Alert archive / Washington / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 21, NWS Spokane, WA
NWS Spokane, WA issued this severe thunderstorm warning at Jul 4, 2006, 2:56 PM PDT for Chelan County, Washington. It was in force for 34 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 4, 2006, 2:56 PM PDT (21:56 UTC)
- Expired
- Jul 4, 2006, 3:30 PM PDT
- In force
- 34 min
- Issued by
- NWS Spokane, WA
- Area
- Counties, with a storm outline in the text
County Chelan County, WA
The radar
The Seattle radar (KATX), 123 km from the middle of the area, began a volume at 21:57 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
Quillayute State, WA (KUIL), launched 12:00Z, 9.9 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1183 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS56 KOTX 042158 SVROTX WAC007-042230- /O.NEW.KOTX.SV.W.0021.060704T2156Z-060704T2230Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SPOKANE WA 256 PM PDT TUE JUL 4 2006 THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WEST CENTRAL CHELAN COUNTY IN NORTH CENTRAL WASHINGTON * UNTIL 330 PM PDT * AT 247 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR HIGHWAY 2 EAST OF STEVENS PASS...OR ABOUT 36 MILES NORTHWEST OF WENATCHEE...AND MOVING NORTH AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... TELMA BY 315 PM PDT LAT...LON 4772 12110 4767 12074 4799 12061 4806 12110 $$ JW
2 follow-up statements
000 WWUS56 KOTX 042215 SVSOTX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 313 PM PDT TUE JUL 4 2006 WAC007-042230- /O.CON.KOTX.SV.W.0021.000000T0000Z-060704T2230Z/ CHELAN WA- 313 PM PDT TUE JUL 4 2006 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM PDT FOR WEST CENTRAL CHELAN COUNTY... AT 305 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 5 MILES NORTHEAST OF STEVENS PASS SUMMIT...OR ABOUT 41 MILES NORTHWEST OF WENATCHEE...MOVING NORTH AT 10 MPH. LAT...LON 4772 12110 4767 12074 4799 12061 4806 12110 $$ JW
000 WWUS56 KOTX 042233 SVSOTX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SPOKANE WA 331 PM PDT TUE JUL 4 2006 WAC007-042245- /O.EXP.KOTX.SV.W.0021.000000T0000Z-060704T2230Z/ CHELAN WA- 331 PM PDT TUE JUL 4 2006 ...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL CHELAN COUNTY EXPIRED AT 330 PM PDT... THE SEVERE THUNDERSTORM PASSED OVER THE CAMPGROUNDS OFF THE LITTLE WENATCHEE RIVER WEST OF LAKE WENATCHEE. THE STORM IS WEAKENING AND MOVING TOWARD GLACIER PEAK WILDERNESS. SMALL HAIL AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS STORM. LAT...LON 4772 12110 4767 12074 4799 12061 4806 12110 $$ JW
Nearby
Severe Thunderstorm Warnings in Washington, 2006Every severe thunderstorm warning in 2006
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.