Heavy Springtime Rains over Southern Minnesota:
April 6-7, 2006

A powerful storm system sagged to the southeast from Nebraska to Kansas from April 6th to the 7th, 2006. Two separate waves of thunderstorms associated with this storm moved over Minnesota. Heavy thunderstorms developed from west central Wisconsin, westward across the Twin Cities to Olivia. The northward progress of the storms stalled and then continued to rain heavily during the evening hours of the 6th. 2.58 inches fell at the Twin Cities International Airport, the highest total for any day in April on record. The previous record was 2.22 on April 27, 1975. There were reports of highways with standing water during the height of the storm. I-494 was closed for a time between 12th and Nicollet avenues and also I-94 between Cedar and Nicollet Avenues due to flooding. Power was out to approximately 10,000 people during the evening of the 6th. The rains tapered off around 10pm in the Twin Cities.

Round two of the storm began shortly after the first wave fizzled out. This time the heavy rains were focused along Interstate 90 in far southern Minnesota. This covered a larger area and was more intense than the first. The thunderstorms dissipated by the late morning hours of the 7th, but not before causing flooding in Freeborn, Faribault, Jackson, Martin, Nobels, and Rock County. Street flooding was reported in Fairmont, Dunnel in Martin County, Albert Lea and Winnebago.

Listed below are National Weather Service Statements about the storms.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
902 AM CDT FRI APR 07 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0830 AM     FLASH FLOOD      FAIRMONT                43.64N 94.46W 
04/07/2006                   MARTIN             MN   LAW ENFORCEMENT 

            SCATTERED ROADS AND BASEMENTS FLOODED IN AND AROUND 
            FAIRMONT.

0830 AM     FLASH FLOOD      DUNNELL                 43.56N 94.77W 
04/07/2006                   MARTIN             MN   LAW ENFORCEMENT 

            SCATTERED STREETS AND BASEMENTS FLOODED IN AND AROUND 
            DUNNELL.

0830 AM     FLASH FLOOD      ALBERT LEA              43.66N 93.37W 
04/07/2006                   FREEBORN           MN   LAW ENFORCEMENT 

            BACKYARDS AND MINOR STREET FLOODING ALL OVER THE COUNTY.

0830 AM     FLASH FLOOD      WINNEBAGO               43.77N 94.17W 
04/07/2006                   FARIBAULT          MN   LAW ENFORCEMENT 

            SCATTERED STREETS UNDERWATER IN WINNEBAGO AND SURROUNDING
            AREA. 

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
915 PM CDT THU APR 06 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0329 PM     HAIL             5 NW RENVILLE           44.85N 95.28W 
04/06/2006  M0.75 INCH       RENVILLE           MN   CO-OP OBSERVER  

0416 PM     HAIL             HAMBURG                 44.73N 93.96W 
04/06/2006  M1.75 INCH       CARVER             MN   LAW ENFORCEMENT 

0422 PM     HAIL             NORWOOD/YOUNG AMERICA   44.78N 93.92W 
04/06/2006  M0.75 INCH       CARVER             MN   AMATEUR RADIO   

            INTERSECTION OF HIGHWAY 5 AND 33.

0425 PM     HAIL             5 SW HUTCHINSON         44.84N 94.45W 
04/06/2006  M0.88 INCH       MCLEOD             MN   TRAINED SPOTTER 

0426 PM     HAIL             5 W MONTEVIDEO          44.95N 95.82W 
04/06/2006  M0.75 INCH       LAC QUI PARLE      MN   TRAINED SPOTTER 

            COVERING GROUND.

0453 PM     HAIL             1 S COLOGNE             44.76N 93.79W 
04/06/2006  M0.88 INCH       CARVER             MN   FIRE DEPT/RESCUE

0505 PM     HAIL             5 S COLOGNE             44.70N 93.79W 
04/06/2006  M1.00 INCH       CARVER             MN   AMATEUR RADIO   

0515 PM     HAIL             2 W CHASKA              44.82N 93.65W 
04/06/2006  M0.88 INCH       CARVER             MN   AMATEUR RADIO   

0520 PM     HAIL             CHASKA                  44.82N 93.61W 
04/06/2006  M0.75 INCH       CARVER             MN   TRAINED SPOTTER 

0622 PM     HAIL             BLOOMINGTON             44.83N 93.32W 
04/06/2006  M0.75 INCH       HENNEPIN           MN   AMATEUR RADIO   

0642 PM     FLASH FLOOD      MINNEAPOLIS             44.96N 93.27W 
04/06/2006                   HENNEPIN           MN   TRAINED SPOTTER 

            FOUR INCHES OF WATER FLOWING OVER THE ROAD AT 42ND STREET
            AND 30TH AVENUE

0645 PM     HAIL             ST PAUL                 44.95N 93.10W 
04/06/2006  M1.00 INCH       RAMSEY             MN   TRAINED SPOTTER 

0649 PM     HAIL             MINNEAPOLIS             44.96N 93.27W 
04/06/2006  M0.75 INCH       HENNEPIN           MN   TRAINED SPOTTER 

0653 PM     HAIL             ST PAUL                 44.95N 93.10W 
04/06/2006  M0.88 INCH       RAMSEY             MN   TRAINED SPOTTER 

0706 PM     FLASH FLOOD      MINNEAPOLIS             44.96N 93.27W 
04/06/2006                   HENNEPIN           MN   TRAINED SPOTTER 

            TWELVE INCHES OF WATER FLOWING OVER THE ROAD AT PORTLAND 
            AND DIAMOND LAKE ROAD.

0709 PM     FLASH FLOOD      BLOOMINGTON             44.83N 93.32W 
04/06/2006                   HENNEPIN           MN   TRAINED SPOTTER 

            TWELVE INCHES OF WATER OVER THE ROAD AT KNOX AVENUE AND 
            AMERICAN BOULEVARD.

0715 PM     FLASH FLOOD      BLOOMINGTON             44.83N 93.32W 
04/06/2006                   HENNEPIN           MN   TRAINED SPOTTER 

            INTERSTATE 494 CLOSED BETWEEN CEDAR AVENUE AND NICOLLET 
            DUE TO FLOODING. 

0724 PM     HAIL             ST PAUL                 44.95N 93.10W 
04/06/2006  M0.75 INCH       RAMSEY             MN   TRAINED SPOTTER 


MAX/MIN TEMPERATURE AND PRECIPITATION TABLE FOR
CENTRAL AND SOUTH CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN 
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1011 AM CDT FRI APR 07 2006

 VALUES REPRESENT YESTERDAYS HIGHS... LOW OVER THE LAST 12 HOURS
 ...PRECIPITATION OVER THE LAST 24 HOURS ENDING AT 6AM...
 SNOWFALL OVER THE PAST 24 HOURS AND SNOW DEPTH AT 6AM


.BR MSP  0407  C DH00/TX/DH06/TAIRZP/PP/SF/SD
:
:
:          STATION             MAX     MIN     24-HR   SNOW  SNOW
:           NAME               TEMP    TEMP    PCPN    FALL  DEPTH
AXN : ALEXANDRIA MN ARPT     :  61  /   34  /  0.00  /    M /  M
EAU : EAU CLAIRE WI ARPT     :  66  /   41  /  0.56  /  0.0 / 0
STC : ST CLOUD MN ARPT       :  64  /   37  /  0.27  /  0.0 / 0
MIC : CRYSTAL MN ARPT        :  60  /   41  /  0.89  /    M /  M
MSP : MINNEAPOLIS MN ARPT    :  62  /   43  /  2.58  /  0.0 / 0
STP : ST PAUL MN ARPT        :  62  /   43  /  1.73  /    M /  M
FCM : EDEN PRAIRIE MN ARPT   :  59  /   42  /  1.37  /    M /  M
RWF : REDWOOD FALLS MN ARPT  :  55  /   42  /    T   /    M /  M

:
:             COOPERATIVE OBSERVER REPORTS
:VALUES ARE FOR THE PREVIOUS 24 HOURS ENDING BETWEEN 6 AM AND
:        8 AM LOCAL TIME UNLESS OTHERWISE NOTED
:
:          STATION               MAX    MIN   24-HR  SNOW SNOW
:           NAME                 TEMP   TEMP  PCPN   FALL DEPTH
:MINNESOTA
MPXM5 : CHANHASSEN  MN  WFO      :   58 / 41 /  1.28 /  0.0 / 0
ALBM5 : ALBERT LEA               :   55 / 44 /  2.57 /  0.0 / 0
FIRM5 : FAIRMONT                 :   56 / 41 /  3.35 /    M /  M
FORM5 : FOREST LAKE              :   63 / 36 /  0.86 /    M /  M
SPKM5 : SPRING PARK WATER PATROL :   57 / 41 /  0.84 /    M /  M
MRRM5 : MORRIS                   :   55 / 34 /  0.47 /    M /  M
SCOM5 : ST CLOUD SCSU            :    M /  M /  0.38 /    M /  M
WASM5 : WASECA                   :   56 / 40 /  0.71 /    M /  M
BWNM5 : BROWNTON WWTP            :    M /  M /  0.40 /    M /  M
CHKM5 : CHASKA                   :   58 / 44 /  1.14 /  0.0 / 0
CHNM5 : CHANHASSEN 2SW           :    M /  M /  1.42 /    M /  M
FRBM5 : FARIBAULT                :   57 / 36 /  0.08 /  0.0 / 0
HSTM5 : HASTINGS TW              :    M /  M /  0.67 /    M /  M
LSAM5 : MINNEAPOLIS LOWER ST ANT :    M /  M /  0.92 /    M /  M
MADM5 : MADISON                  :    M /  M /  0.61 /    M /  M
MWDM5 : MAPLEWOOD                :    M /  M /  1.38 /    M /  M
MKAM5 : MANKATO                  :    M /  M /  0.08 /    M /  M
RFDM5 : ROCKFORD                 :    M /  M /  0.30 /    M /  M
STJM5 : ST JAMES                 :   55 / 40 /  0.80 /  0.0 / 0
SRWM5 : SHOREWOOD                :    M /  M /  1.47 /    M /  M
SPLM5 : ST PAUL                  :   60 / 39 /  1.30 /  0.0 / 0
SWRM5 : STILLWATER               :    M /  M /  1.14 /    M /  M
WACM5 : WACONIA                  :    M /  M /  0.92 /    M /  M
WLDM5 : WILD RIVER STATE PARK    :   64 / 26 /  0.11 /  0.0 / 0
WNNM5 : WINNEBAGO                :   56 / 42 /  2.11 /    M /  M
ZBRM5 : ZUMBROTA                 :   57 / 43 /  0.07 /    M /  M
:WISCONSIN
AGSW3 : AUGUSTA RANGER STATION   :   65 / 41 /  0.56 /  0.0 / 0
BMRW3 : BLOOMER WI               :   63 / 38 /  0.36 /    M /  M
BALW3 : BALDWIN WI               :    M /  M /  0.71 /    M /  M
CHPW3 : CHIPPEWA FALLS           :    M /  M /  0.53 /    M /  M
ELRW3 : EAU CLAIRE 3SW           :   65 / 42 /  0.59 /  0.0 / 0
JIMW3 : JIM FALLS WI             :   65 / 39 /  0.25 /    M /  M
SVYW3 : SPRING VALLEY            :    M /  M /  0.74 /    M /  M
STAW3 : STANLEY WI               :   64 / 37 /  0.23 /  0.0 / 0
WEYW3 : WEYERHAEUSER WI          :    M /  M /  0.00 /    M /  M


MAX/MIN TEMPERATURE AND PRECIPITATION TABLE FOR
SE SOUTH DAKOTA/SW MINNESOTA/NW IOWA/NE NEBRASKA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1124 AM CDT FRI APR 7 2006

.BR FSD 0407 C DH01/TAIRZXZ/DH07/TAIRZPZ/PPDRZZZ
:
:                  YESTERDAY  12 HR     24 HR    
:                     HIGH     LOW      PCPN     
:
BKX :BROOKINGS SD   :    54  /   39   /        
9V9 :CHAMBERLAIN SD :    58  /   37   /   0.83      
HON :HURON SD       :    60  /   38   /   0.56      
MHE :MITCHELL SD    :    60  /   41   /   2.05      
FSD :SIOUX FALLS SD :    66  /   43   /   3.36      
YKN :YANKTON SD     :    84  /   48   /   2.15      
:
LYV :LUVERNE MN     :    63  /   43   /   1.57      
MJQ :JACKSON MN     :    55  /   45   /   2.25      
MML :MARSHALL MN    :    52  /   41   /             
PQN :PIPESTONE MN   :    54  /   39   /   0.15      
TKC :TRACY MN       :    54  /   41   /   0.07      
MWM :WINDOM MN      :    57  /   45   /             
OTG :WORTHINGTON MN :    55  /   43   /             
:
CKP :CHEROKEE IA    :    77  /   52   /   0.21      
ORC :ORANGE CITY IA :    79  /   50   /   1.21      
SHL :SHELDON IA     :    75  /   45   /   1.10     
SUX :SIOUX CITY IA  :    86  /   52   /   0.68      
SPW :SPENCER IA     :    73  /   48   /   0.69      
SLB :STORM LAKE IA  :    77  /   50   /   0.18     
.END
:
:
CO-OP STATION             24 HOUR READINGS     ENDING    
                          HIGH  LOW   PREC       AT      
3SE   : SPENCER           72    49    0.02    12 AM FRI          
SPRI4 : SPIRIT LAKE       59    47    0.05    12 AM FRI          
MMLM5 : MARSHALL          52    49            12 AM FRI          
FAXS2 : FAIRFAX           63    40    2.20    06 AM FRI          
BROS2 : BROOKINGS         54    36      T     08 AM FRI          
CENS2 : CENTERVILLE       82    43    1.90    08 AM FRI          
LKFM5 : LAKEFIELD         54    40    2.23    07 AM FRI 
MRFS2 : MADISON           56    36    0.61    09 AM FRI          
PKSS2 : PICKSTOWN         71    44    1.76    07 AM FRI          
SIBI4 : SIBLEY            64    42    3.10    07 AM FRI          
WRNM5 : WORTHINGTON       57    41    2.73    07 AM FRI          
YTNS2 : YANKTON           85    48    2.01    06 AM FRI          
HURS2 : HURON             52    37    0.18    09 AM FRI          
JCKM5 : JACKSON           52    34    2.45    09 AM FRI          
WDOM5 : WINDOM                        1.56    09 AM FRI          
VERS2 : VERMILLION        84    47    1.59    09 AM FRI          
-

Return Return to Minnesota Climatology Working Group Main page


URL: http://climate.umn.edu/doc/journal/rain060406_07.htm
Last modified: April 7, 2006