A lee side trough set up along the east side of the Oregon Cascades and mountain wave wind gusts were associated. Damage and power outages were reported across portions of central Oregon.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 PDT wrote it up.
A lee side trough set up along the east side of the Oregon Cascades and mountain wave wind gusts were associated. Damage and power outages were reported across portions of central Oregon.
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 Feb 9, 9:12 AM PST, 3 hours 18 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
912 AM PST MON FEB 9 2015
UPDATED AVIATION DISCUSSION
.UPDATE...CURRENT WATER VAPOR THIS MORNING SHOWS AN UPPER LEVEL
LOW COMING ASHORE ALONG THE WASHINGTON AND OREGON COASTLINE. RADAR
CONTINUES TO SHOW RAIN SHOWER ACTIVITY SPREADING ACROSS THE REGION
WITH CLEARING IMMEDIATELY EAST OF THE OREGON CASCADES. A LOW LEVEL
JET BETWEEN 50 TO 70 KNOTS IS ABOUT TO CROSS OVER THE CASCADES
THIS MORNING AND HELP DEVELOP A LEE SIDE TROUGH. CROSS SECTIONS
IN CENTRAL AND NORTH CENTRAL OREGON SUGGESTS THAT MOUNTAIN WAVES
MAY OCCUR THROUGH ABOUT SUNSET THIS EVENING. HAVE EXPANDED THE
HIGH WIND WARNING AREA TO INCLUDE THE EAST SLOPES OF THE CASCADES
GIVEN LATEST MODEL GUIDANCE PROJECTIONS FOR WINDS BUT HAVE LEFT
ALL OTHER AS IS IN PLACE. MORE DETAILS CONCERNING THE WIND EVENT
FOR LOCATIONS ALONG AND JUST EAST OF THE CASCADES CAN BE FOUND IN
PRODUCT PDXNPWPDT. BIEDA
&&
.AVIATION...18Z TAFS...MOSTLY VFR CONDITIONS ARE EXPECTED THROUGH
THE FORECAST PERIOD. WIDESPREAD RAIN WILL OCCUR TODAY INTO THIS
EVENING WITH SOME LOCAL MVFR VSBYS POSSIBLE. CEILINGS WILL GENERALLY
BE 4-6 THOUSAND FEET. WINDS WILL BE STRONG FROM THE S-SW AT KBDN AND
KRDM WITH GUSTS OF 35-40 KT POSSIBLE THROUGHOUT THE DAY BEFORE
DIMINISHING THIS EVENING. 78
&&
.PREV DISC... /ISSUED 333 AM PST MON FEB 9 2015/
SHORT TERM...TODAY THROUGH WEDNESDAY...UPPER LEVEL LOW PRESSURE
SYSTEM OFF THE OR/WA COAST WILL MOVE INLAND TODAY. CURRENT WATER
VAPOR IMAGERY SHOWS ENHANCEMENT OVER THE EASTERN PORTION OF THE
FORECAST AREA AND ALONG THE EAST SLOPES OF THE CASCADES. HAVE
BUMPED POPS UP QUITE A BIT FOR THE FIRST PERIOD ALONG THE MOUNTAIN
ZONES TO ACCOUNT FOR THE MOISTURE SURGE. BY LATE MORNING INTO THE
AFTERNOON THE LOW WILL MOVE INLAND AND A COLD FRONT WILL PUSH ACROSS
THE AREA. POPS ALONG THE VALLEYS WILL BE REDUCED INTO THE LOW
CHANCE CATEGORY AS WESTERLY FLOW WILL FAVOR RAINSHADOWING ALONG THE
CASCADES. COLD AIR ADVECTION WILL BRING SNOW LEVELS DOWN TO ABOUT
4000-4500FT AND LIGHT SNOW ACCUMULATION WILL BE POSSIBLE ALONG THE
HIGHER PORTIONS OF THE BLUE MOUNTAINS. VERY HIGH ELEVATIONS ABOVE
7000 FT ALONG THE EAGLE CAPS COULD PICK UP 5-10 INCHES OF NEW SNOW
IN THE NEXT 24 HOURS.
AS THE FRONT PUSHES ACROSS THE AREA THIS AFTERNOON...A LEE SIDE
TROUGH WILL SET UP EAST OF THE OREGON CASCADES. LATELY CONCERN HAS
BEEN GROWING THAT A MOUNTAIN WAVE DOWNSLOPE WINDSTORM IS
POSSIBLE...MAINLY FOR THE BEND...REDMOND...MADRAS...AND WARM SPRINGS
AREA. THE MOST FAVORABLE TIME FOR THIS WILL BE BETWEEN 10AM AND
7PM. A WIND ADVISORY IS CURRENTLY IN EFFECT FOR THESE AREAS FROM
8AM THROUGH 8PM THIS EVENING. WILL BE LOOKING INTO THE NEWEST MODEL
RUNS THE REST OF THE MORNING SHIFT AND MAY DECIDE TO UPGRADE THE
ADVISORY TO A WARNING. ADDITIONALLY...THE POTENTIAL FOR DOWNSLOPE
WINDS ALONG NORTH CENTRAL OREGON AREAS LIKE...MAUPIN...DUFUR...GRASS
VALLEY...KENT...AND SHANIKO CANT BE RULED OUT EITHER. BUT CONFIDENCE
IS NOT HIGH ENOUGH FOR A WARNING. WILL LIKELY GO OUT WITH AN
ADVISORY LATER THIS MORNING. ANY WIND UPGRADES WILL LIKELY GO OUT
BETWEEN 6-7AM. ANOTHER AREA ALONG THE JOHN DAY VALLEY...MAINLY IN
MITCHELL OREGON...COULD SEE DOWNSLOPE WINDS AS WELL. SINCE IT IS
ISOLATED TO A SMALLER AREA AND THE CONFIDENCE IS NOT NEARLY HIGH
ENOUGH...MAY JUST GO OUT WITH A NOW CAST...BUT HAVE ADDED GUSTS UP
TO 50 MPH FOR THE AREA IN THE POINT AND CLICK FORECAST WHICH WILL BE
AVAILABLE AFTER 4AM.
AS THE SYSTEM EXITS THE AREA TONIGHT NORTHWEST FLOW WILL SET IN AS
HIGH PRESSURE BUILDS OVER THE AREA. THIS WILL LEAD TO A SIGNIFICANT
DECREASE IN POPS BY TUESDAY AFTERNOON. THE FORECAST IS COMPLETELY
DRY BY TUESDAY EVENING. WITH THE COMBINATION OF CLEARING SKIES
TUESDAY NIGHT AND THE COLDER AIR THAT WILL BE IN PLACE...PATCHY
MORNING FOG WILL BE POSSIBLE WEDNESDAY MORNING. ANTICIPATE THAT THE
FOG WILL BURN OFF AFTER 10 AM. WEBER
LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...A RIDGE WILL PERSIST
OVER EASTERN WASHINGTON AND OREGON WEDNESDAY NIGHT THROUGH FRIDAY.
SUBSIDENCE FROM THE RIDGE WILL BRING MOSTLY DRY CONDITIONS WITH MILD
DAYTIME TEMPERATURES AND LIGHT WINDS. A WEAK DISTURBANCE WILL MOVE
OVER THE TOP OF THE RIDGE THURSDAY AND MAY TRIGGER A FEW SHOWERS
NEAR THE CASCADE CREST IN WASHINGTON. THE RIDGE AXIS WILL SHIFT EAST
SATURDAY BUT THE DRY CONDITIONS SHOULD PERSIST UNTIL AT LEAST
SUNDAY. AN UPPER LEVEL LOW IN CANADA WILL MOVE SOUTHEAST INTO
WASHINGTON SUNDAY (GFS) OR MONDAY (ECMWF). THIS WILL BRING COOLER
TEMPERATURES AND A CHANCE OF MOUNTAIN SHOWERS TO THE CASCADES AND
NORTHEAST OREGON MOUNTAINS. COONFIELD
AVIATION...12Z TAFS...MAINLY VFR CONDITIONS EXPECTED AT ALL TAF
SITES. TEMPO IFR CIGS/VSBY ARE POSSIBLE IN LIGHT RAIN AND MIST AT
KDLS UNTIL 17Z...THEN MVFR CIGS POSSIBLE AT KDLS AFTER THAT. MVFR
CIGS ALSO POSSIBLE AT KALW AND KPDT AFTER 09/20Z. INCREASING SHOWERS
THROUGH THE DAY. THE OTHER MAIN WEATHER IMPACT WILL BE THE WINDS. AT
KPSC...KPDT...KALW WINDS WILL INCREASE OUT OF THE SOUTHWEST TO
BETWEEN 15-30KTS AFTER 09/20-21Z. AT KBDN AND KRDM EXPECT PEAK
SOUTHWEST WINDS BETWEEN 30-35KTS FROM 09/16Z THROUGH 09/24Z BEFORE
GRADUALLY DECREASING INTO MONDAY EVENING. SPORADIC HIGHER GUSTS ARE
POSSIBLE. WINDS WILL BE AOB 10 KT KDLS AND KYKM. 76
&&
.PRELIMINARY POINT TEMPS/POPS...
PDT 60 43 55 38 / 70 70 30 0
ALW 58 45 52 39 / 90 80 30 0
PSC 56 46 55 39 / 60 50 20 0
YKM 52 40 53 36 / 70 40 20 0
HRI 58 45 54 39 / 60 60 20 0
ELN 50 38 54 35 / 70 50 20 0
RDM 53 34 52 33 / 60 40 10 0
LGD 55 38 52 32 / 100 60 40 0
GCD 57 37 53 32 / 100 50 30 0
DLS 53 42 54 38 / 80 60 20 0
&&
.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 8 PM PST THIS EVENING ORZ508-510.
HIGH WIND WARNING UNTIL 8 PM PST THIS EVENING ORZ509-511.
WA...WIND ADVISORY UNTIL 8 PM PST THIS EVENING WAZ521.
&&
FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON
98/76/76The national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
Power outage due to high winds for 1300+ customers in the 97702 area of Bend.
Bend Television reported trees down from high winds in the Sunriver and La Pine area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2015Every state in 2015This day in weather historyWarnings in Oregon, February 2015
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: 551400, 551401.