Alert archive / Minnesota / Tornado Warnings in 2006

Tornado Warning 43, NWS Grand Forks, ND

September 16, 2006Grant County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Sep 16, 2006, 7:31 PM CDT for Grant County, Minnesota. It was in force for 59 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
Sep 16, 2006, 7:31 PM CDT (00:31 UTC)
Expired
Sep 16, 2006, 8:30 PM CDT
In force
59 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

County Grant County, MN

The radar

The Aberdeen radar (KABR), 191 km from the middle of the area, began a volume at 00:32 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.

IssuedProductOfficeLasted
Sep 16, 5:29 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 0.5 hours before the alert went out and 218 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, Aberdeen, SD at 00:00Z on 2006-09-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 370 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 2006-09-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939587897117Sfc1 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
370 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
754 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
256 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.9

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KFGF 170031
TORFGF
MNC051-170130-
/O.NEW.KFGF.TO.W.0043.060917T0031Z-060917T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
731 PM CDT SAT SEP 16 2006

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL GRANT COUNTY IN WEST CENTRAL MINNESOTA

* UNTIL 830 PM CDT

* AT 729 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
  THUNDERSTORM WITH STRONG ROTATION 3 MILES NORTHWEST OF NORCROSS...
  OR 29 MILES SOUTH OF FERGUS FALLS...MOVING TO THE EAST AT 45 MPH.

* THE TORNADO WILL BE ABOUT...
  7 MILES SOUTH OF WENDELL AT 745 PM CDT
  ELBOW LAKE AT 750 PM CDT
  ERDAHL AT 800 PM CDT

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT SUNDAY MORNING FOR
WEST CENTRAL MINNESOTA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
100 AM CDT SUNDAY MORNING FOR NORTHWESTERN MINNESOTA AND EASTERN
NORTH DAKOTA.

LAT...LON 4603 9625 4581 9624 4590 9579 4609 9578

$$

JCA
2 follow-up statements
000 
WWUS53 KFGF 170052
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
752 PM CDT SAT SEP 16 2006

MNC051-170130-
/O.CON.KFGF.TO.W.0043.000000T0000Z-060917T0130Z/
GRANT MN-
752 PM CDT SAT SEP 16 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
NORTHEASTERN GRANT COUNTY...

AT 750 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE 
THUNDERSTORM WITH STRONG ROTATION. THE STRONG ROTATION WAS LOCATED 
3 MILES NORTHEAST OF ELBOW LAKE...OR 18 MILES SOUTH OF FERGUS 
FALLS...MOVING TO THE NORTHEAST AT 35 MPH.

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT SUNDAY MORNING FOR
WEST CENTRAL MINNESOTA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
100 AM CDT SUNDAY MORNING FOR NORTHWESTERN MINNESOTA AND EASTERN
NORTH DAKOTA.

LAT...LON 4609 9602 4597 9599 4600 9578 4609 9578

$$

JCA
000 
WWUS53 KFGF 170122
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
821 PM CDT SAT SEP 16 2006

MNC051-170131-
/O.EXP.KFGF.TO.W.0043.000000T0000Z-060917T0130Z/
GRANT MN-
821 PM CDT SAT SEP 16 2006

...THE TORNADO WARNING FOR NORTHEASTERN GRANT COUNTY WILL EXPIRE AT
830 PM CDT...

AT 821 PM CDT...THE STORM WITH STRONG ROTATION HAS MOVED OUT OF 
NORTHEASTERN GRANT COUNTY. SO THE WARNING WILL BE ALLOWED TO EXPIRE 
AT 830 PM CDT.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT SUNDAY MORNING FOR
WEST CENTRAL MINNESOTA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
100 AM CDT SUNDAY MORNING FOR NORTHWESTERN MINNESOTA AND EASTERN
NORTH DAKOTA.

LAT...LON 4609 9602 4597 9599 4600 9578 4609 9578

$$

JCA

Nearby

Tornado Warnings in Minnesota, 2006Every tornado warning in 2006Tornadoes in 2006

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.