2018-07-11 01:05:04 UTC
in the Los Angeles area are from weather stations compromised by
heat sources and heat sinks, according to a veteran meteorologist.
In my opinion, the data from these stations is worthless,
California-based meteorologist Anthony Watts wrote on his blog Watts
Up With That.
Thats not to say Los Angeles wasnt scorching hot. Temperatures in
much of greater Los Angeles were in the triple digits, according to
the National Weather Service.
On the contrary, what Watts claims is that artificial heat sources
and sinks produce localized heat around weather stations, adding the
few degrees necessary to qualify as records. In general, cities are
warmer than surrounding countryside owing to the urban heat island
For example, downtown Los Angeles reported a daily record high
temperature of 108 degrees Fahrenheit on Friday. Watts, however,
noted the weather station was on top of a parking garage surrounded
by vehicles. The weather station was relocated to the University of
Southern California (USC) campus in 1999 where meteorologists said
it would be less prone to extreme swings, but Watts said that
stations had problems in the past.
The ASOS type station used at USC is notorious for producing false
record highs where there arent any. For example, Honolulu and
Tucson, Watts wrote. Look at all the service vehicles parked
around it. One wonders recent record high that was claimed there is
just another result of a vehicle being parked to close to it like
the Ice Cream Truck debacle that denied a new all-time record high
for Scotland a few days ago.
U.K. meteorologists recently rejected a record-high temperature
reading at Motherwell, Scotland, on June 28 because an ice cream
truck had idled nearby with its engine on, possibly contaminating
Scotlands record-high reading came amid what some are calling a
global heat wave, which has produced record readings across the
world. Some media outlets, including The Washington Post, tried to
link the heat wave to man-made global warming.
No single record, in isolation, can be attributed to global
warming, the Post reported, trying to link summer weather to global
warming. But collectively, these heat records are consistent with
the kind of extremes we expect to see increase in a warming world.
Record-high temperatures were also recorded at the Van Nuys Airport,
the Burbank Airport and the University of California-Los Angeles
(UCLA). Watts took issue with all of these record readings.
(RELATED: Africas Hottest Temperature Ever Recorded Was Probably
Influenced By Man-Made Objects)
Its another ASOS station snuggled between an industrial park,
runway, road, and taxiway, Watts wrote of the Van Nuys Airport
weather station, which recorded 117 degrees Fahrenheit on Friday.
As for the Burbank Airport, Watts wrote that the weather station is
virtually surrounded by asphalt runways, taxiways, and aircraft
parking ramps, which means the likelihood for the station to get
in the middle of a [400-degree] jetwash is almost a certainty, being
so close to taxiways with turns.
Airports, like cities, tend to run hotter than surrounding areas
because of runways, jet wash from airplanes, vehicles exhaust and
other non-natural factors that can artificially raise temperatures.
UCLAs weather station recorded a record 111 degrees Fahrenheit on
Friday. However, Watts pointed out the universitys thermometer is
one the roof of a building, likely being hit with artificial heat.
UCLAs weather station is on the roof of the Math
Sciences/Atmospheric Sciences building, Watts wrote. Why? theres
no place else to put it. Theres hardly a free and open space left.
Obama's legacy is President Trump.