Alert archive / North Dakota / Tornado Warnings in 2011

Tornado Warning 13, NWS Grand Forks, ND

June 3, 2011Nelson County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 3, 2011, 3:12 AM CDT for Nelson County, North Dakota. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 3, 2011, 3:12 AM CDT (08:12 UTC)
Expired: Jun 3, 2011, 4:00 AM CDT
In force: 48 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon

County Nelson County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 86 km from the middle of the area, began a volume at 08:13 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.

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 3, 1:25 AM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 8.2 hours before the alert went out and 236 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: 2239 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 1718 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 2 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

729 
WFUS53 KFGF 030812
TORFGF
NDC063-030900-
/O.NEW.KFGF.TO.W.0013.110603T0812Z-110603T0900Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
312 AM CDT FRI JUN 3 2011

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN NELSON COUNTY IN NORTHEAST NORTH DAKOTA...

* UNTIL 400 AM CDT

* AT 309 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE STORM WAS
  LOCATED 6 MILES EAST OF STUMP LAKE...OR 29 MILES SOUTHEAST OF
  DEVILS LAKE...MOVING TO THE NORTHEAST AT 40 MPH.

* THE TORNADIC STORM WILL BE NEAR...
  MAPES AROUND 320 AM CDT.
  MICHIGAN AROUND 325 AM CDT.
  PETERSBURG AROUND 330 AM CDT.
  WHITMAN AROUND 335 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.

&&

LAT...LON 4820 9814 4807 9790 4782 9828 4794 9848
TIME...MOT...LOC 0812Z 224DEG 34KT 4795 9827

$$

HOPPES

2 follow-up statements

713 
WWUS53 KFGF 030833
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
333 AM CDT FRI JUN 3 2011

NDC063-030900-
/O.CON.KFGF.TO.W.0013.000000T0000Z-110603T0900Z/
NELSON ND-
333 AM CDT FRI JUN 3 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN NELSON COUNTY
IN NORTHEAST NORTH DAKOTA UNTIL 400 AM CDT...

AT 327 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MICHIGAN...OR
37 MILES EAST OF DEVILS LAKE...MOVING TO THE NORTHEAST AT 40 MPH.

THE TORNADIC STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN
NELSON COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.

&&

LAT...LON 4817 9818 4819 9814 4807 9790 4794 9809
      4793 9813 4805 9833
TIME...MOT...LOC 0833Z 227DEG 37KT 4806 9803

$$

TG

828 
WWUS53 KFGF 030854
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
354 AM CDT FRI JUN 3 2011

NDC063-030904-
/O.EXP.KFGF.TO.W.0013.000000T0000Z-110603T0900Z/
NELSON ND-
354 AM CDT FRI JUN 3 2011

...THE TORNADO WARNING FOR NORTHEASTERN NELSON COUNTY IN NORTHEAST
NORTH DAKOTA WILL EXPIRE AT 400 AM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 AM CDT. 

LAT...LON 4817 9818 4819 9814 4807 9790 4794 9809
      4793 9813 4805 9833
TIME...MOT...LOC 0854Z 227DEG 37KT 4821 9779

$$

HOPPES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 2:11 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs, Steele	64 min
Jun 3, 2:32 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Grand Forks, Griggs, Nelson, Ramsey and 1 more	58 min
Jun 3, 2:34 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Steele, Traill	28 min
Jun 3, 3:30 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Grand Forks, Nelson, Pembina, Walsh	60 min
Jun 3, 3:39 AM CDT	Tornado Warning	FGF	Pembina, Walsh	51 min
Jun 3, 4:23 AM CDT	Severe Thunderstorm Warning	FGF	Pembina	24 min
Jun 3, 4:32 AM CDT	Areal Flood Advisory	FGF	Nelson, Pembina, Walsh	6 hr
Jun 3, 6:54 AM CDT	Wind Advisory	FGF	Benson, Cavalier, Ramsey, Towner, Walsh	14 hr

Nearby

Tornado Warnings in North Dakota, 2011 Every tornado warning in 2011 Tornadoes in 2011

Sources

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