Based on the above spotter report, a Severe Thunderstorm Warning was issued for extreme north central Klamath County at 21/1621 PDT and expired at 21/1645 PDT. and three additional warnings were issued based on the radar reports alone.
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 episode as NWS MFR wrote it up.
Based on the above spotter report, a Severe Thunderstorm Warning was issued for extreme north central Klamath County at 21/1621 PDT and expired at 21/1645 PDT. Several other thunderstorms of a similar intensity developed in the same area later in the afternoon...and three additional warnings were issued based on the radar reports alone.
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 Medford, OR wrote its last area forecast discussion before the first event at Aug 21, 1:49 PM PST, 2 hours 16 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MEDFORD OR 249 PM PDT SUN AUG 21 2005 .DISCUSSION... TODAY IS THE BIG SHOW ACROSS THE REGION. CUMULUS IS BUILDING WELL FROM THE CASCADES ACROSS THE EAST SIDE WITH NUMEROUS STRIKES IN SOUTHEAST LAKE COUNTY AT THIS TIME. VERY LITTLE CU IS DEVELOPING ON THE WEST SIDE AND HAVE CUT BACK POPS TO JUST THE CASCADES AND EAST. HOWEVER...WILL HAVE TO KEEP AN EYE ON WHEN THE UP VALLEY FLOW KICKS IN AND SEE IF ANYTHING DEVELOPS IN THE SISKIYOUS. WEAK VORT AXIS SWEEPS ACROSS THE EAST SIDE AROUND 6Z AND THERE SHOULD BE ENOUGH ELEVATED INSTABILITY TO KEEP SOME ISOLATED THUNDERSTORMS GOING INTO THE WEE HOURS. TOMORROW NORTHWESTERLY FLOW DEVELOPS ACROSS MOST OF THE REGION AND CUTS OFF MOISTURE ADVECTION. HOWEVER...WITH TODAYS THUNDERSTORMS THERE SHOULD BE ENOUGH LOW LEVEL MOISTURE LEFT BEHIND AND ONLY SLIGHT COOLING AT 500MB TO PROVIDE INSTABILITY OVER LAKE COUNTY TOMORROW AFTERNOON AND EVENING. ON TUESDAY UPPER LEVEL RIDGE BEGINS TO NUDGE INTO THE REGION WITH DRY AND COOLER NORTHERLY FLOW BRINGING A BRIEF WELCOME COOL DOWN. OFFSHORE FLOW RETURNS A WARMING AND DRYING TREND TO OUR AREA THE LATTER PART OF THE WEEK. && .AVIATION...LOW CLOUDS AND PATCHY FOG REDEVELOP TONIGHT WITH IFR CONDITIONS PUSHING BACK INTO THE COASTAL VALLEYS BY MORNING. THESE CLOUDS WILL BURN OFF AGAIN TO THE COAST TOMORROW AFTERNOON. && .MFR WATCHES/WARNINGS/ADVISORIES... OR...RED FLAG WARNING FIRE ZONE 625 THIS AFTERNOON AND EVENING FOR SCATTERED DRY THUNDERSTORMS. SMALL CRAFT ADVISORY CAPE BLANCO TO CA STATE LINE. CA...SMALL CRAFT ADVISORY OR STATE LINE TO PT ST GEORGE. && ALSO VISIT THE NWS ON THE WEB AT WEATHER.GOV/MEDFORD SVEN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MEDFORD OR 844 AM PDT SUN AUG 21 2005 ORZ030-031-221330- LAKE COUNTY- NORTHERN KLAMATH COUNTY- 844 AM PDT SUN AUG 21 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN OREGON AND NORTHERN CALIFORNIA .DAY ONE...TODAY RED FLAG WARNING FOR NORTHEASTERN LAKE COUNTY. SEE BOIRFWBOI FOR DETAILS. FIRE WEATHER WATCH FOR NORTHERN KLAMATH COUNTY AND MOST OF LAKE COUNTY SEE PDXRFWMFR AND PDXRFWPDT FOR DETAILS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HESS
The Medford radar (KMAX), 172 km away, was scanning. The volume nearest the first event began at 00:05 UTC.
1 hail. Local standard time, as filed.
Spotter KL73 reported .5 to .75 inch hail from a thunderstorm...but not too heavy where he was.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oregon in 2005Every state in 2005This day in weather historyWarnings in Oregon, August 2005
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: 5470231.