Tropical influx jet pushed into central California ahead of a cold front created heavy rains which were enhanced by orographical lifting with the Sierra Mountains.
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 HNX wrote it up.
Tropical influx jet pushed into central California ahead of a cold front created heavy rains which were enhanced by orographical lifting with the Sierra Mountains.
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 Hanford, CA wrote its last area forecast discussion before the first event at Feb 3, 6:39 AM PST, 4 hours 21 minutes earlier.
Area Forecast Discussion National Weather Service San Joaquin Valley - Hanford CA 639 AM PST Fri Feb 3 2017 ...UPDATED AVIATION SECTION... .SYNOPSIS... Another storm will bring rain and higher elevation snow to the area today. A drying trend is expected this weekend. Wet weather will return by early next week. && .DISCUSSION... Additional light to moderate scattered showers continue to track northeast across central California this morning ahead of an approaching Pacific cold frontal system. A band of heavier showers accompanying the front is nudging slowly southward toward the northern portion of our area. Short term high-res models move this boundary through the region later this morning and afternoon. The airmass is progged to destabilize with li's around -2 and capes of 400-600 through early afternoon, mainly Fresno County northward. This could lead to a few thunderstorms through this afternoon. Rainfall should taper off overnight with just a few lingering showers. Additional rain accumulations will range from around 1/4 inch in the north Valley to a few hundredths down south and in the desert. 1/2 to 1 inch is possible in the foothills and lower Sierra zones. Snow levels will continue to run around 6 to 7 thousand feet with an additional 8-16 inches expected. The Winter Storm Warning continues From Kings Canyon to Yosemite and a Winter Weather Advisory in the Tulare County mountains through 10 pm tonight. After tonight, the weekend will be mainly dry, as the low pressure system moves away to the east. Just a weak ripple in the westerly flow will brush by to our north Saturday, possibly kicking off a stray shower or two over our extreme northern areas. Models are similar in moving another trough through our area Sunday night, bringing another round of rain and mountain snow through Monday with some lingering showers into Tuesday. Expect similar rain and snowfall totals with this system, with snow levels running near the 6000 ft level. Gusty winds will pick up across portions of the SJ Valley and desert zones as well as over the mountains with the passing system Monday. The middle of the week will bring a break from the rain, with some fog likely in the San Joaquin Valley under a building ridge. By Friday, a weak trough could bring more showers to the region. Temperatures are progged to mostly remain above climo through the period, lowering a little closer to normal behind the passing troughs. && .AVIATION... Areas of IFR and mountain obscurations in low clouds and scattered precipitation in the Sierra Nevada. Areas of MVFR in showers over the San Joaquin Valley. Otherwise, VFR conditions are expected over the next 24 hours across the central California interior. && .AIR QUALITY ISSUES... None. && .CERTAINTY... The level of certainty for days 1 and 2 is medium. The level of certainty for days 3 through 7 is medium. Certainty levels include low...medium...and high. Please visit www.weather.gov/hnx/certainty.php for additional information an/or to provide feedback. && .HNX Watches/Warnings/Advisories... Winter Weather Advisory until 10 PM PST this evening CAZ097. Winter Storm Warning until 10 PM PST this evening ABOVE 6000 FEET FOR THE CAZ096. && public...JEB avn/fw...DCH synopsis...JEB weather.gov/hanford
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
738 AM PST FRI FEB 03 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1130 PM NON-TSTM WND GST LOS BANOS 37.06N 120.83W
02/01/2017 U0.00 MPH MERCED CA PUBLIC
STRONG WIND GUSTS BLEW DOWN AN AIR CONDITIONING UNIT FROM
A HOUSE ROOFTOP. WIND SPEED UNKNOWN.
&&
DSSpecial Weather Statement National Weather Service San Joaquin Valley CA 930 AM PST FRI FEB 3 2017 CAZ090-093-031815- Mariposa, Madera, and Fresno County Foothills CA-East- Central San Joaquin Valley CA- 930 AM PST FRI FEB 3 2017 ...SPECIAL WEATHER STATEMENT... At 928 AM PST, Doppler radar was tracking a moderate to heavy rain cell 11 miles northeast of Merced, moving northeast at 35 mph. Winds in excess of 30 mph will be possible with this storm. Small hail is also possible with this cell. Locations impacted include... Planada and Catheys Valley. LAT...LON 3727 12039 3740 12049 3761 12017 3745 11995 TIME...MOT...LOC 1728Z 239DEG 29KT 3739 12031 Andersen
Special Weather Statement National Weather Service San Joaquin Valley CA 1002 AM PST FRI FEB 3 2017 CAZ093-096-031845- Mariposa, Madera, and Fresno County Foothills CA- Sierra Nevada from Yosemite to Kings Canyon CA- 1002 AM PST FRI FEB 3 2017 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MARIPOSA AND SOUTHERN TUOLUMNE COUNTIES UNTIL 1045 AM PST... At 1001 AM PST, Doppler radar was tracking a strong thunderstorm 13 miles west of Bootjack, or 25 miles northeast of Merced, moving northeast at 30 mph. Dime size hail and winds in excess of 30 mph will be possible with this storm. Locations impacted include... Bootjack, Mariposa and Jerseydale. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service office in Hanford CA. && LAT...LON 3754 11973 3745 11995 3761 12017 3778 11996 TIME...MOT...LOC 1801Z 229DEG 23KT 3751 12011 Andersen
Special Weather Statement National Weather Service San Joaquin Valley CA 1049 AM PST FRI FEB 3 2017 CAZ090-093-096-031930- Mariposa, Madera, and Fresno County Foothills CA-East- Central San Joaquin Valley CA- Sierra Nevada from Yosemite to Kings Canyon CA- 1049 AM PST FRI FEB 3 2017 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MARIPOSA...NORTHERN MADERA AND EAST CENTRAL MERCED COUNTIES UNTIL 1130 AM PST... At 1048 AM PST, Doppler radar was tracking a band of heavy to moderate rainfall 16 miles southwest of Bootjack, or 19 miles east of Merced, moving northeast at 30 mph. Dime size hail and winds in excess of 30 mph will be possible with this storm. Lightning will also be possible with this storm. When thunder roars go indoors. Locations impacted include... Bootjack, Mariposa, Jerseydale, Catheys Valley, Le Grand and Metcalf Gap. PRECAUTIONARY/PREPAREDNESS ACTIONS... To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service office in Hanford CA. && LAT...LON 3717 12026 3734 12030 3773 11984 3745 11965 TIME...MOT...LOC 1848Z 236DEG 27KT 3735 12014 Andersen
The San Joaquin Valley radar (KHNX), 129 km away, was scanning. The volume nearest the first event began at 18:58 UTC.
14 flood, 3 heavy rain, 1 flash flood. Local standard time, as filed.
Trained spotter report of 24 hour rainfall total of 0.75 inches near Ponderosa Basin in Mariposa County.
Public report of heavy rain causing road ponding/flooding near Herndon Avenue and State Highway 99 in the city of Fresno in Fresno County.
Trained Spotter report of a one hour rainfall total of 0.75 inches along with some small hail near Ponderosa Basin in Mariposa County.
California Highway Patrol reported road flooding on Avenue 9 and Childrens Boulevard near Fresno in Madera County.
California Highway Patrol reported road flooding near Lodge Road and Wiemiller Road with a vehicle stuck in flood waters west of Tollhouse in Fresno County. Road was temporarily closed to let water subside.
California Highway Patrol reported road flooding near Tollhouse Road and Shaver Springs Road about 5 miles southwest of Shaver Lake in Fresno County.
California Highway Patrol reported road flooding and a one lane road bridge washed out near Indian Peak Road and Hersch Road about 8 miles southeast of Mariposa in Mariposa County.
California Highway Patrol reported road ponding/flooding near North Friant Road and Bugg Avenue near Millerton Lake in Fresno County.
California Highway Patrol reported road flooding in several locations near Triangle Road and State Route 49 about 9 miles southeast of Midpines in Mariposa County.
California Highway Patrol reported vehicle stuck in flood waters near Paso Pass Road and Stumpfield Mountain Road about 9 miles southeast of Midpines in mariposa County.
California Highway Patrol reported road flooding on Italian Creek Road 6 miles southeast of Midpines in Mariposa County.
California Highway Patrol reported roadway flooding on Reno Road and Auberry Road intersection just north of Gordon in Fresno County.
California Highway Patrol reported roadway flooding on State Route 41 near Road 145 just southwest of Indian Springs in Madera County.
Trained spotter report of 24 hour rainfall total of 1.04 inches in North Clovis in Fresno County.
California Highway Patrol reports roadway flooding on the intersection of Harbour Drive and Millerton Road with about 6 to 8 inches of standing water just south of Millerton Lake in Fresno County.
California Highway Patrol reported roadway flooding near Copper Avenue and Auberry Road about 5 miles north northwest of Clovis in Fresno County.
California Highway Patrol reported road flooding between Belcher Road and Friant Road about 2 miles south of Millerton Lake in Fresno County.
Public reported roadway flooding near Shepard Avenue and Maple Avenue in the city of Fresno in Fresno County.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2017Every state in 2017This day in weather historyWarnings in California, February 2017
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: 679312, 679297, 679313, 679298, 682039, 679300, 679301, 679302, 679303, 679304, 679305, 679306, 679307, 679314, 679308, 679309, 679310, 679311.