Alert archive / Idaho / Special Weather Statements in 2021
Special Weather Statement, NWS Spokane, WA
NWS Spokane, WA issued this special weather statement at Aug 5, 2021, 8:12 PM PDT for Lewis County, Nez Perce County, Idaho. It was in force for 78 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 5, 2021, 8:12 PM PDT (03:12 UTC)
- Expired
- Aug 5, 2021, 9:30 PM PDT
- In force
- 78 min
- Issued by
- NWS Spokane, WA
- Hail
- 0.25 in
- Wind
- 50
Counties Lewis County, ID, Nez Perce County, ID
The radar
The Spokane radar (KOTX), 164 km from the middle of the area, began a volume at 03:15 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 00:00Z, 3.2 hours before the alert went out and 145 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
- 2910 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
004
WWUS86 KOTX 060312
SPSOTX
Special Weather Statement
National Weather Service Spokane WA
812 PM PDT Thu Aug 5 2021
IDZ003-004-026-027-WAZ031-032-060430-
Central Panhandle Mountains ID-Lewiston Area ID-Idaho Palouse ID-
Lewis and Southern Nez Perce Counties ID-Northeast Blue Mountains WA-
Lower Garfield and Asotin Counties WA-
812 PM PDT Thu Aug 5 2021
...Strong thunderstorms will impact portions of southeastern Latah,
Nez Perce, Lewis and northeastern Asotin Counties through 930 PM
PDT...
At 811 PM PDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Ski Bluewood to near Craigmont to 21 miles
east of Riggins. Movement was northeast at 40 mph.
HAZARD...Wind gusts up to 50 mph and pea 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...
Lewiston, Clarkston, Kamiah, Lapwai, Genesee, Juliaetta, Craigmont,
Nezperce, Culdesac, Winchester, Kendrick, Clarkston Heights-Vineland,
West Clarkston-Highland, Asotin, Peck, Reubens, Mohler, Spalding,
Southwick and Waha.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4635 11726 4641 11716 4641 11703 4653 11703
4672 11667 4678 11633 4664 11633 4662 11645
4650 11645 4650 11637 4641 11630 4641 11619
4630 11613 4623 11601 4621 11615 4615 11620
4620 11643 4611 11652 4611 11708
TIME...MOT...LOC 0311Z 230DEG 35KT 4610 11791 4620 11644 4540 11586
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
$$
COTEThe office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 3:41 PM PDT | Dust Storm Advisory | OTX | Adams | 2 hr |
| Aug 5, 7:17 PM PDT | Special Weather Statement | OTX | Lewis | 58 min |
Nearby
Special Weather Statements in Idaho, 2021Every special weather statement 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.