Alert archive / Washington / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 7, NWS Spokane, WA
NWS Spokane, WA issued this severe thunderstorm warning at Jun 23, 2012, 9:08 AM PDT for Pend Oreille County, Stevens County, Washington. It was in force for 36 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 23, 2012, 9:08 AM PDT (16:08 UTC)
- Expired
- Jun 23, 2012, 9:44 AM PDT
- In force
- 36 min
- Issued by
- NWS Spokane, WA
- Area
- Storm-based polygon
Counties Pend Oreille County, WA, Stevens County, WA
The radar
The Spokane radar (KOTX), 136 km from the middle of the area, began a volume at 16:09 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 23, 9:10 AM PDT | HAIL 0.75 | 3 Sse Tiger, WA | |
| Jun 23, 9:14 AM PDT | HAIL 1 | 4 Ene Ione, WA | |
| Jun 23, 9:32 AM PDT | HAIL 1 | Ione, WA | NICKEL TO QUARTER SIZE HAIL OBSERVED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 4.1 hours before the alert went out and 149 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
- 779 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
797
WUUS56 KOTX 231608
SVROTX
WAC051-065-231700-
/O.NEW.KOTX.SV.W.0007.120623T1608Z-120623T1700Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPOKANE WA
908 AM PDT SAT JUN 23 2012
THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN PEND OREILLE COUNTY IN NORTHEAST WASHINGTON...
NORTHEASTERN STEVENS COUNTY IN NORTHEAST WASHINGTON...
* UNTIL 1000 AM PDT
* AT 904 AM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
TIGER...OR 35 MILES NORTH OF NEWPORT...AND MOVING NORTH AT 40 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
IONE...SULLIVAN LAKE CAMPGROUND...METALINE AND METALINE FALLS
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM WILL ALSO PRODUCE EXTREMELY HEAVY RAINFALL. IF DRIVING
THROUGH THE STORM REDUCE YOUR SPEED TO LOWER THE RISK OF
HYDROPLANING. ALSO BE PREPARED FOR PONDING OF WATER IN LOW LYING
AREAS.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 4900 11706 4860 11724 4862 11744 4900 11769
4901 11763 4901 11714
TIME...MOT...LOC 1608Z 171DEG 36KT 4870 11734
$$
SB2 follow-up statements
882
WWUS56 KOTX 231637
SVSOTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
937 AM PDT SAT JUN 23 2012
WAC051-065-231700-
/O.CON.KOTX.SV.W.0007.000000T0000Z-120623T1700Z/
PEND OREILLE WA-STEVENS WA-
937 AM PDT SAT JUN 23 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM PDT
FOR NORTHEASTERN STEVENS AND NORTHWESTERN PEND OREILLE COUNTIES...
AT 932 AM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNIE TO
QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR IONE...MOVING NORTH
AT 40 MPH.
THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HAIL UP TO DIME TO NICKEL IN DIAMETER HAS BEEN REPORTED IN TIGER
WITH THIS STORM. IF YOU ARE IN THE PATH OF THE STORM...TAKE
IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY.
&&
LAT...LON 4900 11709 4900 11708 4869 11728 4870 11742
4900 11769 4901 11763
TIME...MOT...LOC 1636Z 171DEG 36KT 4898 11741
$$
SB594
WWUS56 KOTX 231644
SVSOTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPOKANE WA
944 AM PDT SAT JUN 23 2012
WAC051-065-231653-
/O.CAN.KOTX.SV.W.0007.000000T0000Z-120623T1700Z/
PEND OREILLE WA-STEVENS WA-
944 AM PDT SAT JUN 23 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN STEVENS AND
NORTHWESTERN PEND OREILLE COUNTIES IS CANCELLED...
DOPPLER RADAR INDICATED THE STORM WAS NO LONGER SEVERE AND THE
WARNING WAS ALLOWED TO EXPIRE. .
LAT...LON 4900 11709 4900 11708 4869 11728 4870 11742
4900 11769 4901 11763
TIME...MOT...LOC 1643Z 171DEG 36KT 4905 11743
$$
SBThe office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 9:11 PM PDT | Areal Flood Advisory | OTX | Ferry, Pend Oreille, Stevens | 3 hr |
| Jun 23, 9:11 AM PDT | Severe Thunderstorm Warning | OTX | Pend Oreille, Stevens | 49 min |
| Jun 23, 10:10 AM PDT | Severe Thunderstorm Warning | OTX | Pend Oreille, Stevens | 26 min |
| Jun 23, 11:09 AM PDT | Areal Flood Advisory | OTX | Pend Oreille | 4 hr |
| Jun 23, 2:14 PM PDT | Special Weather Statement | OTX | Grant | 46 min |
| Jun 23, 3:05 PM PDT | Severe Thunderstorm Warning | OTX | Garfield, Whitman | 55 min |
Nearby
Severe Thunderstorm Warnings in Washington, 2012Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.