Alert archive / Washington / Special Weather Statements in 2012
Special Weather Statement, NWS Spokane, WA
NWS Spokane, WA issued this special weather statement at Jul 15, 2012, 11:21 AM PDT for Okanogan County, Washington. It was in force for 39 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
- Jul 15, 2012, 11:21 AM PDT (18:21 UTC)
- Expired
- Jul 15, 2012, 12:00 PM PDT
- In force
- 39 min
- Issued by
- NWS Spokane, WA
County Okanogan County, WA
The radar
The Spokane radar (KOTX), 186 km from the middle of the area, began a volume at 18:21 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, 6.4 hours before the alert went out and 266 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
- 305 J/kg
- Mixed-layer CIN
- -99 J/kg
- Mixed-layer LCL
- 1372 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- -2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
469
WWUS86 KOTX 151821
SPSOTX
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
1121 AM PDT SUN JUL 15 2012
WAZ042-043-151900-
OKANOGAN WA-
1121 AM PDT SUN JUL 15 2012
THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY FOR...
CENTRAL OKANOGAN COUNTY IN NORTH CENTRAL WASHINGTON
UNTIL NOON PDT
AT 1116 AM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORMS NEAR CONCONULLY...TWISP...AND WINTHROP..MOVING
NORTHEAST AT 20 MPH.
HAIL UP TO THE SIZE OF PENNIES IS EXPECTED WITH THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
CONCONULLY...
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
LAT...LON 4871 11937 4863 11939 4824 11989 4837 12026
4896 12003
TIME...MOT...LOC 1821Z 213DEG 15KT 4851 11990
$$
RPThe office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 6:00 PM PDT | Areal Flood Advisory | OTX | Douglas, Grant | 45 min |
| Jul 14, 7:55 PM PDT | Special Weather Statement | OTX | Whitman | 35 min |
| Jul 14, 8:30 PM PDT | Special Weather Statement | OTX | Whitman | 45 min |
| Jul 14, 8:36 PM PDT | Areal Flood Advisory | OTX | Adams, Lincoln | 2 hr |
| Jul 14, 9:44 PM PDT | Flash Flood Watch | OTX | Ferry, Lincoln, Okanogan, Pend Oreille, Spokane, Stevens | 24 hr |
| Jul 15, 11:13 AM PDT | Special Weather Statement | OTX | Okanogan | 47 min |
| Jul 15, 12:20 PM PDT | Areal Flood Advisory | OTX | Okanogan | 3 hr |
| Jul 15, 1:29 PM PDT | Severe Thunderstorm Warning | OTX | Ferry, Okanogan | 46 min |
| Jul 15, 1:56 PM PDT | Areal Flood Advisory | OTX | Chelan, Douglas, Ferry, Okanogan | 5 hr |
| Jul 15, 2:11 PM PDT | Severe Thunderstorm Warning | OTX | Ferry | 49 min |
| Jul 15, 2:38 PM PDT | Severe Thunderstorm Warning | OTX | Okanogan | 36 min |
| Jul 15, 2:42 PM PDT | Special Weather Statement | OTX | Lewis | 48 min |
| Jul 15, 2:45 PM PDT | Special Weather Statement | OTX | Nez Perce | 30 min |
| Jul 15, 3:15 PM PDT | Special Weather Statement | OTX | Nez Perce | 45 min |
Nearby
Special Weather Statements in Washington, 2012Every special weather statement in 2012
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.