Alert archive / Oregon / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 33, NWS Pendleton, OR

August 4, 2004Deschutes County, Oregon

NWS Pendleton, OR issued this severe thunderstorm warning at Aug 4, 2004, 1:50 PM PDT for Deschutes County, Oregon. It was in force for 55 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: Aug 4, 2004, 1:50 PM PDT (20:50 UTC)
Expired: Aug 4, 2004, 2:45 PM PDT
In force: 55 min
Issued by: NWS Pendleton, OR
Area: Counties, with a storm outline in the text

County Deschutes County, OR

The radar

The Medford radar (KMAX), 237 km from the middle of the area, began a volume at 20:52 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 4, 12:30 PM PDT	Severe Thunderstorm Watch	SPC	8 hr

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 Aug 4, 9:20 AM PDT, 4 hours 30 minutes earlier.

Area forecast discussion, Aug 4, 9:20 AM PDT, 4 hours 30 minutes before

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Hazardous weather outlook, Aug 4, 1:00 PM PDT, 50 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OREGON
100 PM PDT WED AUG 4 2004

ORZ041>050-WAZ024>030-051200-
NORTH CENTRAL OREGON-CENTRAL OREGON-LOWER COLUMBIA BASIN (OR)-
FOOTHILLS OF THE BLUE MOUNTAINS (OR)-BLUE MOUNTAINS-JOHN DAY BASIN-
OCHOCO-JOHN DAY HIGHLANDS-GRANDE RONDE VALLEY-WALLOWA COUNTY-
EASTERN COLUMBIA RIVER GORGE (WA)-
EAST SLOPES OF THE SOUTHERN CASCADES-KITTITAS VALLEY-YAKIMA VALLEY-
LOWER COLUMBIA BASIN (WA)-FOOTHILLS OF THE BLUE MOUNTAINS (WA)-
NORTHWEST BLUE MOUNTAINS-
100 PM PDT WED AUG 4 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON
AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

A SEVERE THUNDERSTORM WATCH BOX IS IN EFFECT FOR
     EASTERN COLUMBIA RIVER GORGE (WA), EASTERN COLUMBIA RIVER GORGE
     (WA), EAST SLOPES OF THE SOUTHERN CASCADES, KITTITAS VALLEY,
     YAKIMA VALLEY, LOWER COLUMBIA BASIN (WA), FOOTHILLS OF THE BLUE
     MOUNTAINS (WA), NORTHWEST BLUE MOUNTAINS, EASTERN COLUMBIA RIVER
     GORGE (OR), NORTH CENTRAL OREGON, CENTRAL OREGON, LOWER COLUMBIA
     BASIN (OR), FOOTHILLS OF THE BLUE MOUNTAINS (OR), BLUE
     MOUNTAINS, JOHN DAY BASIN, OCHOCO-JOHN DAY HIGHLANDS, GRANDE
     RONDE VALLEY, WALLOWA COUNTY

STRONG THUNDERSTORMS
     EASTERN COLUMBIA RIVER GORGE (WA), EASTERN COLUMBIA RIVER GORGE
     (WA), EAST SLOPES OF THE SOUTHERN CASCADES, KITTITAS VALLEY,
     YAKIMA VALLEY, LOWER COLUMBIA BASIN (WA), FOOTHILLS OF THE BLUE
     MOUNTAINS (WA), NORTHWEST BLUE MOUNTAINS, EASTERN COLUMBIA RIVER
     GORGE (OR), NORTH CENTRAL OREGON, CENTRAL OREGON, LOWER COLUMBIA
     BASIN (OR), FOOTHILLS OF THE BLUE MOUNTAINS (OR), BLUE
     MOUNTAINS, JOHN DAY BASIN, OCHOCO-JOHN DAY HIGHLANDS, GRANDE
     RONDE VALLEY, WALLOWA COUNTY

SCATTERED SHOWERS AND THUNDERSTORMS ARE BEGINNING TO DEVELOP ACROSS
EASTERN OREGON AND EASTERN WASHINGTON...WHICH WILL PERSIST THROUGH
THIS EVENING. MOISTURE AND INSTABILITY COMBINED WITH STRONG MID
LEVEL WIND SHEAR WILL RESULT IN ORGANIZED THUNDERSTORMS CAPABLE OF
PRODUCING LARGE HAIL AND DAMAGING WINDS.

THE STORM PREDICTION CENTER IN NORMAN, OKLAHOMA, HAS ISSUED A SEVERE
THUNDERSTORM WATCH UNTIL 8 PM PDT FOR CENTRAL AND NORTHEASTERN
OREGON AND PORTIONS OF SOUTHEAST WASHINGTON...INCLUDING THE
FOLLOWING LOCATIONS
BEND...CONDON...ENTERPRISE...FOSSIL...HEPPNER...HERMISTON...JOHN
DAY...LA GRANDE...MADRAS...MAUPIN...PENDLETON...PRINEVILLE...
SENECA...THE DALLES AND WASCO IN OREGON AS WELL AS WALLA
WALLA...WALLULA...WAITSBURG...AND DAYTON IN WASHINGTON.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS THURSDAY
          EASTERN COLUMBIA RIVER GORGE (WA), EAST SLOPES OF THE
          SOUTHERN CASCADES, KITTITAS VALLEY, YAKIMA VALLEY, LOWER
          COLUMBIA BASIN (WA), FOOTHILLS OF THE BLUE MOUNTAINS (WA),
          NORTHWEST BLUE MOUNTAINS, EASTERN COLUMBIA RIVER GORGE
          (OR), LOWER COLUMBIA BASIN (OR), FOOTHILLS OF THE BLUE
          MOUNTAINS (OR), BLUE MOUNTAINS, JOHN DAY BASIN, OCHOCO-JOHN
          DAY HIGHLANDS, GRANDE RONDE VALLEY, WALLOWA COUNTY

ISOLATED TO SCATTERED COVERAGE OF THUNDERSTORMS WILL CONTINUE ON
THURSDAY...ENDING IN THE EASTERN COLUMBIA RIVER GORGE...YAKIMA
VALLEY...AND COLUMBIA BASIN BY AFTERNOON.  THESE STORMS ARE EXPECTED
TO REMAIN BELOW SEVERE LEVELS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE REQUIRED THIS AFTERNOON AND
EVENING.

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

PROTOTYPE GRAPHICAL FORECASTS OF WEATHER HAZARDS OUT TO SEVEN DAYS
ARE DISPLAYED ON THE WORLD WIDE WEB AT:

WWW.WRH.NOAA.GOV/PENDLETON/FORECAST/HWOGRAPHICS/HWOGRAPHICS.PHP

ALL LETTERS IN THE ABOVE URL ARE LOWER CASE...EXCEPT THE G IN
HWOGRAPHICS AND THE G IN HWOGRAPHICS.PHP.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 2:33 PM PDT	Severe Thunderstorm Warning	PDT	Union	57 min
Aug 4, 2:45 PM PDT	Severe Thunderstorm Warning	PDT	Umatilla	60 min
Aug 4, 3:44 PM PDT	Severe Thunderstorm Warning	PDT	Umatilla	61 min
Aug 4, 4:49 PM PDT	Severe Thunderstorm Warning	PDT	Grant	56 min

Nearby

Severe Thunderstorm Warnings in Oregon, 2004 Every severe thunderstorm warning in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.