Alert archive / Idaho / Red Flag Warnings in 2019
Red Flag Warning 21, NWS Pocatello, ID
NWS Pocatello, ID issued this red flag warning at Aug 23, 2019, 1:35 PM MDT for 20 counties in Idaho. It took effect at Aug 25, 2019, 1:00 PM MDT. It was in force for 8 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
- Aug 23, 2019, 1:35 PM MDT (19:35 UTC)
- In effect from
- Aug 25, 2019, 1:00 PM MDT
- Expired
- Aug 25, 2019, 9:00 PM MDT
- In force
- 8 hr
- Issued by
- NWS Pocatello, ID
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, Franklin County, ID, Fremont County, ID, Jefferson County, ID, Jerome 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), 5 km from the middle of the area, began a volume at 19:35 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, 7.6 hours before the alert went out and 263 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
- 3052 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
455 WWUS85 KPIH 231935 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 135 PM MDT Fri Aug 23 2019 ...Dry cold front approaching on Sunday brings critical wind and humidity on Saturday and Sunday afternoon... .A front that will start to increase wind on Saturday will cross through sometime on Sunday. As it approaches, temperatures will spike in the Snake River plain and eastern Magic Valley to near 90 degrees. This will drop afternoon humidity to the mid-teens at low elevations. The combination of wind and low humidity will bring fire danger to critical levls. IDZ410-425-240345- /O.UPG.KPIH.FW.A.0006.190824T2100Z-190825T0300Z/ /O.NEW.KPIH.FW.W.0020.190824T2100Z-190825T0300Z/ /O.NEW.KPIH.FW.W.0021.190825T1900Z-190826T0300Z/ Upper Snake River Valley/Idaho Falls BLM- Middle Snake River Valley/Twin Falls BLM north of the Snake River- 135 PM MDT Fri Aug 23 2019 ...RED FLAG WARNING IN EFFECT FROM 3 PM TO 9 PM MDT SATURDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM MDT SUNDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... The National Weather Service in Pocatello has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 3 PM to 9 PM MDT Saturday. A Red Flag Warning has also been issued from 1 PM to 9 PM MDT Sunday. * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM and Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River. * WINDS...Southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...13 to 15 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. 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. && Messick $$
8 follow-up statements
751 WWUS85 KPIH 231936 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 136 PM MDT Fri Aug 23 2019 ...Dry cold front approaching on Sunday brings critical wind and humidity on Saturday and Sunday afternoon... .A front that will start to increase wind on Saturday will cross through sometime on Sunday. As it approaches, temperatures will spike in the Snake River plain and eastern Magic Valley to near 90 degrees. This will drop afternoon humidity to the mid-teens at low elevations. The combination of wind and low humidity will bring fire danger to critical levls. IDZ410-425-241100- /O.CON.KPIH.FW.W.0020.190824T2100Z-190825T0300Z/ /O.CON.KPIH.FW.W.0021.190825T1900Z-190826T0300Z/ Upper Snake River Valley/Idaho Falls BLM- Middle Snake River Valley/Twin Falls BLM north of the Snake River- 136 PM MDT Fri Aug 23 2019 ...RED FLAG WARNING REMAINS IN EFFECT FROM 3 PM TO 9 PM MDT SATURDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM MDT SUNDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM and Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River. * WINDS...Southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...13 to 15 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. && Messick $$
624 WWUS85 KPIH 240830 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 230 AM MDT Sat Aug 24 2019 IDZ410-425-242100- /O.CON.KPIH.FW.W.0020.190824T2100Z-190825T0300Z/ /O.CON.KPIH.FW.W.0021.190825T1900Z-190826T0300Z/ Upper Snake River Valley/Idaho Falls BLM- Middle Snake River Valley/Twin Falls BLM north of the Snake River- 230 AM MDT Sat Aug 24 2019 ...RED FLAG WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM MDT SUNDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM and Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River. * WINDS...Southwest to west 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...Widespread 10 to 15 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are expected for Southeastern Idaho including: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. && $$
101 WWUS85 KPIH 242003 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 203 PM MDT Sat Aug 24 2019 ...Lower elevations in the Caribou NF area added to Warning... .An extremely dry cold front is expected to sweep through central and eastern Idaho on Sunday. On its approach this late afternoon and evening, this front will increase the wind and dry out the air to the point where critical fire weather conditions will be reached at many low elevation locations. The front passes through Sunday, bringing even stronger wind and continuing the very low humidity due to the level of dryness with this front. Cooler air behind the front on Monday should bring the humidity back up. IDZ413-250415- /O.EXB.KPIH.FW.W.0021.190825T2100Z-190826T0300Z/ Caribou Range/Caribou NF- 203 PM MDT Sat Aug 24 2019 ...RED FLAG WARNING IN EFFECT FROM 3 PM TO 9 PM MDT SUNDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 413 BELOW 5800 FEET ELEVATION... The National Weather Service in Pocatello has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 3 PM to 9 PM MDT Sunday. * AFFECTED AREA...Fire Weather Zone 413 Caribou Range/Caribou NF where elevation is below 5800 feet. This includes much of the Portneuf River Valley, the Rockland Valley, The Malad River Valley, and the Bear River Valley where it flows through the town of Preston. * WINDS...Southwest to west 15 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...Widespread 10 to 15 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are expected for Southeastern Idaho: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. && $$ IDZ410-425-250415- /O.CON.KPIH.FW.W.0020.190824T2100Z-190825T0300Z/ /O.CON.KPIH.FW.W.0021.190825T1900Z-190826T0300Z/ Upper Snake River Valley/Idaho Falls BLM- Middle Snake River Valley/Twin Falls BLM north of the Snake River- 203 PM MDT Sat Aug 24 2019 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM MDT SUNDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM and Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River. * WINDS...Southwest to west 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...Widespread 10 to 15 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are expected for Southeastern Idaho including: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. && Messick $$
193 WWUS85 KPIH 242043 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 243 PM MDT Sat Aug 24 2019 ...Lower elevations in the Caribou NF area added to Warning... .An extremely dry cold front is expected to sweep through central and eastern Idaho on Sunday. On its approach this late afternoon and evening, this front will increase the wind and dry out the air to the point where critical fire weather conditions will be reached at many low elevation locations. The front passes through Sunday, bringing even stronger wind and continuing the very low humidity due to the level of dryness with this front. Cooler air behind the front on Monday should bring the humidity back up. IDZ410-425-251300- /O.CON.KPIH.FW.W.0020.190824T2100Z-190825T0300Z/ /O.CON.KPIH.FW.W.0021.190825T1900Z-190826T0300Z/ Upper Snake River Valley/Idaho Falls BLM- Middle Snake River Valley/Twin Falls BLM north of the Snake River- 243 PM MDT Sat Aug 24 2019 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM MDT SUNDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM and Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River. * WINDS...Southwest to west 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...Widespread 10 to 15 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are expected for Southeastern Idaho including: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. && Messick $$ IDZ413-251300- /O.CON.KPIH.FW.W.0021.190825T2100Z-190826T0300Z/ Caribou Range/Caribou NF- 243 PM MDT Sat Aug 24 2019 ...RED FLAG WARNING REMAINS IN EFFECT FROM 3 PM TO 9 PM MDT SUNDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 413 BELOW 5800 FEET ELEVATION... * AFFECTED AREA...Fire Weather Zone 413 Caribou Range/Caribou NF. * WINDS...Southwest to west 15 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...Widespread 10 to 15 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are expected for Southeastern Idaho: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. A red flag warning means that critical fire weather conditions are either occurring now, or will shortly. && Messick $$
451 WWUS85 KPIH 250246 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 846 PM MDT Sat Aug 24 2019 ...Strong winds forecast for Sunday... .An extremely dry cold front is expected to sweep through central and eastern Idaho on Sunday. On its approach this late afternoon and evening, this front will increase the wind and dry out the air to the point where critical fire weather conditions will be reached at many low elevation locations. The front passes through Sunday, bringing even stronger wind and continuing the very low humidity due to the level of dryness with this front. Cooler air behind the front on Monday should bring the humidity back up. IDZ410-425-251000- /O.EXP.KPIH.FW.W.0020.000000T0000Z-190825T0300Z/ /O.CON.KPIH.FW.W.0021.190825T1900Z-190826T0300Z/ Upper Snake River Valley/Idaho Falls BLM- Middle Snake River Valley/Twin Falls BLM north of the Snake River- 846 PM MDT Sat Aug 24 2019 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM MDT SUNDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM and Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River. * WINDS...West 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly based on the following conditions: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. && NP $$ IDZ413-251000- /O.CON.KPIH.FW.W.0021.190825T2100Z-190826T0300Z/ Caribou Range/Caribou NF- 846 PM MDT Sat Aug 24 2019 ...RED FLAG WARNING REMAINS IN EFFECT FROM 3 PM TO 9 PM MDT SUNDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 413 BELOW 5800 FEET ELEVATION... * AFFECTED AREA...Fire Weather Zone 413 Caribou Range/Caribou NF. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are expected for Southeastern Idaho based on the following conditions: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. && NP $$
187 WWUS85 KPIH 250819 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 219 AM MDT Sun Aug 25 2019 IDZ427-252100- /O.EXA.KPIH.FW.W.0021.190825T1900Z-190826T0300Z/ Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- 219 AM MDT Sun Aug 25 2019 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 427 BELOW 7000 FEET ELEVATION... The National Weather Service in Pocatello has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 1 PM this afternoon to 9 PM MDT this evening. * AFFECTED AREA...Fire Weather Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River below 7000 feet MSL. * WINDS...West 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...13 to 18 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly based on the following conditions: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. && $$ IDZ413-252100- /O.EXT.KPIH.FW.W.0021.190825T1900Z-190826T0300Z/ Caribou Range/Caribou NF- 219 AM MDT Sun Aug 25 2019 ...RED FLAG WARNING NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 413 BELOW 5800 FEET ELEVATION... * AFFECTED AREA...Fire Weather Zone 413 Caribou Range/Caribou NF below 5800 feet MSL. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...13 to 18 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are expected for Southeastern Idaho based on the following conditions: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. && $$ IDZ410-425-252100- /O.CON.KPIH.FW.W.0021.190825T1900Z-190826T0300Z/ Upper Snake River Valley/Idaho Falls BLM- Middle Snake River Valley/Twin Falls BLM north of the Snake River- 219 AM MDT Sun Aug 25 2019 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM and Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River. * WINDS...West 15 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...13 to 18 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly based on the following conditions: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. && $$
416 WWUS85 KPIH 251858 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 1258 PM MDT Sun Aug 25 2019 ...Dry cold front pushing through southern Idaho today... At 100 pm PDT, weather observations around eastern Idaho indicated that wind gusts up to 44 mph had already started, and it should be only a matter of an hour or two before humidity falls below the 15 percent threshold that changes fire behavior dramatically. IDZ410-425-260300- /O.CON.KPIH.FW.W.0021.190825T1900Z-190826T0300Z/ Upper Snake River Valley/Idaho Falls BLM- Middle Snake River Valley/Twin Falls BLM north of the Snake River- 1258 PM MDT Sun Aug 25 2019 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM and Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River. * WINDS...West 15 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...13 to 15 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly based on the following conditions: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. && $$ IDZ413-260300- /O.CON.KPIH.FW.W.0021.190825T1900Z-190826T0300Z/ Caribou Range/Caribou NF- 1258 PM MDT Sun Aug 25 2019 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 413 BELOW 5800 FEET ELEVATION... * AFFECTED AREA...Fire Weather Zone 413 Caribou Range/Caribou NF. * WINDS...West 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...13 to 15 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are expected for Southeastern Idaho based on the following conditions: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. && $$ IDZ427-260300- /O.CON.KPIH.FW.W.0021.190825T1900Z-190826T0300Z/ Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- 1258 PM MDT Sun Aug 25 2019 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 427 BELOW 7000 FEET ELEVATION... * AFFECTED AREA...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...13 to 15 percent. * IMPACTS...Once a fire starts, fast fire spread rates and high intensity fires are likely to result. * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly based on the following conditions: * Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, and/or 30 mph in the Snake Plain. && Messick $$
870 WWUS85 KPIH 260258 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 858 PM MDT Sun Aug 25 2019 IDZ410-425-260400- /O.EXP.KPIH.FW.W.0021.000000T0000Z-190826T0300Z/ Upper Snake River Valley/Idaho Falls BLM- Middle Snake River Valley/Twin Falls BLM north of the Snake River- 858 PM MDT Sun Aug 25 2019 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 425... Relative humidities have recovered to above critical levels and winds will continue to gradually dissipate this evening. Thus the Red Flag Warning will be allowed to expire at 9 PM MDT. $$ IDZ413-260400- /O.EXP.KPIH.FW.W.0021.000000T0000Z-190826T0300Z/ Caribou Range/Caribou NF- 858 PM MDT Sun Aug 25 2019 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 413... Relative humidities have recovered to above critical levels and winds will continue to gradually dissipate this evening. Thus the Red Flag Warning will be allowed to expire at 9 PM MDT. $$ IDZ427-260400- /O.EXP.KPIH.FW.W.0021.000000T0000Z-190826T0300Z/ Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- 858 PM MDT Sun Aug 25 2019 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 427... Relative humidities have recovered to above critical levels and winds will continue to gradually dissipate this evening. Thus the Red Flag Warning will be allowed to expire at 9 PM MDT. $$ KB
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 1:35 PM MDT | Red Flag Warning | PIH | Bingham, Blaine, Bonneville, Butte, Clark, Fremont and 7 more | 31 hr |
Nearby
Red Flag Warnings in Idaho, 2019Every red flag warning in 2019
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.