Alert archive / Idaho / Red Flag Warnings in 2026

Red Flag Warning 9, NWS Pocatello, ID

July 7, 2026Cassia County, Twin Falls County, Idaho

NWS Pocatello, ID issued this red flag warning at Jul 7, 2026, 12:46 PM MDT for Cassia County, Twin Falls County, Idaho. It took effect at Jul 8, 2026, 1:00 PM MDT. It was in force for 7 hr. 9 reports 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
Jul 7, 2026, 12:46 PM MDT (18:46 UTC)
In effect from
Jul 8, 2026, 1:00 PM MDT
Expired
Jul 8, 2026, 8:00 PM MDT
In force
7 hr
Issued by
NWS Pocatello, ID

Counties Cassia County, ID, Twin Falls County, ID

The radar

The Pocatello radar (KSFX), 147 km from the middle of the area, began a volume at 18:48 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
Jul 8, 2:15 PM MDTTSTM WND GST 5214 Ssw Rogerson, IDMesonet station 8442 D4 - Jackpot.
Jul 8, 2:37 PM MDTTSTM WND GST 526 S Twin Falls, IDASOS station KTWF Twin Falls.
Jul 8, 2:39 PM MDTTSTM WND GST 579 W Black Pine, IDMesonet station MOFI1 Moburg Canyon.
Jul 8, 4:45 PM MDTTSTM WND GST 6614 Ese Hollister, IDMesonet station TGFI1 Trail Gulch.
Jul 8, 4:45 PM MDTTSTM WND GST 537 Nnw Idahome, IDMesonet station 3258 D4 Yale I-84.
Jul 8, 5:15 PM MDTTSTM WND GST 462 Nw Idahome, IDMesonet station MALI 2 NW Idahome.
Jul 8, 5:15 PM MDTTSTM WND GST 536 Se Albion, IDMesonet station 2983 D4 Conner Summit ID-77.
Jul 8, 6:15 PM MDTTSTM WND GST 463 E Idahome, IDMesonet station 3003 D4 Idahome Interchange I-84.
Jul 8, 6:49 PM MDTTSTM WND GST 636 S Twin Falls, IDASOS station KTWF Twin Falls.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The text

As transmitted.

189 
WWUS85 KPIH 071846
RFWPIH

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
1246 PM MDT Tue Jul 7 2026

...RED FLAG WARNING IN EFFECT FROM 2 PM TO 9 PM MDT TODAY FOR
SCATTERED THUNDERSTORMS FOR IDAHO FIRE WEATHER ZONES 413 AND
427...

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 8 PM MDT WEDNESDAY FOR
SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONE 427...

IDZ427-080300-
/O.NEW.KPIH.FW.W.0009.260708T1900Z-260709T0200Z/
/O.CON.KPIH.FW.W.0008.260707T2000Z-260708T0300Z/
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
1246 PM MDT Tue Jul 7 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONE 427...
...RED FLAG WARNING IN EFFECT FROM 1 PM TO 8 PM MDT WEDNESDAY FOR
SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONE 427...

The National Weather Service in Pocatello has issued a Red Flag
Warning for scattered thunderstorms, which is in effect from 1 PM
to 8 PM MDT Wednesday.

* AFFECTED AREA...Fire Weather Zone 427 Goose Creek and Raft 
  River Valley/Southern Sawtooth NF/Twin Falls BLM south of the 
  Snake River.

* IMPACTS...Critical fire weather conditions are expected to 
  develop Tuesday. Lightning may generate new fire starts. New 
  starts may spread rapidly.

* THUNDERSTORMS...Both wet and dry thunderstorms expected with 
  25 to 35 percent coverage.

* OUTFLOW WINDS...Gusts of 30 to 40 mph are possible.

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.

&&

$$

IDZ413-080300-
/O.CON.KPIH.FW.W.0008.260707T2000Z-260708T0300Z/
Caribou Range/Caribou NF-
1246 PM MDT Tue Jul 7 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONE 413...

* AFFECTED AREA...Fire Weather Zone 413 Caribou Range/Caribou NF.

* IMPACTS...Critical fire weather conditions are expected to 
  develop Tuesday. Lightning may generate new fire starts. New 
  starts may spread rapidly.

* THUNDERSTORMS...Both wet and dry thunderstorms expected with 
  25 to 35 percent coverage.

* OUTFLOW WINDS...Gusts of 30 to 40 mph are possible.

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.

&&

$$
3 follow-up statements
354 
WWUS85 KPIH 080349
RFWPIH

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
949 PM MDT Tue Jul 7 2026

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 8 PM MDT WEDNESDAY FOR
SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONE 427...

IDZ427-081200-
/O.CON.KPIH.FW.W.0009.260708T1900Z-260709T0200Z/
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
949 PM MDT Tue Jul 7 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 8 PM MDT
WEDNESDAY FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONE 427...

* AFFECTED AREA...Fire Weather Zone 427 Goose Creek and Raft 
  River Valley/Southern Sawtooth NF/Twin Falls BLM south of the 
  Snake River.

* IMPACTS...Critical fire weather conditions are expected to 
  develop Tuesday. Lightning may generate new fire starts. New 
  starts may spread rapidly.

* THUNDERSTORMS...Both wet and dry thunderstorms expected with 
  25 to 35 percent coverage.

* OUTFLOW WINDS...Gusts of 30 to 40 mph are possible.

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.

&&

$$
118 
WWUS85 KPIH 080804
RFWPIH

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
204 AM MDT Wed Jul 8 2026

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 8 PM MDT THIS AFTERNOON 
FOR SCATTERED THUNDERSTORMS FOR IDAHO FIRE WEATHER ZONE 427...

IDZ427-082100-
/O.CON.KPIH.FW.W.0009.260708T1900Z-260709T0200Z/
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
204 AM MDT Wed Jul 8 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE
WEATHER ZONE 427...

* AFFECTED AREA...Fire Weather Zone 427 Goose Creek and Raft 
  River Valley/Southern Sawtooth NF/Twin Falls BLM south of the 
  Snake River.

* IMPACTS...Critical fire weather conditions are expected to 
  develop Tuesday. Lightning may generate new fire starts. New 
  starts may spread rapidly.

* THUNDERSTORMS...Both wet and dry thunderstorms expected with 
  25 to 35 percent coverage.

* OUTFLOW WINDS...Gusts of 30 to 40 mph are possible.

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.

&&

$$
975 
WWUS85 KPIH 081936
RFWPIH

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
136 PM MDT Wed Jul 8 2026

...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR 
SCATTERED THUNDERSTORMS FOR IDAHO FIRE WEATHER ZONE 427...

IDZ427-090200-
/O.CON.KPIH.FW.W.0009.000000T0000Z-260709T0200Z/
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
136 PM MDT Wed Jul 8 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONE 427...

* AFFECTED AREA...Fire Weather Zone 427 Goose Creek and Raft 
  River Valley/Southern Sawtooth NF/Twin Falls BLM south of the 
  Snake River.

* IMPACTS...Critical fire weather conditions are expected to 
  develop Tuesday. Lightning may generate new fire starts. New 
  starts may spread rapidly.

* THUNDERSTORMS...Both wet and dry thunderstorms expected with 
  25 to 35 percent coverage.

* OUTFLOW WINDS...Gusts of 30 to 40 mph are possible.

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.

&&

$$

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pocatello, ID wrote its last area forecast discussion before this red flag warning went out at Jul 7, 12:28 PM MDT, 18 minutes earlier. Its key messages:

  • Showers and thunderstorms expected through tomorrow evening with gusty winds and a mix of wet and dry thunderstorms
  • Critical fire weather conditions expected this afternoon across the southern highlands along the Utah border due to thunderstorms, and potentially again Wednesday
  • Drier weather returns for the second half of the week with hot conditions likely for the weekend
Area forecast discussion, Jul 7, 12:28 PM MDT, 18 minutes before
Area Forecast Discussion
National Weather Service Pocatello ID
1228 PM MDT Tue Jul 7 2026

.KEY MESSAGES...

- Showers and thunderstorms expected through tomorrow evening
  with gusty winds and a mix of wet and dry thunderstorms

- Critical fire weather conditions expected this afternoon
  across the southern highlands along the Utah border due to
  thunderstorms, and potentially again Wednesday

- Drier weather returns for the second half of the week with hot
  conditions likely for the weekend

&&

.DISCUSSION...
Issued at 1158 AM MDT Tue Jul 7 2026

Showers and thunderstorms are still expected across two main
areas through tonight. The first is currently ongoing and should
expand in coverage is south of the Snake Plain and Magic Valley.
The expectation is to see some seepage (likely outflow-related)
into the Magic Valley and Snake Plain around Pocatello and
Blackfoot. We will see a mix of wet and dry thunderstorms with
this batch, along with a 50-90% chance of gusts of 35-55 mph.
There is a MARGINAL RISK in this area for strong winds. The
other area across the mountains from around Mackay through
Island Park. There is a 10-30% chance of gusts of 35-55 mph and
just a small chance of rain and thunder. There will likely be
outflow across other areas and MAYBE some thunderstorms
developing along those boundaries, but confidence in any one
location seeing that right now is too low to forecast. We will
This should last past midnight in some spots but pretty much
done by sunrise. Tomorrow's round is likely a little more
widespread, but the two more concentrated areas will be in the
central mountains through Island Park and higher elevations
south of the Snake Plain. The potential for strong outflow winds
is very similar to tomorrow, but increased a bit overall due to
increased coverage.

Starting Thursday and through the weekend, dry and hot
conditions are still expected. Highs by the weekend, especially
Sunday will be in the mid 90s to low 100s. The highest end
range is still pushing hotter spots closer to 105, but that is
likely a combination of full sunshine and potentially ongoing
bias with the Blend of Models in more extreme heat events. It is
something worth watching however at this point. The trend is
still showing high pressure building in, BUT the center of the
ridge may stay far enough east to allow limited monsoon moisture
arriving by Monday, and deeper moisture toward the middle of
next week. At the moment, the Blend is forecasting this type of
trend starting Monday. There is still a fairly even split on
WHEN the deeper moisture might arrive, based on where the ridge
centers itself. Half (or close to half) keep it still far enough
west to hold off until mid-week, while the rest bring it in
as soon as Monday. Daily high temperatures in that type of
pattern will be highly dependent on the amount of clouds and
storms around each day. At the moment, temperatures will likely
stay in the 90s for the most part as a general trend. Stay
tuned.

&&

.AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/...
Issued at 155 AM MDT Tue Jul 7 2026

Main concern is scattered thunderstorms this afternoon producing
strong, gusty erratic winds near TAF sites. Most sites will
carry at PROB30 this afternoon. SUN is the exception with most
models keeping convection south of them. There is a slight
chance that some showers could work in at SUN in the evening.

&&

.FIRE WEATHER...
Issued at 155 AM MDT Tue Jul 7 2026

Isolated to scattered thunderstorms are expected once again
this afternoon. Best chances are across the southern highlands
where red flag warnings are in effect. Gusty outflow winds are
likely near storms with the potential for up to 0.10 inches of
rain underneath the core of the storms.

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
Red Flag Warning until 9 PM MDT this evening for IDZ413-427.

&&

DISCUSSION...Keyes
AVIATION...GK
FIRE WEATHER...13

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 6:15 PM MDTSpecial Weather StatementPIHPower45 min
Jul 6, 7:27 PM MDTSpecial Weather StatementPIHBonneville, Jefferson, Madison63 min
Jul 6, 7:42 PM MDTSpecial Weather StatementPIHBingham48 min
Jul 7, 1:45 PM MDTSpecial Weather StatementPIHFranklin30 min
Jul 7, 4:50 PM MDTSpecial Weather StatementPIHFremont25 min

Nearby

Red Flag Warnings in Idaho, 2026Every red flag warning in 2026

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; radar from the NEXRAD Level II archive.