1 avalanche, as filed by the National Weather Service.
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 Apr 18, 2:10 AM PST, 5 hours 20 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
310 AM PDT TUE APR 18 2006
.SYNOPSIS...A WEAK RIDGE OF HIGH PRESSURE OVER THE AREA TODAY WILL
KEEP AN APPROACHING FRONT OFF THE COAST. THE RIDGE WILL SHIFT EAST
TONIGHT AND WEDNESDAY ALLOWING THE SLOW MOVING FRONT TO GET CLOSE
ENOUGH TO WESTERN WASHINGTON FOR A CHANCE OF RAIN ON THE COAST. THE
FRONT WILL MOVE INLAND LATE THURSDAY WITH THE TRAILING UPPER LEVEL
TROUGH OF LOW PRESSURE MOVING THROUGH ON FRIDAY. ANOTHER RIDGE OF
HIGH PRESSURE WILL BUILD OVER THE AREA THIS WEEKEND.
&&
.SHORT TERM...WSR-88D SHOWS THE LAST REMAINING SHOWERS BETWEEN THE
SAN JUAN ISLAND AND PORT TOWNSEND. THESE SHOWERS WILL DISSIPATE IN
THE NEXT COUPLE OF HOURS. SATELLITE IMAGERY SHOWS WEAK UPPER LEVEL
RIDGE OVER THE AREA OUT AHEAD OF THE NEXT FRONT WHICH IS CURRENTLY
APPROACHING THE QUEEN CHARLOTTE ISLANDS AT 09Z. HUGE UPPER LEVEL LOW
BEHIND THE FRONT COVERS MOST OF THE GULF OF ALASKA WITH THE
ASSOCIATED TROUGH DIGGING SOUTH BETWEEN 150-160W. THE COMBINATION OF
THE RIDGE AND THE DIGGING TROUGH WILL MAKE IT HARD FOR THE FRONT TO
MAKE MUCH EASTWARD PROGRESS TODAY BUT THE MID LEVEL CLOUD DECK OUT
AHEAD OF THE FRONT WILL MOVE OVER WESTERN WASHINGTON THIS MORNING
AND REMAIN THROUGHOUT THE DAY. WILL MAKE SOME MINOR ADJUSTMENTS TO
THE WORDING OF THE FORECAST TODAY. LITTLE CHANGE IN THE FORECAST
BEYOND TODAY WITH THE FRONT STALLING OFFSHORE AS THE COLD UPPER
LEVEL TROUGH CONTINUES TO DIG IN THE EASTERN PACIFIC...A PATTERN
THAT HAS REPEATED ITSELF NUMEROUS TIMES THIS SEASON. BY TONIGHT THE
FRONT WILL BE CLOSE ENOUGH TO THE NORTH COAST FOR A CHANCE OF RAIN
THERE WHILE THE REMAINDER OF THE AREA WILL HAVE SOME MID/HI LEVEL
CLOUD COVER. FRONT CONTINUING TO BECOME MORE NORTH-SOUTH ORIENTED
NEAR THE COAST WEDNESDAY BEFORE FINALLY PUSHING INLAND LATE IN THE
DAY ON THURSDAY. THIS WILL RESULT IN ANOTHER DRY DAY FOR THE
INTERIOR ON WEDNESDAY WITH JUST SOME MID/HI LEVEL CLOUDINESS AND
JUST A CHANCE OF RAIN ON THURSDAY AS THE FRONT SLOWLY MOVES
EASTWARD. HIGHER POPS ALONG THE COAST...ESPECIALLY UP NEAR KUIL.
.LONG TERM...EXTENDED MODELS STAYING CONSISTENT WITH THE IDEA OF THE
UPPER LEVEL TROUGH MOVING INTO THE AREA ON FRIDAY. DIFFERENCES COME
ABOUT OVER THE WEEKEND WITH THE NEW GFS CLOSING OFF AN UPPER LEVEL
LOW OVER WASHINGTON ON SATURDAY. BOTH THE CANADIAN AND EURO MODEL
STICK WITH THE IDEA OF A BROAD UPPER LEVEL TROUGH OVER THE WEST
COAST WITH MOST OF THE ENERGY MOVING INLAND SOUTH OF WASHINGTON AND
AN UPPER LEVEL RIDGE BUILDING INTO BRITISH COLUMBIA. 00Z GFS
ENSEMBLES SHOW THE OPERATION SOLUTION WAY DIFFERENT FROM THE MEAN
FORECAST. THE MEAN FORECAST MATCHES UP WITH THE EURO AND CANADIAN
SOLUTION. GIVEN THIS WILL GO AHEAD AND STAY WITH THE PREVIOUS
FORECAST FOR A DRY WEEKEND WITH TEMPERATURES WARMING UP A FEW
DEGREES ABOVE NORMAL. 00Z GFS HAS SLOWED DOWN THE APPROACH OF THE
NEXT FRONT ON MONDAY BUT WITH THE LACK OF CONSISTENCY IN THE MODEL
CONFIDENCE ON DAY 7 NOT VERY HIGH. WILL LEAVE THE LONG TERM FORECAST
UNCHANGED. FELTON
&&
.AVIATION...CEILINGS WILL GENERALLY REMAIN ABOVE 7000 FT TODAY AND
TONIGHT...THOUGH MID AND HIGH LEVEL MOISTURE WILL GRADUALLY INCREASE
AS A PACIFIC FRONT MAKES ITS WAY INTO THE OFFSHORE WATERS. WIND AT
KSEA WILL BE SOUTHEAST 6-10 KT THIS MORNING...THEN SOUTHWEST 8-12 KT
THIS AFTERNOON. MCDONNAL
&&
.SEW WATCHES/WARNINGS/ADVISORIES...
.SMALL CRAFT ADVISORY COAST AND WEST ENTRANCE STRAIT.
WEATHER.GOV1 avalanche. Local standard time, as filed.
A back county skier triggered an avalanche which killed him.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Avalanche, West Slopes Northern Cascades and Passes | 2006-04-18 | Male | Outside/Open Areas | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2006Every state in 2006This day in weather historyWarnings in Washington, April 2006
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: 5497421.