A tight surface gradient stretching from Yellowstone to the Oregon coast caused winds to become strong and gusty over much of Eastern Oregon and parts of Southwest Idaho on the 13th.
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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.
A tight surface gradient stretching from Yellowstone to the Oregon coast caused winds to become strong and gusty over much of Eastern Oregon and parts of Southwest Idaho on the 13th.
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 Oct 13, 8:37 PM MST, 23 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BOISE ID 937 PM MDT TUE OCT 13 2009 .DISCUSSION...MINOR UPDATES FOR WINDS 15-25G45 MPH ACROSS THE AREA TONIGHT. DEEP MOISTURE ACROSS SW IDAHO WITH UPPER VORT LIFTING NE FROM SE OREGON AT 9 PM THROUGH THE CENTRAL MOUNTAINS AROUND 3 AM...FOR UP TO A FOOT OF SNOW ABOVE 8000 FT AROUND TRINITY/ATLANTA SUMMITS BY MORNING. WINDS HAVE GUSTED TO 49 MPH IN ROME OREGON...36 MPH IN NAMPA/THANKS SPOTTER...AND 39 MPH AT THE BOISE AIRPORT 850 PM MDT. BURNS HAS PICKED UP 0.45 INCHES OF RAIN SINCE MIDNIGHT LST AND MCCALL 0.22...BOISE WFO 0.13 HUNDREDTHS. LOCALLY VERY WINDY CONDITIONS TONIGHT SLACKEN TO BREEZY AND MILD WEDNESDAY AFTERNOON WITH PRECIP FAVORING CENTRAL IDAHO MOUNTAINS AS THE OFFSHORE AND CONVECTIVELY ACTIVE DEEP LOW SFC-ALOFT LIFTS SLOWLY NNE WEDNESDAY. REMAINDER OF FORECAST ON TRACK WITH WARMING AND DRYING AND 68-72 DEGREE HIGHS FOR BOISE THURSDAY THROUGH SATURDAY. && .AVIATION...AREAS OF MVFR CONDITIONS AND MOUNTAIN OBSCURATION IN RAIN. RAIN WILL CONTINUE THROUGH THE NIGHT WITH SNOW LEVEL NEAR 8000 FT MSL. SOUTHEAST WINDS FROM THE SURFACE TO 9000 FT MSL BECOMING SOUTHWEST ABOVE 10K FT MSL. SURFACE WIND GUSTS TO NEAR 30 KNOTS...GUSTS TO 40 KNOTS ON RIDGES WITH GUSTS TO NEAR 50 KNOTS NEAR 12K FT MSL. && .PREV DISCUSSION... SHORT TERM...TONIGHT THROUGH THURSDAY...LARGE PACIFIC STORM SYSTEM MOVING NORTHEAST FROM CALIFORNIA WITH WARM FRONTAL RAIN AND CLOUDS SPREADING ACROSS THE FORECAST AREA AT THIS TIME. BULK OF MOISTURE FROM THIS FEATURE APPEARS TO BE CROSSING THE AREA PRESENTLY WITH LITTLE QPF EXPECTED LOCALLY IN THE BOISE AREA. HOWEVER...AREAS TO THE WEST AND NORTH OF BOISE LIKELY TO RECEIVE MODERATE AMOUNTS OF QPF IN THE NEXT FEW HOURS AND OVERNIGHT WITH A TREND TO DRYING BY MORNING AS WARM SECTOR APPROACHES FROM THE SOUTHWEST. STRONG LOW LEVEL EAST WINDS AND SOUTHWEST WINDS ALOFT WILL ALSO ACT TO SHADOW AREAS TO THE LEE OF THE MOUNTAINS IN THE UPPER TREASURE VALLEY WHILE OTHER REGIONS AWAY FROM SHADOWING EFFECTS COULD RECEIVE SUBSTANTIAL AMOUNTS OF RAIN. NO HYDRO ISSUES ARE ANTICIPATED WITH RECENT DRY CONDITIONS AND STRATIFORM CHARACTER OF PRECIP EXPECTED. WINDS BELOW ADVISORY CRITERIA TONIGHT BUT WINDY NONETHELESS OVER THE HIGHLANDS OF SOUTHWEST IDAHO AND SOUTHEAST OREGON. WARM SECTOR ACROSS THE AREA WEDNESDAY WITH OCCLUDED PACIFIC FRONT LIFTING NORTHWARD. CWA LIKELY TO SEE A LIMITED AMOUNT OF SUNSHINE IN SOUTHERN ZONES IN WARM SECTOR AND MILDER TEMPERATURES RISING INTO THE MID 60S. WINDS EXPECTED TO LIGHTEN WEDNESDAY BEHIND OCCLUDED FRONT BUT REMAINING BREEZY IN MANY AREAS. SNOW LEVELS VERY HIGH IN THIS EVENT AS SYSTEM IS MILD BY ORIGIN...THUS SNOWFALL CONFINED TO ONLY TO THE HIGHEST MOUNTAIN PEAKS. LONG TERM...THURSDAY NIGHT THROUGH TUESDAY...UPPER RIDGE WILL BUILD ACROSS THE WESTERN STATES BEGINNING THURSDAY BRINGING THE WARMEST WX SO FAR THIS MONTH. HIGH TEMPERATURES THURSDAY THROUGH SATURDAY ARE FORECAST TO REACH THE UPPER 50S TO NEAR 70. GUIDANCE TEMPERATURES FOR FRIDAY AND SATURDAY CONTINUE TO SHOW UPPER 60S/LOW 70S WHICH LOOKS A BIT TOO WARM AS CLOUD COVER AND POOR MIXING SHOULD LIMIT HEATING. RIDGE PUSHES STORM TRACK NORTH WITH A SLIGHT CHANCE OF PRECIPITATION ONLY IN OUR NRN CWA BORDER. GOOD MODEL AGREEMENT WITH NEXT PACIFIC TROUGH...PROGGED TO MOVE INTO OUR AREA SUNDAY NIGHT INTO MONDAY. && .BOI WATCHES/WARNINGS/ADVISORIES... ID...NONE. OR...NONE. && WEATHER.GOV/BOISE DISCUSSION...VM AVIATION.....JA PREV SHORT TERM...GS PREV LONG TERM....JS/LH
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BOISE ID 548 AM MDT TUE OCT 13 2009 IDZ011>016-028>030-033-ORZ061>064-141200- WEST CENTRAL MOUNTAINS-LOWER TREASURE VALLEY ID-BOISE MOUNTAINS- UPPER TREASURE VALLEY-SOUTHWEST HIGHLANDS-WESTERN MAGIC VALLEY- CAMAS PRAIRIE-OWYHEE MOUNTAINS-SOUTHERN TWIN FALLS COUNTY- UPPER WEISER RIVER-HARNEY COUNTY-BAKER COUNTY-MALHEUR COUNTY- LOWER TREASURE VALLEY OR- 548 AM MDT TUE OCT 13 2009 /448 AM PDT TUE OCT 13 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL IDAHO...SOUTHWEST IDAHO...WEST CENTRAL IDAHO...NORTHEAST OREGON AND SOUTHEAST OREGON. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
The Rome, Oregon ASOS along U.S. Highway 95 recorded a wind gust of 62 M.P.H. at 823 P.M. P.D.T.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2009Every state in 2009This day in weather historyWarnings in Oregon, October 2009
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: 199790.