1 heavy rain, 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 Aug 6, 7:30 PM PST, 4 hours 30 minutes earlier.
NORTHEAST OREGON/SOUTHEAST WASHINGTON FORECAST DISCUSSION NATIONAL WEATHER SERVICE PENDLETON OR 830 PM PDT WED AUG 6 2003 A WEAK SHORT WAVE MOVED THROUGH WALLOWA COUNTY NEAR 00Z AND CONTAINED ENOUGH FORCING TO INITIATE DECENT SHOWERS AND THUNDERSTORMS BEFORE EXITING INTO IDAHO. IN ADDITION SHOWERS AND THUNDERSTORMS ARE FIRING OFF AHEAD OF A PRETTY DECENT SHORTWAVE MOVING INTO SOUTHWEST OREGON. THIS IS A GOOD INDICATOR OF HOW UNSTABLE THE ATMOSPHERE OVER THE PACIFIC NORTHWEST IS THIS PM. EXPECT THE SHORT WAVE TO BE THE FOCUSING POINT FOR CONTINUED THUNDERSTORM ACTIVITY THROUGH THE NIGHT. AT THIS TIME THE TRACK OF THE SHORTWAVE APPEARS TO BE NORTHERLY ALONG THE CASCADES AND EAST SLOPES. CURRENT FORECASTS ARE IN LINE FOR THE TIME BEING. A FEW WEAK RETURNS SHOWING UP GRANT COUNTY AS WELL...BUT SPOTTERS ARE INDICATING ONLY MID LEVEL CLOUDINESS. AS SUCH ANY UP DATES WOULD BE FOR THE CONVECTIVE POTENTIAL ACROSS THE EASTERN PORTIONS OF THE CWFA. I WILL GIVE A LITTLE TIME TO LET THINGS SHAKE OUT BEFORE REMOVING ANY THUNDERSTORM WORDING. IN THE MEAN TIME THE UPPER LOW WILL CONTINUE TO SPIN AND WOBBLE AROUND OFF THE COAST OF WASHINGTON AND B.C.. THIS KEEPS THE REGION IN A WARM AND SOMEWHAT UNSTABLE S-SW FLOW...THEREFORE ANY EJECTED SHORTWAVES WILL BRING THE POTENTIAL FOR CONVECTION THROUGH THE SHORT TERM. TOBIN PDT 321- ALW 321- PSC 221- YKM 111- .KPDT...NONE.
ORZ041>050-WAZ024>030-071200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 500 AM PDT WED AUG 6 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON. .DAY ONE... SHOWERS AND ISOLATED THUNDERSTORMS HAVE FORMED OVER GRANT COUNTY AND ARE MOVING NORTH THROUGH THE MOUNTAINS OF NORTHEAST OREGON. A DISTURBANCE WILL MOVE NORTH ALONG THE CASCADES THIS AFTERNOON. INCREASED INSTABILITY AND DAYTIME HEATING WILL COMBINE TO TRIGGER SCATTERED THUNDERSTORMS...MAINLY OVER THE MOUNTAINS OF NORTHEAST OREGON AND ALONG THE CASCADES. STRONG WINDS...RAIN...HAIL...AND LIGHTNING WILL ACCOMPANY THESE STORMS. .DAYS TWO THROUGH SEVEN... THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. A MOIST SOUTHWEST FLOW PATTERN ALOFT WILL CONTINUE THROUGH THE PERIOD. HOWEVER THE ATMOSPHERE WILL BE MORE STABLE WITH LESS SHOWER AND THUNDERSTORM ACTIVITY EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED. WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
Heavy rains resulted in flooding in some of the underpasses in Bend.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2003Every state in 2003This day in weather historyWarnings in Oregon, August 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: 5333213.