1 flash flood, as filed by the National Weather Service.
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 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 May 12, 3:30 AM CST, 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 430 AM CDT THU MAY 12 2005 .DISCUSSION... FORECAST CHALLENGES CONTINUE TO HEAVY RAIN AND SEVERE WEATHER POTENTIAL THROUGH THURSDAY. HEAVY RAIN EVENT HITTING THE HASTINGS/WOOD RIVER/KEARNEY AREA HARD WITH WIDESPREAD FLASH FLOODING. OVER 10 INCHES OF RAINFALL WAS REPORTED AT GRAND ISLAND. LATEST WSR-88D IMAGERY HAS STRONG STORMS FROM TEKAMAH...THROUGH FREMONT...SOUTH TO SEWARD AND FAIRBURY. ONE HR RAINFALL AMOUNTS HAVE BANDS OF 1-2 INCH AMOUNTS WITH POCKETS OF 2-3 INCHES AND MORE GENERAL AREAS OF .75 OR LESS. LOW LEVEL JET INITIALLY STRONG WITH THE LATEST FAIRBURY WIND PROFILER AT 60 KTS IN THE LOWEST GATE FROM THE S. THE MID LEVEL LOW CONTINUES TO LIFT N ACRS THE ROCKIES INTO WRN SD AND SOUTHERN CANADA THROUGH FRIDAY MORNING. THE LOW LEVEL WNDS ARE FORECAST TO DECREASE TOWARD 12Z AND DECREASE FURTHER DURING THE MORNING. TWO AREAS OF STRONG THETA E ADVECTION/UVV THIS AM...AS ONE AREA LIFTS NE TO SD AND THE OTHER IS OVR KS WITH WIDESPREAD PRECIPITATION OVER ERN NEB AND WRN IA. THIS AFTERNOON AND TONIGHT...THERE IS THETA E ADVECTION OVR SE NEB AND SW IA...WITH THE FOCUS OF THE LOW LEVEL JET MORE FROM KANSAS INTO IA. CONTINUED TREND OF POPS...DECREASING IN THE WEST FIRST AND MAINTAINING HIGH POPS SE HALF OF CWA. BOTH THE NAM AND THE GFS ARE INDICATING DEEP LIFT WITH THE RIGHT ENTRANCE REGION OF A STRONG 110KT JET OVER THE FCST AREA TONIGHT. CONTINUED THE FLOOD WATCH AND EXPANDED IT INTO THE OVERNIGHT HOURS. BEST LIFT AND PRECIPITATION SHIFTS TO THE EAST FRIDAY MORNING. LINGER POPS FRIDAY AND TROFS STILL SWINGING THROUGH. DID NOT MAKE ANY SIGNIFICANT CHANGE S TO SAT AND SUN WITH SFC HIGH BUILDING IN AND COOLER TEMPERATURES. THERE ARE SOME RIPPLES IN THE NW AND WEST FLOW...AND LEFT POPS IN LATE MON INTO TUE. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...FLOOD WATCH BURT...BUTLER...CASS...CUMING...DODGE...DOUGLAS... GAGE...JEFFERSON...JOHNSON...LANCASTER...NEMAHA...OTOE... PAWNEE...RICHARDSON...SALINE...SARPY...SAUNDERS...SEWARD... THURSTON...WASHINGTON...WAYNE THROUGH 9AM FRIDAY. IA...FLOOD WATCH FREMONT...HARRISON...MILLS...MONONA...MONTGOMERY... PAGE...POTTAWATTAMIE...SHELBY THROUGH 9AM FRI. && ZAPOTOCNY
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 731 PM CDT WED MAY 11 2005 NEZ030-031-042-043-050-065-078-088-089-121100- BOONE-BUTLER-COLFAX-GAGE-JEFFERSON-MADISON-PLATTE-SALINE-SEWARD- 731 PM CDT WED MAY 11 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN NEBRASKA. .DAY ONE...TONIGHT AND THURSDAY ...SEVERE THUNDERSTORM WATCH #252 IN EFFECT UNTIL MIDNIGHT... OCCASIONAL THUNDERSTORMS CAN BE EXPECTED THIS EVENING JUST NORTH OF A STALLED OUT FRONTAL BOUNDARY NEAR THE NEBRASKA...KANSAS BORDER. A FEW OF THESE EVENING STORMS MAY BECOME SEVERE AND BE ACCOMPANIED BY LARGE HAIL AND DAMAGING WINDS. THE THREAT FOR SEVERE WEATHER WILL PROBABLY CONTINUE THROUGH THE MAJORITY OF THE OVERNIGHT HOURS AS THE LOW LEVEL JET INCREASES AND INDUCES ADDITIONAL THUNDERSTORMS. THE CHANCE FOR THUNDERSTORMS WILL CONTINUE ON THURSDAY. .DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH TUESDAY THUNDERSTORMS ARE STILL POSSIBLE ON THURSDAY NIGHT AND FRIDAY. STORMS DURING THIS TIME FRAME THOUGH SHOULD REMAIN BELOW SEVERE CRITERIA. MORE STORMS ARE POSSIBLE NEXT MONDAY NIGHT AND TUESDAY. .SPOTTER INFORMATION STATEMENT STORM SPOTTER ACTIVATION WILL PROBABLY BE REQUIRED THIS EVENING. IAZ043-055-056-069-079-080-090-091-NEZ015-018-033-034-045-121100- BURT-CUMING-FREMONT IA-HARRISON IA-MILLS IA-MONONA IA-MONTGOMERY IA- PAGE IA-POTTAWATTAMIE IA-SHELBY IA-THURSTON-WASHINGTON-WAYNE- 731 PM CDT WED MAY 11 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST NEBRASKA AND SOUTHWEST IOWA. .DAY ONE...TONIGHT AND THURSDAY A FLOOD WATCH REMAINS IN EFFECT UNTIL 9 AM THURSDAY. OCCASIONAL THUNDERSTORMS ARE LIKELY TONIGHT. SOME STORMS MAY BE ACCOMPANIED BY SMALL HAIL AND HEAVY RAINFALL...PARTICULARLY THIS EVENING THIS EVENING. .DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH TUESDAY THUNDERSTORMS ARE EXPECTED TO CONTINUE THROUGH FRIDAY NIGHT. LOCALLY HEAVY RAIN WILL BE THE PRIMARY SEVERE WEATHER THREAT. MORE STORMS ARE POSSIBLE NEXT MONDAY NIGHT AND TUESDAY. .SPOTTER INFORMATION STATEMENT STORM SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT OR THURSDAY. NEZ011-012-016-017-032-044-051>053-066>068-121100- ANTELOPE-CASS-CEDAR-DODGE-DOUGLAS-KNOX-LANCASTER-OTOE-PIERCE-SARPY- SAUNDERS-STANTON- 731 PM CDT WED MAY 11 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN NEBRASKA. .DAY ONE...TONIGHT AND THURSDAY OCCASIONAL STRONG THUNDERSTORMS ARE ANTICIPATED THIS EVENING GENERALLY NORTH OF A STALLED OUT FRONTAL BOUNDARY NEAR THE NEBRASKA...KANSAS BORDER. THERE IS THE POTENTIAL FOR SOME OF THESE STORMS TO BE ACCOMPANIED BY SMALL HAIL...GUSTY WINDS...AND HEAVY RAIN. SCATTERED THUNDERSTORM ACTIVITY IS EXPECTED TO CONTINUE THROUGH THE MAJORITY OF THE OVERNIGHT HOURS AS THE LOW LEVEL JET INCREASES AND INDUCES ADDITIONAL STORMS. THE CHANCE FOR THUNDERSTORMS WILL CONTINUE ON THURSDAY. .DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH TUESDAY THUNDERSTORMS ARE STILL POSSIBLE ON THURSDAY NIGHT AND FRIDAY. STORMS DURING THIS TIME FRAME THOUGH SHOULD REMAIN BELOW SEVERE CRITERIA. MORE STORMS ARE POSSIBLE NEXT MONDAY NIGHT AND TUESDAY. .SPOTTER INFORMATION STATEMENT STORM SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING IF STORMS BEGIN TO REACH SEVERE CRITERIA. NEZ090>093-121100- JOHNSON-NEMAHA-PAWNEE-RICHARDSON- 731 PM CDT WED MAY 11 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN NEBRASKA. .DAY ONE...TONIGHT AND THURSDAY ...SEVERE THUNDERSTORM WATCH #254 IN EFFECT UNTIL 2 AM THURSDAY... OCCASIONAL THUNDERSTORMS CAN BE EXPECTED THIS EVENING JUST NORTH OF A STALLED OUT FRONTAL BOUNDARY NEAR THE NEBRASKA...KANSAS BORDER. A FEW OF THESE EVENING STORMS MAY BECOME SEVERE AND BE ACCOMPANIED BY LARGE HAIL AND DAMAGING WINDS. THE THREAT FOR SEVERE WEATHER WILL PROBABLY CONTINUE THROUGH THE MAJORITY OF THE OVERNIGHT HOURS AS THE LOW LEVEL JET INCREASES AND INDUCES ADDITIONAL THUNDERSTORMS. THE CHANCE FOR THUNDERSTORMS WILL CONTINUE ON THURSDAY. .DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH TUESDAY THUNDERSTORMS ARE STILL POSSIBLE ON THURSDAY NIGHT AND FRIDAY. STORMS DURING THIS TIME FRAME THOUGH SHOULD REMAIN BELOW SEVERE CRITERIA. MORE STORMS ARE POSSIBLE NEXT MONDAY NIGHT AND TUESDAY. .SPOTTER INFORMATION STATEMENT STORM SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING IF STORMS BEGIN TO REACH SEVERE CRITERIA. DEE
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1129 PM CDT WED MAY 11 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1110 PM NON-TSTM WND DMG 4 N ALBION 41.75N 98.00W
05/11/2005 BOONE NE EMERGENCY MNGR
CATTLE SHED DESTROYED.
&&
SKPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1133 PM CDT WED MAY 11 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1110 PM NON-TSTM WND DMG 5 W ALBION 41.69N 98.10W
05/11/2005 BOONE NE EMERGENCY MNGR
30X30 SHED BLOWN APART AND ONTO HIGHWAY
&&
SKPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1142 PM CDT WED MAY 11 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1138 PM TSTM WND GST UTICA 40.90N 97.35W
05/11/2005 88 MPH SEWARD NE TRAINED SPOTTER
SHED BLOWN AWAY
&&
SKSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
1154 PM CDT WED MAY 11 2005
NEZ030-031-042>045-050>053-065>068-078-088>093-121000-
...SEVERE THUNDERSTORM WATCH 256 HAS BEEN ISSUED UNTIL 5 AM CDT...
IN NORTHEAST NEBRASKA
MADISON...BOONE...COLFAX AND PLATTE
IN EAST CENTRAL NEBRASKA
DODGE...WASHINGTON...BUTLER...SAUNDERS...DOUGLAS AND SARPY
IN SOUTHEAST NEBRASKA
CASS...SEWARD...LANCASTER...OTOE...SALINE...NEMAHA...GAGE...
JOHNSON...JEFFERSON...RICHARDSON AND PAWNEE
DEWALDSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
410 AM CDT THU MAY 12 2005
NEZ030-031-042>045-050>053-065>068-078-088>093-121115-
BOONE-BUTLER-CASS-COLFAX-DODGE-DOUGLAS-GAGE-JEFFERSON-JOHNSON-
LANCASTER-MADISON-NEMAHA-OTOE-PAWNEE-PLATTE-RICHARDSON-SALINE-SARPY-
SAUNDERS-SEWARD-WASHINGTON-
INCLUDING THE CITIES OF...ALBION...AUBURN...BEATRICE...BELLEVUE...
BLAIR...CLARKSON...COLUMBUS...CRETE...DAVID CITY...FAIRBURY...
FALLS CITY...FREMONT...LINCOLN...LOUISVILLE...NEBRASKA CITY...
NORFOLK...OMAHA...PAWNEE CITY...SEWARD...TECUMSEH...WAHOO
410 AM CDT THU MAY 12 2005
...SEVERE THUNDERSTORM WATCH 256 HAS BEEN CANCELLED...
SEVERE THUNDERSTORM WATCH NUMBER 256 WHICH WAS IN EFFECT FOR PORTIONS
OF EASTERN NEBRASKA HAS BEEN CANCELLED SINCE THE THREAT OF WIDESPREAD
SEVERE WEATHER HAS DECREASED.
IN NORTHEAST NEBRASKA
MADISON...BOONE...COLFAX AND PLATTE
IN EAST CENTRAL NEBRASKA
DODGE...WASHINGTON...BUTLER...SAUNDERS...DOUGLAS AND SARPY
IN SOUTHEAST NEBRASKA
CASS...SEWARD...LANCASTER...OTOE...SALINE...NEMAHA...GAGE...
JOHNSON...JEFFERSON...RICHARDSON AND PAWNEE
AGAIN...THE WATCH WHICH WAS IN EFFECT UNTIL 5 AM CDT HAS BEEN
CANCELLED.
DEEThe Omaha radar (KOAX), 82 km away, was scanning. The volume nearest the first event began at 10:01 UTC.
1 flash flood. Local standard time, as filed.
Heavy rain flooded several county roads along Lincoln Creek and other tributaries of the Big Blue River. Rainfall of 3 to 4 inches likely fell over much of the county this night.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nebraska in 2005Every state in 2005This day in weather historyWarnings in Nebraska, May 2005
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: 5449581.