Hail, Morton
- When
- June 28, 6:42 PM CST to 6:45 PM CST
- Where
- Morton County, 7.66 mi N of New Salem
- Measured
- 1.5 in hail
- Reported by
- Trained Spotter
- Coordinates
- 46.960, -101.440
Surface low pressure tracked across the Northern Plains, leading to moisture advection and isolated severe thunderstorms across central North Dakota. Supercells developed during the evening hours, continuing until the late 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 BIS wrote it up.
Surface low pressure tracked across the Northern Plains, leading to moisture advection and isolated severe thunderstorms across central North Dakota. Supercells developed during the evening hours, continuing until the late evening. The strongest wind gust report was near Minot Air Force Base in Ward County, where a trained spotter reported wind gusts of 60 to 70 mph. The largest hail occurred in McHenry County, with hail of 2 inches in diameter observed near Velva and Drake. A tornado was observed approximately 4 miles east-southeast of Riverdale in McLean County around 9 PM CDT. There was no known damage from this tornado, therefore there is no estimated wind speed and it is assigned a rating of EF-Unknown per NWS policy.
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 Bismarck, ND wrote its last area forecast discussion before the first event at Jun 28, 6:20 PM CST, 22 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Bismarck ND 720 PM CDT Sun Jun 28 2026 .KEY MESSAGES... - Another round of isolated to scattered severe thunderstorms is possible this evening through Monday. Main hazards will be hail up to 2 inches in diameter and wind gusts up to 70 mph. An isolated tornado is possible. - After a subtle cool down to start the week, above average temperatures are favored starting the middle of this week, potentially warming to well above average heading into the Fourth of July holiday weekend. && .UPDATE... Issued at 720 PM CDT Sun Jun 28 2026 Pulsey thunderstorms have begun to develop across portions of northwestern and south central North Dakota at the time of this early evening update. While a fairly robust convective environment is found across western and central North Dakota, with mesoanalysis revealing around 2000-3000 J/KG MUCAPE and 0-6KM shear around 45 to 60 knots, the lack of even a moderate forcing across the area has so far kept storms fairly pulsey in nature. The exception to this is far northwestern North Dakota into southern Saskatchewan, where storms have become a little more developed as they move into the left exit region of the a NE-SW oriented upper level jet draped across the northern plains. As we head into the mid to late evening, storms are expected to become elevated as MLCIN increases across the board, but CAMs continue to advertise the potential for strong to severe storms developing by this period. With this update, have tweaks PoPs to account for the latest radar and short term model trends. Have also added patchy fog across portions of central North Dakota, mainly west of Highway 83. && .DISCUSSION... Issued at 345 PM CDT Sun Jun 28 2026 Upper low will linger to the northwest tonight. Meanwhile a surface low developing in the across the central plains will continue to provide ample moisture and instability to the area. The result will likely be another round of thunderstorms tonight, especially late tonight. Currently there is high amounts of instability and shear, some of it minimally capped, although capping may return this evening. However, lift is limited at the moment given the two mentioned lows are not quite to the area. A favorable jet location has been enough to develop some elevated showers and thunderstorms this afternoon, and may continue to do sot through at least the early evening. Chances for severe weather with these storms will be limited given the elevated nature of the storms. Later this evening and especially through the night, embedded waves rotating around the upper low combined with a northward shift of the surface low will bring higher chances for showers and thunderstorms. These storms could tap more into the high amounts of instability and shear, although may still remain somewhat elevated. However, the high amounts of shear (with a shear vector angled to perpendicular at times) could support rotating yet elevated supercells. Thus hail up to 2 inches will be the main threat. High 0 to 3 KM shear and adequate DCAPE would support wind gusts to 70 mph. This wind could be in excess of 80 mph as some CAMs have the upper level jet intersecting the MUCAPE axis. This is a lower confidence scenario but one to keep an eye out for late tonight into Monday morning. Given the elevated nature of these storms, the tornado threat is low tonight although an STP greater than 1 and the possibility of supercell interactions will bring at least some low chances for tornadoes. SPC has maintained a Marginal to Slight Risk for severe weather potential, mainly for the storms overnight tonight. Otherwise look for lows in the 50s and 60s tonight. Any clearing combined with light winds could bring some patchy fog tonight, although confidence in this development is low at this time. Widespread showers and thunderstorms, with isolated to scattered severe storms, could then be found Monday morning and throughout the day Monday. SPC has a Marginal to now Slight Risk for severe weather Monday, with a focus on Monday morning and any redevelopment Monday afternoon. Fairly similar setup for late tonight will the upper low moving more into the area and the surface low moving through. High amounts of shear and cape will be found during this time period. The angle to the shear vector is somewhat uncertain as it will depend on the boundary storms form on. Thus a mix of multi cell and super cells are the likely. The same hazards will be likely with hail up to 2 inches in diameter, winds to 70 mph, and perhaps an increase to the isolated tornado threat. Of concern are the potential for multiple rounds of severe weather Monday, the first being right way in the morning and the second in the afternoon. Thunderstorm chances then start to diminish in the evening as the upper low moves north. Otherwise look for slightly cooler temperatures on Monday except across the southeast where mid to upper 80s are forecast. Some higher dewpoints in the southeast could also bring some moderate heat risk. Chances for showers and thunderstorms retreat to the north Monday night, with low threat for severe weather as instability decreases. Lows in the upper 40s to upper 50s are forecast. Other than a few stray showers or thunderstorms, Tuesday through Tuesday night then looks mostly dry. NBM forecast today came in with much stronger west winds for Tuesday, indicating advisory level winds possible. ECMWF EFI values have increased somewhat, and are currently highlighting the Highway 2 corridor. Something to monitor going forward. After which, periodic showers and thunderstorms are possible through the weekend as embedded shortwaves within southwesterly to westerly flow aloft push through the region. Though some uncertainty remains, deterministic models are in fair agreement that direct Gulf moisture will frequently be cut off during most, though not necessarily during all time periods. How this evolves will highly impact severe potential during the Holiday weekend, as well as just how high heat indices become. High temperatures will gradually increase through the week as a ridge builds over the Northern Plains and Midwest, with the current NBM favoring the warmest day overall as July 3rd. This includes the warmest ambient and apparent temperatures. Latest NBM does show a potential slight cooling trend this weekend as an upper low breaks down ridging over the Northern Plains. However, moderate uncertainty remains in regard to the forecast for the holiday weekend. && .AVIATION /00Z TAFS THROUGH 00Z TUESDAY/... Issued at 720 PM CDT Sun Jun 28 2026 Mainly VFR ceilings and visibility can be found at all terminals to begin the 00Z TAF period. Isolated thunderstorms have begun to develop over portions of north western and portions of south central North Dakota. Confidence in these thunderstorms impacting any given terminal is low, as they are expected to be somewhat pulsey through the early to mid evening. Coverage of thunderstorms, some strong to severe, is expected to increase through the late evening into the early overnight period. Have included PROB30 groups for thunderstorms at most TAF sites through the morning. Late tonight into early Sunday morning, MVFR to IFR ceilings are expected to begin spreading across much of central and portions of northwestern North Dakota. Patchy fog is also possible west of Highway 83 through the early to mid morning. Have opted to include LIFR ceilings and IFR visibility at KJMS with this update. Increasing coverage of showers and thunderstorms is expected through mid morning into the early afternoon, with strong to severe storms possible across much of central North Dakota. Ceilings are expected to begin lifting from west to east through the afternoon and the end of the TAF period. Where thunderstorms do develop, gusty and erratic winds should be anticipated. && .BIS WATCHES/WARNINGS/ADVISORIES... None. && UPDATE...Adam DISCUSSION...Anglin AVIATION...Adam
Hazardous Weather Outlook National Weather Service Bismarck ND 720 PM CDT Sun Jun 28 2026 NDZ003>005-010-012-013-018>020-022-023-025-033-035>037-040>044- 046>048-050-051-055>062-300030- Renville-Bottineau-Rolette-Mountrail-McHenry-Pierce-Dunn-Mercer- Oliver-Sheridan-Wells-Foster-Stark-Burleigh-Kidder-Stutsman-Slope- Hettinger-Grant-Bowman-Adams-Emmons-Logan-La Moure-McIntosh- Dickey-Northwest Ward-Central and Southern Ward/Minot Area- Western McLean-Eastern McLean-Western Morton-Eastern Morton- Western Sioux-Eastern Sioux- 720 PM CDT Sun Jun 28 2026 /620 PM MDT Sun Jun 28 2026/ This Hazardous Weather Outlook is for portions of north central North Dakota, northwest North Dakota, south central North Dakota, southeast North Dakota, and southwest North Dakota. .DAY ONE...Tonight Isolated to scattered severe thunderstorms are possible this evening through tonight. Main hazards will be hail up to 2 inches in diameter and wind gusts up to 70 mph. An isolated tornado is possible. .DAYS TWO THROUGH SEVEN...Monday through Saturday Isolated to scattered severe thunderstorms are possible Monday. Main hazards will be hail up to 2 inches in diameter and wind gusts up to 70 mph. An isolated tornado is possible. .SPOTTER INFORMATION STATEMENT... Spotters are asked to provide reports to the NWS using standard procedures, including through our social media accounts. NDZ001-002-009-017-031-032-300030- Divide-Burke-Williams-McKenzie-Golden Valley-Billings- 720 PM CDT Sun Jun 28 2026 /620 PM MDT Sun Jun 28 2026/ This Hazardous Weather Outlook is for portions of northwest North Dakota and southwest North Dakota. .DAY ONE...Tonight Showers and thunderstorms may return this evening through tonight across far western North Dakota. The threat for severe weather in these areas is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotters are asked to provide reports to the NWS using standard procedures, including through our social media accounts.
Special Weather Statement
National Weather Service Bismarck ND
524 PM CDT Sun Jun 28 2026
NDZ001-002-282245-
Divide ND-Burke ND-
524 PM CDT Sun Jun 28 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN BURKE AND
NORTHEASTERN DIVIDE COUNTIES UNTIL 545 PM CDT...
At 524 PM CDT, a strong thunderstorm was located 6 miles northeast of
Noonan, or 18 miles east of Crosby, moving northeast at 35 mph.
HAZARD...Nickel size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible.
Locations impacted include...
Columbus and Larson.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, seek shelter inside a building.
&&
LAT...LON 4888 10294 4892 10306 4900 10303 4900 10265
4884 10282
TIME...MOT...LOC 2224Z 208DEG 31KT 4895 10291
MAX HAIL SIZE...0.88 IN
MAX WIND GUST...<30 MPH
HollanSpecial Weather Statement
National Weather Service Bismarck ND
641 PM CDT Sun Jun 28 2026
NDZ002-290015-
Burke ND-
641 PM CDT Sun Jun 28 2026
...A STRONG THUNDERSTORM WILL IMPACT BURKE COUNTY UNTIL 715 PM CDT...
At 641 PM CDT, a strong thunderstorm was located 9 miles northeast of
Powers Lake, or 26 miles north of Stanley, moving northeast at 45
mph.
HAZARD...Wind gusts up to 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Bowbells, Lignite, Portal, Flaxton, Coteau and Northgate.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4855 10259 4871 10275 4900 10267 4900 10202
4881 10202 4881 10215 4872 10215 4872 10223
4855 10223
TIME...MOT...LOC 2341Z 213DEG 37KT 4867 10254
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
HollanThe Bismarck radar (KBIS), 56 km away, was scanning. The volume nearest the first event began at 00:40 UTC.
7 hail, 2 thunderstorm wind, 1 tornado. Local standard time, as filed.
A brief stovepipe tornado was observed southwest of Riverdale. No known damage to evaluate and no other information available. By National Weather Service policy the tornado is rated EF-U (Unknown).
Turtle Lake NDAWN reported wind gusts up to 61 mph.
Trained spotter estimated wind gusts of 60 to 70 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Dakota in 2026Every state in 2026This day in weather historyThe tornado archive for North Dakota, 2026Warnings in North Dakota, June 2026
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: 1351894, 1351897, 1351898, 1351899, 1358003, 1351900, 1351901, 1351902, 1351903, 1351905.