Alert archive / Idaho / Red Flag Warnings in 2021
Red Flag Warning 5, NWS Pocatello, ID
NWS Pocatello, ID issued this red flag warning at Jun 23, 2021, 1:49 AM MDT for 9 counties in Idaho. It took effect at Jun 23, 2021, 12:00 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 23, 2021, 1:49 AM MDT (07:49 UTC)
- In effect from
- Jun 23, 2021, 12:00 PM MDT
- Expired
- Jun 23, 2021, 7:13 PM MDT
- In force
- 7 hr
- Issued by
- NWS Pocatello, ID
Counties Bannock County, ID, Bear Lake County, ID, Bonneville County, ID, Caribou County, ID, Cassia County, ID, Franklin County, ID, Oneida County, ID, Power County, ID, Twin Falls County, ID
The radar
The Pocatello radar (KSFX), 66 km from the middle of the area, began a volume at 07:51 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
Salt Lake City I, UT (KSLC), launched 00:00Z, 7.8 hours before the alert went out and 201 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 5119 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
950 WWUS85 KPIH 230749 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 149 AM MDT Wed Jun 23 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 413 AND 427... IDZ413-427-232100- /O.UPG.KPIH.FW.A.0002.210623T1800Z-210624T0300Z/ /O.NEW.KPIH.FW.W.0005.210623T1800Z-210624T0300Z/ Caribou Range/Caribou NF- Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- 149 AM MDT Wed Jun 23 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 413 AND 427... The National Weather Service in Pocatello has issued a Red Flag Warning for scattered thunderstorms, which is in effect from noon today to 9 PM MDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 413 Caribou Range/Caribou NF and Fire Weather Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River. * IMPACTS...Scattered thunderstorms will produce lightning and gusty erratic winds. Most thunderstorms will be dry with no wetting rains, but a few thunderstorms may produce a wetting rain. * OUTFLOW WINDS...Gusts over 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. && $$
2 follow-up statements
731 WWUS85 KPIH 232004 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 204 PM MDT Wed Jun 23 2021 IDZ413-427-240300- /O.CON.KPIH.FW.W.0005.000000T0000Z-210624T0300Z/ Caribou Range/Caribou NF- Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- 204 PM MDT Wed Jun 23 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 413 AND 427... * AFFECTED AREA...Fire Weather Zone 413 covering the Caribou Range/Caribou NF, and Fire Weather Zone 427 covering Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River. * IMPACTS...Scattered thunderstorms will produce lightning and gusty erratic winds. Most thunderstorms will be dry with no wetting rains, but a few thunderstorms may be capable of producing a wetting rain. * OUTFLOW WINDS...Gusts over 40 MPH are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly based on any one or more of these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 MPH in the mountains or 30 MPH in the Snake Plain. - Thunderstorm coverage of 25 percent or greater, without specific rainfall criteria. - Other high impact events deemed critical by the National Weather Service and area fire management agencies. && $$ KSmith
989 WWUS85 KPIH 240113 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 713 PM MDT Wed Jun 23 2021 ...RED FLAG WARNING FOR TONIGHT IS CANCELLED FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 413 AND 427... ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 411, 413 AND 427... IDZ413-427-241115- /O.CAN.KPIH.FW.W.0005.000000T0000Z-210624T0300Z/ /O.NEW.KPIH.FW.W.0006.210624T1800Z-210625T0300Z/ Caribou Range/Caribou NF- Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- 713 PM MDT Wed Jun 23 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 413 AND 427... ...RED FLAG WARNING IS CANCELLED FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 413 AND 427... The National Weather Service in Pocatello has issued a Red Flag Warning for scattered thunderstorms, which is in effect from noon to 9 PM MDT Thursday. The Red Flag Warning has been cancelled. * AFFECTED AREA...Fire Weather Zone 413 Caribou Range/Caribou NF and Fire Weather Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River. * IMPACTS...Scattered thunderstorms will produce lightning and gusty erratic winds. A mix of wet and dry thunderstorms is forecast. * OUTFLOW WINDS...Gusts over 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. && $$ IDZ411-241115- /O.NEW.KPIH.FW.W.0006.210624T1800Z-210625T0300Z/ Centennial Mountains and Snake River Range/Targhee NF- 713 PM MDT Wed Jun 23 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONE 411... The National Weather Service in Pocatello has issued a Red Flag Warning for scattered thunderstorms, which is in effect from noon to 9 PM MDT Thursday. * AFFECTED AREA...Fire Weather Zone 411 Centennial Mountains and Snake River Range/Targhee NF. * IMPACTS...Scattered thunderstorms will produce lightning and gusty erratic winds. A mix of wet and dry thunderstorms is forecast. * OUTFLOW WINDS...Gusts over 40 MPH are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. - Thunderstorm coverage of 25 percent, without specific rainfall criteria. - Other high impact events deemed critical by the National Weather Service and area fire management agencies. && $$
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 8:23 PM MDT | Special Weather Statement | PIH | Blaine, Butte, Clark, Jefferson | 82 min |
| Jun 22, 9:40 PM MDT | Special Weather Statement | PIH | Jefferson | 50 min |
| Jun 23, 3:30 PM MDT | Special Weather Statement | PIH | Butte | 45 min |
| Jun 23, 4:57 PM MDT | Special Weather Statement | PIH | Jefferson | 93 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.