National Weather Service United States Department of Commerce

June 30th, 2014 Severe Storms

 

Photos Storm Reports Rainfall Reports Wind Reports

 

A cluster of showers and thunderstorms developed over eastern Nebraska and intensified as they marched east across Iowa, eventually organizing into a "bow echo." A bow echo is a line of storms (in the shape of a bow on radar) notorious for producing severe wind gusts and damage. The northern end of this bow crossed Fayette and Clayton counties in Iowa, as well as much of southern Wisconsin. Wind gusts as high as 80 mph were reported, along with numerous trees down. Very heavy rainfall also accompanied the bow, prompting flash flood warnings.

When the bow passed, winds picked up from the southeast around Preston and  La Crosse, which both saw wind gusts of 40 to 50 mph. These gusts were associated with a phenomenon called a "wake low," which forms in the wake of strong thunderstorm complexes. Basically, the atmosphere is trying to readjust from the high winds that the bow produced.

Radar Loop

Radar Loop from 1:37 pm to 7:36 pm 

(click for larger loop)


Photos:

Near Montfort WI (Grant County) 

Shelf cloud near Montfort, WI (Grant County)

 Sunset in Tomah in wake of storms

Sunset in Tomah, WI in the wake of the storms

 

 


Storm Reports:

graphic showing storm reports from June 30th


 

 

 

 
PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE LA CROSSE WI 818 PM CDT MON JUN 30 2014 ...TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ...DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0235 PM TSTM WND GST OELWEIN 42.68N 91.91W 06/30/2014 M58 MPH FAYETTE IA AWOS KOLZ G50KTS 0240 PM TSTM WND GST OELWEIN 42.68N 91.91W 06/30/2014 E60 MPH FAYETTE IA TRAINED SPOTTER WIND GUSTS OF 50 TO 60 MPH. 0300 PM TSTM WND GST STRAWBERRY POINT 42.68N 91.54W 06/30/2014 E60 MPH CLAYTON IA PUBLIC 60+ MPH WIND GUSTS 0305 PM TSTM WND DMG VOLGA 42.80N 91.54W 06/30/2014 CLAYTON IA LAW ENFORCEMENT TREES AND POWERLINES DOWN 0307 PM TSTM WND GST VOLGA 42.80N 91.54W 06/30/2014 E80 MPH CLAYTON IA TRAINED SPOTTER 0315 PM TSTM WND DMG ELKADER 42.86N 91.40W 06/30/2014 CLAYTON IA LAW ENFORCEMENT TREES AND POWERLINES DOWN 0316 PM NON-TSTM WND GST GARBER 42.74N 91.26W 06/30/2014 E75 MPH CLAYTON IA LAW ENFORCEMENT TREES AND POWER LINES DOWN 0335 PM TSTM WND DMG GUTTENBERG 42.79N 91.10W 06/30/2014 CLAYTON IA LAW ENFORCEMENT A LOT OF TREES DOWN BEING CLEANED UP FROM GARBER TO OSTERDOCK AND GUTTENBERG. TIME ESTIMATED FROM RADAR WHEN THE SEVERE WIND GUSTS MOVED THROUGH. 0349 PM TSTM WND DMG PATCH GROVE 42.94N 90.97W 06/30/2014 GRANT WI EMERGENCY MNGR TREES DOWN 0350 PM TSTM WND DMG 3 WSW WERLEY 43.00N 90.82W 06/30/2014 GRANT WI TRAINED SPOTTER 60-70 MPH ESTIMATED WIND GUSTS. TREE BRANCHES AND LIMBS FLYING. SOME TREES DOWN NEARBY. 0400 PM TSTM WND GST 2 N LANCASTER 42.88N 90.71W 06/30/2014 M78 MPH GRANT WI LAW ENFORCEMENT 0403 PM FLASH FLOOD GUTTENBERG 42.79N 91.10W 06/30/2014 CLAYTON IA LAW ENFORCEMENT WATER OVER HIGHWAY 52 FOR A TIME BUT HAS RECEDED SINCE 0410 PM FLASH FLOOD OSBORNE 42.80N 91.44W 06/30/2014 CLAYTON IA LAW ENFORCEMENT WATER WAS OVER HIGHWAY 13 FOR A TIME BUT HAS RECEDED 0411 PM FUNNEL CLOUD LIVINGSTON 42.90N 90.43W 06/30/2014 GRANT WI EMERGENCY MNGR 0411 PM TSTM WND GST LIVINGSTON 42.90N 90.43W 06/30/2014 M70 MPH GRANT WI EMERGENCY MNGR 0417 PM NON-TSTM WND GST 1 N FRENCH ISLAND 43.87N 91.26W 06/30/2014 M48 MPH LA CROSSE WI ASOS KLSE ASOS 0426 PM NON-TSTM WND GST 2 ESE LA CROSSE 43.81N 91.19W 06/30/2014 E43 MPH LA CROSSE WI OFFICIAL NWS OBS MEASURED WIND GUST ON OFFICE EQUIPMENT 0800 PM FLASH FLOOD 3 W RANDALIA 42.86N 91.95W 06/30/2014 FAYETTE IA LAW ENFORCEMENT T AVENUE...BETWEEN HIGHWAY 93 AND 160TH ST...IS CLOSED DUE TO FLOODING.

Rainfall Amounts:

Radar Estimated Precipitation

Radar Estimated Precipitation (click for larger image) 


 

 

 
LOCATION AMOUNT TIME/DATE LAT/LON ...IOWA... ...ALLAMAKEE... 4 ENE WATSON 0.46 IN 0745 PM 06/30 43.11N/91.26W 3 SE WATERVILLE 0.38 IN 0707 PM 06/30 43.17N/91.24W 3 S DORCHESTER 0.31 IN 0700 PM 06/30 43.42N/91.51W ...CHICKASAW... IONIA 2W 0.88 IN 0745 PM 06/30 43.03N/92.50W ...CLAYTON... ELKADER 1.48 IN 0745 PM 06/30 42.84N/91.40W LITTLEPORT 1.22 IN 0745 PM 06/30 42.75N/91.37W GARBER 0.93 IN 0715 PM 06/30 42.74N/91.26W BLOODY RUN CREEK 0.25 IN 0700 PM 06/30 43.04N/91.21W ...FAYETTE... FAYETTE 1.69 IN 0755 PM 06/30 ELDORADO 0.72 IN 0745 PM 06/30 43.05N/91.81W ...FLOYD... CHARLES CITY 0.25 IN 0730 PM 06/30 43.06N/92.67W ...HOWARD... 3 NE RICEVILLE 0.33 IN 0755 PM 06/30 43.40N/92.50W ...MITCHELL... SAINT ANSGAR 0.28 IN 0745 PM 06/30 43.38N/92.92W ...WINNESHIEK... DECORAH 0.33 IN 0745 PM 06/30 43.30N/91.80W BLUFFTON 0.27 IN 0745 PM 06/30 43.41N/91.90W ...MINNESOTA... ...FILLMORE... FILLMORE 0.10 IN 0730 PM 06/30 43.76N/92.27W SO.FORK ROOT RIVER 0.05 IN 0730 PM 06/30 43.72N/91.98W ...HOUSTON... HOUSTON 0.24 IN 0745 PM 06/30 43.77N/91.57W MOUND PRAIRIE 0.20 IN 0745 PM 06/30 43.78N/91.45W ...MOWER... DOBBING CR 0.15 IN 0730 PM 06/30 43.67N/92.95W TURTLE CREEK 0.13 IN 0730 PM 06/30 43.65N/92.98W 1 NNE VARCO 0.13 IN 0700 PM 06/30 43.64N/92.97W LANSING 0.09 IN 0730 PM 06/30 43.75N/92.95W ...OLMSTED... 1 SSE STEWARTVILLE 0.08 IN 0750 PM 06/30 43.84N/92.48W 1 WSW ROCHESTER 0.05 IN 0757 PM 06/30 44.01N/92.49W ORONOCO 1W 0.05 IN 0730 PM 06/30 44.17N/92.55W PINE ISLAND 1S 0.04 IN 0700 PM 06/30 44.19N/92.65W BELTLINE-BEAR CREEK 0.04 IN 0730 PM 06/30 44.01N/92.45W 2 ENE ROCHESTER 0.04 IN 0730 PM 06/30 44.03N/92.42W ROCHESTER BELTLINE 0.03 IN 0730 PM 06/30 44.01N/92.47W ROCHESTER 3W 0.03 IN 0730 PM 06/30 44.02N/92.53W 4 ESE DOUGLAS 0.03 IN 0755 PM 06/30 44.09N/92.49W 3 NE ROCHESTER 0.03 IN 0752 PM 06/30 44.04N/92.44W ORONOCO 0.02 IN 0730 PM 06/30 44.16N/92.54W OXBOW PARK ALERT GAGE 0.02 IN 0700 PM 06/30 44.09N/92.64W 3 ESE DOUGLAS 0.02 IN 0805 PM 06/30 44.08N/92.51W CASCADE CREEK 0.02 IN 0730 PM 06/30 44.03N/92.47W 3 NE ROCHESTER 0.02 IN 0800 PM 06/30 44.05N/92.45W ...WABASHA... 1 NE BEAR VALLEY 0.06 IN 0753 PM 06/30 44.32N/92.44W 1 E LAKE CITY 0.05 IN 0750 PM 06/30 44.45N/92.27W MAZEPPA 3ESE 0.04 IN 0730 PM 06/30 44.26N/92.49W ZUMBRO RIVER 0.01 IN 0700 PM 06/30 44.32N/92.00W ...WINONA... DAKOTA 0.02 IN 0700 PM 06/30 43.91N/91.36W WHITEWATER RIVER NEAR BEAVER 0.02 IN 0745 PM 06/30 44.15N/92.00W ...WISCONSIN... ...CLARK... NEILLSVILLE 1W 0.06 IN 0700 PM 06/30 44.56N/90.61W ...CRAWFORD... STEUBEN 0.53 IN 0745 PM 06/30 43.18N/90.86W DE SOTO 0.28 IN 0751 PM 06/30 43.42N/91.19W ...GRANT... MUSCODA 6S 1.05 IN 0730 PM 06/30 GRANT RIVER 0.90 IN 0700 PM 06/30 42.72N/90.82W 1 ENE BOSCOBEL 0.77 IN 0803 PM 06/30 43.15N/90.68W MUSCODA 0.36 IN 0745 PM 06/30 43.20N/90.44W ...JACKSON... 1 E BLACK RIVER FALLS 0.08 IN 0715 PM 06/30 44.30N/90.83W ...JUNEAU... MAUSTON 0.25 IN 0752 PM 06/30 43.80N/90.07W NECEDAH 0.18 IN 0748 PM 06/30 44.03N/90.08W ...LA CROSSE... LA CROSSE RIVERSIDE PARK 0.32 IN 0700 PM 06/30 43.81N/91.26W LA CROSSE NWS 0.27 IN 0700 PM 06/30 2 SW LA CROSSE 0.16 IN 0700 PM 06/30 43.80N/91.26W 1 SW LA CROSSE 0.02 IN 0718 PM 06/30 43.81N/91.25W ...MONROE... 2 ESE MELVINA 0.06 IN 0745 PM 06/30 43.79N/90.75W ...TAYLOR... 3 NE LUBLIN 0.03 IN 0714 PM 06/30 45.11N/90.69W ...TREMPEALEAU... 2 WSW GALESVILLE 0.08 IN 0751 PM 06/30 44.07N/91.39W ...VERNON... READSTOWN 0.41 IN 0700 PM 06/30 43.45N/90.76W LA FARGE 0.34 IN 0700 PM 06/30 43.57N/90.64W ONTARIO 0.28 IN 0700 PM 06/30 43.72N/90.59W OBSERVATIONS ARE COLLECTED FROM A VARIETY OF SOURCES WITH VARYING EQUIPMENT AND EXPOSURE. NOT ALL DATA LISTED ARE CONSIDERED OFFICIAL.

Wind Reports:

LOCATION                       SPEED     TIME/DATE       LAT/LON             
OELWEIN MUNICIPAL AIRPORT      58 MPH    0235 PM 06/30   42.68N/91.97W        
PRESTON FILLMORE COUNTY AIRPOR 48 MPH    0332 PM 06/30   43.68N/92.18W        
LA CROSSE REGIONAL AIRPORT     48 MPH    0414 PM 06/30   43.88N/91.26W        
WFO LA CROSSE                  40 MPH    0500 PM 06/30   43.82N/91.19W        
2 ESE CANTON                   39 MPH    0405 PM 06/30   43.51N/91.88W        
PRAIRIE DU CHIEN  AIRPORT      39 MPH    0355 PM 06/30   43.02N/91.12W        
SPARTA/FORT MC COY AIRPORT     37 MPH    0455 PM 06/30   43.96N/90.74W        
3 NE RICEVILLE                 36 MPH    0325 PM 06/30   43.40N/92.50W        
PLATTEVILLE MUNICIPAL AIRPORT  36 MPH    0415 PM 06/30   42.69N/90.44W        
1 ENE DEXTER                   35 MPH    0305 PM 06/30   43.73N/92.68W        
2 N TOMAH                      32 MPH    0505 PM 06/30   44.02N/90.50W        
CHARLES CITY AIRPORT           32 MPH    0335 PM 06/30   43.07N/92.61W        
VOLK FIELD AIRPORT             32 MPH    0530 PM 06/30   43.94N/90.25W        
2 N IONIA                      30 MPH    0425 PM 06/30   43.07N/92.46W        
4 NNW RIDGEVILLE               30 MPH    0508 PM 06/30   43.94N/90.60W        
VIROQUA MUNICIPAL AIRPORT      29 MPH    0635 PM 06/30   43.58N/90.90W        
4 E NORDNESS                   29 MPH    0434 PM 06/30   43.25N/91.70W        
BLACK RIVER FALLS AREA AIRPORT 28 MPH    0435 PM 06/30   44.25N/90.86W        
2 S FAYETTE                    27 MPH    0310 PM 06/30   42.80N/91.80W        
SAINT ANSGAR                   25 MPH    0245 PM 06/30   43.37N/92.92W        
ROCKFORD                       25 MPH    0300 PM 06/30   43.05N/92.93W        
4 SSE ARLINGTON                25 MPH    0254 PM 06/30   42.69N/91.65W        
1 E MAUSTON                    25 MPH    0603 PM 06/30   43.80N/90.06W        
2 WSW GALESVILLE               25 MPH    0415 PM 06/30   44.07N/91.39W       

 
OBSERVATIONS ARE COLLECTED FROM A VARIETY OF SOURCES WITH VARYING
EQUIPMENT AND EXPOSURE. NOT ALL DATA LISTED ARE CONSIDERED OFFICIAL.