A line of severe thunderstorms developed across northwest Minnesota during the afternoon of Thursday July 22nd. These storms moved southeast into central Minnesota by the evening.
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 episode as NWS MPX wrote it up.
A line of severe thunderstorms developed across northwest Minnesota during the afternoon of Thursday July 22nd. These storms moved southeast into central Minnesota by the evening. One of the storms produce a brief tornado west of Alexandria.
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 Jul 22, 1:45 PM CST, 5 hours 20 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 245 PM CDT THU JUL 22 2010 .DISCUSSION... MCV ASSOCIATED WITH TSTMS LAST NIGHT AND THIS MORNING IS NOW MOVING ACROSS CENTRAL WISCONSIN. BOUNDARY ON VISIBLE SATELLITE IMAGERY EXTENDS FROM MCV IN WIS THEN ACROSS N IA TO TO BETWEEN OMA AND SUX. CUMULUS CONTINUES TO ENHANCE ALONG THIS BOUNDARY AND EXPECT THAT THIS WILL CONTINUE TO EVOLVE REMAINDER OF THE AFTN WITH AIRMASS BECOMING QUITE UNSTABLE SOUTH OF BOUNDARY WHERE THERE HAS BEEN STRONG HEATING. NORTH OF THE BOUNDARY ACRS WC WI INTO EC MN EASTERLY FLOW HAS PUT MAJOR DAMPER ON TEMPERATURES WITH FLOW OUT OF RAIN COOLED AIR. UPDATED GRIDS EARLIER TO LOWER MAX TEMPERATURES. CANCELLED FFA FOR SC MN AGAIN EXPECTING THAT MAIN RAIN EVENT THIS EVENING WILL REMAIN JUST TO OUR SOUTH. WV IMAGERY DOES CONTINUE TO SHOW PLUME OF MOISTURE FROM SW U.S. INTO MN/N IA. MAINTAINED CHC POPS IN SC MN THIS EVENING TO ACCOUNT FOR ANY TSTMS WHICH MAY DEVELOP FARTHER N IN PLUME. HOWEVER...850 MB JET AND ASSOC MOISTURE TRANSPORT SHUD CARRY SIGNIFICANT RAIN ACROSS IA INTO S WI AND N IL. ALSO HAVE CHC POPS MAINLY FOR EVE IN NW CWA WHICH MAY GET CLIPPED BY SHORTWAVE LIFTING OUT OF NODAK INTO CANADA. LOWERED MIN TEMPS IN MOST AREAS FOR TONIGHT WITH MAX TEMPERATURES SIGNIFICANTLY IMPACTED BY CLOUDS AND PCPN DRNG DAY. ALSO MAINTAINED PTCHY FOG FOR WC MN WHERE CLOUDS SHUD THIN LATER TONIGHT AND WINDS SLACKEN AS HIGH PRESSURE RIDGING MOVES IN. CONCERN FOR HEAVY RAINS AGAIN FRIDAY NIGHT AS SHORTWAVE DIVES OUT OF SE BC CARVING OUT TROF WHICH MOVES FAIRLY RAPIDLY THRU AREA. PWATS INCREASE AGAIN AHEAD OF TROUGH TO THE 1.75 TO 2 INCH RANGE. UNCERTAIN AS TO PATH OF HEAVIEST QPF WITH NAM/GFS FAVORING S MN AND ECMWF. HIGH PRESSURE AND NW FLOW BUILDS IN BEHIND THIS FEATURE BRINGING IN A PERIOD OF DRY WEATHER UNTIL ABOUT TUESDAY NIGHT. && .AVIATION.../18Z TAF ISSUANCE/ MAIN AVIATION CONCERNS IN THE FIRST 6 HRS DEALS WITH LOW CLDS AND POSSIBLE CBS IN AXN AREA...WITH LINGERING SHRA AT RNH/EAU. AS OF 17Z...WEAK CIRCULATION IN SE MN HAS KEPT WEAK E/NE FLOW ACROSS MSP/RNH/EAU FOR MOST OF THE MORNING WHICH WILL LIKELY CONTINUE AS THIS WEAK CIRCULATION SLOWLY MOVES EASTWARD ACROSS WESTERN WISCONSIN THIS AFTN. VWP ACROSS THE REGION IS ALSO SHOWING THIS CIRCULATION WITH WNDS GENERALLY VEERING TO THE SE/S ACROSS THE SOUTHWESTERN HALF OF FA. THIS WILL BE PROBLEMATIC IN TERMS OF LOW LEVEL MOISTURE FROM RETREATING MCS ACROSS WESTERN WISCONSIN. THEREFORE...WILL CONTINUE MVFR CEILINGS AT MOST OF THE TAF SITES...ESPECIALLY FOR RNH/EAU/MSP DUE TO LOWER LCLS AND CLOSER TO THE DEEPER MOISTURE FROM THE MCS. THERE REMAINS A LOW PROBABILITY OF VFR CEILINGS...SO HAVE INTRODUCE THIS SCENARIO FOR MSP. AFT 00Z...THE FORECAST CONCERNS TURN TO BR/FG OVERNIGHT ALONG WITH LIFR CEILINGS TOWARD DAWN. EVENTUALLY W/NW DRIER AIR WILL FILTER ACROSS THE FA BY LATE TONIGHT/FRIDAY MORNING. HOWEVER...IN THE SHORT TERM...WEAK FLOW AT LOW LEVELS AND THE CONTINUED VERY HIGH WATER CONTENT NEAR THE SFC...HAVE CONTINUED THE PROBABILITY OF THESE LOWER CEILINGS/VSBY DURING THE 09-14Z TIME FRAME. LATER SHIFTS CAN UPDATE TO TEMPORARY PERIOD OR PREDOMINATE IF CONDITIONS WARRANT. MSP...WNDS WILL BE GENERALLY FROM THE E/NE FOR THE NEXT 3-6 HRS WITH WNDS BECOMING MORE SE/S BY THIS EVENING. CEILINGS SHOULD REMAIN MVFR THRU 00Z...WITH A TEMPORARY PERIOD OF LOW VFR ARND 4000 FT LATER THIS AFTN. NOT TOO CONFIDENT ON LIFR/IFR CEILINGS/VSBY TOWARD FRIDAY MORNING. HOWEVER...THERE REMAINS ENOUGH UNCERTAINTY FOR CONTINUING A CHC OF THIS DEVELOPMENT. AGAIN...LATER SHIFTS CAN UPDATE DEPENDING UPON CONDITIONS. WNDS WILL BECOME W/NW BY FRIDAY MORNING AS DRIER AIR BEGINS TO FILTER IN. RAINFALL CHC WILL HOLD OFF UNTIL LATE FRIDAY EVENING FOR THE NEXT EVENT. ..JLT.. && .MPX WATCHES/WARNINGS/ADVISORIES... MN...NONE. WI...NONE. && BAP/JLT
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 529 PM CDT THU JUL 22 2010 MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 231745- 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- 529 PM CDT THU JUL 22 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND SOUTHERN MINNESOTA...AND WEST CENTRAL WISCONSIN. THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND SOUTHERN MINNESOTA...AND WEST CENTRAL WISCONSIN. .DAY ONE...TONIGHT SCATTERED NON-SEVERE THUNDERSTORMS WILL OCCUR ACROSS WEST CENTRAL MINNESOTA...AND INTO PORTIONS OF CENTRAL MINNESOTA TONIGHT. GUSTY WINDS...HAIL AND HEAVY RAIN WILL ACCOMPANY THE STRONGEST STORMS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHERN AND WEST CENTRAL MINNESOTA FOR MAINLY FRIDAY EVENING AS A STRONG UPPER LEVEL LOW PRESSURE APPROACHES THE AREA. THERE IS ANOTHER CHANCE OF THUNDERSTORMS ON SATURDAY AND AGAIN THE MIDDLE OF NEXT WEEK .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 805 PM CDT THU JUL 22 2010 MNZ041-042-048-049-230145- DOUGLAS-POPE-STEARNS-TODD- 805 PM CDT THU JUL 22 2010 ...THUNDERSTORMS MOVING INTO/DEVELOPING OVER DOUGLAS...POPE...STEARNS AND TODD COUNTIES THROUGH 845 PM CDT... AT 804 PM CDT...WEATHER SERVICE RADAR WAS TRACKING A STRONG THUNDERSTORM 3 MILES SOUTHWEST OF GARFIELD. THIS STORM WAS MOVING EAST AT 25 MPH. HAIL UP TO DIME SIZE...WINDS UP TO 40 MPH...AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... GARFIELD. ALEXANDRIA. FORADA. NELSON. OSAKIS. LAT...LON 4593 9496 4569 9505 4585 9572 4603 9565 TIME...MOT...LOC 0105Z 285DEG 22KT 4591 9553
The Minneapolis radar (KMPX), 197 km away, was scanning. The volume nearest the first event began at 01:04 UTC.
1 tornado. Local standard time, as filed.
A barn, three sheds, two grain bins, and a rabbit hutch were destroyed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2010Every state in 2010This day in weather historyThe tornado archive for Minnesota, 2010Warnings in Minnesota, July 2010
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: 246804.