Alert archive / Oregon / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 3, NWS Pendleton, OR
NWS Pendleton, OR issued this severe thunderstorm warning at May 9, 2000, 3:21 PM PDT for Klickitat County, Washington; Sherman County, Wasco County, Oregon. It was in force for 64 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, 3:21 PM PDT (22:21 UTC)
- Expired
- May 9, 2000, 4:25 PM PDT
- In force
- 64 min
- Issued by
- NWS Pendleton, OR
- Area
- Whole counties
Counties Sherman County, OR, Wasco County, OR, Klickitat County, WA
The nearest sounding before it
Salem/Mcnary, OR (KSLE), launched 12:00Z, 10.4 hours before the alert went out and 177 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
- 57 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 541 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 165 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
735 WUUS56 KPDT 092221 SVRPDT ORC055-065-WAC039-092325- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PENDLETON OR 321 PM PDT TUE MAY 9 2000 THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN KLICKITAT COUNTY IN SOUTH CENTRAL WASHINGTON NORTHERN SHERMAN COUNTY IN NORTH CENTRAL OREGON NORTHERN WASCO COUNTY IN NORTH CENTRAL OREGON * UNTIL 425 PM PDT * AT 319 PM PDT... DOPPLER RADAR AND SPOTTER REPORTS INDICATED A SEVERE THUNDERSTORM IN THE VICINITY OF THE DALLES OR IN THE VICINITY OF DALLESPORT...MOVING NORTHEAST AT 40 MPH. WIND GUSTS 50 TO 60 MPH HAVE BEEN REPORTED WITH THIS STORM. * THIS STORM CAN BE EXPECTED IN THE VICINITY OF... DALLESPORT AROUND 319 PM PDT THE DALLES AROUND 319 PM PDT PETERSBURG AROUND 323 PM PDT CELILO AROUND 331 PM PDT WISHRAM AROUND 332 PM PDT MOODY AROUND 334 PM PDT CENTERVILLE AROUND 341 PM PDT BIGGS AROUND 341 PM PDT GOLDENDALE AROUND 349 PM PDT THIS IS A DANGEROUS STORM STAY INDOORS AWAY FROM WINDOWS. DI/GKH &
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, 2:40 PM PDT, 41 minutes earlier.
Area forecast discussion, May 9, 2:40 PM PDT, 41 minutes before
NORTHEAST OREGON/SOUTHEAST WASHINGTON FORECAST DISCUSSION NATIONAL WEATHER SERVICE PENDLETON OR 240 PM PDT TUE MAY 9 2000 A DISTURBANCE WEST OF THE WASHINGTON/OREGON COAST WILL SLOWLY SAG TO THE SOUTHEAST AS THE JET STREAM BECOMES MORE AMPLIFIED...DEVELOPING A TROUGH NEAR 130W. UNSEASONABLY COLD AIR WILL ARRIVE TONIGHT OVER EASTERN OREGON AND WASHINGTON WITH 850 MB TEMPERATURES FALLING TO NEAR -2 DEGREES CELSIUS BY 12Z WEDNESDAY. AS A RESULT...THE SNOW LEVEL WILL FALL TO NEAR 3500 FEET OVER THE CASCADES AND TO NEAR 4000 FEET OVER THE EASTERN MOUNTAINS OF OREGON. HAVE ISSUED A SPECIAL WEATHER STATEMENT DETAILING LOWERING SNOW LEVELS IN THE CASCADE AND BLUE MOUNTAINS. HAVE ALSO MENTIONED SNOW SHOWERS IN THE BLUE MOUNTAINS WITH ACCUMULATIONS OF ONE TO TWO INCHES ABOVE 4000 FEET. ON WEDNESDAY...BOTH THE ETA AND THE AVN BRING CONTINUED UNSTABLE CONDITIONS TO MUCH OF OREGON AND WASHINGTON. THEREFORE WILL MENTION THUNDER WITH ANY SCATTERED CONVECTIVE SHOWERS THAT DEVELOP OVER THE REGION. EXTENDED. A BROAD TROUGH WILL REMAIN OVER THE PACIFIC NORTHWEST FRIDAY THROUGH SUNDAY. COLD TEMPERATURES ALOFT WILL MAINTAIN COOL AND UNSETTLED CONDITIO!NS...WITH A CHANCE OF SHOWERS EACH DAY. DENMAN/GKH PDT 6543 ALW 6543 PSC 4422 YKM 4332 .KPDT...WSR-88D...VCP21/CSR21...OPERATIONAL. .KPDT...NONE.
In the hours before
Special weather statement, May 9, 2:15 PM PDT, 1 hour 6 minutes before
WAZ030-ORZ046-048-050-101100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PENDLETON OR 215 PM PDT TUE MAY 9 2000 ...SNOW RETURNS TO THE MOUNTAINS OF NORTHEAST OREGON AND SOUTHEAST WASHINGTON... A COLD FRONT WILL SPREAD COOLER AIR ACROSS THE PACIFIC NORTHWEST TONIGHT. AS A RESULT...SNOW LEVELS IN THE BLUE...WALLOWA... STRAWBERRY AND OCHOCO MOUNTAINS WILL LOWER TO BETWEEN 3500 AND 4000 FEET. WIDESPREAD SHOWER ACTIVITY THIS EVENING WILL DECREASE TO SCATTERED SHOWERS AS THE COOLER AIR ARRIVES LATER TONIGHT. THUS... ONLY LOCAL SNOW ACCUMULATIONS OF 1 TO 2 INCHES ARE EXPECTED ABOVE 4000 FEET...WITH LIGHTER AMOUNTS OF UP TO AN INCH BETWEEN 3500 TO 4000 FEET. ORZ042-043-101100- 215 PM PDT TUE MAY 9 2000 ...SNOW TO RETURN TO CENTRAL AND NORTH-CENTRAL OREGON TONIGHT... A COLD FRONT WILL MOVE ACROSS CENTRAL AND NORTH-CENTRAL OREGON TONIGHT LOWERING SNOW LEVELS TO NEAR 3500 FEET. SCATTERED SHOWERS WILL ACCOMPANY THE FRONT...AND THEN LINGER INTO THE EARLY HOURS WEDNESDAY MORNING. SNOW ACCUMULATIONS WILL BE LIGHT...BUT LOCAL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE. SNOW LEVELS WILL BE LOW ENOUGH FOR MIXED SNOW AND RAIN SHOWERS IN THE BEND AREA. WAZ025-101100- 215 PM PDT TUE MAY 9 2000 ...SNOW TO RETURN TO THE EAST SLOPES OF THE SOUTHERN WASHINGTON CASCADES... A COLD FRONT WILL MOVE ACROSS THE EAST SLOPES OF THE SOUTHERN WASHINGTON CASCADES TONIGHT LOWERING SNOW LEVELS TO BETWEEN 3000 AND 3500 FEET. SCATTERED SHOWERS WILL CONTINUE THROUGH THE NIGHT...THUS ONLY LOCAL SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE EXPECTED. GKH
Local storm report, May 9, 2:27 PM PDT, 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PENDLETON OREGON
227 PM PDT TUE MAY 09 2000
TIME(PDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1240 PM 10 S (PDT)PENDLETON ARPT OR FUNNEL CLOUD
05/09/00 UMATILLA REPORTED BY NWS
OBSERVER.
1247 PM (PDT)PENDLETON ARPT OR .88 INCH HAIL
05/09/00 UMATILLA NICKEL SIZE HAIL.
REPORTED BY OFF-DUTY
NWS EMPLOYEE.
0115 PM HELIX OR 52 MPH TSTM GUST.
05/09/00 UMATILLA REPORTED BY STORM
SPOTTER.
0120 PM HERMISTON OR .75 INCH HAIL
05/09/00 UMATILLA HAIL AND 45
MPH WIND REPORTED BY
STORM SPOTTER
(UMATILLA-6H).
0136 PM 10 E (PDT)PENDLETON ARPT OR FUNNEL CLOUD
05/09/00 UMATILLA REP^ORTED BY NWS
OBSERVER.Local storm report, May 9, 2:41 PM PDT, 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PENDLETON OREGON
241 PM PDT TUE MAY 09 2000
TIME(PDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0155 PM WALLA WALLA ARPT WA FUNNEL CLOUD
05/09/00 WALLA WALLA FUNNEL CLOUD NEAR WALLA
WALLA AIRPORT WITH PEA
SIZE HAIL. REPORTED BY
STORM SPOTTER (WALLA
WALLA-18H).
0215 PM DAYTON WA 60 MPH TSTM GUST
05/09/00 COLUMBIA REPORTED BY5 STORM
SPOTTER (COLUMBIA-21).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 | Walla Walla | 46 min |
| May 9, 1:41 PM PDT | Severe Thunderstorm Warning | PDT | Umatilla | 49 min |
Nearby
Severe Thunderstorm Warnings in Oregon, 2000Severe Thunderstorm Warnings in Washington, 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.