Alert archive / Idaho / Red Flag Warnings in 2021
Red Flag Warning 8, NWS Pocatello, ID
NWS Pocatello, ID issued this red flag warning at Jun 30, 2021, 2:12 PM MDT for 20 counties in Idaho. It took effect at Jul 1, 2021, 2:00 PM MDT. It was in force for 7 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
- Jun 30, 2021, 2:12 PM MDT (20:12 UTC)
- In effect from
- Jul 1, 2021, 2:00 PM MDT
- Expired
- Jul 1, 2021, 9:08 PM MDT
- In force
- 7 hr
- Issued by
- NWS Pocatello, ID
Counties Bannock County, ID, Bear Lake County, ID, Blaine County, ID, Boise 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, Idaho County, ID, Lemhi County, ID, Madison County, ID, Oneida County, ID, Power County, ID, Teton County, ID, Twin Falls County, ID, Valley County, ID
The radar
The Pocatello radar (KSFX), 52 km from the middle of the area, began a volume at 20:14 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, 8.2 hours before the alert went out and 254 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.
- Mixed-layer CAPE
- 21 J/kg
- Mixed-layer CIN
- -358 J/kg
- Mixed-layer LCL
- 3059 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
437 WWUS85 KPIH 302012 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 212 PM MDT Wed Jun 30 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM MDT THURSDAY FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 411, 413, 422, 475 AND 476... .Monsoonal moisture will provide thunderstorms into the weekend with red flag conditions expected in zones 411, 413, 422, 475, and 476 for scattered coverage Thursday afternoon and evening. IDZ411-413-422-475-476-011200- /O.NEW.KPIH.FW.W.0008.210701T2000Z-210702T0500Z/ Centennial Mountains and Snake River Range/Targhee NF- Caribou Range/Caribou NF-Sawtooth Range/Northern Sawtooth NF- East Salmon River Mountains/Salmon NF- Lemhi and Lost River Range/Challis NF- 212 PM MDT Wed Jun 30 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM MDT THURSDAY FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 411, 413, 422, 475 AND 476... The National Weather Service in Pocatello has issued a Red Flag Warning for scattered thunderstorms, which is in effect from 2 PM to 11 PM MDT Thursday. * AFFECTED AREA...Fire Weather Zone 411 Centennial Mountains and Snake River Range/Targhee NF, Fire Weather Zone 413 Caribou Range/Caribou NF, Fire Weather Zone 422 Sawtooth Range/Northern Sawtooth NF, Fire Weather Zone 475 East Salmon River Mountains/Salmon NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF. * IMPACTS...Both wet and dry thunderstorms are expected with scattered coverage possible. * OUTFLOW WINDS...Gusts of 35 to 45 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: - 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. && $$
2 follow-up statements
479 WWUS85 KPIH 010857 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 257 AM MDT Thu Jul 1 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 11 PM MDT THURSDAY FOR SCATTERED THUNDERSTORMS FOR IDAHO FIRE WEATHER ZONES 411, 413, 422,427,475 AND 476... .Monsoonal moisture will provide thunderstorms into the weekend with red flag conditions expected in zones 411, 413, 422, 427, 475, and 476 for scattered coverage Thursday afternoon and evening. IDZ427-020500- /O.EXA.KPIH.FW.W.0008.210701T2000Z-210702T0500Z/ Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- 257 AM MDT Thu Jul 1 2021 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR IDAHO FIRE WEATHER ZONE 427... The National Weather Service in Pocatello has issued a Red Flag Warning for scattered thunderstorms, which is in effect from 2 PM this afternoon to 11 PM MDT this evening. * AFFECTED AREA...Fire Weather Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River. * IMPACTS...Both wet and dry thunderstorms are expected with scattered coverage possible. * OUTFLOW WINDS...Gusts of 35 to 45 mph are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. - Thunderstorm coverage of 25 percent, without specific rainfall criteria. - Other high impact events deemed critical by the National Weather Service and area fire management agencies. && $$ IDZ411-413-422-475-476-020500- /O.CON.KPIH.FW.W.0008.210701T2000Z-210702T0500Z/ Centennial Mountains and Snake River Range/Targhee NF- Caribou Range/Caribou NF-Sawtooth Range/Northern Sawtooth NF- East Salmon River Mountains/Salmon NF- Lemhi and Lost River Range/Challis NF- 257 AM MDT Thu Jul 1 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR IDAHO FIRE WEATHER ZONES 411, 413, 422, 475 AND 476... * AFFECTED AREA...Fire Weather Zone 411 Centennial Mountains and Snake River Range/Targhee NF, Fire Weather Zone 413 Caribou Range/Caribou NF, Fire Weather Zone 422 Sawtooth Range/Northern Sawtooth NF, Fire Weather Zone 475 East Salmon River Mountains/Salmon NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF. * IMPACTS...Both wet and dry thunderstorms are expected with scattered coverage possible. * OUTFLOW WINDS...Gusts of 35 to 45 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: - 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. && $$ 13
869 WWUS85 KPIH 020308 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 908 PM MDT Thu Jul 1 2021 IDZ411-413-422-427-475-476-020415- /O.CAN.KPIH.FW.W.0008.000000T0000Z-210702T0500Z/ Centennial Mountains and Snake River Range/Targhee NF- Caribou Range/Caribou NF-Sawtooth Range/Northern Sawtooth NF- Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- East Salmon River Mountains/Salmon NF- Lemhi and Lost River Range/Challis NF- 908 PM MDT Thu Jul 1 2021 ...RED FLAG WARNING IS CANCELLED FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 411, 413, 422, 427, 475 AND 476... The National Weather Service in Pocatello has cancelled the Red Flag Warning. Thunderstorm activity has dissipated rapidly this evening, thus the red flag warning has been cancelled. Isolated activity may still occur tonight especially before midnight. $$
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 6:07 PM MDT | Special Weather Statement | PIH | Bonneville | 53 min |
| Jun 29, 7:05 PM MDT | Special Weather Statement | PIH | Bonneville | 40 min |
| Jun 29, 7:09 PM MDT | Special Weather Statement | PIH | Clark | 36 min |
| Jun 29, 7:21 PM MDT | Special Weather Statement | PIH | Fremont | 39 min |
| Jun 29, 7:43 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Bonneville | 33 min |
| Jun 29, 8:41 PM MDT | Special Weather Statement | PIH | Butte | 64 min |
| Jun 29, 10:48 PM MDT | Special Weather Statement | PIH | Bingham, Butte | 57 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.