Alert archive / North Dakota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 73, NWS Grand Forks, ND

June 29, 20188 counties in North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 29, 2018, 3:15 AM CDT for 8 counties in North Dakota. It was in force for 60 min. 25 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 29, 2018, 3:15 AM CDT (08:15 UTC)
Expired: Jun 29, 2018, 4:15 AM CDT
In force: 60 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Benson County, ND, Eddy County, ND, Grand Forks County, ND, Griggs County, ND, Nelson County, ND, Ramsey County, ND, Steele County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 94 km from the middle of the area, began a volume at 08:16 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 29, 3:15 AM CDT	TSTM WND DMG	St Michael, ND	LARGE TREE BRANCHES AND LIMBS DOWN ALL OVER. TIME ESTIMATED BASED ON RADAR.
Jun 29, 3:20 AM CDT	TSTM WND DMG	Red Willow Lake, ND	NUMEROUS LARGE TREE BRANCHES AND LIMBS BROKEN DOWN AROUND THE LAKE AREA.
Jun 29, 3:30 AM CDT	TSTM WND DMG	Michigan, ND	OBSERVER DROVE AROUND TOWN OBSERVING NO FULL TREE DISPLACEMENT BUT PLENTY OF LIMBS 3 INCHES OR GREATER IN DIAMETER.
Jun 29, 3:34 AM CDT	TSTM WND DMG	Mcville, ND	GRAIN BIN BLOWN IN AT MCVILLE ELEVATOR
Jun 29, 3:34 AM CDT	TSTM WND GST 95	Mcville, ND	GRAIN BIN BLOWN IN AT MCVILLE ELEVATOR. LOTS OF LARGE TREES BROKEN DOWN AROUND TOWN. PEAK WINDS ESTIMATED TO 95 MPH.
Jun 29, 3:38 AM CDT	TSTM WND DMG	Lakota, ND	REPORT VIA SOCIAL MEDIA AND CONFIRMED BY EMERGENCY MANAGEMENT...OF TREES DOWN AND WIDESPREAD ROOF DAMAGE DO TO FALLING TREES.
Jun 29, 3:38 AM CDT	TSTM WND DMG	Lakota, ND	REPORT VIA SOCIAL MEDIA OF TREES DOWN AND ROOF DAMAGE
Jun 29, 3:40 AM CDT	TSTM WND DMG	6 W Brocket, ND	PUBLIC REPORTS LARGE TREE BRANCHES DOWN AND SEVERAL SHINGLES BLOWN OFF THEIR ROOF.
Jun 29, 3:40 AM CDT	TSTM WND DMG	6 Wsw Brocket, ND	PUBLIC REPORTS LARGE TREE BRANCHES DOWN AND SEVERAL SHINGLES BLOWN OFF THEIR ROOF.
Jun 29, 3:40 AM CDT	TSTM WND DMG	Aneta, ND	TREE BRANCHES OF 4 TO 6 INCHES DIAMETER DOWN IN ANETA. CORN FIELDS FLATTENED ACROSS SOUTHERN ORA TOWNSHIP. TIME APPROXIMATE.
Jun 29, 3:40 AM CDT	TSTM WND DMG	Aneta, ND	TREE BRANCHES OF 4 TO 6 INCHES DIAMETER DOWN IN ANETA. TIME APPROXIMATE
Jun 29, 3:45 AM CDT	TSTM WND DMG	Michigan, ND	IMAGE RELAYED THROUGH SOCIAL MEDIA SHOWS TREE SNAPPED. TIME ESTIMATED BY RADAR.
Jun 29, 3:45 AM CDT	TSTM WND DMG	Michigan, ND	TRAMPOLINE RE-ARRANGED WITHIN BACKYARD. REPORTED VIA SOCIAL MEDIA.
Jun 29, 3:52 AM CDT	TSTM WND GST 105	3 Nne Northwood, ND	A BOWING SECTION OF A SQUALL LINE APPEARS TO HAVE CUT ACROSS ACROSS EAST CENTRAL AVON TOWNSHIP. EXTREME WIND DAMAGE EXTENDED TO THE NORTH-NORTHEAST TO AROUND 7 MILES SOUTH OF ARVILLA BY 357 AM CDT. LARGE TREES WERE SNAPPED OR SHEARED IN MULTIPLE SHELTER BELTS
Jun 29, 3:52 AM CDT	TORNADO 1	2 N Northwood, ND	A BOWING SECTION OF A SQUALL LINE APPEARS TO HAVE SPAWNED TWO BRIEF TORNADOES ACROSS PORTIONS OF AVON TOWNSHIP. THIS FIRST TORNADO TRACKED TO THE NORTHEAST FOR ROUGHLY FOUR MILES, AND LIKELY ENDED ABOUT 7 MILES SOUTH OF ARVILLA BY 357 AM CDT. LARGE TREES WERE
Jun 29, 3:55 AM CDT	TSTM WND DMG	Mccanna, ND	MULTIPLE BRANCHES AROUND 6 INCH DIAMETER SNAPPED IN PICTURES POSTED ON SOCIAL MEDIA WITH TIME ESTIMATED VIA RADAR
Jun 29, 3:55 AM CDT	TSTM WND GST 95	5 N Northwood, ND	AN EMBEDDED MICROBURST INITIATED IN THE BOWING SECTION OF A SQUALL LINE AS IT MOVED INTO AVON TOWNSHIP. EXTREME WIND DAMAGE WAS APPARENT EXTENDING NORTHWARD ACROSS NORTHWEST AVON TOWNSHIP. TREES WERE BROKEN DOWN IN SHELTER BELTS AND 3 CATTLE TRAILERS WERE OVER
Jun 29, 3:55 AM CDT	TORNADO 1	5 N Northwood, ND	A BRIEF TORNADO INITIATED TO THE NORTH OF A BOWING SECTION OF A SQUALL LINE AS IT MOVED INTO AVON TOWNSHIP. EXTREME WIND DAMAGE WAS APPARENT EXTENDING NORTHWARD FOR ROUGHLY 2 MILES, TO AROUND 5SSE OF LARIMORE BY 358 AM CDT. TREES WERE BROKEN DOWN IN SHELTER BE
Jun 29, 3:55 AM CDT	TORNADO 1	5 N Northwood, ND	THIS TORNADO DEVELOP TO THE NORTH OF THE BOWING SECTION OF A SQUALL LINE IN AVON TOWNSHIP. IT APPEARS TO HAVE TRACKED NEARLY DUE NORTH FOR ROUGHLY 3 MILES, ENDING AROUND 6 MILES SOUTHWEST OF ARVILLA BY 359 AM CDT. TREES WERE BROKEN DOWN IN SHELTER BELTS AND 3
Jun 29, 3:58 AM CDT	TSTM WND GST 70	5 Wnw Larimore, ND	PERSONAL WEATHER STATION REPORTED WIND GUST OF 70 MPH.
Jun 29, 3:58 AM CDT	TSTM WND GST 70	5 Wnw Larimore, ND	PUBLIC PERSONAL WEATHER UNDERGROUND STATION REPORTED WIND GUST OF 70 MPH.
Jun 29, 4:00 AM CDT	TSTM WND DMG	Lakota, ND	LARGE TREE BRANCHES FELLED. REPORT VIA SOCIAL MEDIA.
Jun 29, 4:02 AM CDT	TSTM WND DMG	Mccanna, ND	MULTIPLE BRANCHES AROUND 6 INCH DIAMETER SNAPPED IN PICTURES POSTED ON SOCIAL MEDIA WITH TIME ESTIMATED VIA RADAR
Jun 29, 4:07 AM CDT	TSTM WND GST 58	11 S Hamar, ND	NDAWN MESONET SITE /8N MCHENRY/ MEASURED 58 MPH WIND GUST... ASSOCIATED WITH SQUALL LINE PASSAGE.
Jun 29, 4:07 AM CDT	TSTM WND GST 58	8 N Mchenry, ND	NDAWN MESONET SITE MEASURED 58 MPH WIND GUST.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 22 storm reports to this severe thunderstorm warning; the first came 0 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 28, 10:54 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 8.3 hours before the alert went out and 209 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2612 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 1800 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 11.7

Open this sounding in Storm Lab

The text

As transmitted.

287 
WUUS53 KFGF 290815
SVRFGF
NDC005-027-035-039-063-071-091-099-290915-
/O.NEW.KFGF.SV.W.0073.180629T0815Z-180629T0915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Eastern ND/Grand Forks ND
315 AM CDT FRI JUN 29 2018

The National Weather Service in Grand Forks has issued a

* Severe Thunderstorm Warning for...
  Southeastern Benson County in northeastern North Dakota...
  Western Grand Forks County in northeastern North Dakota...
  Nelson County in northeastern North Dakota...
  Southeastern Ramsey County in northeastern North Dakota...
  Northern Griggs County in southeastern North Dakota...
  Western Walsh County in northeastern North Dakota...
  Northwestern Steele County in southeastern North Dakota...
  Eastern Eddy County in northeastern North Dakota...

* Until 415 AM CDT.

* At 314 AM CDT, severe thunderstorms were located along a line
  extending from near Crary to near Mose, moving east at 40 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Severe thunderstorms will be near...
  Doyon, Red Willow Lake and Southam around 325 AM CDT.
  Bartlett around 335 AM CDT.
  Lakota around 340 AM CDT.
  Kloten around 345 AM CDT.
  Aneta and Mapes around 350 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4797 9902 4848 9792 4768 9731 4759 9871
      4759 9879
TIME...MOT...LOC 0814Z 260DEG 33KT 4804 9869 4760 9849 

HAIL...1.00IN
WIND...60MPH
 
$$

Knutsvig

2 follow-up statements

417 
WWUS53 KFGF 290838
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
338 AM CDT FRI JUN 29 2018

NDC027-290847-
/O.CAN.KFGF.SV.W.0073.000000T0000Z-180629T0915Z/
Eddy ND-
338 AM CDT FRI JUN 29 2018

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN EDDY COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 AM CDT for
southeastern and northeastern North Dakota.

LAT...LON 4802 9886 4848 9792 4768 9731 4760 9850
      4785 9851
TIME...MOT...LOC 0837Z 260DEG 33KT 4807 9839 4763 9819 

$$

NDC005-035-039-063-071-091-099-290915-
/O.CON.KFGF.SV.W.0073.000000T0000Z-180629T0915Z/
Benson ND-Grand Forks ND-Nelson ND-Ramsey ND-Griggs ND-Walsh ND-
Steele ND-
338 AM CDT FRI JUN 29 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 AM CDT
FOR EASTERN BENSON...WESTERN GRAND FORKS...NELSON...SOUTHEASTERN
RAMSEY...NORTHERN GRIGGS...WESTERN WALSH AND NORTHWESTERN STEELE
COUNTIES...

At 337 AM CDT, severe thunderstorms were located along a line
extending from near Bartlett to 6 miles north of Jessie, moving east
at 40 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

These severe storms will be near...
  Mapes and Kloten around 350 AM CDT.
  Aneta and Michigan around 355 AM CDT.
  Whitman around 400 AM CDT.
  Petersburg around 405 AM CDT.
  Dahlen, Northwood and Fordville around 415 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4802 9886 4848 9792 4768 9731 4760 9850
      4785 9851
TIME...MOT...LOC 0837Z 260DEG 33KT 4807 9839 4763 9819 

HAIL...1.00IN
WIND...60MPH
 
$$

Knutsvig

880 
WWUS53 KFGF 290854
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
354 AM CDT FRI JUN 29 2018

NDC005-035-039-063-071-091-099-290915-
/O.CON.KFGF.SV.W.0073.000000T0000Z-180629T0915Z/
Benson ND-Grand Forks ND-Nelson ND-Ramsey ND-Griggs ND-Walsh ND-
Steele ND-
354 AM CDT FRI JUN 29 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 AM CDT
FOR EASTERN BENSON...WESTERN GRAND FORKS...NELSON...SOUTHEASTERN
RAMSEY...NORTHERN GRIGGS...WESTERN WALSH AND NORTHWESTERN STEELE
COUNTIES...

At 354 AM CDT, severe thunderstorms were located along a line 
extending from near Whitman to near Larimore, moving northeast at 60 
mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

These severe storms will be near...
  Arvilla and Turtle River State Park around 400 AM CDT.
  Lankin around 405 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4802 9886 4848 9792 4768 9731 4760 9850
      4785 9851
TIME...MOT...LOC 0854Z 229DEG 54KT 4820 9816 4787 9758 

HAIL...1.00IN
WIND...60MPH
 
$$

Knutsvig

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jun 28, 11:55 PM CDT, 3 hours 20 minutes earlier.

Area forecast discussion, Jun 28, 11:55 PM CDT, 3 hours 20 minutes before

Area Forecast Discussion
National Weather Service Grand Forks ND
1155 PM CDT Thu Jun 28 2018

.UPDATE...
Issued at 1155 PM CDT Thu Jun 28 2018

Updated forecast to increase chances of rain as the line of
thunderstorms comes through tonight. Also, tried to get timing
down to the hour. It looks like it will be around 3 AM at Devils
Lake, 5 AM Grand Forks/Fargo, and 7 AM Baudette/Bemidji/Park
Rapids. Damaging winds will be the biggest threat although hail
and isolated mesovortex-type tornadoes not out of the question.

&&

.SHORT TERM...(This evening through Friday)
Issued at 350 PM CDT Thu Jun 28 2018

Ongoing thunderstorm activity is tied to convergence near warm front
that has lifted north over our CWA. Northern extent of upper ridge
has flattened and very weak impulses may be aiding in thunderstorm
development near frontal zone. CAP has weakened and strong deep
layer shear, increasing BL moisture/instability have led to severe
thunderstorm development with some supercells. Initiation could
occur at most locations and severe potential may continue through
the evening. We are still expecting one or several complexes to
develop and track across the region after roughly 8-9Z and may
continue to impact our eastern CWA through Friday morning. Supercell
potential early on raises the possibility for hail 2" or larger and
tornado potential. Activity tonight is still shown by some CAMs to
develop into possible bow and raises the possibility of a large scale
damaging wind event.

.LONG TERM...(Friday night through Thursday)
Issued at 350 PM CDT Thu Jun 28 2018

Unsettled pattern expected through the extended periods as H5
ridge flattens and zonal flow eventually develops by late next
week. This will support potential for cold frontal passages
followed by quick temperatures recovery. Consensus keeps
thunderstorm possibilities in place, but due to progressive nature
of these embedded impulses through the extended overall
confidence isn't high. For Friday/Friday night we may see
redevelopment with cold pool in and southwest flow in place, but
guidance is very inconstant in coverage and signal. There could
be enough instability to support a few strong updrafts in the
afternoon Temperatures should be cooler this weekend (near normal
in the 80s), but recovery to above normal (possibly 90s) by late
next week is expected.

&&

.AVIATION...(For the 06Z TAFS through 06Z Friday night)
Issued at 1155 PM CDT Thu Jun 28 2018

Line of thunderstorms will sweep through the area tonight...likely
dropping cigs and vis to MVFR or IFR levels. Should be reaching
DVL by 8Z and BJI by 12Z. Strong winds are likely with this
line...and will update TAFs to increase winds even more if
upstream obs warrant it.

&&

.FGF WATCHES/WARNINGS/ADVISORIES...
ND...None.
MN...None.
&&

UPDATE...Knutsvig
SHORT TERM...DJR
LONG TERM...DJR
AVIATION...Knutsvig

Hazardous weather outlook, Jun 28, 3:51 AM CDT, 23 hours 24 minutes before

Hazardous Weather Outlook
National Weather Service Grand Forks ND
351 AM CDT Thu Jun 28 2018

MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-290900-
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-
351 AM CDT Thu Jun 28 2018

This hazardous weather outlook is for portions of eastern North
Dakota, west central and northwest Minnesota.

.DAY ONE...Today and Tonight

Isolated to scattered strong to severe thunderstorms are possible
early this morning, mainly south of the highway 200 corridor. By
late this morning, through the afternoon and into the early
evening, isolated to scattered severe thunderstorms are possible,
but mainly between the highway 2 and 200 corridor. Finally, after
midnight, the greatest risk for severe storms will arrive. These
storms will mainly affect areas along and north of the Interstate
94 corridor, but could also affect areas to the south as well.
These storms will have the potential to produce hail of 2 inches
in diameter or larger, wind gusts of 75 mph or greater, isolated
tornadoes, and localized heavy rain. Since the greatest risk for
storms will occur when most people are sleeping tonight, plan to
have a way to receive watches and warnings if and when they are
issued. Have a plan of action before going to bed tonight!

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

It will stay active, with periodic chances for thunderstorms
throughout.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

In the hours before

Local storm report, Jun 28, 9:50 PM CDT, 5 hours 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
950 PM CDT THU JUN 28 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0150 PM     TSTM WND DMG     CLIMAX                  47.61N 96.81W
06/28/2018                   POLK               MN   PUBLIC

            A FEW LARGE 3-4 INCH DIAMTER TREE BRANCHES BROKEN DOWN IN
            TOWN. A FEW MINUTES OF PEA TO PENNY SIZED HAIL AS WELL.

0225 PM     HAIL             2 NE LAVINIA            47.54N 94.78W
06/28/2018  E1.50 INCH       Beltrami           MN   PUBLIC

            HAIL FELL FOR SEVERAL MINUTES. LARGEST STONES RANGED FROM
            1.25 TO 1.5 INCH DIAMETER. REPORT AND PHOTO POSTED TO
            SOCIAL MEDIA.

0240 PM     HAIL             3 E FERTILE             47.53N 96.23W
06/28/2018  E1.00 INCH       Polk               MN   PUBLIC

0245 PM     HAIL             5 W TRAIL               47.78N 95.81W
06/28/2018  E1.00 INCH       Polk               MN   PUBLIC

            PENNY TO QUARTER SIZED HAIL AND STRONG WINDS. SOME 2-3
            INCH DIAMETER BRANCHES BROKEN DOWN IN YARD.

&&

GGUST

Local storm report, Jun 28, 9:51 PM CDT, 5 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
951 PM CDT THU JUN 28 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0140 PM     HAIL             2 N CROOKSTON           47.80N 96.61W
06/28/2018  E1.00 INCH       Polk               MN   TRAINED SPOTTER

0244 PM     FUNNEL CLOUD     3 WSW RINDAL            47.48N 96.19W
06/28/2018                   Norman             MN   LAW ENFORCEMENT

            BRIEF FUNNEL REPORTED. TIME AND LOCATION ESTIMATED BASED
            ON RADAR.

&&

GGUST

Local storm report, Jun 28, 10:20 PM CDT, 4 hours 55 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1020 PM CDT THU JUN 28 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0334 PM     HAIL             4 NW LARIMORE           47.95N 97.69W
06/28/2018  E1.75 INCH       Grand Forks        ND   911 CALL CENTER

            REPORTED ALONG HIGHWAY 2, ABOUT 3 MILES WEST OF ND18
            INTERSECTION.

&&

GGUST

Local storm report, Jun 29, 3:01 AM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
301 AM CDT FRI JUN 29 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0248 AM     TSTM WND GST     7 E LEEDS               48.29N 99.29W
06/29/2018  M56 MPH          Benson             ND   MESONET

            LEEDS RWIS MEASURED WIND GUST OF 56.5 MPH.

&&

AMOORE

Local storm report, Jun 29, 3:07 AM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
307 AM CDT FRI JUN 29 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0255 AM     TSTM WND GST     1 SW CANDO              48.48N 99.22W
06/29/2018  M58 MPH          Towner             ND   AWOS

            AWOS MEASURED WIND GUST TO 58 MPH.

&&

AMOORE

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 28, 8:17 PM CDT	Severe Thunderstorm Warning	FGF	Benson	28 min
Jun 29, 1:48 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey, Towner	57 min
Jun 29, 2:08 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Ramsey	67 min
Jun 29, 2:27 AM CDT	Tornado Warning	FGF	Benson, Ramsey	14 min
Jun 29, 2:44 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Towner	46 min
Jun 29, 2:45 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey, Towner	45 min
Jun 29, 2:59 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Grand Forks, Griggs, Steele, Traill	61 min
Jun 29, 3:16 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Sargent	59 min
Jun 29, 3:30 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Ramsey, Towner, Walsh	45 min
Jun 29, 3:31 AM CDT	Special Weather Statement	FGF	Towner	29 min
Jun 29, 3:40 AM CDT	Tornado Warning	FGF	Grand Forks, Nelson, Steele	35 min
Jun 29, 3:51 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Steele, Traill	54 min
Jun 29, 3:58 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson, Walsh	47 min
Jun 29, 4:06 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Ransom, Richland, Sargent	54 min
Jun 29, 4:25 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Traill, Walsh	65 min
Jun 29, 4:57 AM CDT	Severe Thunderstorm Warning	FGF	Richland	63 min
Jun 29, 5:05 AM CDT	High Wind Warning	FGF	Benson, Cavalier, Eddy, Grand Forks, Griggs, Nelson and 5 more	4 hr

Nearby

Severe Thunderstorm Warnings in North Dakota, 2018 Every severe thunderstorm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.