Alert archive / Idaho / Red Flag Warnings in 2021
Red Flag Warning 11, NWS Pocatello, ID
NWS Pocatello, ID issued this red flag warning at Jul 5, 2021, 2:02 AM MDT for 14 counties in Idaho. It took effect at Jul 5, 2021, 12:00 PM MDT. It was in force for 9 hr. 6 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 5, 2021, 2:02 AM MDT (08:02 UTC)
- In effect from
- Jul 5, 2021, 12:00 PM MDT
- Expired
- Jul 5, 2021, 9:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Pocatello, ID
Counties Bannock County, ID, Bear Lake County, ID, Bonneville County, ID, Butte County, ID, Caribou County, ID, Clark County, ID, Custer County, ID, Franklin County, ID, Fremont County, ID, Lemhi County, ID, Madison County, ID, Oneida County, ID, Power County, ID, Teton County, ID
The radar
The Pocatello radar (KSFX), 44 km from the middle of the area, began a volume at 08:01 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 5, 3:13 PM MDT | HEAVY RAIN 0.54 | Downey, ID | MEASURED IN 8 MINUTES TIME. |
| Jul 5, 4:00 PM MDT | HEAVY RAIN 0.37 | 2 Nne Fish Haven, ID | PUBLIC WEATHER STATION. |
| Jul 5, 7:00 PM MDT | HEAVY RAIN 0.4 | 2 Nne Fish Haven, ID | PUBLIC WEATHER STATION. |
| Jul 5, 8:00 PM MDT | TSTM WND GST 55 | 5 Nne Dubois, ID | MESONET STATION DUB. |
| Jul 5, 8:10 PM MDT | HAIL 0.25 | 6 Nne Dubois, ID | PEA SIZE HAIL COVERING THE GROUND AND MINOR FLOODING. |
| Jul 5, 9:00 PM MDT | HEAVY RAIN 0.29 | 5 Nne Dubois, ID | MESONET STATION DUB. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Salt Lake City I, UT (KSLC), launched 00:00Z, 8.0 hours before the alert went out and 289 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
- 254 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 3566 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
717 WWUS85 KPIH 050802 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 202 AM MDT Mon Jul 5 2021 IDZ411-413-476-060300- /O.CAN.KPIH.FW.W.0010.000000T0000Z-210706T0300Z/ /O.NEW.KPIH.FW.W.0011.210705T1800Z-210706T0300Z/ Centennial Mountains and Snake River Range/Targhee NF- Caribou Range/Caribou NF-Lemhi and Lost River Range/Challis NF- 202 AM MDT Mon Jul 5 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 411, 413 AND 476... 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. * AFFECTED AREA...Fire Weather Zone 411 Centennial Mountains and Snake River Range/Targhee NF, Fire Weather Zone 413 Caribou Range/Caribou NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF. * IMPACTS...Scattered thunderstorms may produce new fire starts. Gusty and erratic outflow winds may create hazardous fire weather conditions. * OUTFLOW WINDS...Gusts of 45 to 50 mph are possible near stronger storms. * THUNDERSTORMS... PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning for thunderstorms means that coverage of 25 percent or more is expected without specific rainfall criteria. && $$ IDZ410-422-425-427-050915- /O.CAN.KPIH.FW.W.0010.000000T0000Z-210706T0300Z/ Upper Snake River Valley/Idaho Falls BLM- Sawtooth Range/Northern Sawtooth NF- Middle Snake River Valley/Twin Falls BLM north of the Snake River- Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- 202 AM MDT Mon Jul 5 2021 ...RED FLAG WARNING IS CANCELLED FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 410, 422, 425 AND 427... The National Weather Service in Pocatello has cancelled the Red Flag Warning. $$
2 follow-up statements
483 WWUS85 KPIH 052005 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 205 PM MDT Mon Jul 5 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 411, 413 AND 476... IDZ411-413-476-060300- /O.CON.KPIH.FW.W.0011.000000T0000Z-210706T0300Z/ Centennial Mountains and Snake River Range/Targhee NF- Caribou Range/Caribou NF-Lemhi and Lost River Range/Challis NF- 205 PM MDT Mon Jul 5 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 411, 413 AND 476... * AFFECTED AREA...Fire Weather Zone 411 Centennial Mountains and Snake River Range/Targhee NF, Fire Weather Zone 413 Caribou Range/Caribou NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF. * IMPACTS...Scattered thunderstorms may produce new fire starts. Gusty and erratic outflow winds may create hazardous fire weather conditions. * OUTFLOW WINDS...Gusts over 35 mph are possible near stronger storms. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning for thunderstorms means that coverage of 25 percent or more is expected without specific rainfall criteria. && $$
589 WWUS85 KPIH 060254 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 854 PM MDT Mon Jul 5 2021 IDZ411-413-476-060400- /O.EXP.KPIH.FW.W.0011.000000T0000Z-210706T0300Z/ Centennial Mountains and Snake River Range/Targhee NF- Caribou Range/Caribou NF-Lemhi and Lost River Range/Challis NF- 854 PM MDT Mon Jul 5 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 411, 413 AND 476... Only a few very isolated showers and storms remain across the area this evening and these are expected to dissipate over the next hour or two. Therefore, the red flag warning will be allowed to expire. $$
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 7:48 PM MDT | Special Weather Statement | PIH | Lincoln, Minidoka | 42 min |
| Jul 4, 8:38 PM MDT | Special Weather Statement | PIH | Minidoka, Power | 37 min |
| Jul 5, 12:44 PM MDT | Special Weather Statement | PIH | Bonneville | 61 min |
| Jul 5, 2:02 PM MDT | Excessive Heat Warning | PIH | Blaine, Cassia, Lincoln, Minidoka, Power | 58 hr |
| Jul 5, 2:02 PM MDT | Heat Advisory | PIH | Bannock, Bingham, Bonneville, Butte, Caribou, Cassia and 6 more | 3 days |
| Jul 5, 3:03 PM MDT | Special Weather Statement | PIH | Bear Lake | 72 min |
| Jul 5, 3:12 PM MDT | Areal Flood Advisory | PIH | Bannock | 2 hr |
| Jul 5, 3:27 PM MDT | Special Weather Statement | PIH | Franklin | 48 min |
| Jul 5, 3:29 PM MDT | Areal Flood Advisory | PIH | Franklin | 2 hr |
| Jul 5, 3:56 PM MDT | Special Weather Statement | PIH | Butte | 49 min |
| Jul 5, 5:03 PM MDT | Special Weather Statement | PIH | Bingham | 42 min |
| Jul 5, 5:33 PM MDT | Special Weather Statement | PIH | Bingham, Power | 42 min |
| Jul 5, 5:40 PM MDT | Severe Thunderstorm Warning | PIH | Bingham | 35 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.