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From: Jesse Ferrell (WeatherMatrix) (jesse{at}weathermatrix.net)
Date: Sat Jan 31 2004 - 14:35:45 EST
Correction: Both of these events were on Friday, not Thursday. Perhaps the
high school teacher was misquoted as saying this happened on Thursday?
At 02:22 PM 1/31/2004, you wrote:
>NOTES:
>
>A nearby Agri station shows a rise in temperature from -5 to 35 in a matter
>of minutes on FThursday afternoon. The wind gust increased from 20
>(sustained at 5) to 43mph at the time as well, with nearly a 180 degree
>change on wind direction. The "fall" you see in the graph a few hours
>later was the station stopping transmitting for about 15 hours (the line is
>linear).
>
>TIME TEMP DEWP HUM GUST DIR
>13:00 3.3 -1.8 79 22 E
>13:15 10.1 9.4 97 20 WNW
>13:30 34.7 28.3 77 43 WSW
>
>Graph of time in question:
><http://www.met.utah.edu/cgi-bin/droman/time_mesowest.cgi?stn=BFAM&unit=&time=&hour1=&day1=&month1=&year1=&hours=48&past>
>
>Station Page for BFAM:
><http://www.met.utah.edu/cgi-bin/droman/meso_base.cgi?stn=BFAM>
>
>I'm not sure why the NWS would be "Skeptical" (see media article below)
>because their own station at Cut Bank, MT showed a 30 degree temperature
>rise during two hours at nearly the same time Friday, then a drop of 20
>degrees in 5 minutes and a .16" fall in pressure Friday night. Maybe they
>meant they were skeptical about the amount (a nearly-50 degree fall claimed).
>
>TIME TEMP DEWP HUM SPD GUST DIR PRES
>
>12:55 1.4 -2.2 84 7 E 29.50
>13:55 17.6 12.2 79 7 29.44
>14:55 33.8 23.0 64 30 33 W 29.41
>
>20:55 26.6 19.4 74 17 NNW 29.60
>21:00 6.8 1.4 78 20 29 N 29.44
>
>Graph of time in question:
><http://www.met.utah.edu/cgi-bin/droman/time_mesowest.cgi?stn=CTB&unit=&time=&hour1=&day1=&month1=&year1=&hours=48&past>
>
>Station Page for KCTB:
><http://www.met.utah.edu/cgi-bin/droman/meso_base.cgi?stn=CTB>
>
>The NWS out of Great Falls issued some Local Storm Reports for high wind
>gusts during this event but did not mention temperature swings (the event
>was an Outflow Boundary according to them)
>http://www.weathermatrix.net/archive/lsr/0487.html
>
>QUOTES FROM MEDIA ARTICLE:
>http://www.greatfallstribune.com/news/stories/20040131/localnews/325859.html
>
>"In addition to harsh weather conditions this week, the region also has
>experienced some rare wintertime climate phenomena.
>
>The areas of Showdown and White Sulphur Springs, south of Great Falls, and
>Great Divide near Marysville all saw thunderstorms on Friday.
>
>Along the Rocky Mountain Front, weather watchers recorded drastic
>temperature swings.
>
>Browning High School science teacher Don Keihn said he recorded a 49-degree
>temperature swing in six minutes on Thursday.
>
>While weather experts in Great Falls were skeptical, they said the shift is
>possible.
>
>Great Falls actually holds the world record for the greatest temperature
>swing in the shortest length of time.
>
>Meteorologists at the National Weather Service office recorded a
>temperature change from minus 32 degrees Fahrenheit to 15 degrees
>Fahrenheit in seven minutes on Jan. 11, 1980, Williamson said."
>
>
>--
>===================================================================
>Jesse Ferrell - Meteorologist / Webmaster / Founder - WeatherMatrix
>7000 Weather Enthusiasts Can't Be Wrong! www.weathermatrix.net
>
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