Ticker for April 11, 2001

                
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April 11, 2001     April 11, 2001     April 11, 2001     April 11, 2001



Very Strong Winds Rake Oklahoma

Western Oklahoma is being scoured by punishing winds this afternoon
behind a dryline.  In the last 24 hours, no less than 2906 wind gusts
greater than 40 mph have been observed by the Oklahoma Mesonet, and
139 have exceeded severe limits.  Most of these have come with clear
skies.  Several were associated with a squall line that traveled
east-to-west overnight.  Gusts of 91 and 85 mph were observed at
Stigler in association with this convection.

Here are some of the Mesonet's all-star gusts from the last 24 hours:

Station      Gust     Date    Time
Stigler      91 mph   Apr 11   7:20 am
Stigler      85 mph   Apr 11   7:25 am
Marshall     73 mph   Apr 11  12:35 am
Kingfisher   71 mph   Apr 11   1:55 am
Marshall     71 mph   Apr 11  12:20 am
Marshall     70 mph   Apr 11  12:30 am
Goodwell     69 mph   Apr 11  11:35 am
Beaver       69 mph   Apr 11  10:25 am
Fort Cobb    69 mph   Apr 10  11:35 pm
Goodwell     68 mph   Apr 11  11:55 am
Goodwell     68 mph   Apr 11  11:15 am
Kingfisher   68 mph   Apr 11  12:00 am
Kingfisher   68 mph   Apr 10  11:55 pm
Goodwell     67 mph   Apr 11  11:40 am
Goodwell     67 mph   Apr 11  11:25 am
Kingfisher   67 mph   Apr 11   2:00 am
Marshall     67 mph   Apr 11  12:25 am
Kingfisher   67 mph   Apr 11  12:10 am


Strong and severe winds from the last 7 days can be sorted a number of
ways on the Mesonet Premium Subscriber page.  Click on "Storm Tools"
and have fun!


More Cool Weather Stuff

This afternoon a very distinctive comma cloud sits over Kansas.  Here's
a cool picture:



Last night, the Mesonet captured the advance of the dryline particularly
well.  Take a look at the weather map from 2:00 am:



Note the position of the dryline (about one county east of the Texas
panhandle) and the squall line (east of I-35).  The Mesonet 3-hour
"delta" maps show some of the effects of these features:




The dewpoint change map shows the advance of the dryline very well.
The pressure change map captures, from west to east: the rises behind
the dryline, the pressure falls in advance of the dryline and in the
wake of the squall line, the pressure rises at the squall line, and
pressure falls in advance of the squall line.

Cool stuff!