1 hail, as filed by the National Weather Service.
Every event with a place to put it. 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 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 Jul 11, 1:30 PM PST, 4 hours 35 minutes earlier.
NORTHEAST OREGON/SOUTHEAST WASHINGTON FORECAST DISCUSSION NATIONAL WEATHER SERVICE PENDLETON OR 230 PM PDT WED JUL 11 2001 CLEARING LINE BEHIND THE EXITING SHORTWAVE TO OUR NORTHEAST IS QUICKLY FILLING IN WITH CUMULUS AND SHOWERS AND THUNDERSTORMS. VERY HEAVY RAIN HAS BEEN REPORTED WITH THE STORMS OVER DESCHUTES COUNTY...WHICH IS NOT A SURPRISE GIVEN THE PRECIPITABLE WATERS ON THE 12Z SOUNDING. EXPECT THESE TO CONTINUE TO DEVELOP THROUGH THE REMAINDER OF THE AFTERNOON...SOME WITH LOCALLY HEAVY RAIN. SECOND SHORTWAVE CURRENTLY OVER NORTHERN NEVADA/CALIFORNIA IS SETTING OFF MORE VIGOROUS THUNDERSTORMS OVER EXTREME SOUTH CENTRAL OREGON. THIS SHORTWAVE WILL MOVE NORTH AND BE NEAR THE OCHOCO MOUNTAINS AND JOHN DAY HIGHLANDS BY 03Z AND OVER THE COLUMBIA BASIN AROUND 06Z. THIS REINFORCING WAVE WILL PROVIDE THUNDERSTORMS INTO THE EVENING WITH STRATIFORM RAIN EXPECTED IN THE BASIN AND NORTHEAST ZONES THROUGH 09Z. PARTIAL CLEARING IS EXPECTED OVERNIGHT BEHIND THE EXITING SHORTWAVE. A REPEAT PERFORMANCE CAN BE EXPECTED THURSDAY WITH CUMULUS DEVELOPMENT IN THE LATER MORNING/EARLY AFTERNOON WITH SHOWERS AND THUNDERSTORMS INTO THE EVENING. THIS TREND WILL CONTINUE INTO FRIDAY WITH THE INSTABILITY SHIFTING A LITTLE FURTHER EAST EACH DAY. BY FRIDAY...THE EAST SLOPES...NORTH OF MADRAS...SHOULD REMAIN DRY. TEMPERATURES SHOULD DROP JUST A FEW DEGREES EACH DAY. BREEZY CONDITIONS CAN BE EXPECTED ALONG THE EAST SLOPES OF THE CASCADES AND THROUGH THE EASTERN COLUMBIA RIVER GORGE FRIDAY AS A MARINE PUSH BEGINS TO MAKE ITS WAY INLAND. MEAD EXTENDED...AN UPPER LEVEL TROUGH WILL MOVE SOUTHWARD ALONG THE BRITISH COLUMBIA COAST ON SATURDAY. 12Z AVN RUN A LITTLE SLOWER IN MOVEMENT OF UPPER TROUGH ON SATURDAY...SO HAVE DECIDED TO BACK OFF ON ANY MENTION OF AFTERNOON AND EVENING CONVECTION ON SATURDAY EAST OF THE WASHINGTON CASCADES...THE LOWER COLUMBIA BASIN AND THE FOOTHILLS OF THE BLUES...BUT WILL HOLD ONTO A SLIGHT CHANCE OF AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS FROM CENTRAL OREGON TO THE BLUE MOUNTAINS. THE UPPER TROUGH DEVELOPS INTO A CLOSED UPPER LOW ALONG THE WASHINGTON/OREGON COAST ON SUNDAY...THUS BACKING FLOW ALOFT TO THE SOUTH EAST OF THE CASCADES. THE MRF...CANADIAN AND NOGAPS MODELS ALL SHOW THE UPPER LOW MEANDERING JUST OFFSHORE OF THE OREGON COAST FROM MONDAY THROUGH WEDNESDAY AND HAVE DECIDED TO GO WITH THIS SOLUTION. AMPLE MID LEVEL MOISTURE ASSOCIATED WITH THE UPPER LOW AND COLD TEMPERATURES AT 500 MB WILL KEEP THE ATMOSPHERE UNSTABLE OVER THE FORECAST AREA FOR SCATTERED SHOWERS AND THUNDERSTORMS SUNDAY THROUGH WEDNESDAY. POLAN PDT 6262 ALW 6262 PSC 5252, YKM 2121 .KPDT...WSR-88D...VCP21/CSR21...OPERATIONAL. .KPDT...NONE.
The Pendleton radar (KPDT), 114 km away, was scanning. The volume nearest the first event began at 02:03 UTC.
1 hail. Local standard time, as filed.
Along with penny-sized hail, torrential rain fell, accumulating to 0.47 inches within 7 minutes.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2001Every state in 2001This day in weather historyWarnings in Oregon, July 2001
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: 5260839.