Severe Thunderstorms passed through northwestern Minnesota, producing large hailstones. The largest hailstone out of these storms was 2 inches.
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 FGF wrote it up.
Severe Thunderstorms passed through northwestern Minnesota, producing large hailstones. The largest hailstone out of these storms was 2 inches.
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 Grand Forks, ND wrote its last area forecast discussion before the first event at Jul 9, 5:37 PM CST, 58 minutes earlier.
Area Forecast Discussion National Weather Service Grand Forks ND 637 PM CDT Sun Jul 9 2023 .UPDATE... Issued at 637 PM CDT Sun Jul 9 2023 Once again, more showers and thunderstorms are developing across the area this afternoon. Monitoring the potential for some to possibly be strong/severe, but that chance is on the low side (~10-20%). Forecast remains on track. && .SHORT TERM...(This evening through Monday night) Issued at 310 PM CDT Sun Jul 9 2023 Conditional storm threat still expected for the remainder of the afternoon into the evening, with much of the instability occurring ahead of the forcing/main focus for storm development. Main frontal boundary situated across the southern Manitoba with some showers/embedded storms to the north/east of Winnipeg along and ahead of the front. This boundary will continue to drop south into northern/northeastern portions of the area by early this evening. There may be a limited window for some development along and ahead of the front tapping into the instability and 45-50kt shear to have some strong to potentially severe storms. Otherwise the majority of development expected behind the front with limited instability so expect an area of showers and an embedded storm into mid/late evening in the far northeast. Further south, still have some CU development across the south in the vicinity of WAA aloft. Strongest push of WAA into central ND where CU field more developed and even a few returns on radar near BIS. Additional weak CU development near the ND/SD border in the far south and toward west central MN. Therefore still monitoring the potential for an isolated storm to develop in the far south where instability is greater, yet bulk shear remains more limited. Any storm that does develop has the potential to stay somewhat organized with the potential for marginally severe hail or wind gusts. As the frontal boundary pushes through the forecast area Monday, could still see a few lingering showers early Monday, but diurnal development along the boundary toward mid-day possible across the central/south, with the boundary to have moved through the area by early evening. Little instability to be expected with this activity so expect mainly showers. Dry and cool conditions then expected into Monday night, with 850 temps dropping to around +5C therefore expect chilly for July overnight lows into the 40s across much of the area. .LONG TERM...(Tuesday through Sunday) Issued at 310 PM CDT Sun Jul 9 2023 - Below average temperature pattern expected to begin the week, with temperatures transitioning then moderating toward seasonal into next weekend. - The pattern keeps occasional shower chances in place from Tuesday through next weekend. Slight better chances for showers Tuesday, however actual chances for wetting precipitation (0.1"+) are less than 20%. Thunderstorm chances remain even lower, and the probability for severe weather impacts is very low. Persistent westerly to northwesterly flow pattern aloft expected through the extended range as the main push of warmer air to remain shunted to the south as the forecast area will be dominated by a large upper level trough wobbling across central Canada. A series of weak upper level waves will impact the area in the flow pattern setting up a pesky pattern of occasional showers through the week. Periods of weak instability will suggest potential for some embedded storm chances, however widespread thunderstorm activity chances will be low along with the a very low threat of severe weather through the week. Coldest air aloft in place Monday into Tuesday, with gradual warming aloft through the week. 850 temps climb back into the mid teens celsius Tuesday into and Wednesday and remain in the mid teens through the week. Thermal ridge to build back into the area toward Sunday with 850 temps returning to the upper teens to near 20C. && .AVIATION...(For the 00Z TAFS through 00Z Monday evening) Issued at 637 PM CDT Sun Jul 9 2023 VFR conditions for the period, with a wind shift imminent as a cold front moves south through the area. Winds will remain around 10kts all night, with the exception of in the MN trees (BJI). They will increase to 10-15kts Monday afternoon with gusts up to 25 kts possible. TS and SH remain a threat both this afternoon and Monday afternoon for all TAF sites. && .FGF WATCHES/WARNINGS/ADVISORIES... ND...None. MN...None. && UPDATE...AK SHORT TERM...MJB LONG TERM...MJB AVIATION...AK
Hazardous Weather Outlook National Weather Service Grand Forks ND 529 AM CDT Sun Jul 9 2023 MNZ004>009-013>017-022>024-101030- Kittson-Roseau-Lake Of The Woods-West Marshall-East Marshall- North Beltrami-Pennington-Red Lake-East Polk-North Clearwater- South Beltrami-Mahnomen-South Clearwater-Hubbard- 529 AM CDT Sun Jul 9 2023 This hazardous weather outlook is for portions of west central and northwest Minnesota. .DAY ONE...Today and Tonight Isolated strong to severe thunderstorms are possible late afternoon into the early evening with the best chances North of highway 2 in Minnesota. Main threats are hail up to 1 inch and 60 mph gusts. .DAYS TWO THROUGH SEVEN...Monday through Saturday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required late this afternoon into the evening. MNZ001>003-027>032-040-NDZ006>008-014>016-024-026>030-038-039-049- 052>054-101030- West Polk-Norman-Clay-West Becker-East Becker-Wilkin- West Otter Tail-East Otter Tail-Wadena-Grant-Towner-Cavalier- Pembina-Benson-Ramsey-Eastern Walsh-Eddy-Nelson-Grand Forks- Griggs-Steele-Traill-Barnes-Cass-Ransom-Sargent-Richland- Western Walsh- 529 AM CDT Sun Jul 9 2023 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...Today and Tonight Isolated strong thunderstorms are possible this afternoon. Wind gust up to 50 mph and nickel sized hail are the main threats. .DAYS TWO THROUGH SEVEN...Monday through Saturday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
The Fargo/Grand Forks radar (KMVX), 82 km away, was scanning. The volume nearest the first event began at 00:33 UTC.
10 hail. Local standard time, as filed.
Quarter to Ping-Pong ball sized hail reported by public east of Borup. Time estimated via radar.
Public reports quarter sized hail in Shevlin.
Emergency manager relays report from Public SW of Solway of quarter to half-dollar sized hail.
Public reports hail 9 SW Bemidji with sizes ranging from peas to half-dollar.
Public reports quarter to half-dollar sized hail in Becida.
Quarter sized hail reported by Public 10 S Bemidji.
Broadcast Media relays image of large hail in Pickerel Lake, MN.
Public reports quarter-sized hail via email.
Public relays image of half-dollar sized hail via Facebook.
CO-OP Observer 12 E Detroit Lakes reports half-dollar sized hail.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2023Every state in 2023This day in weather historyWarnings in Minnesota, July 2023
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: 1114629, 1114626, 1114625, 1114623, 1114619, 1114633, 1114618, 1114617, 1114615, 1114614.