2 hail, 1 lightning, 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 Duluth, MN wrote its last area forecast discussion before the first event at Apr 18, 2:30 AM CST, 2 hours 35 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DULUTH MN 330 AM CDT SUN APR 18 2004 .DISCUSSION...15Z MSAS SFC PRESSURE PLOT PLACE A RIDGE AXIS OVER THE EASTERN DAKOTAS. CYCLONIC FLOW FOUND ACROSS THE FA WITH SOME SCATTERED -SHRA/SHSN OCCURRING. HAVE UPDATED THE GRIDS TO ACCOUNT FOR THE PCPN. -SHSN ARE REDUCING VISIBILITIES BRIEFLY AND SOME LIGHT ACCUMULATIONS ARE BEING FOUND IN GRASSY AREAS PER COOP OBSERVER REPORTS. HAVE ALSO UPDATED THE WINDS...ESPECIALLY ALONG THE NORTH SHORE...WHERE LOCAL TERRAIN AFFECTS WIND SPEEDS. REST OF THE FORECAST IN GOOD SHAPE. UPDATED TEXT FORECAST FORTHCOMING. && .DLH...WATCHES/WARNINGS/ADVISORIES MN...NONE. WI...NONE. GSF
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE DULUTH MN 839 AM CDT SAT APR 17 2004 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-181230- ASHLAND-BAYFIELD-BURNETT-C. ST. LOUIS-CROW WING-DOUGLAS-IRON- KOOCHICHING-N. AITKIN-N. CASS-N. ITASCA-N. LAKE/N. COOK-N. ST. LOUIS- PINE-PRICE-S. AITKIN-S. CASS-S. COOK/LAKESHORE-S. ITASCA- S. LAKE/LAKESHORE-S. ST. LOUIS/CARLTON-SAWYER-WASHBURN- 839 AM CDT SAT APR 17 2004 ...SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT AND TOMORROW... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEASTERN MINNESOTA AND NORTHWESTERN WISCONSIN. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS ARE EXPECTED LATE TONIGHT ACROSS NORTHWEST WISCONSIN AND THERE IS A SLIGHT CHANCE THAT SOME MAY BE SEVERE WITH HAIL GREATER THAN 3/4 INCH OR GUSTY WINDS GREATER THAN 58 MPH...ESPECIALLY OVER PRICE COUNTY AND SOUTHERN PORTIONS OF BURNETT...WASHBURN...AND SAWYER COUNTIES. NORTHEAST WINDS WILL INCREASE LATE TONIGHT ON LAKE SUPERIOR. A SMALL CRAFT ADVISORY MAY BE NEEDED ALONG THE NEARSHORE AREAS OF LAKE SUPERIOR. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS SUNDAY AND SUNDAY NIGHT. THE BEST CHANCE OF SEVERE WEATHER IS SOUTH OF LINE FROM GRAND MARAIS...THROUGH THE IRON RANGE...TO BRAINERD...AND ACROSS ALL OF NORTHWEST WISCONSIN. THE GREATEST THREAT WITH THESE SEVERE STORMS IS LARGE HAIL AND DAMAGING WINDS...HOWEVER ISOLATED TORNADOES MAY DEVELOP ACROSS NORTHWEST WISCONSIN. BRISK NORTHEAST WINDS WILL OCCUR OVER LAKE SUPERIOR SUNDAY AND SUNDAY NIGHT. A SMALL CRAFT ADVISORY MAY BE NEEDED ALONG THE NEARSHORE AREAS OF LAKE SUPERIOR. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION MAY BE NEEDED LATE TONIGHT AND TOMORROW. && MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING URL: HTTP://WWW.CRH.NOAA.GOV/DLH LJT
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
554 AM CDT SUN APR 18 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0220 AM HAIL 4 W HINCKLEY 46.01N 93.02W
04/18/2004 0.75 INCH PINE MN TRAINED SPOTTER
0224 AM HAIL 13 E HINCKLEY 46.01N 92.67W
04/18/2004 1.50 INCH PINE MN TRAINED SPOTTER
0458 AM HAIL LITTLE ROUND LAKE 45.97N 91.37W
04/18/2004 1.00 INCH SAWYER WI AMATEUR RADIO
0510 AM HAIL 10 E HAYWARD 46.01N 91.27W
04/18/2004 0.75 INCH SAWYER WI TRAINED SPOTTER
&&
AWIPSUSRThe Duluth radar (KDLH), 131 km away, was scanning. The volume nearest the first event began at 13:57 UTC.
2 hail, 1 lightning. Local standard time, as filed.
A tree exploded after being struck by lightning in rural Deer River. Debris from the tree broke windows and damaged siding to a home.
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, April 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: 5393634, 5393633, 5393632.