A woman drowned on July 1st at Cowell Ranch Beach in Half Moon Bay due to a rip current.
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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 woman drowned on July 1st at Cowell Ranch Beach in Half Moon Bay due to a rip current.
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, 12:36 PM PST, 5 hours 9 minutes earlier.
Area Forecast Discussion
National Weather Service San Francisco Bay Area
136 PM PDT Sun Jul 1 2018
.SYNOPSIS...A cooling trend will continue through mid week as
onshore flow persists and an upper trough moves through. Below
seasonal average temperatures are expected on Independence Day
before another warming trend begins late this week and into the
coming weekend.
&&
.DISCUSSION...as of 01:36 PM PDT Sunday...Conditions across the
region this afternoon are noticeably cooler than this time
yesterday with many inland areas currently in the 70s and 80s.
Temperatures are anywhere from 5 to over 20 degrees cooler thanks
to increased surface onshore flow and a deeper marine layer.
Satellite imagery shows stratus along the coast as the marine
layer remains around 2000 ft. Smoke continues to stream to the SW
over the Bay Area from the County Fire. We have received many
reports of smoke and ash across the East Bay, parts of the North
Bay, and the around SF Bay.
Northerly flow aloft will allow smoke to continue to drift over
the Bay Area through at least tonight. This will result in
continued poor air quality for the affected areas. Winds aloft
are still forecast to shift onshore tomorrow helping to clear
some smoke from the region, although smoke is still expected to at
least be drifting overhead at high levels. Cooler and more moist
conditions late this afternoon are expected as onshore flow
strengthens and the marine layer pushes further inland. This will
alleviate some fire weather concerns, and therefore, the Red Flag
Warning will be allowed to expire at 3 PM.
A cooling trend will persist through mid week as an upper trough
moves over the northwest allowing for continued onshore flow and a
deepening marine layer. Afternoon high temperatures are forecast
to be as much as 5 to 10 degrees below seasonal averages by
Independence Day. Late night and morning low clouds will likely
continue through mid week along with some patchy coastal fog.
Models continue to show a warming trend late this week and into
the weekend as high pressure over the Desert Southwest builds
towards the California Coast.
&&
.AVIATION...As of 10:50 AM PDT Sunday...Southerly surged marine
layer has deepened significantly when compared to yesterdays
depth. Expect to see the southerly flow along the coast continue
but gradually shift to become more onshore through the day.
Likewise, low cigs will first impact south facing areas today,
such as Santa Cruz, the Marin Headlands, and low cigs pushing
through the Golden Gate gap will be guided northward towards the
North Bay. Breezy to occasionally gusty winds along the coast,
with lighter winds inland. Satellite imagery also shows a fairly
thick smoke column extending from Lake Berryessa to Half Moon Bay
due to the presence of the County Fire in Yolo and Napa counties.
Expect another deep marine layer push tonight with widespread LIFR
to MVFR cigs except for the South Bay which may be sheltered with
this flow regime.
Vicinity of KSFO...FEW TO SCT low level cigs thru remainder of
morning then a BKN-OVC deck at 10-15k ft agl due to smoke from
County Fire. Increasing onshore winds this afternoon. Low cigs
return tonight eta 10z thru 18Z MON.
SFO Bridge Approach...Same as SFO.
Monterey Bay Terminals...Low cigs pulling away from Salinas valley
and Monterey Peninsula at this hour but may linger along the Santa
Cruz coast into the early afternoon. Otherwise, VFR. LIFR to IFR
cigs return to the Monterey Bay around 02-04Z MON.
&&
.MARINE...as of 09:00 AM PDT Sunday...Gusty northerly winds will
continue over the northern outer waters through mid-week. Gusty
southerly winds will develop over the southern inner waters this
afternoon. Ongoing gusty onshore winds can be expected north of
the Bay Bridge to the Delta through today and much of tonight,
gusty winds resuming Monday afternoon and evening. Elsewhere winds
will be mainly light southeasterly.
&&
.MTR WATCHES/WARNINGS/ADVISORIES...
.Tngt...SCA...Pt Pinos to Pt Piedras Blancas 0-10 nm until 5 PM
SCA...Pt Arena to Pigeon Pt 10-60 nm
SCA...SF Bay
&&
PUBLIC FORECAST: AS
AVIATION: DRP
MARINE: DRP
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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 women drowned attempting to save three children swept out to the ocean by a rip current at Cowell Ranch Beach https://sanfrancisco.cbslocal.com/2018/07/01/woman-dies-saving-children-from-rip-current/.
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 Peninsula Coast | 2018-07-01 | 47 | Female | In Water | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2018Every state in 2018This day in weather historyWarnings in California, July 2018
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: 762222.