1 hail, 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 Twin Cities, MN wrote its last area forecast discussion before the first event at Aug 24, 2:05 PM CST, 4 hours 7 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 305PM CDT TUE AUG 24 2004 .DISCUSSION... A COUPLE OF OPORTUNITES FOR RAIN OVERNIGHT...MAINLY THIS EVENING. FIRST TROUGH...LIFTING INTO SOUTHERN WISCONSIN...WILL LIKELY MISS MOST OF WI CWA THIS EVENING. THEN SURFACE FRONT...MOVING INTO WESTENR MN AT THIS TIEM...COULD STILL GENERATE WIDELY SCATTERED TRSA THIS EVENING...AS ANOTHER SHEARING SHORT WAVE MOVES FROM SOUTHEST NODAK INTO SOUTHERN CANADA. FORCING IS WEAK...AND CURRENT INSTABILITY PARAMETERS INDICATE MODERATE INSTABILITY ALONG FRONT...BUT LOW LEVEL FLOW VERY WEAK. NOTHING INDICATES ANYTHING MORE THAN CHANCE POPS...MAINLY THIS EVENING....THEN EAST OVERNIGHT...IF SOMETHING DEVELOPS AND CONTINUES AFTER DARK. WEATHER TRENDS MORE UNCERTAIN...AS MODELS DIVERGE ON MOVEMENT OF SURFACE FRONT...AND FAST SOUTHWEST FLOW ALOFT. ETA LIFTS SHORTWAVE OVER THE CWA DURING THE DAY WEDNESDAY...WITH GFS HOLDING OFF UNTIL WEDN NIGHT AND THURSDAY...AS MAIN UPPER JET/TROUGH MOVES THROUGH. WILL CONTINUE WITH CHANCE POPS...MAINLY FOR THE AFTERNOON WEDNESDAY. THEN WILL GO HIGHER POPS FOR THURSDAY NIGHT...AS BOTH MODELS BRING THE TROUGH/FRONT THROUGH THEN. FRONT DRIVEN FAR SOUTH INTO FRIDAY...WITH SOME WEAK BAROCLINICITY LINGERING ALONG THE SOUTHERN BORDER FRIDAY. WILL MENTION SLIGHT CHANCE POPS AS RIGHT ENTRANCE REGION OF UPPER JET/EXITING TROUGH MOVEE THROUGH. MID LEVEL MOISTURE IDICATED...AND NO INSTABILITY. TEMEPRATURES SHOULD BE IN THE 80-85 DEGREE RANGE NEXT COUPLE DAYS...AHEAD OF FORNT. THEN COOING/DRYING BACK INTO THE 70S FRIDAY AND SATURDAY. LONGTERM OUTLOOK...FRIDAY NIGHT THROUGH WEDNESDAY MORNING PREFERRED THE DGEX MODEL SOLUTION. THE PAST FEW MODEL RUNS THE GFS HAS COME MORE INLINE WITH THE PREVIOUS AND CURRENT DGEX SOLUTIONS. SO HAVE CURTAIL POPS FRIDAY NIGHT INTO SATURDAY MORNING AND WENT ALONG WITH BEST CHANCE OF PRECIP OVER THE SOUTHEAST HALF OF OUR CWA DURING THE PERIOD....MAINLY WITH THE NEXT SHORTWAVE ENERGY MOVING OVER SOUTHEAST PORTION OF CWA LATE SATURDAY AFTERNOON AND EVENING. NEGATIVE TILTED LONGWAVE TROUGH...THAT HAS LINGER OVER MUCH OF THE NATION MIDSECTION THE PAST FEW DAYS AND INTO THE EARLY PART OF THE WEEKEND...WL SLOWLY LIFT NORTHEAST OVR THE EASTERN GREAT LAKES BY DAY 5. PROGGED UPPER FLOW PATTERN THEN BECOMES MORE ZONAL BY DAY 6 WITH A MINOR PERTURBATION IN THE FLOW INDICATED BY WEDNESDAY MORNING. && MPX WATCHES/WARNINGS/ADVISORIES... MN...NONE. WI...NONE. && DE/JVM
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 550 AM CDT TUE AUG 24 2004 MNZ041>044-047>051-054>070-073>078-082>085-091>093-241800- ANOKA-BENTON-BLUE EARTH-BROWN-CARVER-CHIPPEWA-DAKOTA-DOUGLAS- FARIBAULT-FREEBORN-GOODHUE-HENNEPIN-KANDIYOHI-LAC QUI PARLE-LE SUEUR- MARTIN-MCLEOD-MEEKER-MILLE LACS-MORRISON-NICOLLET-POPE-RAMSEY- REDWOOD-RENVILLE-RICE-SCOTT-SHERBURNE-SIBLEY-STEARNS-STEELE-STEVENS- SWIFT-TODD-WASECA-WASHINGTON-WATONWAN-WRIGHT-YELLOW MEDICINE- 550 AM CDT TUE AUG 24 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR MUCH OF CENTRAL AND SOUTHERN MINNESOTA. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS THIS MORNING WILL BECOME SOMEWHAT MORE NUMEROUS THIS AFTERNOON AND EVENING ACROSS A GOOD SHARE OF CENTRAL AND SOUTHERN MINNESOTA. THERE IS A SMALL CHANCE THAT SOME OF THE STORMS COULD PRODUCE LARGE HAIL OR DAMAGING WIND. HEAVY RAIN IS ALSO A POSSIBILITY. A BETTER CHANCE OF SEVERE WEATHER EXISTS TONIGHT... WHEN SEVERE STORMS ARE ANTICIPATED TO MOVE INTO MINNESOTA FROM THE DAKOTAS. IF THIS SCENARIO UNFOLDS FOR TONIGHT...DAMAGING WIND WOULD BE THE MAIN HAZARD. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SCATTERED THUNDERSTORMS ARE EXPECTED WEDNESDAY AND THURSDAY... WITH SEVERE WEATHER ONCE AGAIN A POSSIBILITY. THE BEST CHANCE OF SEVERE WEATHER WOULD BE WEDNESDAY NIGHT AND THEN AGAIN THURSDAY AFTERNOON OR EVENING. HEAVY RAINS MIGHT ALSO OCCUR. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION MAY BE NEEDED TODAY OR TONIGHT. MNZ045-052-053-WIZ014>016-023>028-241800- BARRON-CHIPPEWA-CHISAGO-DUNN-EAU CLAIRE-ISANTI-KANABEC-PEPIN-PIERCE- POLK-RUSK-ST CROIX- 550 AM CDT TUE AUG 24 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL MINNESOTA INTO WEST CENTRAL WISCONSIN. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS THIS MORNING WILL BECOME SOMEWHAT MORE NUMEROUS THIS AFTERNOON AND EVENING FROM EAST CENTRAL MINNESOTA INTO WEST CENTRAL WISCONSIN. THERE IS A SMALL CHANCE THAT SOME OF THE STORMS COULD PRODUCE LARGE HAIL OR DAMAGING WIND. HEAVY RAIN IS ALSO A POSSIBILITY. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SCATTERED THUNDERSTORMS ARE EXPECTED WEDNESDAY AND THURSDAY... BUT SEVERE WEATHER IS MORE LIKELY ON THURSDAY AFTERNOON OR EVENING. DAMAGING WIND WILL BE THE MAIN HAZARD. HEAVY RAINS MIGHT ALSO OCCUR. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION MAY BE NEEDED TODAY OR TONIGHT. TDK
The Minneapolis radar (KMPX), 135 km away, was scanning. The volume nearest the first event began at 00:13 UTC.
1 hail. Local standard time, as filed.
Golf ball sized hail shredded over 1000 acres of soybean and corn crops in St. Johns Township southwest of Pennock. Two homes in the area suffered broken windows and damage to shingles and siding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2004Every state in 2004This day in weather historyWarnings in Minnesota, August 2004
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: 5418730.