Powerful Storm Brings Blizzard and Tornadoes

An intense storm system centered over northeastern Minnesota Tuesday afternoon is responsible for more than a dozen reports of possible tornadoes, wind gusts over 70 mph, blizzard warnings in North Dakota, and records for the lowest barometric pressure ever recorded in the states of Minnesota and Wisconsin. This storm will push a cold front through Maryland on Wednesday.  Showers and thunderstorms are likely as the front moves through with a return to more seasonal temperatures by the end of the week.  Some of the severe weather reports from the National Weather Service are listed below.

Tom Tasselmyer

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
1055 AM CDT TUE OCT 26 2010
…MINNESOTA ALL TIME LOWEST PRESSURE RECORD BROKEN THIS MORNING…
…PRESSURE IS STILL FALLING AND WILL CONTINUE INTO THE AFTERNOON…

REMEMBER THAT THIS INFORMATION IS PRELIMINARY. THE LOW IS STILL
STRENGTHENING SO THE VALUES LISTED BELOW ARE LIKELY TO CHANGE.

AN UNUSUALLY INTENSE LOW WAS AFFECTING THE STATE OF MINNESOTA THIS
MORNING. AT 1013 AM CDT…THE AUTOMATED WEATHER OBSERVING SYSTEM AT
AITKIN MINNESOTA RECORDED A 962.3 MILLIBAR /28.42 INCHES/ PRESSURE.
THIS BREAKS THE ALL TIME MINNESOTA STATE RECORD FOR THE LOWEST
OBSERVED PRESSURE.
THE PREVIOUS RECORD WAS 962.6 MB SET ON NOVEMBER 10 1998 AT ALBERT
LEA AND AUSTIN IN SOUTHERN MINNESOTA.

THE LOW CONTINUES TO DEEPEN AND THE PRESSURE WILL LIKELY CONTINUE TO
FALL. THEREFORE…THIS STATEMENT IS PRELIMINARY AND WILL BE UPDATED
ONCE THE LOWEST PRESSURE IS FINALLY OBSERVED.

****  EVENING UPDATE TO MINNESOTA PRESSURE RECORD****

At 5:00 p.m. CST Orr, MN in the north central part of the state reported a

barometric pressure of 28.23″.  Note:  Baltimore’s all-time lowest

barometric pressure  is 28.51″ set during the blizzard of March 13, 1993.

 

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1208 PM CDT TUE OCT 26 2010
…NEW STATE RECORD FOR LOWEST PRESSURE RECORDED…

VERY STRONG LOW PRESSURE MOVED SLOWLY ACROSS NORTHEAST MINNESOTA
THIS MORNING. THE CENTRAL PRESSURE OF THIS SYSTEM FELL RAPIDLY
OVERNIGHT AND THROUGH THE MORNING…WITH A NEW RECORD SET THIS
MORNING FOR LOWEST PRESSURE RECORDED IN THE STATE OF WISCONSIN.THE
NEW RECORD WAS SET AT SUPERIOR AT 1135 AM CDT WITH A MEASUREMENT OF
28.38 INCHES…OR 961.06 MB. THE PREVIOUS RECORD WAS 28.45
INCHES…OR 963.43 MB…AT GREEN BAY ON APRIL 3 OF 1982.


...SELECTED PEAK WIND GUSTS IN MILES PER HOUR...

...ARKANSAS...
GAITHER 4 NW                            62                     

...IOWA...
CLINTON                                 65
BOONE AIRPORT 4 ESE                     58
SPENCER                                 58                   

...ILLINOIS...
HECKER                                  78
METROPOLIS                              69
ST. CHARLES                             60
TONTI                                   60                     

...INDIANA...
TERRE HAUTE                             70
POSEYVILLE                              65
WASHINGTON                              65                     

...MINNESOTA...
DOVRAY 3 W                              59
HANLEY FALLS                            59
LAKE BENTON 1 WNW                       59
MARSHALL                                58
OLIVIA                                  56                   

...MISSOURI...
HAZELWOOD                               62
ST. LOUIS                               62
JEFFERSON CITY                          60                     

...NORTH DAKOTA...
BISMARCK                                61
HETTINGER                               59
GARRISON                                56
JAMESTOWN                               55                                         

...SOUTH DAKOTA...
PIERRE                                  66
ABERDEEN                                62
CASTLEWOOD                              62
SISSETON                                61
BULLHEAD 11 S                           59
LONG LAKE 10 WNW                        58                    

...TEXAS...
AMARILLO 6 ENE                          61                     

...WISCONSIN...
KENOSHA                                 68
PARDEEVILLE                             61
CHILTON                                 57
NEW HOLSTEIN                            57
SEVERE STORMS PREDICTION CENTER TORNADO REPORTS  
6AM THROUGH 4PM TUESDAY, OCTOBER 26, 2010 

      EVENT    LOCATION
   1 *TORN  2 S CHEBANSE IL                           

   2 *TORN  4 E PEOTONE IL
   3 *TORN  5 NNE KENOSHA AIRPORT WI                  
            *** 2 INJ *** EF1 TORNADO THAT LASTED 6 MINUTES 

   4 *TORN  3 WSW RACINE WI                              

   5 *TORN  2 NE COLDWATER KY
   6 *TORN  WANATAH IN                                 
            EF1 TORNADO CONFIRMED IN LAPORTE COUNTY        

   7 *TORN  3 ENE KOKOMO IN                                 

   8 *TORN  2 NNW WABASH IN                                 
            EF0 TORNADO CONFIRMED IN WABASH COUNTY INDIANA

   9 *TORN  1 ESE BRACKEN IN                                 
            EF1 TORNADO CONFIRMED IN HUNTINGTON COUNTY      

  10 *TORN  4 S DRAKESBORO KY                            

  11 *TORN  3 W CONVOY OH
            EF0 TORNADO CONFIRMED IN VAN WERT COUNTY OHIO. 

  12 *TORN  LOUISVILLE KY                                     
            BRIEF TOUCHDOWN WEST OF MCALPINE LOCKS

  13 *TORN  BRIGHT IN                                     
            ROTATION ON THE GROUND. LIMBS BEING PULLED OFF 

  14 *TORN  3 NE BUCKLAND OH                            
            MAJOR STRUCTURAL DAMAGE IN CRIDERSVILLE.

  15 *TORN  1 W FIVE POINTS OH                             
            POSSIBLE TORNADO. PATH ABOUT ONE EIGHTH OF A
                    MILE LONG.
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