Minor flooding occurred along the Mississippi River in McGregor (Clayton County). The flooding was a result of run off from heavy rains across Minnesota and Wisconsin and snow melt.
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The episode as NWS ARX wrote it up.
Minor flooding occurred along the Mississippi River in McGregor (Clayton County). The flooding was a result of run off from heavy rains across Minnesota and Wisconsin and snow melt.
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 La Crosse, WI wrote its last area forecast discussion before the first event at Apr 18, 5:53 AM CST, 4 hours 22 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LA CROSSE WI 653 AM CDT FRI APR 18 2014 .SHORT TERM...(TODAY AND TONIGHT) ISSUED AT 325 AM CDT FRI APR 18 2014 QUIET AND SEASONAL CONDITIONS ARE EXPECTED TODAY AS A SURFACE RIDGE AXIS SHIFTS EASTWARD INTO THE GREAT LAKES. SOME FOG HAS DEVELOPED THIS MORNING ACROSS PORTIONS OF NORTH CENTRAL IOWA...SOUTH CENTRAL MINNESOTA ON UP TO NORTH CENTRAL WISCONSIN IN RESPONSE TO IDEAL RADIATIONAL COOLING CONDITIONS. VISIBILITY HAS DROPPED TO BETWEEN 1/4SM TO 2SM AT TIMES...SO WILL HAVE TO WATCH FOR HOW WIDESPREAD THE FOG BECOMES AND WHETHER ANY DENSE FOG FORMS. OTHERWISE...WINDS WILL GRADUALLY SHIFT AROUND TO THE EAST SOUTHEAST AND BE ON THE INCREASE LATER IN THE AFTERNOON AND EVENING AS THE RIDGE SHIFTS EAST AND THE NEXT SYSTEM REACHES THE DAKOTAS. TEMPERATURES WILL CLIMB BACK UP TO JUST BELOW SEASONAL NORMS WITH SOME HIGH LEVEL CLOUD COVER COMING IN AHEAD OF THIS NEXT SYSTEM. .LONG TERM...(SATURDAY THROUGH THURSDAY) ISSUED AT 325 AM CDT FRI APR 18 2014 THE MAIN FOCUS THROUGH EARLY NEXT WEEK IS ON A FRONT THAT STALLS OUT ACROSS THE REGION AND PROVIDES SOME SHOTS FOR RAIN AND A FEW THUNDERSTORMS. AS THE SURFACE LOW THAT CURRENTLY IS IN WYOMING LIFTS UP INTO ONTARIO SATURDAY NIGHT...IT WILL DRAG A COLD FRONT INTO THE REGION BEFORE STALLING IT OUT FROM CENTRAL IOWA INTO SOUTHERN WISCONSIN. THIS AREA WILL BE THE FOCUS FOR RAIN TO DEVELOP ALONG AS A WEAK MID LEVEL TROUGH COMES ACROSS THE PLAINS AND DEEPER MID LEVEL TROUGHS TRACK ACROSS SOUTHERN CANADA. INITIALLY THERE IS NOT MUCH FORCING ALONG THE FRONT SATURDAY NIGHT INTO EARLY SUNDAY...BUT AS THE MID LEVEL TROUGHS APPROACH LATER ON SUNDAY...THE FRONT GETS A LITTLE EXTRA SHOT OF LOW LEVEL MOISTURE TRANSPORT ALONG WITH SOME WEAK INSTABILITY. THIS APPEARS TO BE THE HIGHEST CHANCE FOR SEEING SOME RAIN OVER THE WEEKEND BEFORE THE FRONT DRIFTS EAST ON MONDAY. SEVERE WEATHER IS NOT LOOKING LIKELY AS THE DEEP SHEAR IS NON-EXISTENT AND 18.00Z NAM/GFS PROFILES SHOW THAT THE MEAGER INSTABILITY THAT DOES DEVELOP IS SKINNY AND ONLY A FEW HUNDRED J/KG INTO NORTHEAST IOWA. AFTER A RIDGE MOVES THROUGH MID WEEK...A DEEPER TROUGH WILL MOVE IN ON THURSDAY WITH ANOTHER ROUND OF CONVECTION POSSIBLE. LOW LEVEL MOISTURE TRANSPORT LOOKS BETTER WITH THIS DEEPER TROUGH THAT TAPS INTO THE GULF. THIS SHOULD LEAD TO SOME HIGHER CAPE AS WELL WITH THUNDER A BIT MORE LIKELY. && .AVIATION...(FOR THE 12Z TAFS THROUGH 12Z SATURDAY MORNING) ISSUED AT 652 AM CDT FRI APR 18 2014 VISIBILITIES ARE BEING REDUCED INTO THE 2-4SM RANGE AT KRST THIS MORNING THANKS TO LIGHT WINDS AND A PERIOD OF CLEAR SKIES DURING THE EARLY MORNING HOURS. THE BR SHOULD DISSIPATE AROUND 14Z THIS MORNING AS SOUTHERLY WINDS START TO INCREASE ON THE BACK SIDE OF DEPARTING HIGH PRESSURE THEN VFR CONDITIONS ARE EXPECTED THROUGH THE REST OF THE FORECAST PERIOD. A WEAK UPPER LEVEL DISTURBANCE WILL BRING A BKN CLOUD DECK TO TAF SITES TODAY WITH CLOUD BASES AROUND 8KFT. LOW PRESSURE MOVES ACROSS THE DAKOTAS TONIGHT AND DRAWS CLOSER TO THE UPPER MISSISSIPPI RIVER VALLEY PRODUCING INCREASING SOUTHEAST WINDS LATE IN THE NIGHT. PLAN ON WIND SPEEDS OF 10 TO 17 KTS LATE TONIGHT. && .HYDROLOGY... ISSUED AT 325 AM CDT FRI APR 18 2014 RECENT RAINFALL AND SNOWMELT IS KEEPING RIVER LEVELS ELEVATED ACROSS THE REGION...PARTICULARLY ALONG THE MISSISSIPPI RIVER. A FRONT IS EXPECTED TO SLOWLY MOVE ACROSS THE REGION AND STALL OUT SATURDAY NIGHT THROUGH SUNDAY NIGHT WITH PERIODS OF RAIN EXPECTED OVER THIS TIME FRAME. CURRENT PROJECTIONS SAY THAT A HALF INCH TO AN INCH OF RAIN IS POSSIBLE...PARTICULARLY IN AN AREAS WHERE RAIN TRAINS OVER THE SAME SPOT. && .ARX WATCHES/WARNINGS/ADVISORIES... WI...NONE. MN...NONE. IA...NONE. && SHORT TERM...HALBACH LONG TERM...HALBACH AVIATION...WETENKAMP HYDROLOGY...HALBACH
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LA CROSSE WI 449 AM CDT FRI APR 18 2014 IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-191200- MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE- CLAYTON-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON- TAYLOR-CLARK-BUFFALO-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU- ADAMS-VERNON-CRAWFORD-RICHLAND-GRANT- 449 AM CDT FRI APR 18 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST IOWA...SOUTHEAST MINNESOTA...AND SOUTHWEST INTO CENTRAL WISCONSIN. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE FOR THUNDERSTORMS SATURDAY AFTERNOON INTO MONDAY. SEVERE WEATHER IS NOT ANTICIPATED WITH THESE THUNDERSTORMS WITH LIGHTNING THE MAIN HAZARD. THERE ALSO IS A CHANCE FOR THUNDERSTORMS TUESDAY NIGHT THROUGH THURSDAY THOUGH IT IS TOO EARLY TO DISCERN IF ANY SEVERE WEATHER IS POSSIBLE. PORTIONS OF THE MISSISSIPPI RIVER WILL BE IN FLOOD THROUGH EARLY NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH THIS WEEKEND. .EMERGENCY MANAGEMENT COORDINATION... NO WEBINAR IS SCHEDULED. HALBACH
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Run off from heavy rains and snow melt pushed the Mississippi River out of its banks in McGregor. The river crested around a half foot above the flood stage at 16.53 feet.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2014Every state in 2014This day in weather historyWarnings in Iowa, April 2014
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: 511110.