4 hail, 1 thunderstorm wind, 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 Grand Forks, ND wrote its last area forecast discussion before the first event at Jul 13, 1:24 PM CST, 1 hour 41 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND FORKS ND 224 PM CDT THU JUL 13 2006 .SHORT TERM... MAIN CHALLENGE INITIALLY WILL BE SEVERE POTENTIAL FOR THE REST OF THIS AFTERNOON/EVENING...THEN HOW WARM WE WILL GET THROUGH THE FORECAST. NAM ONCE AGAIN DID A GOOD JOB WITH LOW LEVEL MOISTURE FIELDS AND INITIALIZING SHORTWAVE TROUGHS...SO WILL FOLLOW. FOR TONIGHT...SHORTWAVE TROUGH ALONG WITH MODERATE TO STRONG INSTABILITY (ML CAPES 2000-2500J/KG) AND DECENT SHEAR (0-6KM BULK 30-35KT) SHOULD YIELD SOME SEVERE STORMS. THERE ARE ALSO OUTFLOW BOUNDARIES AROUND FROM THIS MORNINGS ELEVATED CONVECTION WHICH SHOULD ALSO FOCUS SOME MESOSCALE LIFT. AREAS THAT CAN HEAT OUT INTO THE LOW 90S...MAINLY IN THE SOUTH AND EAST SHOULD HAVE BETTER POTENTIAL FOR SFC BASED/SEVERE CONVECTION. SHEAR PARAMETERS ACTUALLY WEAKEN AS WE HEAD TOWARDS THE EVENING...SO SOME SUPERCELLS POSSIBLE INITIALLY WITH TRANSITION TOWARDS MORE MULTICELL STORMS AND POSSIBLE MCS MOVING INTO MN THIS EVENING WITH MAIN SHORTWAVE. FOR FRIDAY THROUGH SUNDAY...A WARMING TREND WILL DEVELOP WITH HIGHS BY SATURDAY TOPPING 100 DEGREES IN ALL BUT FAR NORTHERN/EASTERN AREAS. SATURDAY SYNOPTIC SETUP IS SIMILAR TO AUGUST 7 1983...WHEN GFK HIT 104 AND FARGO HIT 100. 700MB TEMPS RISE ABOVE +15C ON SAT/SUNDAY...AND 850MB TEMPS APPROACH 30C...SO ANY THUNDER POTENTIAL SHOULD BE WELL CAPPED EVEN WITH A SFC TROUGH MOVING THROUGH SAT INTO SUNDAY. TEMPS ON SUNDAY COULD ALSO BE VERY WARM...AND HAVE TRENDED THEM UP INTO THE LOW 90S NORTH TO UPPER 90S SOUTH. .FIRE WEATHER... IF WINDS BECOME STRONG ENOUGH ON SATURDAY...AND DEWPOINTS DROP IN TO THE 50S...EXTREME FIRE WEATHER CONDITIONS ARE POSSIBLE. WE WILL NEED TO MONITOR THIS POTENTIAL THROUGH THE WEEKEND WITH VERY WARM TEMPS AND LOW HUMIDITY VALUES. .LONG TERM...(MON THROUGH THU)...LONG RANGE MODELS REMAIN SIMILAR...BUT STILL HAVE SOME TIMING DIFFERENCES. THE 500MB TROF MOVES THROUGH THE RIDGE SUN NIGHT AND MON...BUT WITH 700MB TEMPS QUITE WARM...WILL KEEP THE FORECAST DRY AT THIS TIME. THEN...500MB RIDGE REBUILDS OVER AREA...WITH CONTINUED HOT AND DRY CONDITIONS PREVAILING FOR THE EXTENDED. ALL IN ALL...EXPECT ABOVE NORMAL TEMPERATURES TO CONTINUE. && .FGF WATCHES/WARNINGS/ADVISORIES... ND...NONE. MN...NONE. && DK/NG
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND FORKS ND 521 AM CDT THU JUL 13 2006 MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-141030- WEST POLK-NORMAN-CLAY-KITTSON-ROSEAU-LAKE OF THE WOODS- WEST MARSHALL-EAST MARSHALL-NORTH BELTRAMI-PENNINGTON-RED LAKE- EAST POLK-NORTH CLEARWATER-SOUTH BELTRAMI-MAHNOMEN- SOUTH CLEARWATER-HUBBARD-WEST BECKER-EAST BECKER-WILKIN- WEST OTTER TAIL-EAST OTTER TAIL-WADENA-GRANT-TOWNER-CAVALIER- PEMBINA-BENSON-RAMSEY-EASTERN WALSH COUNTY-EDDY-NELSON- GRAND FORKS-GRIGGS-STEELE-TRAILL-BARNES-CASS-RANSOM-SARGENT- RICHLAND-WESTERN WALSH COUNTY- 521 AM CDT THU JUL 13 2006 ...SCATTERED SEVERE THUNDERSTORMS TODAY AND EARLY THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN NORTH DAKOTA...WEST CENTRAL AND NORTHWEST MINNESOTA. .DAY ONE...TODAY AND TONIGHT ISOLATED SEVERE THUNDERSTORMS WILL OCCUR THIS MORNING OVER PARTS OF EASTERN NORTH DAKOTA....WEST OF A VALLEY CITY TO GRAND FORKS TO HALLOCK LINE. FOR THIS AFTERNOON AND EARLY EVENING...THE THREAT FOR SEVERE THUNDERSTORMS WILL INCREASE WITH THE BEST CHANCE OVER THE RED RIVER VALLEY EAST THROUGH NORTHWEST AND WEST CENTRAL MINNESOTA. THE THREAT FOR SEVERE WEATHER SHOULD END AFTER 9 PM TONIGHT. A SURFACE TROUGH OF LOW PRESSURE OVER CENTRAL NORTH DAKOTA WILL MOVE EAST INTO THE RED RIVER VALLEY BY MID AFTERNOON AND INTO MINNESOTA BY EARLY EVENING. MOISTURE AND WARM SURFACE TEMPERATURES ALONG WITH COOLER AIR INVADING AT THE MID LEVELS OF THE ATMOSPHERE WILL RESULT IN UNSTABLE CONDITIONS. HAIL TO GOLF BALL SIZE AND WIND GUSTS TO 80 MPH WILL BE THE MAIN THREAT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED. RIDDLE
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
1028 AM CDT THU JUL 13 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0530 AM TSTM WND DMG 7 S MADDOCK 47.86N 99.53W
07/13/2006 BENSON ND PUBLIC
9 INCH APPLE TREE BLOWN DOWN
&&
PATRIAYDThe Duluth radar (KDLH), 195 km away, was scanning. The volume nearest the first event began at 21:05 UTC.
4 hail, 1 thunderstorm wind. Local standard time, as filed.
A few birch trees were blown over and several large branches were broken off of evergreens along the east end of Rabideau Lake.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2006Every state in 2006This day in weather historyWarnings in Minnesota, July 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: 5526569, 5526570, 5526571, 5526572, 5526573.