Alert archive / Oregon / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 21, NWS Pendleton, OR
NWS Pendleton, OR issued this severe thunderstorm warning at Aug 5, 2003, 2:38 PM PDT for Gilliam County, Morrow County, Oregon. It was in force for 67 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
- Aug 5, 2003, 2:38 PM PDT (21:38 UTC)
- Expired
- Aug 5, 2003, 3:45 PM PDT
- In force
- 67 min
- Issued by
- NWS Pendleton, OR
- Area
- Counties, with a storm outline in the text
Counties Gilliam County, OR, Morrow County, OR
The nearest sounding before it
Salem/Mcnary, OR (KSLE), launched 12:00Z, 9.6 hours before the alert went out and 235 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
- 1301 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
924
WUUS56 KPDT 052138
SVRPDT
ORC021-049-052245-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PENDLETON OR
238 PM PDT TUE AUG 5 2003
THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
GILLIAM COUNTY IN NORTH CENTRAL OREGON
WESTERN MORROW COUNTY IN NORTHEAST OREGON
* UNTIL 345 PM PDT
* AT 238 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 6 MILES SOUTHEAST OF CONDON...MOVING NORTHEAST
AT 10 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
LONEROCK AT 250 PM PDT
OLEX AT 320 PM PDT
HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 60 MPH ARE LIKELY. FOR
YOUR PROTECTION MOVE TO A STURDY SHELTER UNTIL THE STORM PASSES.
LAT...LON 4508 12043 4508 11936 4570 11963 4573 12011
4542 12046
$$The office that day
Everything else NWS Pendleton, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 5:29 PM PDT | Severe Thunderstorm Warning | PDT | Wasco | 61 min |
| Aug 4, 5:59 PM PDT | Severe Thunderstorm Warning | PDT | Umatilla | 61 min |
| Aug 4, 6:12 PM PDT | Flash Flood Warning | PDT | Wasco | 2 hr |
| Aug 4, 6:44 PM PDT | Severe Thunderstorm Warning | PDT | Crook | 61 min |
| Aug 5, 1:12 PM PDT | Severe Thunderstorm Warning | PDT | Deschutes, Jefferson | 33 min |
| Aug 5, 1:40 PM PDT | Severe Thunderstorm Warning | PDT | Deschutes, Jefferson | 50 min |
| Aug 5, 2:25 PM PDT | Severe Thunderstorm Warning | PDT | Jefferson, Wasco, Wheeler | 50 min |
| Aug 5, 2:29 PM PDT | Severe Thunderstorm Warning | PDT | Jefferson, Wasco | 46 min |
| Aug 5, 3:14 PM PDT | Severe Thunderstorm Warning | PDT | Sherman, Wasco | 46 min |
| Aug 5, 3:14 PM PDT | Severe Thunderstorm Warning | PDT | Sherman, Wasco | 61 min |
| Aug 5, 3:41 PM PDT | Severe Thunderstorm Warning | PDT | Morrow | 49 min |
| Aug 5, 3:45 PM PDT | Severe Thunderstorm Warning | PDT | Gilliam, Sherman | 60 min |
| Aug 5, 3:46 PM PDT | Severe Thunderstorm Warning | PDT | Gilliam, Sherman | 59 min |
| Aug 5, 4:19 PM PDT | Severe Thunderstorm Warning | PDT | Umatilla | 56 min |
Nearby
Severe Thunderstorm Warnings in Oregon, 2003Every severe thunderstorm warning in 2003
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.