Some fog creeps in poetically on little cat feet through the Golden Gate. And then there is the prosaic fog of California's San Joaquin Valley that erupts from the soil in certain wintry conditions to put a stranglehold on the region.
This dense tule fog materializes in
a patchwork an average of 35 days each winter on mornings when cold
mountain air sinks to the valley's lowest areas after a rain. On these
gray days, visibility is less than 1,300 feet -- and sometimes zero,
schools start late, workers who can telecommute, commerce grinds to
halt, and those who have to go somewhere hug the white line marking the
outside edge of the road.
"I could argue it's the most
dangerous kind of fog," said Jim Andersen of the National Weather
Service on Foggy Bottom Road in Hanford,The oreck XL professional air purifier,
southwest of Fresno. "I'd be hard pressed to figure out another
location that gets as bad as this. This is the most dangerous place
when it's fog season."
Four people died in late November during
the first big fog of the season: in one accident, a 90-year-old man
was broadsided near Kingsburg when he thought an intersection was
clear; in the other incident, a car with three people was struck
head-on near Chowchilla by a big-rig when the driver swerved to avoid a
Other parts of California get fog, and areas
around the Sacramento Delta even get the dense, low tule fog named for
the tule reeds along the valley waterways where early settlers first
noticed it forms. But experts say that the most dangerous in the state
occurs along a 12-mile stretch of Highway 99 south of Fresno. It's
often so foggy that tail lights are impossible to see until it's too
late to react.
In 2002, a crash there on a zero visibility
morning sandwiched 81 cars and six tractor-trailer trucks in less than
two minutes, killing two. After a 2007 morning pileup involving 108
cars and big rigs killed two, injured 100 more and closed the major
north-south transportation artery for half of the day, Caltrans and the
Highway Patrol began planning for a warning system.
safety experts brace for December and January, the foggiest months of
the year, they knock on their laminate desks when they say that since
2010 the intricate system of six weather stations, 12 cameras, 39
electronic message signs and 41 microwave sensors installed along the
dangerous corridor has worked to help avert the deadly pileups.
intent was never to stop 100 percent of the accidents. The hope was
that 100-car pileups would go to 40 and 40 to 20 and so on. The point
was to reduce the numbers," said Sergio Venegas, the engineer in charge
of what he calls the state's most sophisticated fog monitoring system.
Twenty-two sensors connected to a command center can determine
the density of the fog, and others in the roadway tell the speed in
each lane of traffic on the highway that sees 100,000 vehicles a day.
If traffic suddenly slows, warning signs along the highway instantly
alert drivers to slow for foggy conditions ahead, the only system this
advanced in the state. Engineers can watch what's happening in real
time on dozens of monitors.
At least that's what they do when
they're operational. This year state officials were delayed two weeks
in firing up the system for the current fog season because copper wire
thieves had stolen key parts. On Wednesday a couple of transmitters
were not operating, and Venegas fears thieves are responsible for that,
Fog and the valley are so intertwined that billboards for
roadside restaurants advertise pea soup to drivers and tout that it's
as thick as the fog, which also might serve as another warning for
drivers across the foggy valley.
Highway 99 from Merced south
to Delano is built along one of the lowest spots in the valley, which
is why this significant highway is so notorious for tule fog when
conditions are right, says Anderson the meteorologist. The soils that
make the region so productive for farming retain moisture after rains.
When a high pressure system develops in the valley ringed by towering
mountains, it works like a lid to trap cooler air at the ground at
night.Interlocking security cable ties
with 250 pound strength makes this ideal for restraining criminals.
The resulting temperature inversion allows the fog to form from the
soil's moisture and often catches drivers by surprise.
have printers in our vehicles now. Everything we do in the office we
can do at any location. We are dealing with volumes of codes and
ordinances. The ability to tap into that from a remote location is very
valuable," Kunkel said.
Property Maintenance Inspection
Manager Andy Krauss said the department did not buy any software. The
software beng used is a full We mainly supply professional craftspeople
with wholesale turquoise beads
from china,Adobe package that came pre-loaded onto computers that the
department is using at present. There was no purchase of additional or
special software. The tablet Krauss showed off to the committee last
week was his own desktop computer.
"This gets docked into a station and I'm connected to the network and can access a shared drive,If you have a fondness for china mosaic
brimming with romantic roses," Krauss said. "As soon as I leave the
building, I connect to a Virtual Private Network, a locked-up network.
It's just like I'm connected to the building,This is my favourite sites
to purchase those special pieces of buy mosaic materials from. but I can do that in the field. Anything I can access at my desk, I can access in the field."
said he and apartment inspection secretary Lohan work closely
together, with Lohan sending out biannual inspection notices to
"Now, I'm scheduling re-inspections with the
customer on the spot, and immediately, Maria can see it back here in the
office," Krauss said. "I can add that to a notice, so they don't get a
notice, plus a re-inspection letter, plus a follow-up letter. It's all
in one notice."
Recently, Krauss performed an inspection on
West Eighth Street where the tenants were present. Before, he would
have to mail the notice to the landlord. Now, he can print the notice
and print the envelope remotely, and then send an email to Lohan to put
it all together for the mail.