North winds gusted to 15 to 30 mph with even higher gusts behind a cold front that pushed through the area early in the morning of September 12. The strong winds caused serious injury to two people when they fell off the roof of a building after wind caught a long metal sheet they were handling.
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The episode as NWS OAX wrote it up.
North winds gusted to 15 to 30 mph with even higher gusts behind a cold front that pushed through the area early in the morning of September 12. The strong winds caused serious injury to two people when they fell off the roof of a building after wind caught a long metal sheet they were handling.
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 Omaha, NE wrote its last area forecast discussion before the first event at Sep 12, 5:11 AM CST, 4 hours 49 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 611 AM CDT WED SEP 12 2012 .AVIATION... 12Z TAFS FOR KOFK...KOMA AND KLNK. DECENT FORCING IS EXPECTED TODAY INTO EARLY TONIGHT NEAR AND BEHIND A COLD FRONT THAT WILL PRESS SOUTHEAST ACROSS THE KLNK AND KOMA VICINITIES BY MIDDAY. WEAK OUTFLOW COULD BRING VARIABLE WINDS TO KOMA AND KLNK THIS MORNING BUT IN GENERAL A BRISK NORTH OR NORTHEAST WIND WAS FORECAST AT TAF SITES BY THIS AFTERNOON. THE FORCING SHOULD BRING AN INCREASE IN SHOWERS TO THE AREA BUT VERY DRY LOW LEVEL AIR CREATE UNCERTAINTIES TO HOW LOW VISIBILITIES OR CEILINGS WILL DROP. THE ISOLATED SHOWERS AND EVEN A RUMBLE OF THUNDER THIS MORNING WAS NOT EXPECTED TO BE MAIN PRECIP AREA. THE MAIN OUTBREAK SHOULD SPREAD OR DEVELOP INTO NORTHEAST NEBRASKA THROUGH THIS AFTERNOON AND THEN SETTLE SOUTHEAST ACROSS KLNK/KOMA THIS EVENING. MODEL FORECAST SOUNDINGS POINTED AT KLNK DEVELOPING THE LOWEST CIGS WITH THIS RAIN EVENT AND 12Z TAF FORECAST REFLECTED THAT. HOWEVER...A PERIOD OF LOWER CIGS/VSBYS ALSO POSSIBLE AT KOFK AND KOMA LATER TODAY/EARLY TONIGHT AS RAIN AREA INCREASES. CONDITIONS SHOULD IMPROVE FROM NORTH TO SOUTH TONIGHT. CHERMOK && .PREV DISCUSSION... /ISSUED 245 AM CDT WED SEP 12 2012/ DISCUSSION... COLD FRONT EXTENDED FROM NORTHWEST IOWA ACROSS NORTHEAST NEBRASKA INTO SOUTH CENTRAL NEBRASKA ALONG A KSUX TO KEAR LINE AT 07Z. SCATTERED SHOWERS AHEAD OF THE FRONT HAVE BECOME MORE NUMEROUS DURING THE PAST HOUR OVER SOUTHEAST NEBRASKA INTO SOUTHWEST IOWA. 00Z GFS AND 04Z HRRR APPEAR TO BE SIMILAR IN HAVING THE FRONT NEAR A KOMA TO KHJH LINE BY 12Z...A BIT FASTER THAN THE 00Z NAM. WILL ADD CHANCE OF SHOWERS AND ISOLATED THUNDER TO AREAS SOUTH OF THE FRONT THIS MORNING BASED ON RADAR TRENDS AND SHORT RANGE MODELS. WILL ALSO LIKELY TREND HIGHS TODAY TOWARD THE SOMEWHAT COOLER GFS GUIDANCE BASED ON FASTER TIMING OF THAT MODEL. OTHERWISE...STILL LOOKS GOOD FOR WIDESPREAD RAIN ACROSS MUCH OF THE AREA TONIGHT WITH SYSTEM MOVING OUT OF SOUTHEAST AREAS THURSDAY MORNING. FAIR AND DRY AFTER THAT WITH COOLER TEMPERATURES HANGING AROUND FOR A CHANGE. IN THE EXTENDED...AREA REMAINS UNDER THE INFLUENCE OF COOLER NORTHWEST FLOW WITH ANOTHER STRONG TROUGH MOVING THROUGH THE REGION EARLY NEXT WEEK. STILL SOME CHANCE OF SHOWERS WITH COLD FRONT ON MONDAY WITH LOW POPS MAINTAINED FOR THAT PERIOD. SOME DIFFERENCES BETWEEN THE GFS AND EURO IN HANDLING THIS FASTER FLOW SO WILL HAVE TO SEE HOW CONSISTENT FUTURE MODEL RUNS BEHAVE. FOBERT && .OAX WATCHES/WARNINGS/ADVISORIES... NE...NONE. IA...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 410 AM CDT WED SEP 12 2012 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-122315- MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT- PAGE-KNOX-CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON- STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER- SAUNDERS-DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-SALINE- JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON- 410 AM CDT WED SEP 12 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST IOWA...WEST CENTRAL IOWA...EAST CENTRAL NEBRASKA...NORTHEAST NEBRASKA AND SOUTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS ARE LIKELY THIS MORNING OVER SOUTHEAST NEBRASKA AND SOUTHWEST IOWA IN ADVANCE OF A COLD FRONT MOVING THROUGH THE AREA. ISOLATED THUNDERSTORMS WILL BE POSSIBLE AGAIN THIS EVENING OVER PARTS OF SOUTHEAST NEBRASKA AND SOUTHWEST IOWA AS THE FRONT CONTINUES TO PUSH SLOWLY SOUTH. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A SMALL CHANCE FOR POSSIBLE THUNDERSTORMS MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. FOBERT
The national radar mosaic for the moment the first event began.
1 strong wind. Local standard time, as filed.
North winds of 15 to 30 mph behind a cold front caused serious injury to two people when they fell off the roof of a building after wind caught a long metal sheet they were handling.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nebraska in 2012Every state in 2012This day in weather historyWarnings in Nebraska, September 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: 401259.