Continued flooding of parts of the Des Moines River from March snowmelt abated and ended during the first few days in April.
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.
Continued flooding of parts of the Des Moines River from March snowmelt abated and ended during the first few days in April.
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 Mar 31, 8:25 PM CST, 3 hours 35 minutes earlier.
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 925 PM CDT WED MAR 31 2010 .DISCUSSION... WINDS HAVE PRETTY MUCH DROPPED OFF AFTER A LITTLE END OF DAY SURGE. HI CLDS HAVE AGAIN BCM EXTENSIVE AND HAVE UPPED CLOUD COVER A LTL. TEMPS HAVE COOLED A TAD FASTER THAN FCST WITH WNDS DROPPING OFF...BUT EXPECT COOLING TO SLOW QUITE A BIT AND LOWS LOOK OK. FIRE WX WATCH HAS BEEN REISSUED WITH NO CHANGES. WINDS WILL NOT REALLY COME UP STGLY THU UNTIL THE AFTN...BUT THE STG WINDS SHUD CONT INTO THE EVE...IN FACT THAT IS WHEN THE NEW NAM IS SHOWING THE STGST BL WNDS AS SFC LOW MOVES UP TO WRN EDGE OF FCST AREA. && .AVIATION... VFR TNGT THRU THU. WMFNT MOVG BACK NWD OVER AREA FM 16Z TO 22Z THU FLWD BY STG SSELY FLOW OF WARM AIR BY AFTN WITH FQT SFC WND GSTS AOA 25 KTS./ RSR && .PREV DISCUSSION... CHANCES FOR PRECIPITATION TO STAY WEST OF THE CWA INTO WESTERN SD TONIGHT. LIGHT NE WINDS THIS EVENING WILL SWITCH TO THE SE AND INCREASE OVERNIGHT AS LOW PRESSURE DEVELOPS ACROSS THE CENTRAL ROCKIES. CIRRUS...THICK AT TIMES WILL CONTINUE TO MOVE ACROSS THE AREA TONIGHT...WITH THE THICKER CIRRUS INTO CENTRAL SD. TEMPERATURES TO DROP INTO THE 40S. /LIEBL ON THURSDAY...SFC WRMFNT LIFTS RAPIDLY NWD ACROSS THE FA...WHICH WL DRAMATICALLY WARM THE TEMPERATURES TO WELL ABOVE NORMAL AGAIN...AS WELL AS INCREASE THE SLY WINDS. WENT AHEAD AND ISSUED A FIRE WX WATCH FOR FIRE WX ZONES SDZ258...NEZ249...AND IAZ300...WHICH ARE EXTERME SERN SD...EXTREME NERN NEB...AND NW IA AROUND THE SIOUX CITY AREA/LOWER BIG SIOUX VALLEY. IN THESE AREAS...MINIMUM RH VALUES ARE PROJECTED TO FALL TO AT OR JUST BLO 25 PERCENT BY AFTERNOON AND EARLY EVENING...WHICH IS RED FLAG WARNING CRITERIA IN OUR CWFA. THE WINDS SHOULD HAVE NO TROUBLE REACHING RED FLAG CRITERIA OF SUSTAINED OR FQT GUSTS OF 25 MPH...AS BOTH THE NAM AND GFS REALLY CRANK UP THE LOW LEVEL JET OF 40 TO 50 KTS ALONG AND EAST OF A BROOKINGS SD TO YANKTON LINE. SO THE WILDCARD IS MOISTURE RETURN...BUT LOOKING AT UPSTREAM DEWPTS BOTH SOUTH AND SE OF HERE...THEY ARE PRETTY MEAGER. AND THE MODELS RECENTLY HAVE BEEN HAVING A REAL HARD TIME WITH MIXING POTENTIAL...KEEPING DEWPTS TOO WARM AND TEMPS TOO COOL. LOOKING AT WIDESPREAD LOWER 80S PROBABLE IN NW IA IMMEDIATE ADJACENT AREAS IN NERN NEB AND EXTREME SERN SD. BEHIND THE SLOW MOVG SFC FRONT...TEMPS WL LIKELY REMAIN IN THE 60S ACROSS OUR FAR WRN ZONES. THEN WE ARE DEALING WITH OUR WELL ADVERTISED UPPER WAVE/TROF MOVG THRU THIS AREA LATE IN THE WEEK. ALL MODELS ARE SIMILAR IN DEVELOPING MUCH OF THE PCPN ALONG THE ADVANCING SFC FRONT ON FRIDAY...WHICH IS ACROSS OUR ERN ZONES. BUT AWAY FROM THE BOUNDARY...THE ATMOSPHERE IS RATHER CAPPED OFF. I CONTINUED TO LOWER POPS ACROSS OUR WRN HALF THUR NIGHT AND FRIDAY DUE TO A LOT OF SUBSIDENCE FOLLOWING THE WAVE. BUT I DID PLACE A STRIPE OF CHC POPS LATE THURSDAY NIGHT ALONG THE I 29 CORRIDOR FOR TSRA...AS THE WAA AND LOW LEVEL JET REALLY INCREASES IN THAT AREA. CONCERNING TEMPERATURES...THEY WILL NOT MOVE EAST OF THE JAMES RIVER ON FRIDAY...WITH CLOUD COVER AND CAA. SO WHATEVER OUR MINS ARE... THAT WL PROBABLY HOLD US ON FRIDAY AND INDEED...I HAVE SLIGHTLY FALLING TEMPERATURES THRU THE DAY ON FRIDAY E OF THE JAMES. WEST OF THE JAMES...THERE COULD BE SOME PARTLY SUNNY SKIES AND DRIER AIR USHERING IN A SLIGHT REBOUND. FINALLY...IT LOOKS TOO STABLE RIGHT NOW TO WORRY ABOUT SVR TS WITH THIS FROPA PASSAGE. ONE QUESTION IS THE AMOUNT OF WRAPAROUND MOISTURE ON FRI NIGHT AND SATURDAY. THE GFS/NAM AND ECMWF POINT TO DISSAPATING PCPN CHCS AS THE WAVE QUICKLY EXITS EWD. HOWEVER THE CANADIAN GLOBAL EJECTS THE WAVE ON A MORE NWLY TRACK WITH MUCH MORE NEG TILT. THIS ALLOWS A LOT OF WRAP AROUND PCPN TO FOLLOW SUIT DOWN I 29 FRI NIGHT...AND LINGERING IN OUR EAST ON SATURDAY. BECAUSE OF THE MORE NWLY TRACK... THE TEMPS OFF THE SFC ARE ALSO A BIT WARMER WHEN COMPARED TO THE OTHER MODELS...SO THE EXTRA PCPN PER THE CANADIAN MAY NOT NECESSARILY TRANSLATE INTO BETTER ACCUMULATING SNOW CHCS LATE FRIDAY NIGHT DOWN THE I 29 CORRIDOR. SO NO MATTER WHAT MODEL SOLUTION... THE COLDER AND DRIER NAM/GFS AND ECMWF...OR THE WARMER AND WETTER AND CANADIAN...WE SHOULD NOT SEE MUCH IF ANY WRAP AROUND SNOWFALL IN OUR ERN HALF. IT SHOULD BE NOTED...THAT THE NAM IS A BIT SLOWER THAN THE GFS AND ECMWF WITH ITS PROGRESSION EWD OF THIS WHOLE SYSTEM... SO ONE CANNOT TOTALLY DISCOUNT THE CANADIAN GLOBAL. WILL SEE. I DID ADD SOME SMALL POPS FOR AREAS ALONG AND NORTH OF I 90 SAT NIGHT AS ALL MODELS AGREE ON A LITTLE S/W PASSING QUICKLY EWD. DOES NOT LOOK TO BE ANY BIG DEAL...BUT HARD TO IGNORE TOO. IN THE EXTENDED SUN THRU WED...THE NEXT MAJOR PLAYER ENCROACHES INTO OUR AREA MONDAY NIGHT THRU WED. THE VARIOUS MEDR MODELS ARE ALL OVER THE MAP WITH THIS SYTEM...SO DEFERRED HEAVILY TO HPC WITH THEIR ACCESS TO THE ECMWF ENS MEAN GUIDANCE. IT LOOKS WET...JUST A QUESTION OF THE DETAILS. /MJF && .FSD WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. IA...NONE. NE...NONE. && WILLIAMS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 1256 PM CDT WED MAR 31 2010 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-011200- 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- 1256 PM CDT WED MAR 31 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT FLOODING... FLOODING WILL CONTINUE ALONG THE JAMES RIVER UNTIL FURTHER NOTICE. OTHER MAIN STEM RIVERS CONTINUE TO FALL. FIRE DANGER... VERY HIGH TO EXTREME FIRE DANGER WILL BE FOUND ACROSS THE AREA THE REST OF TODAY. GUSTY WINDS AND LOW RELATIVE HUMIDITY...ALONG WITH EXTREMELY DRY GRASSES...WILL ALLOW FOR THE POTENTIAL FOR RAPID SPREAD OF WILD FIRE. PLEASE HANDLE ALL OPEN FIRES WITH CAUTION DUE TO THE EXTREME FIRE DANGER. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A FRONTAL BOUNDARY WILL PUSH ACROSS THE AREA ON THURSDAY NIGHT AND FRIDAY...AND THERE WILL BE A POSSIBILITY OF SCATTERED THUNDERSTORMS WITH THIS SYSTEM. THESE STORMS ARE NOT EXPECTED TO BE SEVERE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK. 97
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
Continued flooding of the Des Moines River abated and ended during the first few days in April, with the minor flooding affecting a few fields. The river began the month at 1.8 feet above flood stage near Windom, and fell below flood stage there on April 5th.
Continued flooding of the Des Moines River abated and ended during the first few days in April, with the minor flooding affecting a few fields. The river began the month at 0.4 feet above flood stage at Jackson, and fell below flood stage there on April 2nd. The minor flooding continued to about April 5th near the northern edge of the county.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2010Every state in 2010This day in weather historyWarnings in Minnesota, April 2010
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: 223897, 223898.