Alert archive / Idaho / Special Weather Statements in 2022
Special Weather Statement, NWS Missoula, MT
NWS Missoula, MT issued this special weather statement at Aug 12, 2022, 12:25 PM PDT for Idaho County, Idaho. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 12, 2022, 12:25 PM PDT (19:25 UTC)
- Expired
- Aug 12, 2022, 1:00 PM PDT
- In force
- 35 min
- Issued by
- NWS Missoula, MT
- Hail
- 0.75 in
- Wind
- 40
County Idaho County, ID
The radar
The Missoula radar (KMSX), 171 km from the middle of the area, began a volume at 19:27 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
Spokane, WA (KOTX), launched 12:00Z, 7.4 hours before the alert went out and 224 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
- 504 J/kg
- Mixed-layer CIN
- -335 J/kg
- Mixed-layer LCL
- 1847 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before this special weather statement went out at Aug 12, 2:33 AM PDT, 9 hours 52 minutes earlier.
Area forecast discussion, Aug 12, 2:33 AM PDT, 9 hours 52 minutes before
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Local storm report, Aug 12, 7:27 AM PDT, 4 hours 58 minutes before
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</html>Local storm report, Aug 12, 9:10 AM PDT, 3 hours 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MISSOULA MT
1010 AM MDT FRI AUG 12 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0600 PM TSTM WND DMG WINONA 46.13N 116.11W
08/11/2022 IDAHO ID TRAINED SPOTTER
GUSTY WINDS WITH THUNDERSTORMS BROUGHT DOWN
TREES IN THE AREA. ESTIMATED PEA SIZE HAIL.
&&
KSSpecial weather statement, Aug 12, 12:01 PM PDT, 24 minutes before
Special Weather Statement
National Weather Service Missoula MT
1201 PM PDT Fri Aug 12 2022
IDZ006-008-121945-
Southern Clearwater Mountains ID-
Lower Hells Canyon/Salmon River Region ID-
1201 PM PDT Fri Aug 12 2022
...Strong thunderstorms will impact portions of southwestern Idaho
County through 1245 PM PDT...
At 1200 PM PDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles west of Imnaha to 24 miles northwest of
New Meadows. Movement was northeast at 35 mph.
HAZARD...Visibility one-half mile or less and winds in excess of 30
mph.
SOURCE...Radar indicated.
IMPACT...Low visibility could result in dangerous driving
conditions. Gusty winds could knock down tree limbs and
blow around unsecured objects. Boaters on the Snake River
and Salmon River should seek shelter now.
Locations impacted include...
Riggins, Pollock, Riggins Hot Spring and Lucile.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4534 11667 4547 11656 4551 11656 4560 11646
4569 11654 4575 11654 4578 11660 4578 11666
4581 11669 4595 11661 4539 11603 4521 11631
4527 11634 4527 11668
TIME...MOT...LOC 1900Z 219DEG 32KT 4555 11699 4512 11673
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPHSpecial weather statement, Aug 12, 12:25 PM PDT, 0 minutes before
Special Weather Statement
National Weather Service Missoula MT
1225 PM PDT Fri Aug 12 2022
IDZ006-122000-
Southern Clearwater Mountains ID-
1225 PM PDT Fri Aug 12 2022
...A strong thunderstorm will impact portions of central Idaho County
through 100 PM PDT...
At 1225 PM PDT, Doppler radar was tracking a strong thunderstorm 25
miles south of Lowell, or 35 miles east of Grangeville, moving
northeast at 35 mph.
HAZARD...Winds in excess of 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Elk City and Red River Hot Spring.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4568 11537 4580 11557 4607 11549 4587 11486
TIME...MOT...LOC 1925Z 219DEG 32KT 4580 11541
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPHThe office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 5:14 PM PDT | Special Weather Statement | MSO | 31 min | |
| Aug 11, 6:19 PM PDT | Special Weather Statement | MSO | Sanders | 26 min |
| Aug 11, 6:39 PM PDT | Special Weather Statement | MSO | Missoula | 51 min |
| Aug 11, 7:15 PM PDT | Special Weather Statement | MSO | Sanders | 30 min |
| Aug 11, 7:45 PM PDT | Special Weather Statement | MSO | Flathead | 30 min |
| Aug 12, 12:01 PM PDT | Special Weather Statement | MSO | 44 min | |
| Aug 12, 1:31 PM PDT | Special Weather Statement | MSO | Mineral | 29 min |
| Aug 12, 1:40 PM PDT | Severe Thunderstorm Warning | MSO | Mineral, Sanders | 35 min |
| Aug 12, 1:45 PM PDT | Special Weather Statement | MSO | Sanders | 45 min |
| Aug 12, 1:55 PM PDT | Special Weather Statement | MSO | Mineral | 35 min |
| Aug 12, 2:04 PM PDT | Special Weather Statement | MSO | Ravalli | 26 min |
| Aug 12, 2:08 PM PDT | Special Weather Statement | MSO | Mineral | 37 min |
| Aug 12, 2:12 PM PDT | Special Weather Statement | MSO | Lincoln | 33 min |
| Aug 12, 2:16 PM PDT | Severe Thunderstorm Warning | MSO | Flathead, Lincoln, Sanders | 29 min |
| Aug 12, 2:18 PM PDT | Special Weather Statement | MSO | Missoula | 42 min |
| Aug 12, 2:26 PM PDT | Severe Thunderstorm Warning | MSO | Mineral, Sanders | 34 min |
| Aug 12, 2:31 PM PDT | Severe Thunderstorm Warning | MSO | Mineral, Missoula, Sanders | 29 min |
| Aug 12, 2:48 PM PDT | Special Weather Statement | MSO | Lincoln | 42 min |
| Aug 12, 2:51 PM PDT | Special Weather Statement | MSO | Mineral | 39 min |
| Aug 12, 3:11 PM PDT | Special Weather Statement | MSO | Missoula | 49 min |
| Aug 12, 3:22 PM PDT | Severe Thunderstorm Warning | MSO | Deer Lodge, Granite | 53 min |
| Aug 12, 3:52 PM PDT | Special Weather Statement | MSO | Lake | 53 min |
| Aug 12, 3:55 PM PDT | Special Weather Statement | MSO | Flathead | 50 min |
| Aug 12, 4:00 PM PDT | Special Weather Statement | MSO | Missoula | 30 min |
| Aug 11, 5:05 PM PDT | Special Weather Statement | MSO | Clearwater | 25 min |
| Aug 11, 5:21 PM PDT | Special Weather Statement | MSO | Lewis | 24 min |
| Aug 11, 8:00 PM PDT | Special Weather Statement | MSO | Clearwater | 60 min |
| Aug 12, 1:08 PM PDT | Severe Thunderstorm Warning | MSO | Clearwater, Idaho | 37 min |
| Aug 12, 1:52 PM PDT | Special Weather Statement | MSO | Clearwater | 38 min |
| Aug 12, 1:54 PM PDT | Severe Thunderstorm Warning | MSO | Idaho | 28 min |
| Aug 12, 2:08 PM PDT | Severe Thunderstorm Warning | MSO | Idaho | 42 min |
| Aug 12, 2:21 PM PDT | Special Weather Statement | MSO | Lemhi | 39 min |
| Aug 12, 2:22 PM PDT | Severe Thunderstorm Warning | MSO | Clearwater, Idaho | 38 min |
| Aug 12, 2:41 PM PDT | Areal Flood Advisory | MSO | Idaho | 4 hr |
| Aug 12, 2:45 PM PDT | Severe Thunderstorm Warning | MSO | Idaho | 30 min |
| Aug 12, 3:07 PM PDT | Severe Thunderstorm Warning | MSO | Idaho | 17 min |
| Aug 12, 4:22 PM PDT | Special Weather Statement | MSO | Lemhi | 38 min |
| Aug 12, 4:31 PM PDT | Special Weather Statement | MSO | Clearwater | 29 min |
| Aug 12, 4:55 PM PDT | Special Weather Statement | MSO | Idaho | 35 min |
Nearby
Special Weather Statements in Idaho, 2022Every special weather statement in 2022
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.