Heavy rain and snow melt resulted in flooding along portions of the Walla Walla river.
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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 episode as NWS PDT wrote it up.
Heavy rain and snow melt resulted in flooding along portions of the Walla Walla river.
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 Pendleton, OR wrote its last area forecast discussion before the first event at Mar 10, 3:50 PM PST, 1 hour 10 minutes earlier.
Area Forecast Discussion...Updated National Weather Service Pendleton OR 350 PM PST Fri Mar 10 2017 Updated aviation discussion .SHORT TERM...A ridge of high pressure will build into the region with mainly dry conditions expected into tonight except for the area mountains that could experience an isolated shower. Despite some patchy fog tonight the drier conditions will give way to a low pressure system that will spread mid and high level clouds to the region Saturday into Saturday night. Snow levels will remain high and the pcpn should remain mostly liquid. The low pressure system along with most of its moisture will move away from the area Sunday with lingering showers once again in the area mountains into Sunday night. .LONG TERM...Monday through Friday...An upper ridge over the area will get flattened and pushed east Monday and Monday night as a system moves over the ridge. During the day there will be a chance of rain in the mountains and a slight chance in the lower elevations becoming a chance of rain across the area Monday night. Snow levels will rise to above 8000 feet. The lower elevations will generally see around a tenth of an inch of rain but the Blue Mountain Foothills could see up to two tenths of an inch and the mountains up to a half inch. Tuesday will see a chance of rain in the morning before rain tapers off to showers in the afternoon. Tuesday night will be a break between systems before another system arrives on Wednesday with another chance of rain through Wednesday night. Snow levels will remain above 7000 feet. A slight chance of showers will linger in the mountains Thursday but otherwise Thursday and Thursday night will be another break between systems. Models are in good agreement in having another system arrive Friday with a chance of rain across the area. Temperatures will be at or slightly above seasonal norms with highs in the 50s and lower 60s Monday through Wednesday then cooling to the upper 40s and 50s Thursday and Friday. perry && .AVIATION...00Z TAFs...VFR conditions will continue for the next 24 hours. Tonight will see scattered to broken cirrus above 15000 feet AGL with few to scattered mid level clouds above 6000 feet AGL. The next system will be approaching the area after 15Z with lowering ceilings but showers will mainly hold off until after 18Z. All TAF sites have -shra beginning 17-20Z and continuing through 00Z with ceilings from 4000-7000 feet AGL. Winds are decreasing this afternoon but 10-20 kt winds with gusts to 25 kts will continue at all TAF sites except KRDM and KBDN for a few more hours. After 03Z, winds will remain below 15 kts through 00Z tomorrow. Perry && .HYDROLOGY...Previous days rain over northeast Oregon and southeast Washington had increased runoff with small streams and creeks running high and fast and a Flood Advisory remains in effect for these areas today. In Central Washington there is still a low to mid elevation snowpack and as warmer temperatures continue in this area with periods of rain expected through the next 7 days we could see some localized flooding for this area. && .PRELIMINARY POINT TEMPS/POPS... PDT 36 51 40 56 / 0 40 50 10 ALW 39 52 42 56 / 0 40 50 10 PSC 35 50 40 58 / 0 40 30 10 YKM 32 50 34 55 / 0 50 20 10 HRI 34 50 40 58 / 0 40 30 10 ELN 30 45 33 49 / 0 60 30 10 RDM 30 57 35 59 / 0 20 20 10 LGD 35 53 41 55 / 0 30 60 10 GCD 33 56 37 56 / 0 30 40 10 DLS 35 51 41 57 / 0 40 40 20 && .PDT WATCHES/WARNINGS/ADVISORIES... OR...None. WA...None. && 97/83/83
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
The Walla Walla river near Touchet (flood stage 13.0 feet) crested at 13.6 feet at 0400 on March 11. Then fell below flood stage around 1300 on the same day.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2017Every state in 2017This day in weather historyWarnings in Washington, March 2017
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: 683626.