A strong thunderstorm over Hubbard County caused some damage west-southwest of Lake George.
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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.
A strong thunderstorm over Hubbard County caused some damage west-southwest of Lake George.
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 May 27, 5:41 PM CST, 3 hours 9 minutes earlier.
Area Forecast Discussion National Weather Service Grand Forks ND 641 PM CDT Sun May 27 2018 .UPDATE... Issued at 640 PM CDT Sun May 27 2018 Minor changes to adjust for current sky cover/hourly trends in the near term. Still monitoring frontal zone in our far south for possible stronger storms where ML CAPE on mesoanalysis has increase to 3000 J/KG range as previously expected. CAP is holding however, so coverage would be limited and CAMs still not showing a strong signal in this more favorable region of our CWA. Radar/lighting data shows weak thunderstorm near Bemidji and there is a subtle convergence zone that may favor more coverage in line with CAMs (but this would be weaker due to less instability). Overall, coverage/timing seemed reasonable and in line with current trends, so no major changes seemed warranted at this time. && .SHORT TERM...(This evening through Monday) Issued at 247 PM CDT Sun May 27 2018 Convective placement and timing are the main impacts for the evening and overnight then again late tomorrow afternoon and evening. This afternoons weak activity in the central valley has continued to produce cloud cover across the central and southern valley limiting max temps. Its also limited instability across the FA. Latest mesoanalysis shows strong capping across the southern FA with ML CAPE values near 1000J/kg. As clearing and SFC low gradually nose into the SE FA guidance suggests ML CAPE of 2000 to 3000J/KG will develop in the SE ND by 7pm. CAMS continue to show showers and storms developing in the 01 to 04Z time frame along the Lisbon to Fargo To Park Rapids line. Will highlight the highest chances through this area along the midlevel baroclinic and convergence zone. Chances for severe storms remain low with storms capable of hail up to an inch and wind gusts to 60mph in SE ND this evening. Showers and storms will be ending through the overnight as the best forcing and potential for organized convection lifts north out of the western SD west of the FA into west and central ND. With western activity more cloud cover is expected similar to today keeping temps of bit cooler than previously forecast with highs in the low 80s and upper 70s for most. The far south will see upper 80s and low 90s potential. .LONG TERM...(Monday night through Sunday) Issued at 247 PM CDT Sun May 27 2018 Monday night through Wednesday... Cooling trend from the hot weekend with a return to near normal temperatures on Wednesday. The chances for rain showers and thunderstorms continue through Wednesday. This is driven by a surface low and upper trough that are expected to move across the Dakotas. During this period the Storm Prediction Center has eastern North Dakota and much of Minnesota in a marginal risk for severe weather. There is quite a bit of uncertainty in the severe potential for this period because of the potential for convection in earlier periods. There are areas of favorable shear and instability in the models but this could change if earlier convection stabilizes the atmosphere. Thursday through Sunday... A break in the active weather is expected on Thursday as upper level ridging sets in before a more active period returns for the next weekend. The GFS has precipitable water anomalies of near an inch at times for this next weekend so it could be quite wet. Temperatures will warm up again Thursday and Friday before cooling back towards normal for next weekend. && .AVIATION...(For the 00Z TAFS through 00Z Monday evening) Issued at 629 PM CDT Sun May 27 2018 VFR conditions should prevail through the TAF period. Primary concern will be potential for showers or even thunderstorms. Better chances will be at KFAR and KBJI this evening, but can't be ruled out across the rest of eastern ND/northwest MN. After any activity winds down late tonight (roughly 06-08Z) we expect a lull in activity, with chances returning again during the later part of the TAF period on Monday (not enough confidence to add to TAFs for the later part of the TAF period). Northeast winds will generally remain below 10kt through tonight, with gusts during the day Monday 15-20kt. && .FGF WATCHES/WARNINGS/ADVISORIES... ND...None. MN...None. && UPDATE...DJR SHORT TERM...JK LONG TERM...NC AVIATION...DJR
Hazardous Weather Outlook National Weather Service Grand Forks ND 355 AM CDT Sun May 27 2018 MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-281300- West Polk-Norman-Clay-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-West Becker-East Becker-Wilkin- West Otter Tail-East Otter Tail-Wadena-Grant-Towner-Cavalier- Pembina-Benson-Ramsey-Eastern Walsh County-Eddy-Nelson- Grand Forks-Griggs-Steele-Traill-Barnes-Cass-Ransom-Sargent- Richland-Western Walsh County- 355 AM CDT Sun May 27 2018 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...Today and Tonight Thunderstorms will move through the region during the morning hours. This area of storms will be mainly sub severe, with wind gusts up to 50 mph the main impact. Strong to severe thunderstorms are possible this evening and overnight across parts of the region. Coverage of these storms may be limited, with hail around 1 inch and wind gusts up to 60 mph the main impacts. .DAYS TWO THROUGH SEVEN...Monday through Saturday There will be periods of thunderstorm activity during the first half of the work week and another period from late in the week through next weekend. The best chance for any severe weather will be late Monday afternoon and evening, however exact timing and location is still uncertain. At the current time, southeastern North Dakota would have the best chance for severe storms Monday evening. .SPOTTER INFORMATION STATEMENT... Spotter activation is possible this evening.
Special Weather Statement
National Weather Service Eastern ND/Grand Forks ND
925 PM CDT SUN MAY 27 2018
MNZ023-024-028-280300-
East Becker MN-South Clearwater MN-Hubbard MN-
925 PM CDT SUN MAY 27 2018
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL HUBBARD...NORTHEASTERN
BECKER AND SOUTHEASTERN CLEARWATER COUNTIES UNTIL 1000 PM CDT...
At 925 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Wilkinson to near Two Inlets. Movement was
east at 30 mph.
Dime size hail and winds in excess of 40 mph will be possible with
these storms.
Strong thunderstorms will be near...
Laporte and Benedict around 930 PM CDT.
Lake George, Camp Wilderness and Emmaville around 955 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.
&&
LAT...LON 4704 9467 4700 9551 4729 9517 4736 9467
4732 9467 4732 9466
TIME...MOT...LOC 0225Z 261DEG 27KT 4722 9465 4707 9528
DJRThe Fargo/Grand Forks radar (KMVX), 168 km away, was scanning. The volume nearest the first event began at 02:47 UTC.
1 thunderstorm wind. Local standard time, as filed.
A few small poplar trees and some larger branches were blown down near the intersection of highways 113 and 71. A few minutes of dime sized hail also fell.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2018Every state in 2018This day in weather historyWarnings in Minnesota, May 2018
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: 749284.