Alert archive / Oregon / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 2, NWS Pendleton, OR
NWS Pendleton, OR issued this severe thunderstorm warning at May 9, 2000, 1:41 PM PDT for Umatilla County, Oregon. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 9, 2000, 1:41 PM PDT (20:41 UTC)
- Expired
- May 9, 2000, 2:30 PM PDT
- In force
- 49 min
- Issued by
- NWS Pendleton, OR
- Area
- Whole counties
County Umatilla County, OR
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 8.7 hours before the alert went out and 295 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
- 34 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 69 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 KPDT 092041 SVRPDT ORC059-092130- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PENDLETON OR 141 PM PDT TUE MAY 9 2000 THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN UMATILLA COUNTY IN NORTHEASTERN OREGON * UNTIL 230 PM PDT * AT 139 PM PDT... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES SOUTHEAST OF PENDLETON OR 5 MILES SOUTHWEST OF MISSION... MOVING NORTHEAST AT 40 MPH. * THIS STORM CAN BE EXPECTED IN THE VICINITY OF... MISSION AROUND 146 PM PDT CAYUSE AROUND 151 PM PDT THORN HOLLOW AROUND 156 PM PDT GIBBON AROUND 205 PM PDT WESTON AROUND 206 PM PDT RADAR INDICATES THIS STORM WILL PRODUCE LARGE HAIL AND STRONG GUSTY WINDS. A WEATHER OBSERVER AT THE PENDLETON AIRPORT BRIEFLY OBSERVED A FUNNEL CLPOUD WITH THIS STORM. THIS IS A DANGEROUS STORM! STAY INDOORS AWAY FROM WINDOWS. BAUCK &
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pendleton, OR wrote its last area forecast discussion before this severe thunderstorm warning went out at May 9, 8:30 AM PDT, 5 hours 11 minutes earlier.
Area forecast discussion, May 9, 8:30 AM PDT, 5 hours 11 minutes before
NORTHEAST OREGON/SOUTHEAST WASHINGTON FORECAST DISCUSSION NATIONAL WEATHER SERVICE PENDLETON OR 830 AM PDT TUE MAY 9 2000 AN UPPER LEVEL LOW LOCATED 45N/132W WILL SAG SOUTHEAST TOWARDS SOUTHWEST OREGON BY TOMORROW MORNING. THIS IS IN RESPONSE TO AMPLIFYING TROUGH WEST OF THE OREGON AND WASHINGTON COASTS. IN OUR FORECAST AREA...SHOWERS CONTINUE THIS MORNING IN THE BLUE MOUNTAINS...THE EASTERN SLOPES OF THE WASHINGTON CASCADES AND THE EASTERN COLUMBIA RIVER GORGE. THE NEW 12Z ETA INDICATES SLIGHTLY UNSTABLE CONDITIONS IN NORTHEAST OREGON AND SOUTHEAST WASHINGTON TODAY. THUS WILL MAINTAIN ONGOING FORECAST OF ISOLATED THUNDERSTORMS IN THE BLUE MOUNTAINS AND THE FOOTHILLS. VERY COLD AIR ALOFT WILL ARRIVE OVER OUR REGION LATE TODAY AND EARLY WEDNESDAY...LOWERING SNOW LEVELS TO JUST OVER 4000 FEET IN THE BLUE MOUNTAINS BY WEDNESDAY MORNING. DENMAN/GKH PDT 6563 ALW 6563 PSC 5453 YKM 4443 .KPDT...WSR-88D...VCP21/CSR21...OPERATIONAL. .KPDT...NONE.
The office that day
Everything else NWS Pendleton, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 12:54 PM PDT | Severe Thunderstorm Warning | PDT | Umatilla | 46 min |
| May 9, 3:21 PM PDT | Severe Thunderstorm Warning | PDT | Sherman, Wasco | 64 min |
Nearby
Severe Thunderstorm Warnings in Oregon, 2000Every severe thunderstorm warning in 2000
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.