Alert archive / Washington / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 8, NWS Spokane, WA
NWS Spokane, WA issued this severe thunderstorm warning at Jun 23, 2012, 9:11 AM PDT for Pend Oreille County, Stevens County, Washington. It was in force for 49 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, 9:11 AM PDT (16:11 UTC)
- Expired
- Jun 23, 2012, 10:00 AM PDT
- In force
- 49 min
- Issued by
- NWS Spokane, WA
- Area
- Storm-based polygon
Counties Pend Oreille County, WA, Stevens County, WA
The radar
The Spokane radar (KOTX), 90 km from the middle of the area, began a volume at 16:14 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, 9:12 AM PDT | HAIL 0.88 | 4 W Newport, WA | 0.25 INCHES OF RAIN IN ABOUT 20 MINUTES |
| Jun 23, 9:55 AM PDT | HAIL 1 | 3 S Ruby, WA | |
| Jun 23, 10:08 AM PDT | HAIL 0.75 | 4 Nw Ruby, WA |
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, 4.2 hours before the alert went out and 110 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.
780 WUUS56 KOTX 231611 SVROTX WAC051-065-231700- /O.NEW.KOTX.SV.W.0008.120623T1611Z-120623T1700Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SPOKANE WA 911 AM PDT SAT JUN 23 2012 THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL PEND OREILLE COUNTY IN NORTHEAST WASHINGTON... EAST CENTRAL STEVENS COUNTY IN NORTHEAST WASHINGTON... * UNTIL 1000 AM PDT * AT 909 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 DIAMOND LAKE...OR NEAR NEWPORT...AND MOVING NORTH AT 40 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BEAD LAKE CAMPGROUND...USK...CUSICK...SOUTH SKOOKUM LAKE CAMPGROUND... BROWNS LAKE CAMPGROUND...RUBY...LITTLE PEND OREILLE LAKES CAMPGROUND AND TIGER 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 4867 11765 4875 11706 4813 11706 4811 11727 TIME...MOT...LOC 1612Z 169DEG 37KT 4821 11716 $$ SB
4 follow-up statements
566 WWUS56 KOTX 231631 SVSOTX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 931 AM PDT SAT JUN 23 2012 WAC051-065-231700- /O.CON.KOTX.SV.W.0008.000000T0000Z-120623T1700Z/ PEND OREILLE WA-STEVENS WA- 931 AM PDT SAT JUN 23 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM PDT FOR EAST CENTRAL STEVENS AND CENTRAL PEND OREILLE COUNTIES... AT 928 AM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR SOUTH SKOOKUM LAKE CAMPGROUND...OR 15 MILES NORTHWEST OF NEWPORT...MOVING NORTH AT 45 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BROWNS LAKE CAMPGROUND...RUBY...LITTLE PEND OREILLE LAKES CAMPGROUND AND TIGER. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. HAIL UP TO NICKELS IN DIAMETER HAS BEEN REPORTED NORTHEAST OF DIAMOND LAKE WITH THIS STORM. IF YOU ARE IN THE PATH OF THE STORM...TAKE IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY. && LAT...LON 4828 11711 4825 11733 4867 11765 4875 11706 TIME...MOT...LOC 1629Z 169DEG 37KT 4838 11721 $$ SB
768 WWUS56 KOTX 231653 SVSOTX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 953 AM PDT SAT JUN 23 2012 WAC051-065-231700- /O.CON.KOTX.SV.W.0008.000000T0000Z-120623T1700Z/ PEND OREILLE WA-STEVENS WA- 953 AM PDT SAT JUN 23 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM PDT FOR EAST CENTRAL STEVENS AND CENTRAL PEND OREILLE COUNTIES... AT 951 AM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND WIND GUSTS IN EXCESS OF 45 MPH. THIS STORM WAS LOCATED 6 MILES NORTH OF RUBY...OR 31 MILES NORTH OF NEWPORT...MOVING NORTH AT 45 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LITTLE PEND OREILLE LAKES CAMPGROUND AND TIGER. 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. && LAT...LON 4842 11722 4839 11732 4867 11765 4874 11712 TIME...MOT...LOC 1653Z 169DEG 37KT 4862 11728 $$ SB
006 WWUS56 KOTX 231659 SVSOTX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 959 AM PDT SAT JUN 23 2012 WAC051-065-231708- /O.EXP.KOTX.SV.W.0008.000000T0000Z-120623T1700Z/ PEND OREILLE WA-STEVENS WA- 959 AM PDT SAT JUN 23 2012 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL STEVENS AND CENTRAL PEND OREILLE COUNTIES WILL EXPIRE AT 1000 AM PDT... DOPPLER RADAR INDICATED THE STORM WAS PRODUCING HAIL TO THE SIZE OF PENNIES HOWEVER THIS IS BELOW SEVERE LIMITS AND THE WARNING WAS ALLOWED TO EXPIRE. LAT...LON 4842 11722 4839 11732 4867 11765 4874 11712 TIME...MOT...LOC 1658Z 169DEG 37KT 4867 11730 $$ SB
463 WWUS56 KOTX 231733 SVSOTX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 1033 AM PDT SAT JUN 23 2012 WAC051-065-231708- /O.EXP.KOTX.SV.W.0008.000000T0000Z-120623T1700Z/ PEND OREILLE WA-STEVENS WA- 1033 AM PDT SAT JUN 23 2012 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL STEVENS AND CENTRAL PEND OREILLE COUNTIES WILL EXPIRE AT 1000 AM PDT... DOPPLER RADAR INDICATED THE STORM WAS NO LONGER SEVERE AND THE WARNING WAS ALLOWED TO EXPIRE. LAT...LON 4842 11722 4839 11732 4867 11765 4874 11712 TIME...MOT...LOC 1658Z 169DEG 37KT 4867 11730 $$ SB
The 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, 9:08 AM PDT | Severe Thunderstorm Warning | OTX | Pend Oreille, Stevens | 36 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.