Alert archive / Oregon / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 21, NWS Pendleton, OR
NWS Pendleton, OR issued this severe thunderstorm warning at Jun 27, 2001, 8:45 PM PDT for Morrow County, Oregon. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jun 27, 2001, 8:45 PM PDT (03:45 UTC)
- Expired
- Jun 27, 2001, 9:45 PM PDT
- In force
- 60 min
- Issued by
- NWS Pendleton, OR
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Morrow County, OR
The radar
The Pendleton radar (KPDT), 32 km from the middle of the area, began a volume at 03:49 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, 3.8 hours before the alert went out and 259 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
- 6 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 1159 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
251 WUUS56 KPDT 280352 CCA SVRPDT ORC049-059-WAC013-071-280445- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PENDLETON OR 845 PM PDT WED JUN 27 2001...CORRECTED EXPIRATION TIME IN HEADER CODE THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN WALLA WALLA COUNTY IN SOUTH CENTRAL WASHINGTON COLUMBIA COUNTY IN SOUTHEAST WASHINGTON * UNTIL 945 PM PDT * AT 845 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 6 MILES SOUTHWEST OF WAITSBURG WASHINGTON TO 26 MILES WEST OF UKIAH OREGON...OR FROM 11 MILES NORTH OF WALLA WALLA WASHINGTON TO 23 MILES SOUTH OF HEPPNER OREGON...MOVING EAST AT 20 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... ATHENA...PILOT ROCK AT 850 PM PDT DAYTON...WESTON AT 855 PM PDT WHETSTONE AT 900 PM PDT PATIT AT 905 PM PDT THORN HOLLOW AT 910 PM PDT UKIAH AT 915 PM PDT LARGE HAIL...DAMAGING WINDS...AND HEAVY RAINFALL ARE LIKELY WITH THIS STORM. TAKE COVER IN A STURDY BUILDING UNTIL THE STORM HAS PASSED. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. LAT...LON 4658 11825 4502 11977 4502 11898 4637 11770 CLOUTIER
The office that day
Everything else NWS Pendleton, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 5:34 PM PDT | Severe Thunderstorm Warning | PDT | Umatilla | 26 min |
| Jun 27, 8:15 PM PDT | Severe Thunderstorm Warning | PDT | Umatilla | 60 min |
| Jun 27, 8:15 PM PDT | Severe Thunderstorm Warning | PDT | Morrow | 60 min |
| Jun 27, 8:45 PM PDT | Severe Thunderstorm Warning | PDT | Umatilla | 60 min |
Nearby
Severe Thunderstorm Warnings in Oregon, 2001Every severe thunderstorm warning in 2001
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.