Rainfall and snow melt combined to increase the flow on the Payette River to minor flood stage.
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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 BOI wrote it up.
Rainfall and snow melt combined to increase the flow on the Payette River to minor flood stage.
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 Boise, ID wrote its last area forecast discussion before the first event at Mar 16, 7:18 PM MST, 4 hours 42 minutes earlier.
Area Forecast Discussion National Weather Service Boise ID 818 PM MDT Thu Mar 16 2017 .DISCUSSION...A quiet weather evening and overnight period on tap as weak ridging folds over the Pacific Northwest. Skies will be mostly clear overnight and will combine with a cooler airmass to create much cooler overnight temperatures. The main weather concern remains minor flooding across portions of the area. Warnings and advisories are in effect with the latest details available on our website www.weather.gov/boise. && .AVIATION...VFR. Increase in mid-upper level cloud cover over night. Isolated showers begin pushing in late Friday night. Surface winds, variable 10 kts or less through Friday 18z then 10-20 kts. Winds aloft to 10k feet MSL, southwest 20-45 kts. Weekend Outlook...Increased shower activity Friday night into Saturday mostly for northern portions of the CWA. Showers increase in coverage Saturday night and continue through Sunday. Snow levels above 5500 feet MSL through Sunday afternoon then drop to between 3500-6000 feet MSL in northwest portions of the CWA. && .PREV DISCUSSION... SHORT TERM...Tonight through Saturday...Cool conditions tonight under dry westerly flow. It's warm again on Friday as a low amplitude ridge builds over the Pac NW. Moisture in the ridge will feed cloud development so most areas will see periods of clouds through the day, but this won't stop temperatures from reaching 10-15 degrees above normal. Friday night is mild as cloud cover increases ahead of an approaching upper trough. Showers develop across the area on Saturday as the trough moves inland. The focus of higher precipitation amounts will fall across east- central Oregon and the west-central Idaho mountains which are favorably located in regard to the upper dynamics. Can't rule out a thunderstorm Saturday afternoon, but with expected cloud cover and cooler surface conditions it is a low probability at this time. Winds will become gusty Saturday afternoon especially across the open terrain in southeast Oregon and far southwest Idaho. With strong winds aloft could also see gusty winds accompany afternoon showers. Temperatures cool 4-8 degrees from Friday to Saturday due to increased cloud cover and precipitation. Snow levels will be around 8kft for the first round of precipitation on Saturday. LONG TERM...Saturday night through Thursday...Active weather pattern to continue through the extended period with several troughs moving through the region. Exiting upper level trough will bring drier conditions on Sunday though the frontal boundary associated with the trough remains just south of the area. Showers are expected on Monday as the front lifts northward ahead of another moist upper level trough. More significant precipitation is expected Tuesday through Wednesday as the upper level trough moves on shore. Snow levels will range from 7000 feet to 8000 feet MSL Tuesday lowering to around 5500 feet MSL Thursday. The trough will be followed be a upper level ridge for relatively drier conditions on Thursday. Temperatures gradually warm to about 8 degrees above normal Monday and Tuesday ahead of the trough. They cool back to normal behind the upper level trough on Wednesday. && .BOI WATCHES/WARNINGS/ADVISORIES... ID...None. OR...None. && www.weather.gov/Boise www.facebook.com/NWSBoise www.twitter.com/NWSBoise DISCUSSION...MC AVIATION.....JC PREV SHORT TERM...DG PREV LONG TERM....JS
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
Flooding occurred along the Payette River around the Emmett, Idaho area and surrounding fields and roads.
Flooding occurred along the Payette River around the Payette, Idaho area and surrounding fields and roads.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2017Every state in 2017This day in weather historyWarnings in Idaho, 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: 697154, 697158.