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 Bismarck, ND wrote its last area forecast discussion before the first event at May 24, 2:26 PM CST, 1 hour 29 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BISMARCK ND 326 PM CDT WED MAY 24 2006 .SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT... MAIN CONCERNS ARE ENDING OF PRECIPITATION TONIGHT AND EXPIRATION OF WIND ADVISORY. NAM AND GFS SIMILAR...SO USED A BLEND FOR FORECAST. WILL LET WIND ADVISORY EXPIRE AS SCHEDULED...MAY REMOVE A FEW OF THE NORTHERN COUNTIES EARLY. RADAR TRENDS ON THE PRECIPITATION SIMILAR TO MODEL IDEAS. WILL KEEP A CHANCE OF SHOWERS CENTRAL INTO THE EVENING WITH LIKELY POPS EAST PART OF CWA. WILL KEEP A SMALL CHANCE EXTREME EASTERN PORTION OF THE CWA FOR AFTER MIDNIGHT. WILL CONTINUE DRY FORECAST FOR THURSDAY AS UPPER RIDGE MOVES THROUGH. MODEL TREND FOR THE REMAINDER OF THE SHORT TERM IS TO BRING SOUTHWEST FLOW ALOFT ACROSS WESTERN AND CENTRAL NORTH DAKOTA. ASSOCIATED WITH THIS...WILL BE A SLOW MOVING FRONTAL BOUNDARY THAT WILL EXTEND FROM SOUTHWEST TO NORTHEAST ACROSS THE FORECAST AREA. BEST CHANCE FOR SCATTERED THUNDERSTORMS WILL BE ALONG AND NORTH OF THE BOUNDARY. THIS REFLECTED IN THE POPS...TEMPERATURE...DEW POINT AND WIND FORECASTS. WILL KEEP HIGHS IN THE 80S ACROSS THE SOUTHEAST FRIDAY AND SATURDAY WITH MORE 70S IN THE NORTHWEST. .LONG TERM...SUNDAY THROUGH WEDNESDAY... BROAD UPPER LEVEL RIDGE EAST AND AN UPPER LEVEL TROUGH WEST WILL KEEP SOUTHWEST FLOW ALOFT OVER THE NORTHERN PLAINS THROUGH THE EXTENDED WITH PERIODIC SHORT WAVE ENERGY PASSING THROUGH. PERIOD BEGINS WITH A SURFACE LOW PRESSURE SYSTEM MOVING NORTHEAST ALONG THE FLOW ACROSS THE CENTRAL AND EASTERN DAKOTAS SUNDAY...ALONG WITH A POTENT SHORTWAVE JUST TO THE WEST MOVING NORTH THROUGH MONTANA AND INTO SOUTHERN CANADA. MODELS HAVE BEEN FAIRLY CONSISTENT WITH THESE FEATURES SO WILL LEAVE IN CHANCE POPS CENTRAL AND NORTH. DECREASED THE THUNDER POTENTIAL WEST AND CENTRAL TO ISOLATED AS MODELS HAVE BEEN CONSISTENT IN KEEPING THIS AREA STABLE...WHILE THE EASTERN THIRD OF NORTH DAKOTA CONTAINS THE BEST INSTABILITY WITH MOIST SOUTHERLY SURFACE FLOW. NEXT SHORT WAVE WILL AFFECT THE REGION MONDAY...BUT BEST PRECIP CHANCES SHOULD STAY ACROSS SOUTH WITH HIGH PRESSURE NORTH AND WHERE THE BEST LIFT SHOULD BE IN THE PROXIMITY OF LOW PRESSURE. ONLY OTHER CHANGE TO POPS WAS TO LIMIT THE EASTWARD EXTENT OF SLIGHT CHANCE THUNDER TUESDAY WITH STABLE AIR UNDER HIGH PRESSURE EAST. MINIMAL CHANGES TO TEMPERATURES GRIDS WITH NEAR SEASONAL TEMPERATURES EXPECTED. && .BIS WATCHES/WARNINGS/ADVISORIES... WIND ADVISORY SOUTHWEST TIL 01Z. && JF/NH
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BISMARCK ND 517 AM CDT WED MAY 24 2006 NDZ001>005-009>013-022-023-025-036-037-048-051-251030- DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD- MCHENRY-PIERCE-SHERIDAN-WELLS-FOSTER-KIDDER-STUTSMAN-LA MOURE- DICKEY- 517 AM CDT WED MAY 24 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL NORTH DAKOTA...NORTHWEST NORTH DAKOTA...SOUTH CENTRAL NORTH DAKOTA AND SOUTHEAST NORTH DAKOTA. .DAY ONE...TODAY AND TONIGHT WINDY WITH SHOWERS AND THUNDERSTORMS TODAY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. NDZ017>021-031>035-040>047-050-251030- MCKENZIE-DUNN-MERCER-OLIVER-MCLEAN-GOLDEN VALLEY-BILLINGS-STARK- MORTON-BURLEIGH-SLOPE-HETTINGER-GRANT-BOWMAN-ADAMS-SIOUX-EMMONS- LOGAN-MCINTOSH- 517 AM CDT WED MAY 24 2006 /417 AM MDT WED MAY 24 2006/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST NORTH DAKOTA...SOUTH CENTRAL NORTH DAKOTA...SOUTHEAST NORTH DAKOTA AND SOUTHWEST NORTH DAKOTA. .DAY ONE...TODAY AND TONIGHT A WIND ADVISORY IS IN EFFECT UNTIL 8 PM CDT OR 7 PM MDT THIS EVENING FOR NORTHWEST WINDS OF 25 TO 40 MPH WITH SOME HIGHER GUSTS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. JV
The Bismarck radar (KBIS), 131 km away, was scanning. The volume nearest the first event began at 21:57 UTC.
1 flash flood. Local standard time, as filed.
3.95 inches of rain. County roads under 8 inches of water. Culvert washed out.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Dakota in 2006Every state in 2006This day in weather historyWarnings in North Dakota, May 2006
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: 5505216.