1 funnel cloud, as filed by the National Weather Service.
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 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 Twin Cities, MN wrote its last area forecast discussion before the first event at Sep 23, 2:35 PM CST, 41 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 335 PM CDT SAT SEP 23 2006 .DISCUSSION... THE DEFORMATION BAND OF SHOWERS ASSOCIATED WITH THE POSITIVELY TILTED UPPER TROUGH ACROSS THE UPPER MISSISSIPPI VALLEY REGION CONTINUES TO SAG SOUTH AND EAST ACROSS THE FORECAST AREA THIS AFTERNOON. THIS AREA OF PRECIPITATION ALSO CORRESPONDS WITH THE NORTHERN/WESTERN EDGE OF THE LOW LEVEL BOUNDARY EVIDENT IN 19Z SURFACE OBSERVATIONS FROM RICE LAKE WISCONSIN TO FAIRMONT. THIS BOUNDARY WILL CONTINUE TO SHIFT SOUTH AND EAST ACROSS THE REMAINDER OF THE CWA THIS EVENING...WITH ORGANIZED SHOWER ACTIVITY FOLLOWING SUIT. WILL CONTINUE MONITORING ACTIVITY ALONG THE MN/WI BORDER...WHERE HIGHER INSTABILITY AND WEAK BOUNDARY COULD TRIGGER BRIEF TOUCHDOWNS. HAVE MAINTAINED CATEGORICAL POPS ACROSS THE SOUTHEASTERN HALF OF THE CWA UNTIL MIDNIGHT...AFTER WHICH NAM/WRF AND GFS MODELS BOTH DEPICT POST-TROUGH SUBSIDENCE AT THE MID/UPPER LEVELS TO SURGE IN. RESIDUAL LOW LEVEL MOISTURE/CLOUD DEBRIS SHOULD KEEP TEMPERATURES ELEVATED OVERNIGHT AGAIN TONIGHT...SO HAVE OPTED TO LEAN TOWARD THE WARMER MAV GUIDANCE. POPS DECREASE BELOW 20 PERCENT ON SUNDAY...ALTHOUGH CAN NOT RULE OUT ISOLATED INSTABILITY SHOWERS IN THE AFTERNOON. TEMPERATURES WILL MODERATE INTO THE UPPER 60S AND LOW 70S DURING THE BEGINNING OF THE UPCOMING WEEK. LONGER TERM...TUESDAY NIGHT THROUGH SATURDAY WARMUP OF TUESDAY GIVES WAY TO COOL AIR BEHIND COLD FRONT WHICH NOW LOOKS TO ENTER THE CWA LATER TUESDAY NIGHT. SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE WITH FROPA LATE TUESDAY AND EARLY WEDNESDAY. UPPER SHORTWAVE DEVELOPS AROUND BASE OF DEEPENING UPPER TROF EXTENDING FROM HUDSON BAY INTO THE NORTHERN PLAINS AND TRAVERSES THE CWA COINCIDENT WITH SFC FRONT. PLENTY OF COLD AIR FILLS IN BEHIND THIS SYSTEM WITH H85 TEMPS TUMBLING FROM +12 TO +14 CELSIUS TUESDAY EVENING DOWN TO 0 TO +2 BY WEDNESDAY NIGHT. A MORE SUBSTANTIAL ALBERTA CLIPPER TYPE TROF DIGS INTO THE CWA WEDNESDAY BRINGING REINFORCING SHOT OF COLD WITH H85 TEMPS DOWN TO -4. UPPER TROF CLOSES OFF OVER LWR MICHIGAN EARLY FRIDAY AND RAPIDLY SHIFTS EASTWARD IN RESPONSE TO 140 KT UPPER JET RIDING OVER TOP OF APPROACHING H5 RIDGE. ONE LAST SHORTWAVE IS DEPICTED IN THE GFS COMING AROUND DEPARTING TROF. PRECIP CHANCES WILL BECOME TRICKY FROM THURSDAY ONWARD GIVEN PERSISTENT CYCLONIC FLOW AND TRAIN OF SHORTWAVES. FEEL THAT BEST CHANCES WILL BE ALONG THE FRONT EARLY WEDNESDAY...THEN AHEAD OF CLIPPER EARLY THURSDAY...THEN ACROSS THE EAST SATURDAY MORNING IN RESPONSE TO FINAL SHORTWAVE AND LEFT EXIT OF APPROACHING UPPER JET. STILL PLENTY OF DETAILS TO BE WORKED OUT...ESPECIALLY WITH TUESDAY NIGHT SYSTEM NOW SLOWING DOWN. && .MPX WATCHES/WARNINGS/ADVISORIES... MN...NONE. WI...NONE. && LS/MDB
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 348 PM CDT SAT SEP 23 2006 MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 241200- DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS- BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON- YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-CARVER-SCOTT-DAKOTA- REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-WATONWAN-BLUE EARTH- WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-POLK-BARRON-RUSK- ST. CROIX-PIERCE-DUNN-PEPIN-EAU CLAIRE- 348 PM CDT SAT SEP 23 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND SOUTH CENTRAL MINNESOTA...AND WEST CENTRAL WISCONSIN. .DAY ONE...THIS AFTERNOON AND TONIGHT THE ATMOSPHERE IS GOING TO CONTINUE TO BE FAVORABLE FOR PRODUCING BRIEF FUNNEL CLOUDS DURING THE NEXT COUPLE OF HOURS IN WASHINGTON...ST. CROIX...PIERCE...AND DUNN COUNTIES. A BRIEF TOUCHDOWN IS ALSO A POSSIBILITY. THE THREAT WILL DIMINISH SIGNIFICANTLY AFTER SUNSET. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED. LS
MNZ063-WIZ023>025-232130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 323 PM CDT SAT SEP 23 2006 ...SIGNIFICANT WEATHER ALERT FOR FUNNEL CLOUDS... WEATHER RADAR CONTINUES TO SHOW SCATTERED WEAK THUNDERSTORMS IN WESTERN WISCONSIN AND THEN INTO WASHINGTON COUNTY, MINNESOTA. THERE WAS A REPORT OF A BRIEF TORNADO TOUCHDOWN 5 MILES WEST OF ROBERTS, WISCONSIN IN ST. CROIX COUNTY AT 234 PM. THERE WAS ALSO A REPORT OF A POSSIBLE FUNNEL CLOUD NEAR THE ST. CROIX RIVER BY HUDSON, WISCONSIN AROUND 3 PM. THE ATMOSPHERE IS GOING TO CONTINUE TO BE FAVORABLE TO PRODUCING BRIEF FUNNEL CLOUDS DURING THE NEXT COUPLE OF HOURS IN THE FOLLOWING COUNTIES...WASHINGTON...ST. CROIX...PIERCE...AND DUNN. A BRIEF TOUCHDOWN IS ALSO A POSSIBILITY. PERSONS SHOULD BE PREPARED TO QUICKLY MOVE TO A PLACE OF SAFETY IN THE EVENT THAT A FUNNEL CLOUD IS SIGHTED.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
339 PM CDT SAT SEP 23 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0234 PM TORNADO 5 W ROBERTS 44.99N 92.65W
09/23/2006 ST. CROIX WI PUBLIC
REPORT WAS RELAYED VIA LAW ENFORCEMENT.
&&
AJZPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
346 PM CDT SAT SEP 23 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0258 PM FUNNEL CLOUD HUDSON 44.97N 92.74W
09/23/2006 ST. CROIX WI LAW ENFORCEMENT
ROTATING WALL CLOUD REPORTED 1 MILE NORTH OF EXIT 2 ON
I-94.
&&
AJZThe Minneapolis radar (KMPX), 58 km away, was scanning. The volume nearest the first event began at 21:14 UTC.
1 funnel cloud. Local standard time, as filed.
Reported by trained spotter and fire department.
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, September 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: 5534402.