Alert archive / Idaho / Red Flag Warnings in 2021
Red Flag Warning 2, NWS Pocatello, ID
NWS Pocatello, ID issued this red flag warning at Jun 15, 2021, 9:29 AM MDT for 16 counties in Idaho. It took effect at Jun 15, 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
- Jun 15, 2021, 9:29 AM MDT (15:29 UTC)
- In effect from
- Jun 15, 2021, 12:00 PM MDT
- Expired
- Jun 15, 2021, 9:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Pocatello, ID
Counties Bannock County, ID, Bear Lake County, ID, Bingham County, ID, Bonneville County, ID, Butte County, ID, Caribou County, ID, Cassia County, ID, Clark County, ID, Franklin County, ID, Fremont County, ID, Jefferson County, ID, Madison County, ID, Oneida County, ID, Power County, ID, Teton County, ID, Twin Falls County, ID
The radar
The Pocatello radar (KSFX), 31 km from the middle of the area, began a volume at 15:33 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 12:00Z, 3.5 hours before the alert went out and 260 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
- 4455 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 216 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
983 WWUS85 KPIH 151529 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 929 AM MDT Tue Jun 15 2021 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 410, ZONE 413 BELOW 6000 FEET AND ZONE 427 BELOW 7000 FEET... IDZ410-160300- /O.NEW.KPIH.FW.W.0002.210615T1800Z-210616T0300Z/ Upper Snake River Valley/Idaho Falls BLM- 929 AM MDT Tue Jun 15 2021 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 410... The National Weather Service in Pocatello has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect until 9 PM MDT this evening. * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM. * WINDS...Southwest 15 to 25 mph with gusts of 25 to 35 mph. * RELATIVE HUMIDITY...13 to 19 percent. * IMPACTS...Strong winds and low humidity coupled with dry fuels will create critical 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. && $$ IDZ413-160300- /O.NEW.KPIH.FW.W.0002.210615T1800Z-210616T0300Z/ Caribou Range/Caribou NF- 929 AM MDT Tue Jun 15 2021 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 413 BELOW 6000 FEET... The National Weather Service in Pocatello has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect until 9 PM MDT this evening. * AFFECTED AREA...Fire Weather Zone 413 Caribou Range/Caribou NF below 6000 feet. * WINDS...Southwest 15 to 25 mph with gusts of 25 to 35 mph. * RELATIVE HUMIDITY...10 to 17 percent. * IMPACTS...Strong winds and low humidity coupled with dry fuels will create critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. - Thunderstorm coverage of 25 percent, without specific rainfall criteria. - Other high impact events deemed critical by the National Weather Service and area fire management agencies. && $$ IDZ427-160300- /O.NEW.KPIH.FW.W.0002.210615T1800Z-210616T0300Z/ Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- 929 AM MDT Tue Jun 15 2021 ...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 427 BELOW 7000 FEET... The National Weather Service in Pocatello has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect until 9 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 below 7000 feet. * WINDS...West 10 to 20 mph with gusts of 20 to 30 mph. * RELATIVE HUMIDITY...10 to 20 percent. * IMPACTS...Strong winds and low humidity coupled with dry fuels will create critical 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. && $$
1 follow-up statement
095 WWUS85 KPIH 160304 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 904 PM MDT Tue Jun 15 2021 IDZ410-160415- /O.EXP.KPIH.FW.W.0002.000000T0000Z-210616T0300Z/ Upper Snake River Valley/Idaho Falls BLM- 904 PM MDT Tue Jun 15 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 410... Gusty west southwest winds will begin to dissipate after sunset, while relative humidities start to recover with cooling temperatures. Therefore the Red Flag Warning will be allowed to expire. $$ IDZ413-160415- /O.EXP.KPIH.FW.W.0002.000000T0000Z-210616T0300Z/ Caribou Range/Caribou NF- 904 PM MDT Tue Jun 15 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 413 BELOW 6000 FEET... Winds have weakened below warning thresholds this evening and relative humidities will begin to recover as temperatures cool. Therefore the Red Flag Warning will be allowed to expire. $$ IDZ427-160415- /O.EXP.KPIH.FW.W.0002.000000T0000Z-210616T0300Z/ Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- 904 PM MDT Tue Jun 15 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 427 BELOW 7000 FEET... Winds have weakened below warning thresholds this evening and relative humidities will begin to recover as temperatures cool. Therefore the Red Flag Warning will be allowed to expire. $$
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.