1 thunderstorm wind, as filed by the National Weather Service.
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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 Jun 21, 1:40 PM PST, 2 hours 10 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SEATTLE WA 240 PM PDT TUE JUN 21 2005 .SYNOPSIS...AN UPPER LOW MOVING THROUGH THE AREA WILL KEEP SHOWERS GOING WELL INTO WEDNESDAY...WITH A FEW THUNDERSTORMS TONIGHT. WEAK HIGH PRESSURE WILL RETURN THURSDAY AND FRIDAY FOR DRY WEATHER AND NEAR NORMAL TEMPERATURES. ANOTHER TROUGH WILL MOVE OVER THE AREA THIS WEEKEND FOR A CHANCE OF SHOWERS AGAIN. && .SHORT TERM...IN THE LOW LEVELS ONSHORE PRESSURE GRADIENTS INCREASING RATHER QUICKLY AND WINDS ARE NOW BEGINNING TO RESPOND. ACARS SOUNDINGS INDICATE THE WEST WINDS UP THROUGH 1600 FEET WITH THE TOP OF THE INVERSIONS AT 2100 FEET AT KSEA. THIS SHOULD DEEPEN QUICKLY INTO THIS EVENING WITH LOWER CLOUDS SPREADING INLAND. UNSTABLE AIR MASS ABOVE 6000 FEET MAKING ITSELF KNOWN THROUGH THE SCATTERED SHOWERS AND THUNDERSTORMS ACROSS WESTERN WASHINGTON THIS AFTERNOON. ELEVATED INSTABILITY WILL CONTINUE THROUGH THE NIGHT AS UPPER LEVEL LOW OPENS UP AND APPROACHES THE REGION. THE TROF AXIS IS EXPECTED TO MOVE ACROSS THE AREA WED AM TAKING THE THUNDERSTORM THREAT WITH IT. SHOWERS EXPECTED TO CONTINUE INTO WED EVENING AS ANOTHER SHORTWAVE TROF PASSES ACROSS THE AREA WED EVENING. EXPECT THE SHOWERS TO TAPER OFF DURING THE EARLY HALF OF WED NIGHT. FOR THE LATTER HALF OF WED NIGHT AND INTO THU...HEIGHTS WILL START TO BUILD AS SHORT WAVE RIDGE APPROACHES. AT THE SAME TIME HIGH PRES AT THE SFC WILL BUILD TO THE NORTH...FOR A NW SFC FLOW THAT WILL HELP TO LIMIT THE AMOUNT OF CLOUD COVER OVER THE AREA THU AND FRI. EXPECTING DRY CONDS THU AND FRI...ALTHOUGH AN APPROACHING WEAK UPPER TROF MAY KICK OFF SOME SHOWERS FRI NIGHT. CERNIGLIA .LONG TERM...PATTERN SUGGESTS SERIES OF TROUGHS MOVING THROUGH WESTERN WASHINGTON...WHICH WILL KEEP US UNDER FAIR TO PARTLY CLOUDY SKIES AND LEAVE US WITH A CHANCE FOR SHOWERS FOR THE FIRST PART OF THE WEEKEND. THE MODELS SHOW MOSTLY CLOUDY SKIES AND THE BEST CHANCE FOR RAIN ON SUNDAY INTO EARLY NEXT WEEK. JH && .AVIATION...MID LEVEL CLOUDS COVERING WESTERN WASHINGTON WITH ISOLATED THUNDERSTORMS. THUNDERSTORMS COULD LAST UNTIL 06-08Z. MEANWHILE STRONG MARINE PUSH UNDERWAY WITH STRATUS ON COAST SPREADING INLAND BY 08Z OR SO. KSEA...SW WIND 10 TO 15 KT THIS EVENING. MARINE STRATUS AFTER 08Z. CHB && .SEW WATCHES/WARNINGS/ADVISORIES...NONE. && .KATX...VCP11/CSR21A OPERATIONAL. &&
The Seattle radar (KATX), 67 km away, was scanning. The volume nearest the first event began at 23:48 UTC.
1 thunderstorm wind. Local standard time, as filed.
Several trees were downed over State Route 530 and a hiker near the area reported "giant" hail.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2005Every state in 2005This day in weather historyWarnings in Washington, June 2005
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: 5455052.