Alert archive / North Dakota / Tornado Warnings in 2011

Tornado Warning 15, NWS Grand Forks, ND

June 13, 2011Grand Forks County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 13, 2011, 7:23 PM CDT for Grand Forks County, North Dakota. It was in force for 52 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 13, 2011, 7:23 PM CDT (00:23 UTC)
Expired
Jun 13, 2011, 8:15 PM CDT
In force
52 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon

County Grand Forks County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 62 km from the middle of the area, began a volume at 00:23 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

TimeReportWhereRemark
Jun 13, 7:28 PM CDTFUNNEL CLOUD1 W Grand Forks Afb, ND
Jun 13, 7:40 PM CDTTSTM WND GST 652 E Gilby, ND
Jun 13, 7:43 PM CDTTSTM WND DMG2 E Gilby, NDTOP OF TREES SNAPPED OFF.

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

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.4 hours before the alert went out and 289 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-pSkew-T log-p diagram, Bismarck Municip, ND at 00:00Z on 2011-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 2011-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2042 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

500 
WFUS53 KFGF 140023
TORFGF
NDC035-140115-
/O.NEW.KFGF.TO.W.0015.110614T0023Z-110614T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
723 PM CDT MON JUN 13 2011

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA...

* UNTIL 815 PM CDT

* AT 718 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE STORM WAS
  LOCATED 3 MILES SOUTHWEST OF HONEYFORD...OR 21 MILES WEST OF GRAND
  FORKS...MOVING TO THE NORTHEAST AT 25 MPH.

* THE TORNADIC STORM WILL BE NEAR...
  MEKINOCK AND GILBY AROUND 730 PM CDT.
  JOHNSTOWN AROUND 735 PM CDT.
  MANVEL AROUND 750 PM CDT.

FOR MOTORISTS ON INTERSTATE 29...THE TORNADIC STORM WILL BE
BETWEEN...MILE MARKER 150 AROUND 750 PM CDT...AND MILE MARKER 159
AROUND 800 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4819 9742 4819 9718 4806 9713 4787 9752
      4801 9769
TIME...MOT...LOC 0023Z 228DEG 23KT 4801 9747

$$

HOPKINS
3 follow-up statements
089 
WWUS53 KFGF 140040
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
740 PM CDT MON JUN 13 2011

NDC035-140115-
/O.CON.KFGF.TO.W.0015.000000T0000Z-110614T0115Z/
GRAND FORKS ND-
740 PM CDT MON JUN 13 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN GRAND FORKS
COUNTY IN NORTHEAST NORTH DAKOTA UNTIL 815 PM CDT...

AT 737 PM CDT...WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 3 MILES
NORTHWEST OF MEKINOCK...OR 18 MILES NORTHWEST OF GRAND FORKS...MOVING
TO THE NORTHEAST AT 20 MPH.

THE DEVELOPING TORNADO WILL BE NEAR...
  JOHNSTOWN AROUND 745 PM CDT.
  MANVEL AROUND 805 PM CDT.

FOR MOTORISTS ON INTERSTATE 29...THE DEVELOPING TORNADO WILL BE
BETWEEN...MILE MARKER 150 AROUND 805 PM CDT...AND MILE MARKER 159
AROUND 815 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4819 9742 4819 9718 4806 9713 4787 9752
      4801 9769
TIME...MOT...LOC 0040Z 222DEG 18KT 4805 9739

$$

HOPKINS
961 
WWUS53 KFGF 140056
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
756 PM CDT MON JUN 13 2011

NDC035-140115-
/O.CON.KFGF.TO.W.0015.000000T0000Z-110614T0115Z/
GRAND FORKS ND-
756 PM CDT MON JUN 13 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL GRAND FORKS
COUNTY IN NORTHEAST NORTH DAKOTA UNTIL 815 PM CDT...

AT 752 PM CDT...WEATHER SPOTTERS REPORTED A FUNNEL CLOUD 4 MILES
NORTHEAST OF MEKINOCK...OR 15 MILES NORTHWEST OF GRAND FORKS...MOVING
TO THE NORTHEAST AT 20 MPH.

THE DEVELOPING TORNADO WILL BE NEAR...
  MANVEL AROUND 805 PM CDT.

FOR MOTORISTS ON INTERSTATE 29...THE DEVELOPING TORNADO WILL BE
BETWEEN...MILE MARKER 154 AROUND 810 PM CDT...AND MILE MARKER 159
AROUND 815 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4809 9754 4819 9742 4819 9718 4806 9713
      4796 9734
TIME...MOT...LOC 0056Z 222DEG 18KT 4808 9729

$$

HOPKINS
354 
WWUS53 KFGF 140112
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
812 PM CDT MON JUN 13 2011

NDC035-140122-
/O.EXP.KFGF.TO.W.0015.000000T0000Z-110614T0115Z/
GRAND FORKS ND-
812 PM CDT MON JUN 13 2011

...THE TORNADO WARNING FOR NORTH CENTRAL GRAND FORKS COUNTY IN
NORTHEAST NORTH DAKOTA WILL EXPIRE AT 815 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
 HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS THUNDERSTORM.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN GRAND FORKS.

LAT...LON 4809 9754 4819 9742 4819 9718 4806 9713
      4796 9734
TIME...MOT...LOC 0112Z 222DEG 18KT 4814 9721

$$

HOPKINS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 8:41 PM CDTSevere Thunderstorm WarningFGFSteele39 min
Jun 13, 8:46 PM CDTTornado WarningFGFSteele34 min
Jun 13, 9:27 PM CDTAreal Flood AdvisoryFGFSteele6 hr

Nearby

Tornado Warnings in North Dakota, 2011Every tornado warning in 2011Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.