Heavy rainfall in early June pushed many streams and rivers to near or above flood stage. Flooding occurred on Little Creek in Union, Mill Creek in Cove, Imnaha River, John Day River, Wallowa River, and Grand Ronde River.
Every event with a place to put it; 1 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.
Heavy rainfall in early June pushed many streams and rivers to near or above flood stage. Flooding occurred on Little Creek in Union, Mill Creek in Cove, Imnaha River, John Day River, Wallowa River, and Grand Ronde River. A landslide was reported along the Lostine River near Turkey Flats.
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 Jun 2, 1:00 PM PST, 4 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PENDLETON OR 200 PM PDT WED JUN 2 2010 .SHORT TERM...TONIGHT THROUGH SATURDAY...MODELS AGREE ON UNSEASONABLY WET PATTERN TO CONTINUE AND TIMING OF RAINFALL WITH 12 TO 18 HOUR BREAKS BETWEEN SHORTWAVES. SATELLITE WATER VAPOR IMAGERY SHOWS EXTENSIVE PLUME OF MOISTURE FROM EASTERN ASIA THROUGH PACIFIC INTO NORTHWEST STATES. RAIN OVER MAINLY THE SOUTH EASTERN 2/3 OF FORECAST AREA THIS EVENING TO MOVE EAST AND END OVER THE NORTHEAST OREGON MOUNTAINS AFTER MIDNIGHT. ONLY A FEW MOUNTAIN SHOWERS ON THURSDAY...BUT TURNING WET AGAIN THURSDAY NIGHT AS NEXT SHORTWAVE TROUGH PUSHES MOISTURE INTO CASCADES IN THE EVENING AND OVER THE REST OF THE AREA AFTER MIDNIGHT AND CONTINUING FRIDAY. MOST AREAS WILL GET 1/4 TO 1/2 INCH ADDITIONAL RAIN FROM THIS NEXT SYSTEM WITH 1/2 TO 1 INCH IN THE MOUNTAINS. AIRMASS TO BECOME UNSTABLE OVER NORTHEAST OR AND SOUTHEAST WA FRIDAY AFTERNOON AND HAVE CONTINUED THUNDER IN MOUNTAINS. ANOTHER BREAK IN THE RAINFALL STARTS FRIDAY NIGHT AND CONTINUES INTO SATURDAY. TEMPERATURES CONTINUE RATHER MILD WITH BELOW NORMAL DAYTIME TEMPERATURES AND SLIGHTLY ABOVE NORMAL OVERNIGHT LOWS. HULL .LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY. UNSETTLED WET WEATHER WILL PERSIST THROUGH THE EXTENDED AS A NUMBER OF WEATHER SYSTEMS MOVE THROUGH THE REGION. THE STRENGTH AND TIMING BECOME INCONSISTENT AMONG THE VARIOUS MODELS. CURRENT TIMING SUGGESTS A SYSTEM TO BE EXITING THE AREA SATURDAY NIGHT WITH SOME DRYING SUNDAY AND MONDAY WITH POSSIBLE SYSTEM MOVING INTO THE REGION ON TUESDAY. TEMPERATURES WILL BE NEAR TO BELOW SEASONAL LEVELS. ML && .HYDROLOGY...RAIN AMOUNTS OF NEARLY ONE INCH HAVE FALLEN ACROSS THE BLUE MOUNTAINS TODAY AND ADDITIONAL RAIN OF ONE-QUARTER TO ONE-HALF INCH IS EXPECTED TONIGHT. THIS WILL CAUSE RIVERS AND STREAMS INCLUDING THE UMATILLA AND GRANDE RONDE RIVERS IN OREGON AND MILL CREEK AND THE WALLA WALLA RIVERS IN WASHINGTON TO SEE SHARP RISES IN WATER LEVELS OVERNIGHT...BUT NONE ARE EXPECTED TO RISE ABOVE FLOOD STAGE. ML && .AVIATION...00Z TAFS. SECOND SURGE OF MOISTURE WILL BE PUSHING THROUGH MAINLY OREGON THIS EVENING. LIGHT STRATIFORM RAIN WILL REPLACED WITH ANOTHER ROUND OF SHOWERS WITH MVFR CEILINGS WITH THE HEAVIER SHOWERS THROUGH O6Z THIS EVENING. SOME DECREASE IN CLOUDS WILL BE SEEN A KDLS AND KYKM AFTER 06Z WITH WINDS INCREASING TO 10 TO 20 KTS. IMPROVING CONDITIONS WILL THEN SPREAD ACROSS REMAINDER OF AREA AFTER 12Z THURSDAY. && .PRELIMINARY POINT TEMPS/POPS... PDT 50 68 53 70 / 70 20 70 60 ALW 52 70 56 71 / 70 20 60 60 PSC 52 72 57 73 / 50 10 60 60 YKM 44 68 51 68 / 40 10 60 60 HRI 50 72 54 73 / 50 10 60 60 ELN 45 67 51 66 / 40 10 60 60 RDM 42 65 52 64 / 60 20 70 50 LGD 48 64 51 66 / 70 20 70 60 GCD 47 66 52 66 / 70 30 70 60 DLS 52 71 55 68 / 40 10 70 50 && .PDT WATCHES/WARNINGS/ADVISORIES... OR...NONE. WA...NONE. && THREAT INDEX THURSDAY : GREEN FRIDAY : GREEN SATURDAY : GREEN GREEN: NONE OR LIMITED NEED FOR WATCHES, WARNINGS, OR ADVISORIES. YELLOW: A FEW WATCHES, WARNINGS, OR ADVISORIES POSSIBLE OR IN EFFECT. RED: NUMEROUS WATCHES, WARNINGS, OR ADVISORIES POSSIBLE OR IN EFFECT. FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT... WWW.WEATHER.GOV/PENDLETON 79/93/93
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 515 AM PDT WED JUN 2 2010 ORZ041>044-049-050-501>506-WAZ024-026>030-501-502-031145- EASTERN COLUMBIA RIVER GORGE OF OREGON-NORTH CENTRAL OREGON- CENTRAL OREGON-LOWER COLUMBIA BASIN OF OREGON-GRANDE RONDE VALLEY- WALLOWA COUNTY-FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON- NORTHERN BLUE MOUNTAINS OF OREGON- SOUTHERN BLUE MOUNTAINS OF OREGON- NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES-JOHN DAY BASIN- OCHOCO-JOHN DAY HIGHLANDS- EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-KITTITAS VALLEY- YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON- FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON- NORTHWEST BLUE MOUNTAINS OF WASHINGTON- EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON- EAST SLOPES OF THE SOUTHERN CASCADES OF WASHINGTON- 515 AM PDT WED JUN 2 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON. .DAY ONE...TODAY AND TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. A VERY MOIST SYSTEM WILL MOVE ACROSS THE REGION TODAY WITH MODERATE RAIN EXPECTED OVER THE AREA THROUGH THIS EVENING. THE RAIN WILL TAPER OFF TO SHOWERS OVERNIGHT. BREEZY WINDS ARE ALSO EXPECTED THIS AFTERNOON AND EVENING WITH THIS SYSTEM. AREAS OF MODERATE PRECIPITATION WILL CAUSE RIVERS TO RISE AND A COUPLE TO REACH BANKFULL. SEE PRODUCT PDXRVSPDT FOR DETAILS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. ANOTHER WET SYSTEM WILL MOVE ACROSS THE REGION THURSDAY NIGHT AND FRIDAY. A SLIGHT CHANCE OF THUNDERSTORMS IS POSSIBLE FRIDAY AFTERNOON AND EVENING OVER THE BLUE MOUNTAIN FOOTHILLS OF WASHINGTON...THE NORTHERN BLUE MOUNTAINS AND UNION AND WALLOWA COUNTIES. WESTERLY ONSHORE FLOW WILL KEEP CONDITIONS UNSETTLED INTO THE WEEKEND. THE CONTINUED MODERATE PRECIPITATION FOR THE NEXT FEW DAYS WILL CAUSE RIVERS TO CONTINUE TO RUN HIGH AND SOME RIVERS WILL REACH BANKFULL. SEE PRODUCT PDXRVSPDT FOR DETAILS. DRIER CONDITIONS ARE ANTICIPATED EARLY NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. GRAPHICAL FORECASTS OF WEATHER HAZARDS OUT TO SEVEN DAYS ARE DISPLAYED ON THE WORLD WIDE WEB AT: WWW.WRH.NOAA.GOV/PDT/CURRENTHAZARDS/HWO.HTML ALL LETTERS IN THE ABOVE URL ARE LOWER CASE.
The national radar mosaic for the moment the first event began.
7 flood, 1 debris flow. Local standard time, as filed.
Flooding along Little Creek damaged a few homes in Union.
The John Day River at Service Creek crested at 12.5 feet on June 5 at 5 am. Flood stage is 11.5 feet.
The Grande Ronde River at Troy crested 10 pm on June 4 at 10.8 feet. Flood stage is 10.0 feet.
The Imnaha River at Imnaha crested at 6.1 feet on June 4 at 730 pm. Flood stage is 5.5 feet.
Flooding reported in the Minam area with emergency crews sandbagging local businesses and removing debris from surrounding area. A USGS river gauge was destroyed.
Spotter reported flooding from Indian Creek along Indian Creek Road and surrounding fields.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2010Every state in 2010This day in weather historyWarnings in Oregon, June 2010
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: 238326, 238330, 238321, 238315, 238318, 238337, 238339, 238343.