1 thunderstorm wind, 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 Boise, ID wrote its last area forecast discussion before the first event at Jul 19, 1:25 PM PST, 1 hour 50 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BOISE IDAHO 325 PM MDT MON JUL 19 2004 .SHORT TERM...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 900 PM FOR ALL ZONES EXCEPT HARNEY COUNTY. MORNING SOUNDING AT BOISE SHOWED 1.09 INCHES OF PRECIPITABLE WATER WHICH IS DOWN A BIT FROM 1.46 INCHES LAST NIGHT. THE MORNING SOUNDING TAKEN UPSTREAM AT RENO ALSO SHOWS A DECREASE IN PW DOWN TO 0.86 INCHES. ALTHOUGH THESE VALUES REPRESENT A SLIGHT DECREASE IN OVERALL MOISTURE CONTENT FROM YESTERDAY...THERE IS STILL ADEQUATE MOISTURE AVAILABLE TO FUEL SCATTERED AFTERNOON THUNDERSTORMS...SOME CAPABLE OF PRODUCING LOCALIZED HEAVY RAIN. THE TROUGH OFF THE WASHINGTON AND OREGON COAST HAS MOVED A LITTLE FURTHER EAST TODAY AND INCREASED WIND SHEAR OVER THE WESTERN HALF OF THE FORECAST AREA WHICH IS ADDING EXTRA SUPPORT TO THE STORMS OVER BAKER COUNTY LATE THIS AFTERNOON. THIS SAME TROUGH WILL TURN THE MID AND UPPER LEVEL FLOW TO A MORE WESTERLY DIRECTION OVER THE NEXT COUPLE OF DAYS. THIS WILL PUSH THE VERY MOIST AIR FURTHER EAST AND SHUT DOWN THE CONNECTION TO THE MONSOON. THERE WILL STILL BE ENOUGH MOISTURE AND INSTABILITY FOR A CHANCE OF THUNDERSTORMS IN THE IDAHO MOUNTAIN ZONES LATE TOMORROW AFTERNOON BUT THE FORECAST AREA WILL BE DRY ON WEDNESDAY. TEMPERATURES WILL BE NEAR NORMAL FOR THE NEXT COUPLE OF DAYS BEFORE A WARMING TREND BEGINS ON THURSDAY AS AN UPPER LEVEL RIDGE BEGINS TO REBUILD OVER WESTERN U.S. .LONG TERM...THURSDAY NIGHT THROUGH MONDAY...MODELS CONTINUE TO BE IN GOOD AGREEMENT WITH ONLY MINOR DIFFERENCES IN POSITION AND STRENGTH OF THE SYSTEMS. RIDGE OF HIGH PRESSURE WILL BE THE MAIN PATTERN OVER THE WESTERN SECTION OF THE COUNTRY FOR MAINLY WARM AND DRY CONDITIONS OVER THE FORECAST AREA. TEMPERATURES ARE EXPECTED TO BE IN THE MID TO UPPER 90S ACROSS MUCH OF THE AREA THROUGH THE EXTENDED PERIOD. GFS CONTINUES TO TRY AND BRING A WEAK SHORT WAVE UNDER THE RIDGE SATURDAY/SUNDAY WITH SOME MOISTURE ALONG WESTERN SECTION OF THE FORECAST AREA. DO NOT HAVE A LOT OF CONFIDENCE IN THIS PATTERN AS IT IS VERY HARD TO BREAK THROUGH THE RIDGE THIS TIME OF YEAR. WILL KEEP A VERY SMALL MENTION OF POPS ALONG THE WESTERN SECTION OF THE FORECAST AREA AND KEEP THE REST OF THE AREA AT OR NEAR ZERO. && .BOI WATCHES/WARNINGS/ADVISORIES... ID...FLASH FLOOD WATCH ALL ZONES TIL 04 Z (900 PM MDT). OR...FLASH FLOOD WATCH ZONES 62-64 TIL 04Z. (900 PM MDT/800 PM PDT). && DISCUSSION...JB SHORT TERM...TE LONG TERM....GS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BOISE ID 600 AM MDT MON JUL 19 2004 IDZ011>016-028>030-ORZ061>064-201200- BAKER COUNTY-BOISE MOUNTAINS-CAMAS PRAIRIE-HARNEY COUNTY- LOWER TREASURE VALLEY-MALHEUR COUNTY-OREGON LOWER TREASURE VALLEY- OWYHEE MOUNTAINS-SOUTHERN TWIN FALLS COUNTY-SOUTHWEST HIGHLANDS- UPPER TREASURE VALLEY-WEST CENTRAL MOUNTAINS-WESTERN MAGIC VALLEY- 600 AM MDT (500 AM PDT) MON JUL 19 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST IDAHO AND SOUTHEAST OREGON. .DAY ONE...TODAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
The Pendleton radar (KPDT), 99 km away, was scanning. The volume nearest the first event began at 23:14 UTC.
1 thunderstorm wind. Local standard time, as filed.
The wind gust toppled a pair of large Ponderosa pine trees onto two vehicles, severely damaging both.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2004Every state in 2004This day in weather historyWarnings in Oregon, July 2004
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: 5414092.