A Frost Warning was issued this night for California zones CAZ084/085, but it was canceled early due to cloud cover. No frost was reported, but reported low temperatures ranged from 31 to 42, so some frost likely did occur.
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 MFR wrote it up.
A Frost Warning was issued this night for California zones CAZ084/085, but it was canceled early due to cloud cover. No frost was reported, but reported low temperatures ranged from 31 to 42, so some frost likely did occur.
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 Jun 22, 1:21 PM PST, 1 hour 23 minutes earlier.
SOUTHWEST OREGON AND NORTHERN CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD, OR
221 PM PDT SUN JUN 22 2003
CLOUDY SKIES CONTINUE NORTH OF THE UMPQUA DIVIDE BUT ELSEWHERE SKIES
ARE MOSTLY CLEAR. THEREFORE EXPECT ANOTHER COOL NIGHT AND WILL
CONTINUE WITH THE FROST WARNING FOR EAST OF THE CASCADES. EVERYTHING
IS STILL ON TRACK FOR THE NEXT LOW PRESSURE TO DROP INTO OREGON
MONDAY. THIS LOW IS SUPPORTED BY AN UNSEASONABLY STRONG 125KT JET
THAT WILL DIVE DOWN ALONG THE COASTAL WATERS. AIR MASS WILL BE
UNSTABLE ON MONDAY WITH SHOWER ACTIVITIES WITH POSSIBLE
THUNDERSTORMS IN CURRY COUNTY. THE UPPER LEVEL LOW WILL ALSO BE
MOVING ACROSS THE FORECAST AREA DURING THE DAY WITH POTENTIAL FOR
AFTERNOON THUNDERSTORMS FOR EAST SIDE. THIS SYSTEM APPEARS WET AND
THERE SHOULD BE RAINFALL WITH THESE STORMS. THIS STORM WILL ALSO
BRING GUSTY AFTERNOON NORTH TO NORTHWEST WINDS...ESPECIALLY EAST OF
THE CASCADES AND ALONG THE SHASTA VALLEY. TEMPERATURES WILL CONTINUE
TO BE MILD THROUGH TUESDAY BEFORE WARMING FROM WED ON WITH OFFSHORE
FLOW AT THE COAST.
EXTENDED...WARMING AND DRYNG TREND WITH TEMPERATURES RETURNING TO
SEASONAL NORMS. MEDIUM RANGE GUIDANCE INDICATES THAT WE MAY SEE
ANOTHER TROUGH DROPPING INTO THE PAC NW AGAIN NEXT WEEKEND.
FB
MFR...SMALL CRAFT ADVISORY CAPE BLANCO SOUTH.
FROST WARNING TONIGHT ORZ029>031 CAZ084-085ORZ021>031-CAZ080>085-231330- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MEDFORD OR 630 AM PDT SUN JUN 22 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN OREGON AND NORTHERN CALIFORNIA .DAY ONE...TODAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ORR
The national radar mosaic for the moment the first event began.
2 cold/wind chill. Local standard time, as filed.
See below.
See below.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2003Every state in 2003This day in weather historyWarnings in California, June 2003
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: 5364965, 5364966.