A swimmer drowned at China Beach on the morning of July 1st. The man was rescued that afternoon with rescue personnel performing CPR but could not be resuscitated.
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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 MTR wrote it up.
A swimmer drowned at China Beach on the morning of July 1st. The man was rescued that afternoon with rescue personnel performing CPR but could not be resuscitated.
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 San Francisco Bay Area, CA wrote its last area forecast discussion before the first event at Jul 1, 8:50 AM PST, 10 minutes earlier.
Area Forecast Discussion
National Weather Service San Francisco Bay Area
950 AM PDT Wed Jul 1 2020
.SYNOPSIS...Cooling will continue through Thursday, followed by
warming over the Independence Day weekend. Light to moderate
onshore flow will prevail through the period, along with areas of
night and morning coastal low clouds and fog.
&&
.DISCUSSION...As of 09:50 AM PDT Wednesday...Water vapor imagery
shows a trough of low pressure over the Pacific Northwest this
morning, with the parent low up along the British Columbia and
Washington border. As a result, drier northwesterly flow are
filtering into Northern California, with clear skies prevailing
except for along the immediate coast, where the marine layer
remains. The marine layer is deepening this morning in response to
the parent low starting to retrograde to the southwest, deepening
the trough along the West Coast. At this time, the Fort Ord
profiler shows the marine layer is a little over 2000 feet deep,
and a few areas like Santa Cruz have been reporting some drizzle.
Once the marine layer clears today, temperatures will be several
degrees cooler today when compared to yesterday, returning to more
normal ranges. These cooler conditions will also continue into
tomorrow as the trough continues to deepen along the West Coast.
Only minor fluctuations in the upper level pattern will occur
through the Fourth of July weekend and into next week, as this
trough of low pressure and the ridge over the Desert Southwest
struggle to be the dominant weather factor. Either way,
southwesterly flow aloft will prevail across our region, with
onshore flow prevailing. Although the marine layer depth will
fluctuate a bit as well, but expect it to return each night and
linger through the morning hours. Temperatures will ebb and flow
too, with some minor warming possible this weekend and some minor
cooling occuring next week. Either way conditions will be
seasonal, with no major concerns anticipated at this time other
than southerly swell possible for this weekend. Please see the
marine section for more details. Palmer
&&
.DISCUSSION...As of 02:50 AM PDT Wednesday...Satellite fog
product overnight shows a gradually expanding marine layer along
the coast and inland valleys, especially Santa Clara and Salinas
Valleys. The pressure gradient from SFO-ACV is still greater than
5 mb, so clouds sneaking through the Golden Gate are less. The
depth of the marine layer has deepened over the last 24 hours so
dense fog is less likely this morning, but patchy fog is still
possible. Similar to the last few days the marine layer will
lingering through mid-morning giving way to sunshine for much of
the Bay Area.
Despite the afternoon sunshine temperatures will actually cool
slightly today thanks to a shift in the longwave pattern. An upper
level trough covering much of the West Coast, which is anchored
by an upper low over Washington state, will retrograde over
California today and Thursday. Lowering 500 mb heights will help
to re-establish a better defined marine layer with night/morning
low clouds. 850 mb temperatures will lower a few degrees and low
level onshore flow will persist dropping temperatures below
seasonal averages on Wednesday and Thursday.
By Friday the upper level trough will begin to lift northward as
high pressure builds in from the Desert Southwest. A slight
uptick in temperatures will occur on Friday with downward trend on
the marine layer. For the upcoming holiday weekend additional
warming is expected as high pressure continues to build over the
region. Weekend temperatures will be warmest across the interior
with highs 5-10 degrees above seasonal averages or in the 80/90s.
Lingering onshore flow will keep coastal/bay areas closer to
seasonal averages with highs in the 60/70s.
The warming will be short lived as yet another trough begins to
sweep through the West Coast early next week.
No precip in sight the next 7-10 days.
&&
.AVIATION...As of 4:33 AM PDT Wednesday...for 12z TAFs. Winds are
light and onshore. Patchy low clouds provides various VFR/MVFR
conditions, with isolated terminals dropping to IFR. Winds will
increase after 17z and drive the removal of the low clouds around
the region. Winds will remain onshore and become breezy in the
afternoon. The marine layer returns Wednesday night keeping cloud
cover around the Bay Area.
Vicinity of KSFO...MVFR with a FEW clouds below 1000 feet passing
overhead. However, patchy lower clouds remain in the area as KOAK
and KAPC are at MVFR with clouds between 1200-1500 ft. Clouds
should lift by 17z as winds increase as they traditionally do in
the afternoon, but remain onshore. Marine layer will deepen and
bring cigs have to MVFR Wednesday night.
SFO Bridge Approach...Similar to KSFO.
Monterey Bay Terminals...Low clouds once again keeps the terminals
at IFR. Low confidence in it dropping to LIFR; however, KWVI is
currently at LIFR with lower cigs and reduced vis. Clouds will
lift and linger around the peninsula all day. Winds will become
breezy in the afternoon before low clouds return Wednesday night.
IFR conditions forecast by the evening.
&&
.MARINE...As of 08:47 AM PDT Wednesday...Northwesterly winds are
forecast to prevail over the waters for today and overnight. The
strongest winds will generally occur in the outer waters north of
Pigeon Point where infrequent gale- force gusts are possible
through the rest of the morning and the early afternoon. Winds are
forecast to gradually subside on Thursday. New long-period
southerly swell train will arrive late Thursday or Friday. This
will cause occasional breaking waves over nearshore shoals and
strong currents along the coast, especially near points and
headlands.
&&
.MTR WATCHES/WARNINGS/ADVISORIES...
.Tday...SCA...Pt Arena to Pt Reyes 0-10 nm
SCA...Pt Arena to Pigeon Pt 10-60 nm
SCA...Pigeon Pt to Pt Piedras Blancas 10-60 nm until 3 PM
&&
PUBLIC FORECAST: Palmer
AVIATION: DK
MARINE: Rowe
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www.youtube.com/nwsbayareaThe national radar mosaic for the moment the first event began.
1 rip current. Local standard time, as filed.
A swimmer drowned at China Beach on the morning of July 1st. The man was rescued that afternoon with rescue personnel performing CPR but could not be resuscitated https://sfist.com/2020/07/02/67-year-old-ocean-swimmer-dies-near-china-beach/. Timing is approximate.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Rip Current, San Francisco | 2020-07-01 | 67 | Male | In Water | Direct |
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, July 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 2026-09-24. Each event’s entry at NCEI: 906088.