 25 percent, without specific rainfall
criteria.

- Other high impact events deemed critical by the National
Weather Service and area fire management agencies.

&&

$$

IDZ476-090300-
/O.CON.KPIH.FW.W.0013.210708T1800Z-210709T0300Z/
Lemhi and Lost River Range/Challis NF-
259 AM MDT Thu Jul 8 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONE 476...

* AFFECTED AREA...Fire Weather Zone 476 Lemhi and Lost River 
  Range/Challis NF.

* WINDS...West 10 to 20 mph with gusts up to 30 mph.

* RELATIVE HUMIDITY...As low as 10 percent.

* IMPACTS...Gusty winds and low humidity will create hazardous 
  fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly based on these criteria
for Southeastern Idaho:

- Relative humidity at or below 15 percent and wind gusts of at
least 25 mph in the mountains, or 30 mph in the Snake Plain.

- Thunderstorm coverage of 25 percent, without specific rainfall
criteria.

- Other high impact events deemed critical by the National
Weather Service and area fire management agencies.

&&

$$
250 
WWUS85 KPIH 081836
RFWPIH

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
1236 PM MDT Thu Jul 8 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING 
FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 
410, 413, 425, 427 AND 476...

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410,
413, 425 AND 427...

IDZ410-413-425-427-090300-
/O.CON.KPIH.FW.W.0013.000000T0000Z-210709T0300Z/
/O.CON.KPIH.FW.W.0014.210709T1800Z-210710T0300Z/
Upper Snake River Valley/Idaho Falls BLM-Caribou Range/Caribou NF-
Middle Snake River Valley/Twin Falls BLM north of the Snake River-
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
1236 PM MDT Thu Jul 8 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
410, 413, 425 AND 427......RED FLAG WARNING REMAINS IN EFFECT 
FROM NOON TO 9 PM MDT FRIDAY FOR GUSTY WINDS AND LOW RELATIVE 
HUMIDITY FOR FIRE WEATHER ZONES 410, 413, 425 AND 427...

* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River 
  Valley/Idaho Falls BLM, Fire Weather Zone 413 Caribou 
  Range/Caribou NF, Fire Weather Zone 425 Middle Snake River 
  Valley/Twin Falls BLM north of the Snake River and Fire 
  Weather Zone 427 Goose Creek and Raft River Valley/Southern 
  Sawtooth NF/Twin Falls BLM south of the Snake River.

* WINDS...West 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...For Today...8 to 18 percent. For Friday...6
  to 14 percent.

* IMPACTS...Gusty winds and low humidity may create hazardous 
  fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly based on these criteria
for Southeastern Idaho:

- Relative humidity at or below 15 percent and wind gusts of at
least 25 mph in the mountains, or 30 mph in the Snake Plain.

- Thunderstorm coverage of 25 percent, without specific rainfall
criteria.

- Other high impact events deemed critical by the National
Weather Service and area fire management agencies.

&&

$$

IDZ476-090300-
/O.CON.KPIH.FW.W.0013.000000T0000Z-210709T0300Z/
Lemhi and Lost River Range/Challis NF-
1236 PM MDT Thu Jul 8 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE
476...

* AFFECTED AREA...Fire Weather Zone 476 Lemhi and Lost River 
  Range/Challis NF.

* WINDS...West 10 to 20 mph with gusts up to 30 mph.

* RELATIVE HUMIDITY...9 to 16 percent.

* IMPACTS...Gusty winds and low humidity will create hazardous 
  fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly based on these criteria
for Southeastern Idaho:

- Relative humidity at or below 15 percent and wind gusts of at
least 25 mph in the mountains, or 30 mph in the Snake Plain.

- Thunderstorm coverage of 25 percent, without specific rainfall
criteria.

- Other high impact events deemed critical by the National
Weather Service and area fire management agencies.

&&

$$
575 
WWUS85 KPIH 090302
RFWPIH

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
902 PM MDT Thu Jul 8 2021

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410,
413, 425 AND 427...

IDZ410-413-425-427-092100-
/O.EXP.KPIH.FW.W.0013.000000T0000Z-210709T0300Z/
/O.CON.KPIH.FW.W.0014.210709T1800Z-210710T0300Z/
Upper Snake River Valley/Idaho Falls BLM-Caribou Range/Caribou NF-
Middle Snake River Valley/Twin Falls BLM north of the Snake River-
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
902 PM MDT Thu Jul 8 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 9 PM MDT
FRIDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE 
WEATHER ZONES 410, 413, 425 AND 427...


* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River 
  Valley/Idaho Falls BLM, Fire Weather Zone 413 Caribou 
  Range/Caribou NF, Fire Weather Zone 425 Middle Snake River 
  Valley/Twin Falls BLM north of the Snake River and Fire 
  Weather Zone 427 Goose Creek and Raft River Valley/Southern 
  Sawtooth NF/Twin Falls BLM south of the Snake River.

* WINDS...West 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...As low as 8 percent.

* IMPACTS...Gusty winds and low humidity may create hazardous 
  fire weather conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A red flag warning means that critical fire weather conditions
are either occurring now, or will shortly based on these criteria
for Southeastern Idaho:

- Relative humidity at or below 15 percent and wind gusts of at
least 25 mph in the mountains, or 30 mph in the Snake Plain.

- Thunderstorm coverage of 25 percent, without specific rainfall
criteria.

- Other high impact events deemed critical by the National
Weather Service and area fire management agencies.

&&

$$

IDZ476-090415-
/O.EXP.KPIH.FW.W.0013.000000T0000Z-210709T0300Z/
Lemhi and Lost River Range/Challis NF-
902 PM MDT Thu Jul 8 2021

...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR 
FIRE WEATHER ZONE 476...



$$

The office that day

Everything else NWS Pocatello, ID issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 2:29 PM MDTSpecial Weather StatementPIHCassia46 min
Jul 7, 3:12 PM MDTSpecial Weather StatementPIHCamas48 min
Jul 7, 3:37 PM MDTSpecial Weather StatementPIHPower38 min
Jul 7, 4:08 PM MDTSpecial Weather StatementPIHBannock, Power37 min
Jul 7, 4:36 PM MDTSpecial Weather StatementPIHJefferson39 min
Jul 7, 4:41 PM MDTSpecial Weather StatementPIHBingham49 min
Jul 7, 5:14 PM MDTSpecial Weather StatementPIHBonneville, Jefferson46 min

Nearby

Red Flag Warnings in Idaho, 2021Every red flag warning in 2021

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.