Heavy rain caused minor flooding of Pipestone Creek in mid July.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS FSD wrote it up.
Heavy rain caused minor flooding of Pipestone Creek in mid July.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before the first event at Jul 11, 2:50 AM CST, 3 hours 10 minutes earlier.
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 350 AM CDT MON JUL 11 2011 .DISCUSSION... NOT A LOT OF CHANGES MADE TO THE FORECAST TODAY WITH ACTIVE WEATHER MUCH OF THE NIGHT. MCS ACROSS NORTHWEST IOWA WILL GRADUALLY MOVE OUT TODAY BUT A LOT OF CONVECTIVE DEBRIS WILL BE LEFT IN ITS WAKE. THIS ALONG WITH THE NORTHEAST FETCH OF AIR WILL KEEP TEMPERATURES COOLER THAN YESTERDAY AND HAVE LOWERED HIGHS SOME. AS THE SURFACE HIGH BUILDS IN FROM THE NORTH...FLOW WILL BECOME EASTERLY AND BOUNDARY WILL STALL ACROSS THE SOUTH DAKOTA/NEBRASKA BOARDER INTO NORTHWEST IOWA. THIS ELEVATED BOUNDARY WILL BECOME THE FOCUS FOR ADDITIONAL THUNDERSTORM DEVELOPMENT TONIGHT INTO TUESDAY MORNING. MODELS ARE ACTUALLY SHOWING A BAND OF STRENGTHENING FRONTOGENESIS THROUGH THE OVERNIGHT HOURS. THE SPEED AND DIRECTIONAL CONVERGENCE ASSOCIATED WITH THE LOW LEVEL JET APPEARS TO BE FOCUSED FURTHER SOUTH ALONG I-80...AND MAY AFFECT CONVECTIVE POTENTIAL THIS FAR NORTH. THE NAM/ECMWF/CANADIAN ARE IN FAIRLY GOOD AGREEMENT SHOWING FOCUS FOR THUNDERSTORMS ALONG AND SOUTH OF I-90...WHILE THE GFS IS FURTHER SOUTH ACROSS NEBRASKA. HAVE RAISED POPS SOME FOR TONIGHT...ESPECIALLY ALONG AND SOUTH OF I-90 BUT DID NOT GO OVERLY HIGH AS EFFECTS OF LOW LEVEL JET TO THE SOUTH ARE STILL UNCERTAIN. DID NOT MAKE ANY CHANGES TO THE FORECAST BEYOND TUESDAY MORNING WITH ACTIVE WEATHER TONIGHT. && .FSD WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. IA...NONE. NE...NONE. &&
HAZARDOUS WEATHER OUTLOOK...CORRECTED NATIONAL WEATHER SERVICE SIOUX FALLS SD 534 AM CDT MON JUL 11 2011 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-121200- AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA- CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE- DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON- IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN- LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN- OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN- SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON- 534 AM CDT MON JUL 11 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS... A FEW SEVERE STORMS ARE POSSIBLE ALONG THE NEBRASKA SOUTH DAKOTA BORDER AND NEAR THE SIOUX CITY METRO AREA EARLY TUESDAY MORNING. THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUST TO 60 MPH AND HAIL TO THE SIZE OF QUARTERS. FLOODING... MINOR CRESTS ARE EXPECTED ALONG TO BIG SIOUX RIVER BASIN OVER THE NEXT FEW DAYS DUE TO RECENT HEAVY RAINS. RECORD HIGH RELEASES ALONG THE MISSOURI RIVER WILL CONTINUE INTO LATE SUMMER. HIGH WATER LEVELS WILL CAUSE SIGNIFICANT IMPACTS BETWEEN CHAMBERLAIN AND SIOUX CITY. ADDITIONALLY...THE JAMES RIVER WILL BE IN FLOOD UNTIL FURTHER NOTICE...ALONG WITH LOWER PORTIONS OF THE BIG SIOUX NEAR SIOUX CITY DUE TO BACKWATER EFFECTS FROM THE MISSOURI RIVER. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THUNDERSTORMS ARE POSSIBLE ON TUESDAY. THERE IS THE POTENTIAL THAT SOME OF THESE STORMS MAY TRAIN...PRODUCING LOCALLY HEAVY RAINFALL. THE GREATEST CHANCE FOR THIS OCCURRENCE WILL BE ALONG AND SOUTH OF INTERSTATE 90 TUESDAY MORNING. WARM AND HUMID CONDITIONS ARE EXPECTED THURSDAY THROUGH SUNDAY WITH HEAT INDICES OF 100 TO 110 ACROSS THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE POSSIBLE ALONG THE MISSOURI RIVER VALLEY AFTER MIDNIGHT EARLY TUESDAY MORNING. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
131 AM CDT MON JUL 11 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0128 AM TSTM WND GST 5 WSW MECKLING 42.82N 97.17W
07/11/2011 E60 MPH YANKTON SD TRAINED SPOTTER
POWER OUT
&&
LAFLINPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
146 AM CDT MON JUL 11 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0143 AM FLASH FLOOD ARNOLDS PARK 43.36N 95.13W
07/11/2011 DICKINSON IA EMERGENCY MNGR
2 FEET OF WATER OVER HIGHWAY 71
0143 AM FLASH FLOOD SPIRIT LAKE 43.42N 95.11W
07/11/2011 DICKINSON IA EMERGENCY MNGR
STREET FLOODING IN SPIRIT LAKE
&&
MJFPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
210 AM CDT MON JUL 11 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0155 AM TSTM WND GST CHEROKEE 42.75N 95.55W
07/11/2011 M61 MPH CHEROKEE IA AWOS
&&
LAFLINPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
341 AM CDT MON JUL 11 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0310 AM HEAVY RAIN 1 S TERRIL 43.29N 94.97W
07/11/2011 M2.70 INCH DICKINSON IA BROADCAST MEDIA
RELAYED TO KICD RADIO FROM PUBLIC.
0332 AM HEAVY RAIN MILFORD 43.33N 95.15W
07/11/2011 M4.50 INCH DICKINSON IA BROADCAST MEDIA
RELAYED TO KICD RADIO FROM PUBLIC.
&&
CJANSENPRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE SIOUX FALLS SD
412 AM CDT MON JUL 11 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0825 PM TSTM WND GST 7 NNE HENDRICKS 44.60N 96.39W
07/10/2011 E60.00 MPH LINCOLN MN TRAINED SPOTTER
1233 AM TSTM WND GST 5 WSW MECKLING 42.82N 97.17W
07/11/2011 E60.00 MPH YANKTON SD TRAINED SPOTTER
TREE LIMBS DOWN
1255 AM TSTM WND GST NE NEWCASTLE 42.65N 96.87W
07/11/2011 E65.00 MPH DIXON NE TRAINED SPOTTER
POWER OUTAGES IN NEWCASTLE
0128 AM TSTM WND GST 5 WSW MECKLING 42.82N 97.17W
07/11/2011 E60.00 MPH YANKTON SD TRAINED SPOTTER
POWER OUT
0143 AM FLASH FLOOD ARNOLDS PARK 43.36N 95.13W
07/11/2011 DICKINSON IA EMERGENCY MNGR
2 FEET OF WATER OVER HIGHWAY 71
0143 AM FLASH FLOOD SPIRIT LAKE 43.42N 95.11W
07/11/2011 DICKINSON IA EMERGENCY MNGR
STREET FLOODING IN SPIRIT LAKE
0155 AM TSTM WND GST CHEROKEE 42.75N 95.55W
07/11/2011 M61.00 MPH CHEROKEE IA AWOS
0310 AM HEAVY RAIN 1 S TERRIL 43.29N 94.97W
07/11/2011 M2.70 INCH DICKINSON IA BROADCAST MEDIA
RELAYED TO KICD RADIO FROM PUBLIC.
0332 AM HEAVY RAIN MILFORD 43.33N 95.15W
07/11/2011 M4.50 INCH DICKINSON IA BROADCAST MEDIA
RELAYED TO KICD RADIO FROM PUBLIC.
&&
CJANSENPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
543 AM CDT MON JUL 11 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0511 AM FLASH FLOOD ROUND LAKE 43.54N 95.47W
07/11/2011 NOBLES MN TRAINED SPOTTER
5.9 INCHES OF RAIN IN THE LAST 36 HOURS. WATER STANDING
IN YARD.
&&
BTThe national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Runoff from heavy rain caused minor lowland flooding along Pipestone Creek. The creek crested at 1.2 feet above flood stage at Pipestone on July 11th.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2011Every state in 2011This day in weather historyWarnings in Minnesota, July 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 336488.