Overview
With a very hot and humid airmass an unstable atmosphere produced severe storms from Sunday afternoon into early Monday morning. The first phase of the event was mainly hail, with some reports of rotation and wall clouds. As we moved into the late evening the event shifted to a high wind event with reported wind gusts up to 80 mph. This took down many trees, power lines, and damaged some buildings. There were some reports of funnel clouds that are being investigated for possible tornadoes.Tornadoes:
Tornado reports are under investigation.
The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
| EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
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Wind & Hail:
Wind
High winds of 60 to 80 mph winds were observed. Some damage in the Aneta, ND to Larimore, ND had damage that is still being investigated.
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| Wind Damage in Dazey, ND from Shawn McClintock on Facebook | Wind Damage in Griggs County, ND from Christy Ronningen | Wind Damage in Buxton, ND | Caption |
Hail
There were two main areas of hail both with sizes up to the size of golf balls or limes: northwest Minnesota north of Highway 2 and the southern Devils Lake Basin. This section is still under construction and pictures will be added as we receive them
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Radar
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| Sunday 2pm to 7pm | Sunday 7pm to Monday 1 am | Monday 1 am to 7 am |
Rain Reports
...PRECIPITATION REPORTS FROM THE PAST 24 HOURS... LOCATION AMOUNT TIME/DATE PROVIDER LANCASTER MN 4.70 IN 0700 AM 06/08 COOP HALLOCK 4.37 IN 0838 AM 06/08 TRAINED SPOTTER HALLOCK AP MN 4.14 IN 0835 AM 06/08 AWOS CARIBOU MN 4.13 IN 0645 AM 06/08 HADS HALLOCK MN 3.99 IN 0530 AM 06/08 HADS 3 SSE MATTSON 3.69 IN 0844 AM 06/08 NDAWN LAKE BRONSON MN 3.04 IN 0700 AM 06/08 HADS HALLOCK AP MN 2.79 IN 0815 AM 06/08 AWOS CARIBOU MN 2.79 IN 0645 AM 06/08 HADS 4 SW HUMBOLDT 2.56 IN 0845 AM 06/08 NDAWN CASSELTON ND 0.4 ENE 2.34 IN 0700 AM 06/08 COCORAHS HOLT MN 6 E 2.27 IN 0500 PM 06/07 HADS 2 WSW SAINT THOMAS 2.22 IN 0850 AM 06/08 NDAWN GRAFTON ND 6.8 N 2.21 IN 0630 AM 06/08 COCORAHS PEMBINA ND 2.10 IN 0700 AM 06/08 COOP THIEF RIVER FALLS MN 1.97 IN 0345 PM 06/07 HADS BAGLEY MN 1.88 IN 0610 PM 06/07 AWS LEEDS ND 4 SE 1.84 IN 0700 AM 06/08 HADS GLYNDON MN 2 NW 1.83 IN 0800 AM 06/08 HADS HOLT MN 15 E 1.81 IN 0520 PM 06/07 RAWS LAKE BRONSON MN 1.79 IN 0700 AM 06/08 HADS 5 NW PROSPER 1.73 IN 0851 AM 06/08 NDAWN HIGHLANDING MN 20 E 1.72 IN 0100 AM 06/08 HADS LAKE BRONSON MN 1.71 IN 0600 PM 06/07 HADS NEW ROCKFORD ND 4.0 WNW 1.70 IN 0700 AM 06/08 COCORAHS HAWLEY MN 5.2 WNW 1.70 IN 0700 AM 06/08 COCORAHS CANDO ND 1 E 1.70 IN 0700 AM 06/08 COOP BEMIDJI MN 3.5 WSW 1.67 IN 0700 AM 06/08 COCORAHS THIEF RIVER FALLS AP MN 1.66 IN 0556 PM 06/07 AWOS RED LAKE MN 1.65 IN 0509 PM 06/07 RAWS THIEF RIVER FALLS MN 5 N 1.63 IN 0515 PM 06/07 HADS FERTILE MN 0.6 E 1.60 IN 0700 AM 06/08 COCORAHS 1 ESE FARGO 1.59 IN 0841 AM 06/08 BROADCAST MEDIA GLYNDON MN 2 N 1.58 IN 0800 AM 06/08 HADS 6 E PERLEY 1.57 IN 0851 AM 06/08 NDAWN FLORIAN MN 1 S 1.55 IN 0545 PM 06/07 HADS HORACE 1.54 IN 0842 AM 06/08 BROADCAST MEDIA GLYNDON MN 6.9 ENE 1.54 IN 0700 AM 06/08 COCORAHS FARGO ND 7 SW 1.52 IN 0844 AM 06/08 CWOP TWIN VALLEY MN 0.1 NE 1.52 IN 0800 AM 06/08 COCORAHS HORACE ND 2.0 N 1.51 IN 0700 AM 06/08 COCORAHS 4 NW CRYSTAL 1.50 IN 0852 AM 06/08 NDAWN MCLEOD ND 3 E 1.50 IN 0825 AM 06/08 COOP THIEF RIVER FALLS MN 0.3 NW 1.50 IN 0700 AM 06/08 COCORAHS LISBON ND 0.5 ENE 1.50 IN 0614 AM 06/08 COCORAHS WEST FARGO ND 3.8 SSE 1.49 IN 0700 AM 06/08 COCORAHS DILWORTH MN 0.8 WNW 1.49 IN 0700 AM 06/08 COCORAHS 2 NE SABIN 1.47 IN 0854 AM 06/08 NDAWN MOORHEAD MN 2.0 N 1.46 IN 0700 AM 06/08 COCORAHS 2 W LISBON 1.45 IN 0854 AM 06/08 NDAWN LISBON ND 18 E 1.45 IN 0849 AM 06/08 RAWS MOORHEAD MN 1 NE 1.44 IN 0851 AM 06/08 CWOP LISBON ND 18 E 1.44 IN 0749 AM 06/08 RAWS NORTHCOTE MN 2 ENE 1.44 IN 0600 AM 06/08 HADS FARGO ND 3.7 SSE 1.43 IN 0700 AM 06/08 COCORAHS 10 E GRAFTON 1.41 IN 0855 AM 06/08 NDAWN ADA MN 2 S 1.41 IN 0700 AM 06/08 HADS HIGHLANDING MN 20 E 1.38 IN 0530 PM 06/07 HADS 7 ESE ULEN 1.37 IN 0854 AM 06/08 NDAWN LENGBY 1.7 NNE 1.37 IN 0800 AM 06/08 COCORAHS FARGO 7.2 S 1.37 IN 0700 AM 06/08 COCORAHS WARREN MN 3 ENE 1.36 IN 0515 PM 06/07 HADS GLYNDON MN 2 NW 1.35 IN 0730 AM 06/08 HADS BAGLEY MN 1.33 IN 0855 AM 06/08 AWS BARNESVILLE 7.7 N 1.33 IN 0800 AM 06/08 COCORAHS THIEF RIVER FALLS MN 0.6 NW 1.33 IN 0700 AM 06/08 COCORAHS MOORHEAD MN 2.8 SW 1.32 IN 0800 AM 06/08 COCORAHS HORACE ND 9.3 SSE 1.32 IN 0600 AM 06/08 COCORAHS RED LAKE FALLS MN 1.32 IN 0345 PM 06/07 HADS 1 S FARGO 1.31 IN 0843 AM 06/08 BROADCAST MEDIA PARK RIVER ND 1.31 IN 0800 AM 06/08 HADS LAKE ITASCA MN 2 SE 1.30 IN 0807 AM 06/08 RAWS MENTOR MN 3 NW 1.28 IN 0832 AM 06/08 RAWS BEMIDJI AP MN 1.26 IN 0835 AM 06/08 AWOS BAUDETTE MN 3 S 1.25 IN 0806 AM 06/08 RAWS 5 N LEONARD 1.24 IN 0856 AM 06/08 NDAWN BEMIDJI MN 2 WNW 1.24 IN 0806 AM 06/08 RAWS SOLWAY MN 2.1 S 1.24 IN 0800 AM 06/08 COCORAHS MENTOR MN 2 SW 1.23 IN 0848 AM 06/08 CWOP MOORHEAD MN 1.0 NE 1.22 IN 0700 AM 06/08 COCORAHS RED LAKE MN 1.22 IN 0609 PM 06/07 AWS GLYNDON MN 2 N 1.21 IN 0715 AM 06/08 HADS CLEMENSTON MN 1.19 IN 0530 AM 06/08 HADS 5 N ADAMS 1.18 IN 0855 AM 06/08 NDAWN RED LAKE MN 1.18 IN 0809 AM 06/08 RAWS LEEDS ND 4 SE 1.18 IN 0500 PM 06/07 HADS HIGHLANDING MN 1.17 IN 0500 PM 06/07 HADS TURTLE RIVER MN 3.6 E 1.16 IN 0700 AM 06/08 COCORAHS VERN MN 2 W 1.16 IN 0530 AM 06/08 HADS GOODRIDGE MN 7.4 SW 1.15 IN 0600 AM 06/08 COCORAHS VERN MN 2 W 1.15 IN 0530 AM 06/08 HADS GREENBUSH MN 1.14 IN 0700 AM 06/08 COOP 4 W FINGAL 1.13 IN 0856 AM 06/08 NDAWN BEMIDJI MN 8 N 1.13 IN 0849 AM 06/08 CWOP HOLT MN 15 E 1.13 IN 0820 AM 06/08 RAWS BEMIDJI MN 8 N 1.13 IN 0818 AM 06/08 CWOP BLACKDUCK MN 1.13 IN 0759 AM 06/08 RAWS MENTOR MN 2.5 SSW 1.13 IN 0645 AM 06/08 COCORAHS WARROAD MN 1.11 IN 0800 AM 06/08 HADS FERTILE MN 3 WSW 1.10 IN 0730 AM 06/08 HADS COMSTOCK MN 0.1 E 1.10 IN 0600 AM 06/08 COCORAHS KELLIHER MN 1 W 1.10 IN 0507 PM 06/07 RAWS BEMIDJI MN 7.8 ENE 1.07 IN 0700 AM 06/08 COCORAHS BEMIDJI MN 4.8 NNE 1.07 IN 0700 AM 06/08 COCORAHS SAUM MN 3 SW 1.01 IN 0445 PM 06/07 HADS OBSERVATIONS ARE COLLECTED FROM A VARIETY OF SOURCES WITH VARYING EQUIPMENT AND EXPOSURES. WE THANK ALL VOLUNTEER WEATHER OBSERVERS FOR THEIR DEDICATION. NOT ALL DATA LISTED ARE CONSIDERED OFFICIAL.
Environment
With moisture transport from the Gulf of Mexico thanks to Tropical Storm Christobal there was ample moisture to work with. This can be seen in the 850 mb analysis with the southerly winds throughout the central US. There was also ample surface heating with a high temperature of 99 being tried at Fargo, ND. This lead to a very unstable environment. Synoptic sources of lift were provided by approaching upper level wave and a warm front across parts of northeast North Dakota and northwest Minnesota.
The near-storm environment was characterized by ML CAPE of 1000 to 3500 J/kg, bulk shear of 40 to 60 knots, and 0-1 km SRH up to 500 m2/s2. The areas where these parameters were maximized did not always overlap. The highest 0-1 km SRH values being exclusively ahead of the warm front and in that area the atmosphere was more stable. There were some tornado warned storms in the area of very high 0-1 km SRH, but those storms had to fight nearby storms for energy therefore having difficulty in producing a supercell tornado. Behind the warm front there were high LCLs and much weaker low level shear which lead to a less favorable environment for a tornadic supercell. With the ample CAPE and shear storms were able to produce a high wind event that impacted much of eastern North Dakota into parts of northwest and west central Minnesota into the evening and night.
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| Figure 1: Surface Analysis | Figure 2: 850 mb at 00Z | Figure 3: 500 mb at 00Z |
Near-storm environment summary.
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| Figure 4: ML CAPE at 00Z | Figure 5: Bulk Shear at 00Z | Figure 6: 0-1km SRH at 00Z |
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