Alert archive / Idaho / Special Weather Statements in 2021
Special Weather Statement, NWS Spokane, WA
NWS Spokane, WA issued this special weather statement at Aug 3, 2021, 10:57 PM PDT for Latah County, Idaho. It was in force for 48 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 3, 2021, 10:57 PM PDT (05:57 UTC)
- Expired
- Aug 3, 2021, 11:45 PM PDT
- In force
- 48 min
- Issued by
- NWS Spokane, WA
County Latah County, ID
The radar
The Spokane radar (KOTX), 123 km from the middle of the area, began a volume at 05:56 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, 6.0 hours before the alert went out and 132 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
- 631 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 3157 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
629 WWUS86 KOTX 040557 SPSOTX Special Weather Statement National Weather Service Spokane WA 1057 PM PDT Tue Aug 3 2021 IDZ003-026-WAZ032-033-040645- Lewiston Area ID-Idaho Palouse ID-Washington Palouse WA- Lower Garfield and Asotin Counties WA- 1057 PM PDT Tue Aug 3 2021 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN LATAH...NORTHWESTERN NEZ PERCE...EASTERN GARFIELD AND SOUTHEASTERN WHITMAN COUNTIES UNTIL 1145 PM PDT... At 1056 PM PDT, Doppler radar was tracking a strong thunderstorm 7 miles west of Pullman, moving northeast at 20 mph. Half inch hail and winds in excess of 40 mph will be possible with this storm. Brief heavy downpours are also possible. Locations impacted include... Pullman, Moscow, Genesee, Palouse, Albion, Colton, Uniontown and Viola. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 4644 11718 4675 11746 4694 11712 4656 11676 TIME...MOT...LOC 0556Z 239DEG 19KT 4671 11731 $$ RF
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 6:13 PM PDT | Special Weather Statement | OTX | Douglas | 62 min |
| Aug 3, 6:17 PM PDT | Special Weather Statement | OTX | 73 min | |
| Aug 3, 6:58 PM PDT | Special Weather Statement | OTX | Douglas | 62 min |
| Aug 3, 8:12 PM PDT | Special Weather Statement | OTX | Okanogan | 78 min |
| Aug 4, 1:53 PM PDT | Red Flag Warning | OTX | 31 hr |
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.