A strong upper trough pushed through the region on June 12 and 13 producing scattered thunderstorms over the Sierra Nevada and adjacent foothills from Fresno County northward during the evening of June 12. A few of the thunderstorms produced small hail and moderate rainfall.
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.
A strong upper trough pushed through the region on June 12 and 13 producing scattered thunderstorms over the Sierra Nevada and adjacent foothills from Fresno County northward during the evening of June 12. A few of the thunderstorms produced small hail and moderate rainfall. Outflow from the thunderstorms produced blowing dust across portions of the San Joaquin Valley, briefly reducing visibility to near zero. A strong northwest flow on the back side of the trough produced gusty winds over the Kern County Deserts and in the Tehachapi and Lake Isabella areas between the morning of June 13 and the morning of June 14. Several stations in these areas measured wind gusts exceeding 45 mph while a few stations measured gusts exceeding 60 mph. The winds diminished by midday on June 14.
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 Jun 12, 2:02 PM PST, 3 hours 58 minutes earlier.
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</html>5 high wind, 2 dust storm. Local standard time, as filed.
California Highway Patrol reported near zero visibility in blowing dust along SR 41 between Manning Ave and the Kings County line.
Cal Trans webcams indicated near zero visibility in blowing dust along SR 99 in Selma.
The Bird Springs Pass RAWS measured a peak wind gust of 74 mph.
The Squirrel Valley Lynch Canyon RAWS measured a peak wind gust of 58 mph.
The Jawbone Canyon RAWS measured a peak wind gust of 61 mph.
The Cache Creek CHP station measured a peak wind gust of 60 mph.
The Southern California Edison Station in Little Oak Canyon measured a peak wind gust of 62 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2020Every state in 2020This day in weather historyWarnings in California, June 2020
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 2026-09-30. Each event’s entry at NCEI: 886580, 886582, 886567, 886569, 886568, 886573, 886571.