Alert archive / Idaho / Red Flag Warnings in 2021
Red Flag Warning 7, NWS Pocatello, ID
NWS Pocatello, ID issued this red flag warning at Jun 25, 2021, 2:15 AM MDT for 7 counties in Idaho. It took effect at Jun 25, 2021, 12:00 PM MDT. It was in force for 9 hr. 1 report 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
- Jun 25, 2021, 2:15 AM MDT (08:15 UTC)
- In effect from
- Jun 25, 2021, 12:00 PM MDT
- Expired
- Jun 25, 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, Caribou County, ID, Franklin County, ID, Oneida County, ID, Power County, ID
The radar
The Pocatello radar (KSFX), 80 km from the middle of the area, began a volume at 08:14 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 25, 1:32 PM MDT | DEBRIS FLOW | 6 Sse Cherry Creek, ID | PUBLIC PROVIDED VIDEO OF A DEBRIS FLOW ACROSS BOTH NORTHBOUND LANES OF INTERSTATE 15 JUST NORTH OF THE UTAH BORDER WITH WATER, MUD, AND LOGS ON THE ROADWAY FROM THUNDERSTORM RUNOFF. TIME ESTIMATED BASED ON RADAR AND TIME OF VIDEO SUBMISSION. |
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, 8.3 hours before the alert went out and 202 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
- 1615 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
210 WWUS85 KPIH 250815 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 215 AM MDT Fri Jun 25 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONE 413... IDZ413-252100- /O.NEW.KPIH.FW.W.0007.210625T1800Z-210626T0300Z/ Caribou Range/Caribou NF- 215 AM MDT Fri Jun 25 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONE 413... 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 413 Caribou Range/Caribou NF. * IMPACTS...Scattered thunderstorms will produce lightning and gusty erratic winds. A mix of wet and dry thunderstorms is forecast, with some producing wetting rains over one quarter of an inch. * OUTFLOW WINDS...Gusts over 35 mph 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. && $$
2 follow-up statements
010 WWUS85 KPIH 252046 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 246 PM MDT Fri Jun 25 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONE 413... IDZ413-260300- /O.CON.KPIH.FW.W.0007.000000T0000Z-210626T0300Z/ Caribou Range/Caribou NF- 246 PM MDT Fri Jun 25 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONE 413... * AFFECTED AREA...Fire Weather Zone 413 Caribou Range/Caribou NF. * IMPACTS...Scattered thunderstorms will produce lightning and gusty erratic winds. A mix of wet and dry thunderstorms is forecast, with some producing wetting rains over one quarter of an inch. * OUTFLOW WINDS...Gusts over 35 mph possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... A red flag warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. - Thunderstorm coverage of 25 percent, without specific rainfall criteria. - Other high impact events deemed critical by the National Weather Service and area fire management agencies. && $$
354 WWUS85 KPIH 260245 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 845 PM MDT Fri Jun 25 2021 IDZ413-260345- /O.EXP.KPIH.FW.W.0007.000000T0000Z-210626T0300Z/ Caribou Range/Caribou NF- 845 PM MDT Fri Jun 25 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR FIRE WEATHER ZONE 413... Thunderstorm activity has diminished and any remaining precipiation would consist of some isolated showers. $$
The office that day
Everything else NWS Pocatello, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 12:04 PM MDT | Special Weather Statement | PIH | Bear Lake | 56 min |
| Jun 25, 1:56 PM MDT | Special Weather Statement | PIH | Teton | 49 min |
| Jun 25, 1:59 PM MDT | Lake Wind Advisory | PIH | Bannock, Bingham, Power | 31 hr |
| Jun 25, 2:47 PM MDT | Special Weather Statement | PIH | Power | 43 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.