Clear overnight skies and a cool airmass from a Pacific upper level trough brought record low temperatures to the Sacramento Valley.
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 STO wrote it up.
Clear overnight skies and a cool airmass from a Pacific upper level trough brought record low temperatures to the Sacramento Valley.
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 Sacramento, CA wrote its last area forecast discussion before the first event at Sep 28, 8:30 PM PST, 3 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SACRAMENTO CA 930 PM PDT FRI SEP 28 2007 .UPDATE DISCUSSION... A LINE OF SHOWERS WITH EMBEDDED THUNDERSTORMS ALONG THE COLD FRONT DEVELOPED IN NORTHERN BUTTE COUNTY AND OVER INTO PLUMAS COUNTY THIS EVENING. THE LINE HAS MIGRATED SOUTH-SOUTHEAST AT 15 TO 20 MPH INTO YUBA AND NEVADA COUNTIES. RADAR IS PICKING UP A GUST FRONT AHEAD OF THE SHOWERS ENTERING NORTHERN PLACER COUNTY AND SOUTHERN SUTTER COUNTY. MARYSVILLE HAD A GUST OF 40 MPH FROM THE GUST FRONT FOLLOWED BY RAIN 20 MINUTES LATER. WE DID NOT HAVE ANY REPORTS OF SEVERE CRITERIA THIS EVENING...SMALL HAIL IN QUINCY AND HEAVY RAIN NEAR DOWNIEVILLE WHEN THE LINE PASSED. WE UPDATED THE ZONES TO REFLECT THE CURRENT AND PROJECTED WEATHER. THE COLD FRONT WILL CONTINUE TO PUSH THROUGH THE CWA TONIGHT AS PROGGED. SNOW LEVELS ARE 5500 TO 7000 FEET IN THE NORTHERN SIERRA. HOWEVER...THE MAJORITY OF THE PRECIP WILL BE ALL BUT THROUGH THE AREA BEFORE THE THE SNOW LEVELS DROP ANY FURTHER BEHIND THE COLD FRONT. && .AVIATION... THE COLD FRONT CONTINUING TO MOVE SOUTHWARD ACROSS THE ERN VALLEY AND SIERNEV FOOTHILLS THIS EVENING WITH A LINE OF SHOWERS AND ISOLD TS APPROACHING I-80. AREAS OF MVFR/IFR CONDITIONS WILL CONTINUE ACROSS THE ERN VALLEY AND SURROUNDING MOUNTAINS AND FOOTHILLS...WITH LOCALLY GUSTY SOUTH TO SOUTHWEST WINDS SHIFTING TO NORTH BEHIND FRONT. CLEARING SKIES AND VFR CONDITIONS BECOMING PREDOMINANT AFTER 06Z. && .STO WATCHES/WARNINGS/ADVISORIES...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SACRAMENTO CA 700 AM PDT FRI SEP 28 2007 CAZ013>019-063-064-066>069-291400- SHASTA LAKE AREA/NORTHERN SHASTA COUNTY- BURNEY BASIN/EASTERN SHASTA COUNTY-NORTHERN SACRAMENTO VALLEY- CENTRAL SACRAMENTO VALLEY-SOUTHERN SACRAMENTO VALLEY- CARQUINEZ STRAIT AND DELTA-NORTHERN SAN JOAQUIN VALLEY- MOUNTAINS SOUTHWESTERN SHASTA TO NORTHERN LAKE COUNTIES- CLEAR LAKE/SOUTHERN LAKE COUNTY-MOTHERLODE- EAST FOOTHILLS/NORTH SACRAMENTO VALLEY- WESTERN PLUMAS COUNTY/LASSEN PARK-WEST SLOPE NORTHERN SIERRA NEVADA- 700 AM PDT FRI SEP 28 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR INTERIOR NORTHERN CALIFORNIA. .DAY ONE...TODAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. A SHARP DROP IN TEMPERATURES IS EXPECTED TODAY AS A COLD FRONT MOVES ACROSS THE AREA. LIGHT SHOWERS ARE POSSIBLE MAINLY OVER THE MOUNTAINS NORTH OF INTERSTATE 80 AND OVER THE NORTHERN SACRAMENTO VALLEY. GUSTY WINDS WILL ALSO OCCUR THROUGH THE DELTA AND OVER THE HIGHER TERRAIN. WINDS WILL TURN NORTHERLY AND BECOME LOCALLY GUSTY OVER THE MOUNTAINS BEHIND THE COLD FRONT LATER TONIGHT. .DAYS TWO THROUGH SEVEN... SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. ANOTHER COLD FRONT WILL BRING COOLER TEMPERATURES...LOCALLY GUSTY WINDS AND SCATTERED SHOWERS TO MOST OF THE AREA SUNDAY NIGHT. SHOWERS MAY LINGER OVER THE SIERRA NEVADA INTO MONDAY MORNING. THE LATEST WEATHER INFORMATION IS AVAILABLE ON THE INTERNET AT (LOWER CASE): HTTP://WWW.WRH.NOAA.GOV/STO
3 cold/wind chill. Local standard time, as filed.
A new daily minimum temperature record of 47 degrees for downtown Sacramento was set. This broke the old record of 48 degrees set in 1955 and in previous years.
A new daily record low temperature of 41 degrees was set at Red Bluff Airport. This broke the old record of 42 degrees set in 1971.
A new daily minimum temperature record of 42 degrees was set at the Sacramento Executive Airport. This broke the previous record of 43 degrees set in 1971.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2007Every state in 2007This day in weather historyWarnings in California, September 2007
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: 53128, 53127, 111151.