Hail, Cass
- When
- June 12, 6:45 PM CST
- Where
- Cass County, Walker
- Measured
- 0.75 in hail
- Reported by
- Trained Spotter
- Coordinates
- 47.100, -94.600
Thunderstorms developed in western Minnesota and moved east through northeastern Minnesota during the evening and into the late night hours. The thunderstorms produced strong winds and some hail.
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 DLH wrote it up.
Thunderstorms developed in western Minnesota and moved east through northeastern Minnesota during the evening and into the late night hours. The thunderstorms produced strong winds and some hail.
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 Jun 12, 1:11 PM CST, 5 hours 34 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DULUTH MN 211 PM CDT THU JUN 12 2008 .DISCUSSION... FULLY OCCLUDED SFC SYSTEM POSITIONED JUST N OF MT/ND/CN BORDER AND MOVG VERY SLOWLY TO THE NE. LOLVL MSTR AND TRIGGER MECHANISM LACKING...BUT -20 500 MB TEMPS AND AFTN HTG IN DRY SLOT WILL RESULT IN RAPID DESTABILIZATION LATE AFTN/EVE...SO SLGT RISK IS RSNBL. CU FIELD ALREADY FORMING. SEE SWODY1 DISC FOR MORE INFO. SOME POPS WILL PERSIST THRU FRI AS UPR LOW SLOWLY SLIDES AWAY. AFT A BRIEF PD OF WEAK RIDGING...SEVERAL OTHER S/WVS SHOOT ACRS BORDER COUNTRY OVR THE WEEKEND...AFFECTING MAINLY THE NRN PART OF OUR CWA. MODELS STILL DEPICT AMPLIFYING UPR LVL RIDGE OVR MIDWEST NXT WEEK. GFS STILL STRONGER WITH THIS RIDGE THAN ECMWF...BUT IDEA IS THE SAME. TIMING OF PRECIP IN RETURN FLOW ON BACK SIDE OF SFC HIGH LATER NXT WEEK A BIT UNCERTAIN. KEPT TUE-THU PD DRY FOR NOW. && .AVIATION... DRY SLOT FROM DEEP SFC LOW OVER SE SASK HAS SWEPT ACROSS WRN 2/3 OF CWA WITH VFR DOMINATING. AREA OF MVFR/IFR ACROSS ERN CWA...INCLUDING HYR...IS ASSOCIATED WITH OCCLUDED FRONT. WITH UPPER LVL WINDS STILL PARALLEL TO THIS FEATURE....EXPECT MVFR/IFR TO CONTINUE INTO THIS EVENING BEFORE ANY IMPROVEMENT OCCURS. WITH COLD AIR ALOFT AND SFC HEATING...MAY SEE SCT RW/TRW THIS AFTERNOON/EVENING ALTHOUGH POPS ARE LOW IN ANY ONE LOCATION. DLH TERMINAL FCST IS TRICKY AS MARINE LAYER MAY TRY TO REDEVELOP/DEEPEN OVER AREA THIS EVENING ONCE MECHANICAL MIXING FROM DAYTIME HEATING DISSIPATES. HAVE INCLUDED TEMPO FOR LIFR AFTER MIDNIGHT. UPPER LOW WILL MOVE TOWARDS REGION TONIGHT. HIGHEST CHANCE FOR MVFR/IFR WILL OCCUR NEAR INL EARLY FRIDAY. && POINT TEMPS/POPS... DLH 48 68 46 67 / 20 20 20 30 INL 48 64 45 65 / 30 40 30 30 BRD 50 68 50 72 / 20 20 10 20 HYR 54 72 48 71 / 20 20 10 20 ASX 52 70 50 69 / 20 20 10 30 && .DLH WATCHES/WARNINGS/ADVISORIES... MN...NONE. WI...NONE. LS...NONE. 04/CANNON
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE DULUTH MN 328 PM CDT THU JUN 12 2008 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-131030- KOOCHICHING-NORTHERN ST. LOUIS-NORTHERN COOK/NORTHERN LAKE- NORTHERN ITASCA-CENTRAL ST. LOUIS-SOUTHERN LAKE/LAKESHORE- SOUTHERN COOK/LAKESHORE-NORTHERN CASS-SOUTHERN ITASCA- SOUTHERN CASS-CROW WING-NORTHERN AITKIN-SOUTHERN AITKIN- CARLTON/SOUTHERN ST. LOUIS-PINE-DOUGLAS-BAYFIELD-ASHLAND-IRON- BURNETT-WASHBURN-SAWYER-PRICE- 328 PM CDT THU JUN 12 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEASTERN MINNESOTA AND NORTHWESTERN WISCONSIN. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED THUNDERSTORMS ARE EXPECTED THIS EVENING AND OVERNIGHT...MAINLY NORTH OF DULUTH. AN ISOLATED SEVERE THUNDERSTORM IS POSSIBLE LATE THIS EVENING. THE MAIN HAZARD WILL BE LARGE HAIL. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THUNDERSTORMS ARE POSSIBLE FRIDAY THROUGH MONDAY. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION MIGHT BE NEEDED THIS EVENING. LSZ121-140>148-131030- BAYFIELD TO OAK POINT WI-GRAND PORTAGE TO GRAND MARAIS MN- GRAND MARAIS TO TACONITE HARBOR MN- TACONITE HARBOR TO SILVER BAY HARBOR MN- SILVER BAY HARBOR TO TWO HARBORS MN-TWO HARBORS TO DULUTH MN- DULUTH MN TO PORT WING WI-PORT WING TO SAND ISLAND WI- SAND ISLAND TO BAYFIELD WI-OAK POINT TO SAXON HARBOR WI- 328 PM CDT THU JUN 12 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS OF WESTERN LAKE SUPERIOR. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED THUNDERSTORMS ARE EXPECTED THIS EVENING AND OVERNIGHT...MAINLY NORTH OF DULUTH. AN ISOLATED SEVERE THUNDERSTORM IS POSSIBLE LATE THIS EVENING. THE MAIN HAZARD WILL BE LARGE HAIL. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THUNDERSTORMS ARE POSSIBLE FRIDAY THROUGH MONDAY. 04
The Duluth radar (KDLH), 184 km away, was scanning. The volume nearest the first event began at 00:46 UTC.
9 thunderstorm wind, 3 hail. Local standard time, as filed.
People were trapped in a campground due to numerous downed trees. Trees were also reported down in the Whitefish and Deerwood areas.
Several trees were blown down.
A few trees were uprooted.
Six very large red pine trees were blown down.
Twenty trees were blown down. A shed was blown over and a greenhouse flattened by the strong winds.
Six trees were blown down across a road, and power outages were reported.
Trees were blown down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2008Every state in 2008This day in weather historyWarnings in Minnesota, June 2008
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: 119970, 119971, 119985, 119972, 119986, 119975, 119977, 119978, 119979, 119980, 119981, 119984.