Alert archive / Minnesota / Tornado Warnings in 2005

Tornado Warning 31, NWS Grand Forks, ND

June 20, 2005Otter Tail County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jun 20, 2005, 10:35 AM CDT for Otter Tail County, Minnesota. It was in force for 55 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 20, 2005, 10:35 AM CDT (15:35 UTC)
Expired: Jun 20, 2005, 11:30 AM CDT
In force: 55 min
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

County Otter Tail County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 175 km from the middle of the area, began a volume at 15:36 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 20, 10:35 AM CDT	TSTM WND DMG	6 Wsw Ottertail, MN	UPROOTED TREES NEAR OTTERTAIL LAKE
Jun 20, 10:40 AM CDT	FUNNEL CLOUD	5 S Perham, MN	FUNNEL CLOUD DIPPING UP AND DOWN
Jun 20, 10:44 AM CDT	TSTM WND DMG	4 Wnw Ottertail, MN	LARGE TREES UPROOTED AND ROOF TORN OFF HOUSE

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

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 3.6 hours before the alert went out and 239 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: 93 J/kg
Mixed-layer CIN: -433 J/kg
Mixed-layer LCL: 1305 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 156 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.

000 
WFUS53 KFGF 201535
TORFGF
MNC111-201630-
/O.NEW.KFGF.TO.W.0031.050620T1535Z-050620T1630Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
1035 AM CDT MON JUN 20 2005

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA

* UNTIL 1130 AM CDT

* AT 1031 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
  THUNDERSTORM WITH STRONG ROTATION OVER BATTLE LAKE...OR 16 MILES
  EAST OF FERGUS FALLS...MOVING TO THE EAST AT 45 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  VINING AT 1045 AM
  HENNING AT 1050 AM
  ALMORA...8 MILES NORTH OF PARKERS PRAIRIE AND 8 MILES SOUTH OF DEER
  CREEK AT 1055 AM
  WRIGHTSTOWN AT 1105 AM

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

LAT...LON 4670 9592 4612 9590 4613 9517 4669 9519

$$

JDS

2 follow-up statements

000 
WWUS53 KFGF 201546
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
1045 AM CDT MON JUN 20 2005

MNC111-201630-
/O.CON.KFGF.TO.W.0031.000000T0000Z-050620T1630Z/
OTTER TAIL MN-
1045 AM CDT MON JUN 20 2005

...A TORNADO WARNING CONTINUES UNTIL 1130 AM CDT FOR EASTERN OTTER
TAIL COUNTY...

AT 1040 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM WITH STRONG ROTATION.  THE TORNADO WAS LOCATED 2 MILES
NORTHWEST OF VINING...OR 24 MILES EAST OF FERGUS FALLS...MOVING TO 
THE EAST AT 50 MPH. FUNNELS REPORTED 4 TO 5 MILES SOUTH OF PERHAM.  

THE TORNADO WILL BE NEAR...
  HENNING BY 1050 AM CDT...
  ALMORA...7 MILES SOUTH OF DEER CREEK AND 9 MILES NORTH OF PARKERS
  PRAIRIE BY 1055 AM CDT...
  WRIGHTSTOWN BY 1105 AM CDT...

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

LAT...LON 4670 9592 4612 9590 4613 9517 4669 9519

$$

JDS

000 
WWUS53 KFGF 201627
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
1126 AM CDT MON JUN 20 2005

MNC111-201636-
/O.EXP.KFGF.TO.W.0031.000000T0000Z-050620T1630Z/
OTTER TAIL MN-
1126 AM CDT MON JUN 20 2005

...THE TORNADO WARNING FOR EASTERN OTTER TAIL COUNTY EXPIRED AT 1130
AM CDT...

AT 1126 AM CDT...THE TORNADO IN EASTERN OTTER TAIL COUNTY HAS MOVED
OUT OF THE COUNTY. SO THE WARNING WAS ALLOWED TO EXPIRE AT 1130 AM
CDT.

LAT...LON 4670 9592 4612 9590 4613 9517 4669 9519

$$

JDS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 8:22 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	53 min
Jun 19, 10:32 PM CDT	Flash Flood Warning	FGF	Beltrami	10 hr
Jun 20, 12:49 AM CDT	Severe Thunderstorm Warning	FGF	Beltrami	41 min
Jun 20, 4:46 AM CDT	Severe Thunderstorm Warning	FGF	Hubbard	16 min
Jun 20, 9:22 AM CDT	Severe Thunderstorm Warning	FGF	Clay	31 min
Jun 20, 9:25 AM CDT	Severe Thunderstorm Warning	FGF	Wilkin	65 min
Jun 20, 10:04 AM CDT	Severe Thunderstorm Warning	FGF	Otter Tail	56 min
Jun 20, 10:09 AM CDT	Severe Thunderstorm Warning	FGF	Grant	66 min
Jun 20, 10:19 AM CDT	Tornado Warning	FGF	Grant	56 min
Jun 20, 10:43 AM CDT	Severe Thunderstorm Warning	FGF	Wadena	62 min

Nearby

Tornado Warnings in Minnesota, 2005 Every tornado warning in 2005 Tornadoes in 2005

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.