Alert archive / North Dakota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 39, NWS Grand Forks, ND

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

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 14, 2018, 9:51 PM CDT for Benson County, Ramsey County, Towner County, North Dakota. It was in force for 39 min. 3 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, 9:51 PM CDT (02:51 UTC)
Expired: Jun 14, 2018, 10:30 PM CDT
In force: 39 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Benson County, ND, Ramsey County, ND, Towner County, ND

The radar

The Minot AFB radar (KMBX), 124 km from the middle of the area, began a volume at 02:50 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, 10:08 PM CDT	TSTM WND DMG	8 N Cando, ND	POPLAR TREE SNAPPED IN SHELTER BELT. TIME ESTIMATED BASED ON RADAR.
Jun 14, 10:23 PM CDT	HAIL 1.75	5 Wnw Cando, ND	A FEW PING PONG BALL TO GOLF BALL SIZED HAIL IN VERY HEAVY RAIN. TIME ESTIMATED BASED ON RADAR.
Jun 14, 10:25 PM CDT	HAIL 1.75	7 Wnw Cando, ND	PUBLIC ESTIMATED GOLF BALL SIZED HAIL IN THE CANDO AREA. TIME AND LOCATION ESTIMATED BY 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 230 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.

884 
WUUS53 KFGF 150251
SVRFGF
NDC005-071-095-150330-
/O.NEW.KFGF.SV.W.0039.180615T0251Z-180615T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Eastern ND/Grand Forks ND
951 PM CDT THU JUN 14 2018

The National Weather Service in Grand Forks has issued a

* Severe Thunderstorm Warning for...
  Northern Benson County in northeastern North Dakota...
  Southern Towner County in northeastern North Dakota...
  Northwestern Ramsey County in northeastern North Dakota...

* Until 1030 PM CDT.

* At 951 PM CDT, a severe thunderstorm was located near Wolford, or
  42 miles northwest of Devils Lake, moving east at 25 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.

* This severe thunderstorm will be near...
  Considine around 1020 PM CDT.
  Cando and Maza around 1030 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

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

LAT...LON 4860 9897 4855 9897 4854 9894 4829 9897
      4839 9949 4872 9949 4872 9952 4874 9953
TIME...MOT...LOC 0251Z 279DEG 24KT 4853 9956 

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

BP

1 follow-up statement

921 
WWUS53 KFGF 150324
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
1024 PM CDT THU JUN 14 2018

NDC005-150334-
/O.CAN.KFGF.SV.W.0039.000000T0000Z-180615T0330Z/
Benson ND-
1024 PM CDT THU JUN 14 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN BENSON COUNTY IS
CANCELLED...
    
The severe 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 4857 9939 4865 9930 4865 9917 4860 9897
      4855 9897 4854 9894 4836 9896 4842 9947
TIME...MOT...LOC 0324Z 279DEG 24KT 4849 9923 

$$

NDC071-095-150330-
/O.CON.KFGF.SV.W.0039.000000T0000Z-180615T0330Z/
Towner ND-Ramsey ND-
1024 PM CDT THU JUN 14 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR SOUTHERN TOWNER AND NORTHWESTERN RAMSEY COUNTIES...

At 1024 PM CDT, a severe thunderstorm was located over Cando, or 31
miles northwest of Devils Lake, moving east at 30 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.

This severe storm will be near...
  Cando around 1025 PM CDT.
  Maza around 1030 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

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

LAT...LON 4857 9939 4865 9930 4865 9917 4860 9897
      4855 9897 4854 9894 4836 9896 4842 9947
TIME...MOT...LOC 0324Z 279DEG 24KT 4849 9923 

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

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, 9:56 PM CDT	Tornado Warning	FGF	Cavalier, Ramsey, Towner	49 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

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.