1 thunderstorm wind, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, 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 the first event at Aug 10, 1:30 PM PST, 1 hour 38 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PENDLETON OR 230 PM PDT THU AUG 10 2006 .SHORT TERM...TONIGHT THROUGH SUNDAY...AN UPPER LEVEL TROUGH IS MOVING THROUGH THE AREA THIS AFTERNOON. A LINE ON RADAR EXTENDS FROM NORTHEAST WASHINGTON TO OTHELLO TO GRASS VALLEY OREGON TO OAKRIDGE. ALL THUNDERSTORM DEVELOPMENT WILL BE AT OR AHEAD OF THIS EASTWARD MOVING LINE (AREA OF BEST ASCENT AHEAD OF THE TROUGH). THE POTENTIAL EXISTS FOR GUSTY WINDS AND HAIL WITH THESE STORMS. THE LINE IS WEAK IN OUR CWA (OTHELLO SOUTH) BUT THUNDERSTORMS ARE DEVELOPING IN THE UNSTABLE AIR AHEAD OF IT IN OREGON. AS THIS LINE MOVES SLOWLY EAST THE POSSIBILITY OF THUNDERSTORMS TONIGHT WILL MOVE EAST. WILL ISSUE FORECAST COVERING ALL THIS AREA...DROP NORTHEAST PART OF IT IN 3 HOURS (EARLY EVENING WORDING)...AND THE REST OF IT AFTER MIDNIGHT (EVENING WORDING). FLAT WESTERLY FLOW WILL BE OVER THE ARE LATE TONIGHT THROUGH EARLY AFTERNOON FRIDAY. WINDS WILL BE BRIEFLY BREEZY TONIGHT WITH THE TROUGH PASSAGE...AND AGAIN FRIDAY AS WINDS ALOFT MIX TO THE SURFACE. WINDS WILL BE HIGHEST IN THE COLUMBIA RIVER GORGE...KITTITAS VALLEY...AND RIDGETOPS IN MOUNTAINS...BUT OTHER AREAS WILL IN OCCASIONALLY BREEZY. COOLER TEMPERATURES WILL ALSO MOVE IN BEHIND THE TROUGH TONIGHT. ANOTHER TROUGH WILL MOVE THROUGH LATE FRIDAY AFTERNOON/EVENING AND MAY TRIGGER THUNDERSTORMS IN NE OREGON. THE ATMOSPHERE WILL BE MORE STABLE THAN TODAY...BUT NAM MODEL HAS LINGERING INSTABILITY FROM GRANT COUNTY TO WALLOWA COUNTY. NOT SURE IF IT WILL BE ENOUGH TO TRIGGER THUNDERSTORMS BUT CAN NOT RULE IT OUT. ANOTHER TROUGH WILL MOVE THROUGH SATURDAY EVENING...BUT THE ATMOSPHERE WILL BE MORE STABLE AND MOISTURE WILL BE LIMITED SO EXPECT THE TROUGH PASSAGE SATURDAY TO BE DRY. SUNDAY A RIDGE WILL BUILD OVER THE AREA WITH INCREASING TEMPERATURES. COONFIELD .LONG TERM...SUNDAY NIGHT THROUGH THURSDAY...THE AREA WILL BE UNDER WEAK HIGH PRESSURE THROUGH MONDAY NIGHT. THIS WILL KEEP THINGS DRY AND MOSTLY CLEAR WITH TEMPERATURES INTO THE LOWER 90S IN THE WARMEST LOCATIONS ON MONDAY. ON TUESDAY AN UPPER LEVEL TROUGH AND AN ASSOCIATED COLD FRONT WILL MOVE INTO THE AREA. THIS WILL SET OFF SOME RAIN SHOWERS AND POSSIBLY ONE OR TWO THUNDERSTORMS IN THE WASHINGTON CASCADES AND THE MOUNTAINS OF CENTRAL AND EASTERN OREGON TUESDAY AFTERNOON AND EVENING. THE COLD FRONT WILL HAVE CONSIDERABLE COOL AIR BEHIND IT AND TEMPERATURES WILL FALL 4 TO 7 DEGREES ON WEDNESDAY TO THE UPPER 70S AND LOWER 80S IN THE LOWER ELEVATIONS. AS THE TROUGH MOVES VERY SLOWLY THROUGH THE AREA...THERE WILL BE A CONTINUED SLIGHT CHANCE OF RAIN SHOWERS IN THE MOUNTAINS THROUGH WEDNESDAY EVENING. THE TROUGH WILL BROADEN OUT THURSDAY BRINGING IN A MORE WESTERLY FLOW AND ALLOWING SHOWERS TO END EXCEPT IN THE WASHINGTON CASCADES. TEMPERATURES WILL REBOUND ON THURSDAY BUT STILL REMAIN 3 TO 5 DEGREES BELOW NORMAL. PERRY && .AVIATION...VFR CONDITIONS WILL PREVAIL FOR THE NEXT 24 HOURS AT ALL TAF LOCATIONS AND ALONG ALL TWEB ROUTES. AN UPPER LEVEL TROUGH IS CROSSING THE AREA WILL PRODUCE THUNDERSTORMS THROUGH THIS EVENING. SCATTERED THUNDERSTORMS WITH THE POTENTIAL FOR HEAVY RAIN...HAIL AND GUSTY WINDS WILL OCCUR NEAR KRDM AND ALONG TWEB ROUTES 366 AND 368. ISOLATED THUNDERSTORMS ARE POSSIBLE NEAR KPDT AND ALONG THE SOUTHERN THIRD OF TWEB ROUTE 355. MVFR CONDITIONS ARE POSSIBLE NEAR THE STRONGEST STORMS. THUNDERSTORM ACTIVITY WILL END BY 06Z. GUSTY SURFACE WINDS TO 30 KTS WILL BE POSSIBLE NEAR THUNDERSTORMS AND AT KDLS THIS EVENING AND OVERNIGHT. PERRY && .FIRE WEATHER...INDICATIONS ARE THAT THESE DEVELOPING STORMS WILL BE WET. GUSTY WINDS ASSOCIATED WITH THE STORMS MAY AFFECT SOME FIRES. THE STORMS WILL BE SCATTERED OVER NORTHEAST OREGON BUT THE FUELS ARE DRY...NOT CRITICAL. SINCE THE STORMS ARE NOT DRY AND FUELS NOT CRITICAL NO RED FLAG WARNING HAS BEEN ISSUED. COONFIELD && .PRELIMINARY POINT TEMPS/POPS... PDT 57 81 54 83 / 20 10 10 0 ALW 62 84 58 85 / 20 10 10 0 PSC 57 85 53 88 / 10 10 10 0 YKM 52 84 52 86 / 10 10 10 0 HRI 57 82 53 83 / 10 10 10 0 ELN 55 77 53 82 / 10 10 10 0 RDM 42 78 41 78 / 30 10 10 10 LGD 54 79 50 80 / 30 10 10 10 5J0 46 83 45 83 / 30 10 10 10 DLS 58 79 55 82 / 10 10 10 0 && .PDT WATCHES/WARNINGS/ADVISORIES... OR...NONE. WA...NONE. && TI:GGG FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT... WWW.WEATHER.GOV/PENDLETON 76/83/83
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
425 AM PDT THU AUG 10 2006
ORZ041-WAZ024-501-502-026>030-ORZ042>044-049-050-501>506-111130-
EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-
EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON-
EAST SLOPES OF THE SOUTHERN CASCADES OF WASHINGTON-
KITTITAS VALLEY-YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-
NORTHWEST BLUE MOUNTAINS-NORTH CENTRAL OREGON-CENTRAL OREGON-
LOWER COLUMBIA BASIN OF OREGON-GRANDE RONDE VALLEY-WALLOWA COUNTY-
FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON-
NORTHERN BLUE MOUNTAINS OF OREGON-
SOUTHERN BLUE MOUNTAINS OF OREGON-
NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES-JOHN DAY BASIN-
OCHOCO-JOHN DAY HIGHLANDS-
425 AM PDT THU AUG 10 2006
THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON
AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON.
.DAY ONE...TODAY AND TONIGHT
THUNDERSTORMS
EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON, EAST SLOPES
OF THE SOUTHERN CASCADES OF WASHINGTON, KITTITAS VALLEY,
YAKIMA VALLEY, FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON,
NORTH CENTRAL OREGON, FOOTHILLS OF THE BLUE MOUNTAINS OF
OREGON, NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES
STRONG THUNDERSTORMS
NORTHWEST BLUE MOUNTAINS, CENTRAL OREGON, GRANDE RONDE VALLEY,
WALLOWA COUNTY, NORTHERN BLUE MOUNTAINS OF OREGON, SOUTHERN
BLUE MOUNTAINS OF OREGON, JOHN DAY BASIN, OCHOCO-JOHN DAY
HIGHLANDS
ANOTHER WEATHER SYSTEM WILL MOVE INTO THE AREA TODAY WITH INCREASING
LOW TO MID LEVEL MOISTURE AND INSTABILITY. THIS WILL CREATE AN
ATMOSPHERE FAVORABLE FOR AFTERNOON AND EVENING THUNDERSTORMS TO
DEVELOP...SOME OF WHICH MAY CONTAIN DAMAGING WIND AND VERY HEAVY
RAIN. THE THUNDERSTORMS WILL DECREASE AFTER SUNSET TONIGHT.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH THURSDAY
THUNDERSTORMS FRIDAY
NORTHWEST BLUE MOUNTAINS, GRANDE RONDE VALLEY, WALLOWA COUNTY,
NORTHERN BLUE MOUNTAINS OF OREGON, SOUTHERN BLUE MOUNTAINS OF
OREGON, JOHN DAY BASIN, OCHOCO-JOHN DAY HIGHLANDS
LINGERING MOISTURE AND INSTABILITY ON FRIDAY AFTERNOON MAY ALLOW A
FEW MORE ISOLATED THUNDERSTORMS TO DEVELOP...OTHERWISE DRY AND
STABLE CONDITIONS WILL DEVELOP AND PREVAIL THROUGH THE PERIOD.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUIRED.
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
GRAPHICAL FORECASTS OF WEATHER HAZARDS OUT TO SEVEN DAYS
ARE DISPLAYED ON THE WORLD WIDE WEB AT:
WWW.WRH.NOAA.GOV/PENDLETON/CURRENTHAZARDS/HWO.HTML
ALL LETTERS IN THE ABOVE URL ARE LOWER CASE...EXCEPT THE H IN
CURRENTHAZARDS.The Pendleton radar (KPDT), 135 km away, was scanning. The volume nearest the first event began at 23:07 UTC.
1 thunderstorm wind. Local standard time, as filed.
Gusts to 60 mph knocked down several trees in the Prairie City area. Some of the fallen trees knocked down power lines.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2006Every state in 2006This day in weather historyWarnings in Oregon, August 2006
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5530408.