Lightning strikes cause minor damage.
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 episode as NWS SEW wrote it up.
Lightning strikes cause minor damage.
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 Jul 13, 8:00 AM PST, 3 hours 25 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SEATTLE WA 900 AM PDT FRI JUL 13 2012 .SYNOPSIS...AN UPPER LOW OVER WESTERN WASHINGTON TODAY WILL SLOWLY DRIFT SOUTHEAST TONIGHT AND SATURDAY. THE UPPER LOW WILL BRING A RISK OF SHOWERS OR THUNDERSTORMS TO MUCH OF THE ARE THROUGH TONIGHT. ANOTHER UPPER LOW WILL MOVE INTO THE AREA SUNDAY NIGHT KEEPING THE LOW LEVEL ONSHORE FLOW PATTERN INTACT AND THE RISK FOR UNSETTLED WEATHER OVER THE MOUNTAINS INTO THE FIRST HALF OF NEXT WEEK. && .SHORT TERM...THERE ARE SOME CHANGES TO THE FORECAST TODAY AS SHOWERS AND THUNDERSTORMS HAVE FIRED UP ACROSS PORTIONS OF WRN WA. THE 500 MB CLOSED UPPER LOW IS CENTERED OVER OLYMPIA THIS MORNING PROVIDING UNSTABLE CONDITIONS ABOVE THE MARINE LAYER. SAMPLE TIME-HEIGHT SECTIONS INDICATE LAPSE RATES OVER 8 C/KM ABOVE 850 MB AND A -17C COLD POOL AT 500 MB. BEST DYNAMICS ARE UNDER THE DIFFLUENT REGION N OF THE UPPER LOW. ELY FLOW WILL ALSO ALLOW ANY THUNDERSTORMS THAT DEVELOP OVER THE CASCADES TO EASILY MOVE OFF OVER THE LOWLAND AREAS. THE CURRENT RADAR LOOP SHOW SCATTERED SHOWER/THUNDERSTORM ACTIVITY NORTH OF A LINE FROM ROUGHLY HOQUIAM-SEATTLE. MODELS INDICATE LITTLE MOVEMENT OF THE LOW THROUGH MIDDAY THEN VERY GRADUAL MOVEMENT SWD WHICH WILL ALLOW SHOWERS AND THUNDERSTORMS TO DEVELOP FURTHER SOUTH TODAY...JUST ABOUT ANYWHERE ACROSS WRN WA. A FORECAST UPDATE WAS ISSUED TO INCREASE THUNDERSTORM COVERAGE AND ALSO INDICATE MORE CLOUD COVER. MARINE CLOUDS ALONG THE COAST MOVED INTO THE SW INTERIOR AND MOST OF PUGET SOUND EARLY THIS MORNING. CLOUD TOPS ARE ONLY AROUND 1500 FEET SO THE COMBINATION OF DAYTIME HEATING AND INSTABILITY ALOFT SHOULD EASILY BREAK THIS UP OVER THE NEXT COUPLE HOURS. THE MARINE INFLUENCE WILL HINDER TEMPERATURES WITH HIGH TEMPERATURES IN THE 70S INLAND. IF CLOUDS AND PRECIPITATION ARE MORE THAN EXPECTED THEN HIGHS COULD BE A FEW DEGREES COOLER THAN FORECAST. THE UPPER LEVEL LOW WILL SHIFT SWD INTO NW OREGON TONIGHT WHICH STILL KEEPS WA IN A FAVORED DIFFLUENT FLOW REGIME WITH ELY FLOW ALOFT. MODELS STILL KEEP THE MID/UPPER LEVEL QUITE UNSTABLE...INCREASINGLY SO FROM AROUND SEATTLE SWD. HAVE EXPANDED THUNDERSTORM COVERAGE AS WELL FOR TONIGHT ACROSS MOST THE AREA. ONSHORE FLOW WILL CONTINUE TONIGHT WITH MARINE CLOUDS FORMING ACROSS MUCH OF THE INTERIOR. CLOUDS MAY BE PATCHY IF THERE IS A LOT OF CONVECTION. N-NE FLOW ALOFT DEVELOPS OVER WA ON SATURDAY AS THE UPPER LOW GRADUALLY SHIFTS FURTHER S AND E AWAY FROM OUR AREA. HOWEVER...THERE WILL BE RESIDUAL MOISTURE AND DIURNAL INSTABILITY WITH MORE SUN EXPECTED. THIS COULD AGAIN BE SOME THUNDERSTORMS OVER THE MOUNTAINS...POSSIBLY DRIFTING INTO THE LOWLANDS AS FAR THE I-5 CORRIDOR. THERE WILL BE A BRIEF REPRIEVE FROM THE THREAT OF SHOWERS AND THUNDERSTORMS SATURDAY NIGHT AND MOST OF SUNDAY. ANOTHER STRONG CLOSED UPPER LOW ALONG THE B.C. COAST WILL START TO DIVE SWD TOWARD WA SUNDAY MORNING. THIS WILL CREATE STRONG ONSHORE FLOW CONDITIONS WITH A DEEP MARINE LAYER EXPECTED. IN FACT...ONSHORE FLOW MAY BE STRONG ENOUGH SO THAT MOST AREAS WILL PROBABLY NOT BREAK OUT. THIS WILL CAUSE HIGH TEMPERATURES TO REMAIN STUCK IN THE 60S AND LOW 70S. THE UPPER LOW WILL MOVE OVER WA LATER SUNDAY AND SUNDAY NIGHT. THIS COULD CREATE ENOUGH INSTABILITY FOR SHOWERS AND THUNDERSTORMS. WILL LOOK AT POSSIBLY INCREASING POPS AND THUNDERSTORM COVERAGE FOR THIS TIME PERIOD WITH THE AFTERNOON FORECAST PACKAGE. MERCER .LONG TERM...PREVIOUS DISCUSSION FOLLOWS...EXTENDED MODELS REMAINING CONSISTENT WITH THEIR SOLUTIONS IN THE 00Z MODEL RUN. BOTH THE GFS AND THE ECMWF KEEP THE NEXT UPPER LEVEL LOW IN THE VICINITY MONDAY AND TUESDAY CONTINUING THE LOW LEVEL ONSHORE FLOW WITH A THREAT OF CONVECTION ESPECIALLY OVER THE MOUNTAINS. THE LOW DRIFTS SOUTH LATER TUESDAY INTO WEDNESDAY. THE ECMWF AND GFS SOLUTION BEGIN TO DIVERGE ON WEDNESDAY WITH THE GFS TRYING TO BUILD A RIDGE WHILE THE ECMWF KEEPS WESTERN WASHINGTON IN A TROUGH. EVEN WITH THE RIDGING THE GFS KEEPS WESTERN WASHINGTON IN A ONSHORE FLOW PATTERN. WILL STAY WITH THE CLOSE TO CLIMATOLOGY FORECAST FOR WEDNESDAY AND THURSDAY AND STAY WITH THE SOMEWHAT WARMER HIGHS FOR THOSE DAYS VERSUS MONDAY AND TUESDAY. FELTON && .AVIATION...UPPER LEVEL LOW OVER SOUTHWEST WASHINGTON WILL REMAIN IN THE AREA THROUGH TONIGHT. THERE ARE SEVERAL MID AND UPPER LEVEL DECKS OF CLOUDS ASSOCIATED WITH THIS LOW. THE AIR MASS IS UNSTABLE AND THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT...ESPECIALLY OVER NORTHERN AND WESTERN AREAS. AT THE SURFACE LOW LEVEL MARINE STRATUS PENETRATED TO PUGET SOUND OVERNIGHT. THIS WILL EVAPORATE BACK TO THE COAST BY NOON. STRATUS WILL RETURN LATE TONIGHT BUT MAY NOT BE QUITE AS EXTENSIVE AS TODAY. CEILINGS ARE 500 TO 1000 FEET UNDER THE STRATUS. HIGHER CEILINGS RANGE FROM 4K FT TO 8K FT. THE STRATUS WILL VANISH BUT THE HIGHER CEILINGS WILL BECOME MORE WIDESPREAD IN THE AFTERNOON...THEN DIMINISH SOMEWHAT OVERNIGHT. KSEA...STRATUS WILL BE GONE 17Z-18Z THEN RETURN AFTER 12Z TONIGHT. MID AND HIGH LEVEL CLOUDS WILL PERSIST. THERE IS A SLIGHT RISK OF THUNDERSTORMS IN THE AFTERNOON AND EVENING. WIND WILL BE SOUTHWEST 4-8 KT BECOMING NORTHWEST IN THE AFTERNOON. CHB && .MARINE...ONSHORE FLOW WILL CONTINUE TO GIVE SMALL CRAFT ADVISORY WINDS TO THE CENTRAL AND EAST STRAIT EACH AFTERNOON AND EVENING THROUGH THE WEEKEND. ONSHORE GRADIENTS APPEAR TO BE LIGHTER EARLY NEXT WEEK. SCATTERED THUNDERSTORMS OVER THE INLAND WATERS ARE IN THE FORECAST TODAY THROUGH SATURDAY. CHB && .SEW WATCHES/WARNINGS/ADVISORIES... WA...NONE. PZ...SMALL CRAFT ADVISORY CENTRAL AND EAST STRAIT. && WWW.WEATHER.GOV/SEATTLE FOR THE GRAPHICAL AFD...VISIT WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML
The Seattle radar (KATX), 81 km away, was scanning. The volume nearest the first event began at 19:26 UTC.
2 lightning. Local standard time, as filed.
A lightning strike cause minor damage to a home and minor injuries to the homeowner when he was blown across the room. After the lightning strike a fire started which caused nearly $100,000 damage to the house.
Lightning strike cause minor damage to computers that are used to operate the Hood Canal Bridge.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2012Every state in 2012This day in weather historyWarnings in Washington, July 2012
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: 403826, 403825.