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 Seattle, WA wrote its last area forecast discussion before the first event at May 28, 8:40 AM PST, 3 hours 20 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SEATTLE WA 940 AM PDT FRI MAY 28 2004 .SYNOPSIS...A DEEP UPPER LOW WILL SWING ACROSS WESTERN WASHINGTON TODAY...FOR MORE SHOWERS AND A CHANCE OF THUNDERSTORMS. A WEAK WARM FRONT WILL MOVE INTO THE AREA SATURDAY...AND MOIST WESTERLY FLOW ALOFT WILL KEEP SHOWERS IN THE FORECAST THROUGH THE WEEKEND. AN UPPER RIDGE WILL BUILD OVER THE AREA EARLY NEXT WEEK FOR A TREND TOWARD WARMER AND DRIER WEATHER. && .DISCUSSION...SATELLITE IMAGERY SHOWS COLD UPPER LEVEL TROUGH OVER THE PACIFIC NORTHWEST WITH THE TROUGH AXIS ALONG THE COAST. VORT LOBE ROTATING INLAND OVER SOUTHWEST WASHINGTON AT 15Z. ACARS DECENT SOUNDING INTO KBFI REPORTING 500 MB TEMPS -27C. MODEL SOUNDINGS FOR THIS AFTERNOON CONTINUE THE IDEA OF AN UNSTABLE AIR MASS OVER WESTERN WASHINGTON WITH LIFTED INDEXES BELOW ZERO AND CONVECTIVE TEMPERATURES IN THE LOWER TO MID 50S. TROUGH AXIS EAST OF THE AREA BY 00Z WITH NORTHWESTERLY FLOW ALOFT. WEAK CONVERGENCE ALREADY PRESENT OF THE WSR-88D IN NORTHERN SNOHOMISH COUNTY. EXPECT THE CONVERGENCE ZONE TO INTENSIFY AND MOVE SOUTH LATER THIS AFTERNOON INTO TONIGHT. AS THE TROUGH CONTINUES TO MOVE EAST FLOW ALOFT BECOMES MORE ZONAL OVER THE WEEKEND. A SERIES OF WEAK SYSTEMS EMBEDDED IN THE ZONAL FLOW MOVING OVER THE AREA FOR SATURDAY AND SUNDAY KEEPING SHOWERS IN THE FORECAST. BY MONDAY AN UPPER LEVEL TROUGH WILL BEGIN TO DIG OUT BETWEEN 140-150W WHICH WILL IN TURN START TO BUILD A RIDGE ALONG THE WEST COAST FOR A DRY MEMORIAL DAY. ALL THIS COVERED IN THE CURRENT FORECAST. NO UPDATES NEEDED THIS MORNING. FELTON && .SEW...SMALL CRAFT ADVISORY CENTRAL AND EASTERN STRAIT. .KATX...VCP11/CSR21. &&
The Seattle radar (KATX), 60 km away, was scanning. The volume nearest the first event began at 20:01 UTC.
1 funnel cloud. Local standard time, as filed.
A funnel cloud, lasting less than a minute, was spotted near Mill Creek.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2004Every state in 2004This day in weather historyWarnings in Washington, May 2004
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: 5394289.