Strong southerly winds just ahead of a cold front produced a gust to high wind strength in Dickinson County of northwest Iowa on the evening of November 10th.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
Strong southerly winds just ahead of a cold front produced a gust to high wind strength in Dickinson County of northwest Iowa on the evening of November 10th.
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 Nov 10, 6:00 PM CST, 2 hours 12 minutes earlier.
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 600 PM CST SAT NOV 10 2012 .DISCUSSION.../ISSUED AT 305 PM CDT/ CLEAR AREA...OF LOW CLOUDS ANYWAY...CONTINUES TO FIGHT ITS WAY OVER MORE OF THE EASTERN PART OF OUR FORECAST AREA. MEANWHILE...STEADIER SOUTH WINDS APPROACHING AREA FROM THE SOUTH AS UPPER WAVE AND MAIN SURFACE SYSTEM GETS CLOSER. THUNDERSTORM DEVELOPMENT STILL EXPECTED WITH SOME SEVERE POTENTIAL FAR SOUTHEAST...AND AS WE HAVE ADVERTISED...THIS WILL NOT REALLY GET GOING UNTIL CLOSER TO 00Z AS SYSTEM BRINGS RAPIDLY INCREASING SHEAR...MOISTURE...AND INSTABILITY INTO AREA. EXPECT SOME OF THESE STORMS TO SPREAD NORTHWEST INTO YKN/FSD/MML AREA IN MORE OF AN ELEVATED NATURE GIVEN THE LATE CLEARING AND LESS HEATING...BUT STILL VERY FAVORABLE SHEAR AND THERMAL PATTERN A LITTLE UPSTAIRS. GUIDANCE QPF REFLECTS EXPECTED DEVELOPMENT WITH A LITTLE OVER A HALF INCH FOR MUCH OF NORTHWEST IOWA...AND SEE NO REASON NOT TO GO WITH IT. FURTHER WEST...AREAS OF LIGHT RAIN ARE EXPECTED TO GRADUALLY INCREASE DURING THE EVENING AND EVENTUALLY THIS WILL CHANGE TO SNOW AS COLDER AIR ARRIVES FROM THE WEST. HOWEVER...PRECIPITATION OUTLOOK CONTINUES TO BE PRETTY LIGHT. TIMING OF THE PRECIPITATION AND COLD AIR SUGGESTS EVEN OUR FAR WESTERN FORECAST AREA IS UNLIKELY TO SEE AS MUCH AS AN INCH OF SNOW. WITH THE NORTHWEST WINDS INCREASING TO FAIRLY STRONG LEVELS...ADDED SOME AREAS OF BLOWING SNOW FAR WEST..BUT THIS IS A MARGINAL CALL AND ONLY WHILE SNOW IS FALLING. AFTER THE SHOWERS AND STORMS FADE INT HE EAST LATER TONIGHT...THE LIGHT RAIN CHANGING TO LIGHT SNOW PATTERN WILL MOVE INTO THAT AREA. HOWEVER THIS POST CONVECTION PRECIPITATION SHOULD BE EVEN MORE SCANTY THAN IN THE WEST...AND ANY PLACE INT HE EAST WILL BE LUCKY...IF THAT IS THE RIGHT WORD...TO GET AS MUCH AS A DUSTING. THE STRONG WINDS AND COLD AIR WILL STEADILY SPREAD EAST OVER THE AREA TONIGHT AND THIS WILL CONTINUE SUNDAY/VETERANS DAY. CONTINUED COOLING IN THE MORNING MEANS PARTS OF THE SOUTHEAST WILL HAVE THEIR TECHNICAL HIGH TEMPERATURES AT THE START OF SUNDAY...WHILE THERE SURE WILL NOT BE MUCH RISE ELSEWHERE. PARTIAL CLEARING SHOULD MOVE GRADUALLY INTO THE SOUTHERN THEN EASTERN FORECAST AREA SUNDAY WITH MORE LIMITED IF ANY CLEARING NORTHWEST...CLOSER TO THE COLD CORE OF UPPER SYSTEM. THERE MAY BE JUST A LITTLE LIGHT SNOW OR RAIN/SNOW LINGERING FAR SOUTHEAST SUNDAY MORNING OTHERWISE NO MEASURABLE PRECIPITATION EXPECTED. CONSIDERED PUTTING IN A FEW FLURRIES NORTH DURING THE DAY BUT DID NOT FOR NOW ON THE FAIRLY LOW THREAT PLUS THE INSIGNIFICANCE OF THE EVENT. TRAILING LOBE OF ENERGY SWINGS THROUGH THE BASE OF THE DEPARTING UPPER TROUGH SUNDAY NIGHT. SUB-500MB LAYER BECOMES MORE SATURATED AS THE WAVE SLIDES THROUGH...WITH GOOD PORTION OF THE MOISTURE LAYER IN THE ICE-BEARING TEMPERATURE RANGE ACROSS THE NORTHERN FORECAST AREA. MODELS NOT SHOWING MUCH QPF THIS FAR SOUTH...BUT WITH COLD AIR MASS IN PLACE AND WEAK LIFT FROM THE WAVE...CANNOT RULE OUT SOME VERY LIGHT SNOW BEING SQUEEZED OUT AND WILL KEEP LOW POPS MAINLY NORTH OF INTERSTATE 90 CORRIDOR SUNDAY NIGHT. POTENTIAL FOR FLURRIES WILL LINGER IN THE NORTHEAST INTO MONDAY MORNING BEFORE THE WAVE/MOISTURE EXIT EAST OF THE AREA. MONDAY WILL REMAIN CHILLY...WITH HIGHS FROM AROUND 30 NORTH OF I-90 TO THE MID 30S IN FAR SOUTHERN PARTS OF THE FORECAST AREA. SURFACE RIDGE/CLEARING SKIES SHOULD ALLOW FOR ANOTHER NIGHT IN THE TEENS MONDAY NIGHT. THEN WEAK MID LEVEL WAVE ZIPS EAST ACROSS THE NORTHERN PLAINS IN MORE ZONAL FLOW PATTERN ON TUESDAY. NOT EXPECTING MUCH IF ANY PRECIP WITH THIS WAVE AS LOWER LEVELS REMAIN FAIRLY DRY. HOWEVER SHOULD SEE DECENT COVERAGE OF MID-HIGH LEVEL CLOUDS AND HAVE BUMPED UP SKY COVER FOR TUESDAY/TUESDAY NIGHT. WITH THE IMPINGING CLOUDS ACROSS THE WEST TUESDAY...HAVE LOWERED HIGHS A FEW DEGREES IN AREAS WEST OF I-29...WHILE LEAVING EASTERN AREAS SIMILAR TO PREVIOUS FORECAST. SHOULD STILL BE MORE MILD THAN MONDAY...WITH HIGHS IN THE 40S EXPECTED THROUGHOUT THE AREA. LONGER RANGE REMAINS FAIRLY QUIET AND MILD WITH ZONAL FLOW AT THE START OF THE PERIOD BECOMING A BIT MORE AMPLIFIED TOWARD THE END OF THE WEEK. WEAK NORTHERN STREAM WAVE DROPS THROUGH THE AREA THURSDAY WITH LITTLE FANFARE. SOUTHERN STREAM WAVE THEN STILL INDICATED LIFTING INTO THE AREA LATE IN THE WEEK...THOUGH MODELS STILL HAVING DIFFICULTY WITH TIMING/STRENGTH OF THIS FEATURE. YESTERDAY AT THIS TIME 09/12Z ECMWF HAD SPED UP THE WAVE...IN CONTRAST TO SLOWER PREVIOUS RUNS. 10/00Z AND 10/06Z GFS FOLLOWED SUIT...BRINGING LIGHT PRECIP CHANCE INTO THE AREA ON FRIDAY. SUBSEQUENT RUNS HAVE RETURNED TO SLOWER SOLUTION. WITH RIDGING BEHIND DEPARTING NORTHERN STREAM WAVE MENTIONED ABOVE...SLOWER TIMING SEEMS REASONABLE AND WILL TREND POPS MORE TOWARD FRIDAY NIGHT/SATURDAY TIME FRAME. TEMPERATURES LOOK TO REMAIN ON THE WARM SIDE OF NORMAL THROUGH THE LONGER RANGE PERIOD WITH LOWS IN THE UPPER 20S AND 30S...AND HIGHS LARGELY IN THE 40S... WITH SOME 50S IN THE SOUTH ON WEDNESDAY. && .AVIATION.../FOR THE 00Z TAF ISSUANCE/ VERY STRONG COLD FRONT WILL BE MOVING EASTWARD ACROSS THIS AREA THIS EVENING. A REAL VARIETY OF WEATHER WILL BE OCCURRING WITH THUNDERSTORMS AHEAD OF THE FRONT...RAIN CHANGING TO SNOW IN OUR WESTERN ZONES...AND SHOWERS IN BETWEEN. PLENTY OF LIFR TO IFR CONDITIONS CAN BE EXPECTED IN THIS AREA...WITH THE LOWEST OF THE CONDITIONS OCCURRING DURING SNOWFALL IN OUR WESTERN ZONES WHEN LIFR WILL LIKELY BE COMMON FOR A FEW HOURS THIS EVENING. FROM 06Z TO 09Z...THE RAINFALL SHOULD BE CLEARING OUR EASTERN ZONES...LEAVING PRIMARILY MVFR CONDITIONS TO DOMINATE THE REST OF TONIGHT AND SUNDAY. HOWEVER AT TIMES ON SUNDAY...WOULD NOT BE SURPRISED IF THE MVFR STRATUS DECK CLEARS OUT. THE WINDS WILL BE NOTABLE BEHIND THE FRONT ALSO...WITH NW TO WNW WINDS GUSTING FREQUENTLY TO 30 TO 35 KNOTS TONIGHT AND SUNDAY. && .FSD WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. IA...NONE. NE...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 1107 AM CST SAT NOV 10 2012 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-111200- 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- 1107 AM CST SAT NOV 10 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS... SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE THIS AFTERNOON AND BECOME MORE NUMEROUS THIS EVENING IN NORTHWEST IOWA...SOUTHWEST MINNESOTA...AND IN EXTREME EASTERN SOUTH DAKOTA. SEVERE STORMS WITH GUSTS TO 60 MPH AND QUARTER SIZE HAIL WILL BE POSSIBLE IN NORTHWEST IOWA...EXTREME NORTHEAST NEBRASKA...A SMALL PART OF EXTREME SOUTHEAST SOUTH DAKOTA...AND IN SOUTHWEST MINNESOTA EAST OF WORTHINGTON. THIS AFTERNOON WITH THE MAIN THREAT OVER NORTHWEST IOWA INTO SOUTHERN PARTS OF SOUTHWEST MINNESOTA. WINTER WEATHER... RAIN WILL TURN TO SNOW TONIGHT WITH THE BEST CHANCE FOR ACCUMULATING SNOWFALL OVER CENTRAL PARTS OF SOUTH DAKOTA. WEST OF THE JAMES RIVER SNOWFALL AMOUNTS OF 1 TO 3 INCHES WILL BE POSSIBLE WHILE EAST OF THE JAMES RIVER AMOUNTS OF A HALF AN INCH OR SO WILL BE MOST LIKELY. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NORTHWEST WINDS OF 20 TO 35 MPH ARE LIKELY ON SUNDAY AND WHEN COUPLED WITH THE MUCH COLDER TEMPERATURES WILL PRODUCE WIND CHILL VALUES IN THE TEENS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE POSSIBLE AFTER 400 PM CST IN NORTHWEST IOWA...EXTREME NORTHEAST NEBRASKA...EXTREME SOUTHEAST SOUTH DAKOTA...AND IN PART OF SOUTHWEST MINNESOTA NEAR THE SOUTHERN BORDER OF THE STATE. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 718 PM CST SAT NOV 10 2012 SDZ038>040-050-052>055-057>061-063>066-068-069-110430- BEADLE-KINGSBURY-BROOKINGS-GREGORY-JERAULD-SANBORN-MINER-LAKE- BRULE-AURORA-DAVISON-HANSON-MCCOOK-CHARLES MIX-DOUGLAS-HUTCHINSON- TURNER-BON HOMME-YANKTON- INCLUDING THE CITIES OF...HURON...DE SMET...ARLINGTON... LAKE PRESTON...BROOKINGS...GREGORY...BURKE...WESSINGTON SPRINGS... ALPENA...WOONSOCKET...HOWARD...MADISON...CHAMBERLAIN...KIMBALL... PLANKINTON...WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA... EMERY...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE...WAGNER... PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT... PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE... MARION...VIBORG...HURLEY...CHANCELLOR...TYNDALL...SCOTLAND... SPRINGFIELD...AVON...TABOR...YANKTON 718 PM CST SAT NOV 10 2012 ...SPECIAL WEATHER STATEMENT... NORTHWESTERLY WINDS WILL PICK UP FOR A COUPLE OF HOURS BEHIND A STRONG COLD FRONT PUSHING ACROSS THE REGION. WINDS WILL BRIEFLY GUST TO 40 TO 50 MPH THROUGH LATE EVENING BEFORE TAPERING OFF TO 20 TO 30 MPH LATER TONIGHT.
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
A gust to 63 mph was measured 3 miles south southeast of Lake Park Iowa.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2012Every state in 2012This day in weather historyWarnings in Iowa, November 2012
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: 421072.