Path: utzoo!utgpu!ugw.utcs.utoronto.ca!UIUCVMD!STORM-L Date: Mon, 12 Feb 90 16:14:49 EST Reply-To: STORM-L@VMD.CSO.UIUC.EDU Sender: STORM-L Storms and weather related info From: Chris Novy - WA9V Subject: National Weather Summary To: UofToronto LAN redistribution Message-ID: <90Feb12.170952est.58201@ugw.utcs.utoronto.ca> Newsgroups: list.storm-l Distribution: ut Approved: devnull@gpu.utcs.toronto.edu ZCZC MKCNWX1 ABUS1 KWBC 122100 NATIONAL WEATHER SUMMARY NATIONAL WEATHER SERVICE KANSAS CITY MO 3 PM CST MON FEB 12 1990 Cold Alaskan air heading south Mother nature's Christmas gift to much of the continental U.S. was a prolonged spell of mild weather which has prevailed since the last week of December. Alaska...meanwhile...has been experiencing severe cold the past couple of weeks...and a change in the weather pattern across the northern hemisphere has that cold air in Alaska shifting toward the forty-eight states. Strong northerly winds have begun to usher sharply colder air into the north central and northwestern U.S...with snow in the Pacific Northwest. A heavy snow warning is in effect this afternoon and tonight for elevations above 500 feet in the coastal mountains of western Oregon. Snow advisories are in effect through tonight for the Cascade Mountains and the Williamette Valley. Snow advisories are also in effect today for Cascade Mountains ...coastal regions and southwestern interior sections of Washington state. Advisories for snow and blowing snow have been posted for tonight for the mountains passes of Montana west of the Continental Divide. A high wind warning is in effect for the mountainous areas of southeastern Wyoming where wind gusts to 60 MPH are possible this afternoon. A winter storm watch has been posted for Tuesday for the Nebraska Panhandle. The arctic cold front crossing the northwestern U.S. is expected to bring windy conditions to southern California. A wind advisory is in effect this afternoon and tonight for the mountains and northern deserts of southern California. A high wind watch has been posted for Tuesday for the mountains and northern deserts...while a wind advisory has been issued for Tuesday for the southern deserts. A frost advisory has been posted for Wednesday night for the agricultural areas around San Diego CA. While strong and gusty north winds were ushering cold air into the north central U.S...strong and gusty south winds prevailed from the southern plains to the middle Mississippi Valley. Temperatures were in the 70s early this afternoon across the southern plains region and the lower Mississippi Valley...and were in the 60s as far north as Iowa. Several cities have already broken previous record high temperatures for the date. Temperatures were also in the 60s in the southeastern U.S...with 70s across the Florida Peninsula. Temperatures were warming into the 60s and 70s in southern California and southern Arizona. Readings were still only in the 20s this afternoon across parts of Minnesota...Wisconsin and Michigan. Temperatures were dropping during the daylight hours in the northern plains region and the northern Rockies...due to the invasion of arctic air. At midday...Cutbank MT was reporting a temperature of just 3 degrees above zero...and strong northerly winds were producing a wind chill reading 39 degrees below zero. Parts of Alaska were experiencing rapid warming as the cold air over the state began to slide down Canada toward the U.S. Nome AK experienced a temperature rise of 19 degrees in twenty-one minutes this morning...from 25 degrees below zero to 6 degrees below zero between 811 am and 832 AM. Temperatures remained above freezing last night over California and southern Arizona...and from the High Plains region to the southern and middle Atlantic Coast. Morning lows were in the 50s in southern California and parts of southern Arizona...and in the lower Rio Grande Valley of Texas. Morning lows in southern Florida were in the 50s and lower 60s. Temperatures dipped into the teens and single numbers across parts of Minnesota...Wisconsin and Michigan...and across northern New England and upstate New York. Subzero readings were confined to northern Maine. The low for the nation this morning was 5 degrees below zero at Caribou ME. Showers and thunderstorms produced record rains in Florida on Sunday. Rainfall totals of 1.22 inches at Melbourne FL and 0.84 inches at Orlando FL established new records for February 11th. Sunday marked a record forty-seven straight days of above normal temperatures for La Crosse WI. Since the 27th of december temperatures at La cross have been averaging 11 degrees above normal. On this date in 1899...Texas and the eastern plains experienced their coldest morning of modern record. The mercury dipped to 8 degress below zero at Fort Worth TX...and to 22 below zero at Kansas City MO. The temperature at Camp Clarke NE plunged to 47 degrees below zero to establish a state record. In the eastern U.S...Washington D.C. hit 15 degrees below zero...and Charleston SC was blanketed with a record four inches of snow. Hugh Crowther National Severe Storms Forecast Center --------------------------------------------------------------------------- Chris Novy - WA9V BITNET: axvsccn@uicvmc Southern Illinois Univ. Internet: axvsccn@uicvmc.aiss.uiuc.edu Morris Library - Systems Packet: wa9v@wd9ebq FAX: (618) 453-8109 Carbondale, IL 62901-6632 Phone: (618) 453-1683 or (618) 457-6149 ICBM: 37.43N 89.12W ---------------------------------------------------------------------------