1 tornado, 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 Spokane, WA wrote its last area forecast discussion before the first event at May 11, 1:30 PM PST, 3 hours earlier.
EASTERN WASHINGTON AND NORTH IDAHO AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SPOKANE WASHINGTON 230 PM PDT SUN MAY 11 2003 .SYNOPSIS...A COMPLEX WEAK UPPER LEVEL LOW WILL CONTINUE TO TOUCH OFF SHOWERS AND A FEW AFTERNOON THUNDERSTORMS THROUGH TUESDAY. A WEAK RIDGE WILL FOLLOW TUESDAY AFTERNOON AND INTO TUESDAY NIGHT WHICH WILL KEEP MOST LOCATIONS DRY. A COLD FRONT WILL APPROACH US ON WEDNESDAY BRINGING MORE SHOWER ACTIVITY. MUCH COOLER AND SHOWERY WEATHER IS FORECAST FOR THE END OF THE WEEK INTO NEXT WEEKEND. .DISCUSSION...TONIGHT THROUGH WEDNESDAY...COMPLEX WEAK UPPER LEVEL LOW WITH A VORT LOVE JUST OFF THE OREGON COAST...AND A SMALLER VORT MAX OVER THE BLUES AND THE NORTHEAST MOUNTAINS THIS AFTERNOON IS DESTABILIZING THE ATMOSPHERE. SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP DURING THE EVENING HOURS OVER MOST LOCATIONS BEFORE DIURNALLY BEING SHUT DOWN LATER TONIGHT. OREGON VORT LOBE MOVES ASHORE MONDAY AFTERNOON AND MOVES ACROSS THE SOUTHERN PORTIONS OF THE DISTRICT. THIS SHOULD BRING ANOTHER ROUND OF CONVECTION TO ALL AREAS ESPECIALLY THE BLUES...CAMAS PRAIRIE AND THE SOUTHERN IDAHO PANHANDLE. VORT MAX MOVES THROUGH MONDAY NIGHT AND A SHORT WAVE RIDGE WILL MOVE ACROSS US AHEAD OF A DEVELOPING TROF OVER THE GULF OF ALASKA. TUESDAY LOOKS TO BE THE BEST DAY FOR DRY WEATHER AS GOOD SUBSIDENCE MOVES ACROSS THE DISTRICT DURING THE DAY AND INTO TUESDAY NIGHT. BY WEDNESDAY...ASSOCATED COLD FRONT AHEAD OF THE GULF OF ALASKA TROF WILL MOVE ACROSS THE AREA AND PROVIDE MAINLY MOUNTAIN SHOWER ACTIVITY MOST LOCATIONS INTO WEDNESDAY NIGHT. .EXTENDED...THURSDAY THROUGH SUNDAY... DIFFERENCES BETWEEN THE ECMWF AND GFS HAVE PROMPTED CHANGES TO THE EXTENDED FORECAST. ECMWF HAS BEEN CONSIDERED BETTER MODEL TO GO WITH AFTER COORDINATING WITH NEIGHBORING OFFICES AND LOOKING AT HPC ANALYSIS. THE GFS BRINGS A COLD TROUGH THROUGH THURSDAY WITH COOLEST TEMPS FRIDAY AND SHORTWAVE RIDGE SATURDAY. ECMWF HAS BROADER LONGWAVE PATTERN WITH SLOWER PROGRESSION OF THE TROUGH. SO THURSDAY LOOKS FAIRLY DRY WITH INCREASING CHANCES OF PRECIPITATION AND COOLER TEMPERATURES GOING INTO THE WEEKEND. TC ...THE INFORMATION IN THIS PRODUCT CONCERNING WARNINGS AND FORECASTS IS VALID ONLY AT THE TIME OF ISSUANCE. THE LATEST WARNING AND FORECAST INFORMATION WILL BE FOUND IN THE APPROPRIATE PRODUCTS... GEG 045/066/044/068/042/070 22100- COE 040/065/042/068/041/066 2221-1 PUW 040/067/043/064/043/068 22200- LWS 050/069/047/072/048/073 44200- CQV 039/069/041/071/040/075 322001 SPT 039/067/040/069/041/068 3231-1 WWP 038/061/038/064/036/066 3231-1 MWH 045/072/044/075/044/076 110000 EAT 050/074/046/074/047/075 12000- OMK 044/072/040/075/040/075 22100- .OTX...NONE.
IDZ001>004-026-027-WAZ031>038-041>044-121330- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPOKANE WA 457 AM PDT SUN MAY 11 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN WASHINGTON AND NORTH IDAHO .DAY ONE... TODAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN... MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... 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 tornado. Local standard time, as filed.
A small tornado briefly touched down over unpopulated farm land during the afternoon of May 11th.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2003Every state in 2003This day in weather historyThe tornado archive for Washington, 2003Warnings in Washington, May 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: 5355287.