1 funnel cloud, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 Apr 29, 1:20 PM PST, 5 hours earlier.
NORTHEAST OREGON/SOUTHEAST WASHINGTON FORECAST DISCUSSION NATIONAL WEATHER SERVICE PENDLETON OR 220 PM PDT TUE APR 29 2003 CURRENT RADAR IMAGERY BEGINNING TO SHOW SIGNS OF SETTLING DOWN THIS EVENING. ONE AREA OF CONTINUED CONCERN IS YAKIMA VALLEY EASTWARD TO THE COLUMBIA BASIN SOUTH OF THE TRI-CITIES WHERE THE ATMOSPHERE CONINUES TO BE QUITE UNSTABLE. EXPECT THUNDERSTORM ACTIVITY HERE TO PERSIST THROUGH THE REST OF THE EVENING. THE SOUTHERN END OF THIS LINE...WHICH EXTENDES INTO THE SOUTHERN BLUE MOUNTAINS AND NORTHERN GRANT COUNTY IS IN SLIGHTLY MORE STABLE AIR...AND WILL LIKELY DIMISH. ISOLATED AREAS OF FOG ARE ALSO A POSSIBILITY OVERNIGHT...PARTICULARLY WHERE THE SKIES HAVE THE OPPORTUNITY TO CLEAR OUT. JR PDT 5321 ALW 5321 PSC 5321 YKM 5321 .KPDT...NONE.
ORZ041>050-WAZ024>030-301300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 520 AM PDT TUE APR 29 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON. .DAY ONE... THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. A SERIES OF WAVES ROTATING AROUND AN UPPER LOW OVER SOUTHWEST OREGON WILL BRING SCATTERED SHOWERS TO THE REGION TODAY AND TONIGHT. THE AIR MASS REMAINS UNSTABLE...AND ISOLATED THUNDERSTORMS ARE EXPECTED THIS AFTERNOON. SOME THUNDERSTORMS WILL PRODUCE HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS. .DAYS TWO THROUGH SEVEN... THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. ALTHOUGH THE LOW PRESSURE SYSTEM WILL WEAKEN AS IT MOVES OVER THE PACIFIC NORTHWEST...IT WILL REMAIN STATIONARY THROUGH THURSDAY. SCATTERED SHOWERS AND ISOLATED AFTERNOON THUNDERSTORMS WILL CONTINUE WEDNESDAY. ANOTHER LOW PRESSURE SYSTEM WILL DROP SOUTHWARD FROM BRITISH COLUMBIA AND INTO THE PACIFIC NORTHWEST THIS WEEKEND FOR ANOTHER ROUND OF PRECIPITATION. DRIER CONDITIONS ARE EXPECTED MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED. WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The Pendleton radar (KPDT), 79 km away, was scanning. The volume nearest the first event began at 02:19 UTC.
1 funnel cloud. Local standard time, as filed.
A funnel cloud associated with a thunderstorm moved slowly northward.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2003Every state in 2003This day in weather historyWarnings in Washington, April 2003
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: 5353727.