Alert archive / Oregon / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 13, NWS Pendleton, OR

July 8, 2000Union County, Oregon

NWS Pendleton, OR issued this severe thunderstorm warning at Jul 8, 2000, 4:19 PM PDT for Union County, Oregon. It was in force for 56 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: Jul 8, 2000, 4:19 PM PDT (23:19 UTC)
Expired: Jul 8, 2000, 5:15 PM PDT
In force: 56 min
Issued by: NWS Pendleton, OR
Area: Whole counties

County Union County, OR

The nearest sounding before it

Boise Airport, ID (KBOI), launched 12:00Z, 11.3 hours before the alert went out and 241 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2515 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: -40 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

103 
WUUS56 KPDT 082321
SVRPDT
ORC061-090005-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PENDLETON OR
419 PM PDT SAT JUL 8 2000

THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  UNION COUNTY IN NORTHEASTERN OREGON

* UNTIL 515 PM PDT

* AT 416 PM PDT... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 18
  MILES SOUTHWEST OF LAGRANDE OR 15 MILES SOUTH OF PERRY... MOVING
  NORTH AT 20 MPH.

THIS STORM IS EXPECTED TO MOVE OVER LAGRANDE IN THE NEXT 45
MINUTES.

THIS STORM HAS A HISTORY OF LARGE HAIL. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

THIS SEVERE THUNDERSTORM WARNING REPLACES THE WARNING FOR SOUTHERN
UNION COUNTY.

MEAD/NIPPER

The office that day

Everything else NWS Pendleton, OR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 8, 3:16 PM PDT	Severe Thunderstorm Warning	PDT	Grant, Union	59 min

Nearby

Severe Thunderstorm Warnings in Oregon, 2000 Every 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.