[HCARC] Just HOW BLUE Was Our Blue Norther??

[Harvey N. Vordenbaum]

I remember two very sudden cold snaps just east of San Antonio.
1949 and 1951.  I'm thinking the one in 1949 was the worst one which may have set the low record for San Antonio of 5 deg.  This would have been about the end of January.
I'm thinking it was the 1949 one when I was walking home from school about 4 P.M.  This sudden wind shift from the north came in with a rolling fog like cloud right on the ground kicking up dust and there was an immediate temperature change of twenty degrees or so. That night there was snow.  The next night, when it had cleared off, we went out to look at the thermometer on the porch and it was showing 15 deg.  I think that's when San Antonio's record was set.
Maybe there is a way to look that up online.
K5HV


-----Original Message-----
From: HCARC [mailto:hcarc-bounces at mailman.qth.net] On Behalf Of Gary Johnson
Sent: Monday, December 19, 2016 7:18 PM
To: hcarc at mailman.qth.net
Subject: [HCARC] Just HOW BLUE Was Our Blue Norther??

Found this:

A Texas-sized temperature swing
Grand prize for the most dramatic frontal passage goes to West Texas, where the cold air mass plowed south on Saturday in the form of a classic “blue norther” (sometimes called a Texas norther). A mesonet station about 6 miles west of Denver City, TX, reported a temperature drop of 36°F in just 10 minutes--from 21°C (70°F) to 1°C (34°F)--accompanied by winds of 40 knots (46 mph) gusting to 69 knots (79 mph). Thanks to Anton Seimon (Appalachian State University) for finding this nugget.

Temperatures across Texas at 4:00 pm CST Saturday ranged from 6°F at Dumas (nearby Dalhart sank to a record-low –8°F by Sunday morning) to a record-hot 92°F at McAllen. Midland set a record high of 80°F on Saturday afternoon, but by 11:59 pm CST, the city’s official temperature had plummeted to 18°F, just one degree short of the day’s record low! It was Midland's biggest one-day temperature spread for any date in records going back to 1930. More than a century ago, a blue norther on November 11, 1911 (11/11/11) managed to pull off the twin-record-in-one-day trick in both Oklahoma City, OK (83°F and 17°F) and Springfield, MO (80°F and 13°F). Both of these Oklahoma City records still stand.

GLOBAL WARMING STRIKES AGAIN

73,

Gary J
N5BAA

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