Alert archive / North Dakota / Tornado Warnings in 2018

Tornado Warning 12, NWS Grand Forks, ND

June 14, 2018Cavalier County, Ramsey County, Towner County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 14, 2018, 9:56 PM CDT for Cavalier County, Ramsey County, Towner County, North Dakota. It was in force for 49 min. 5 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 14, 2018, 9:56 PM CDT (02:56 UTC)
Expired: Jun 14, 2018, 10:45 PM CDT
In force: 49 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.25 in

Counties Cavalier County, ND, Ramsey County, ND, Towner County, ND

The radar

The Minot AFB radar (KMBX), 142 km from the middle of the area, began a volume at 02:56 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 14, 10:24 PM CDT	TORNADO 1	Calio, ND	A PARTIALLY RAIN WRAPPED TORNADO LIKELY TRACKED 3 TO 4 MILES TO THE ESE, FROM THE NORTHWEST CORNER OF CALIO INTO NORTHEAST SEIVERT TOWNSHIP, ENDING ROUGHLY 3 SSW OF MUNICH BY 1033 PM CDT. THE TORNADO BLEW DOWN SEVERAL TREES IN CALIO AND TORE SOME STEEL SHEETS
Jun 14, 10:34 PM CDT	HAIL 1	Munich, ND
Jun 14, 10:44 PM CDT	HAIL 1	7 Ssw Munich, ND	HEAVY RAIN AND A FEW LARGE HAIL. SEVERAL LARGER TREE BRANCHES BROKEN DOWN AS WELL.
Jun 14, 10:44 PM CDT	HAIL 1	8 Ssw Munich, ND	HEAVY RAIN AND A FEW LARGE HAIL. SEVERAL LARGER TREE BRANCHES BROKEN DOWN AS WELL.
Jun 14, 10:45 PM CDT	HAIL 1	5 Se Calio, ND	PUBLIC ESTIMATED ONE INCH HAIL. TIME ESTIMATED FROM RADAR.

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

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 14, 8:32 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.9 hours before the alert went out and 249 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: 2531 J/kg
Mixed-layer CIN: -283 J/kg
Mixed-layer LCL: 1747 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

067 
WFUS53 KFGF 150256
TORFGF
NDC019-071-095-150345-
/O.NEW.KFGF.TO.W.0012.180615T0256Z-180615T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Eastern ND/Grand Forks ND
956 PM CDT THU JUN 14 2018

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  East central Towner County in northeastern North Dakota...
  Southwestern Cavalier County in northeastern North Dakota...
  North central Ramsey County in northeastern North Dakota...

* Until 1045 PM CDT.
    
* At 956 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Egeland, or 34 miles west of Langdon, moving east
  at 20 mph.

  HAZARD...Tornado and half dollar size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Egeland around 1005 PM CDT.
  Clyde around 1020 PM CDT.
  Calio around 1025 PM CDT.
  Munich around 1035 PM CDT.
  Alsen around 1045 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Grand Forks.

&&

LAT...LON 4866 9927 4883 9918 4882 9854 4847 9871
TIME...MOT...LOC 0256Z 289DEG 18KT 4872 9913 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

BP

3 follow-up statements

036 
WWUS53 KFGF 150322
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
1022 PM CDT THU JUN 14 2018

NDC019-071-095-150345-
/O.CON.KFGF.TO.W.0012.000000T0000Z-180615T0345Z/
Towner ND-Cavalier ND-Ramsey ND-
1022 PM CDT THU JUN 14 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR EAST
CENTRAL TOWNER...SOUTHWESTERN CAVALIER AND NORTH CENTRAL RAMSEY
COUNTIES...
    
At 1022 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Calio, or 26 miles west of Langdon, moving east at
20 mph.

HAZARD...Tornado and half dollar size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Calio around 1025 PM CDT.
  Munich around 1035 PM CDT.
  Alsen around 1045 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 4860 9911 4883 9897 4882 9854 4847 9871
TIME...MOT...LOC 0322Z 289DEG 18KT 4868 9894 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

BP

959 
WWUS53 KFGF 150336
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
1036 PM CDT THU JUN 14 2018

NDC095-150346-
/O.CAN.KFGF.TO.W.0012.000000T0000Z-180615T0345Z/
Towner ND-
1036 PM CDT THU JUN 14 2018

...THE TORNADO WARNING FOR EAST CENTRAL TOWNER COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 200 AM CDT for northeastern
North Dakota.

LAT...LON 4872 9887 4869 9861 4847 9871 4852 9888
      4855 9897 4860 9897
TIME...MOT...LOC 0336Z 289DEG 18KT 4866 9884 

$$

NDC019-071-150345-
/O.CON.KFGF.TO.W.0012.000000T0000Z-180615T0345Z/
Cavalier ND-Ramsey ND-
1036 PM CDT THU JUN 14 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR
SOUTHWESTERN CAVALIER AND NORTH CENTRAL RAMSEY COUNTIES...
    
At 1036 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Munich, or 22 miles west of Langdon, moving east at
20 mph.

HAZARD...TORNADO and half dollar size hail.

SOURCE...Radar indicated rotation.

IMPACT...Expect damage to mobile homes, roofs, and vehicles.

This dangerous storm will be near...
  Alsen around 1045 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 4872 9887 4869 9861 4847 9871 4852 9888
      4855 9897 4860 9897
TIME...MOT...LOC 0336Z 289DEG 18KT 4866 9884 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

BP

971 
WWUS53 KFGF 150344
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
1044 PM CDT THU JUN 14 2018

NDC019-071-150353-
/O.EXP.KFGF.TO.W.0012.000000T0000Z-180615T0345Z/
Cavalier ND-Ramsey ND-
1044 PM CDT THU JUN 14 2018

...THE TORNADO WARNING FOR SOUTHWESTERN CAVALIER AND NORTH CENTRAL
RAMSEY COUNTIES WILL EXPIRE AT 1045 PM CDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

A Tornado Watch remains in effect until 200 AM CDT for northeastern
North Dakota.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Grand Forks.

Remember, a Severe Thunderstorm Warning still remains in effect for 
southwest Cavalier and north central Ramsey counties until 1115 PM.

LAT...LON 4872 9887 4869 9861 4847 9871 4852 9888
      4855 9897 4860 9897
TIME...MOT...LOC 0343Z 289DEG 18KT 4865 9879 

$$

BP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 14, 8:54 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Towner	66 min
Jun 14, 9:17 PM CDT	Tornado Warning Tornado observed	FGF	Cavalier, Towner	43 min
Jun 14, 9:51 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey, Towner	39 min
Jun 14, 10:29 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Ramsey, Towner	46 min
Jun 14, 10:42 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Ramsey	33 min
Jun 14, 11:06 PM CDT	Special Weather Statement	FGF	Pembina	24 min
Jun 14, 11:11 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Ramsey	49 min
Jun 14, 11:15 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina, Ramsey, Walsh	45 min
Jun 14, 11:34 PM CDT	Special Weather Statement	FGF	Pembina	56 min
Jun 14, 11:57 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Nelson, Ramsey, Walsh	48 min
Jun 14, 11:59 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina, Ramsey, Walsh	46 min
Jun 15, 12:17 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom	28 min
Jun 15, 12:35 AM CDT	Special Weather Statement	FGF	Pembina	40 min
Jun 15, 12:40 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina, Ramsey, Walsh	42 min
Jun 15, 12:44 AM CDT	Special Weather Statement	FGF	Cass	31 min
Jun 15, 1:01 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Ransom, Richland, Sargent	44 min
Jun 15, 1:17 AM CDT	Special Weather Statement	FGF	Cass	43 min
Jun 15, 1:21 AM CDT	Special Weather Statement	FGF	Walsh	54 min
Jun 15, 1:55 AM CDT	Severe Thunderstorm Warning	FGF	Cass	34 min

Nearby

Tornado Warnings in North Dakota, 2018 Every tornado warning in 2018 Tornadoes 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.