Alert archive / North Dakota / Tornado Warnings in 2006

Tornado Warning 21, NWS Bismarck, ND

August 20, 2006Dickey County, North Dakota

NWS Bismarck, ND issued this tornado warning at Aug 20, 2006, 5:39 PM CDT for Dickey County, North Dakota. It was in force for 36 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: Aug 20, 2006, 5:39 PM CDT (22:39 UTC)
Expired: Aug 20, 2006, 6:15 PM CDT
In force: 36 min
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

County Dickey County, ND

The radar

The Aberdeen radar (KABR), 74 km from the middle of the area, began a volume at 22:40 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
Aug 20, 5:50 PM CDT	TORNADO	1 N Monango, ND	TORNADO ON GROUND
Aug 20, 6:09 PM CDT	HAIL 1	Monango, ND
Aug 20, 6:16 PM CDT	HAIL 0.88	Fullerton, ND	NICKEL SIZE HAIL AND FUNNEL CLOUD

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
Aug 20, 4:50 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 10.7 hours before the alert went out and 136 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1164 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 71 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 KBIS 202239
TORBIS
NDC021-202315-
/O.NEW.KBIS.TO.W.0021.060820T2239Z-060820T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
539 PM CDT SUN AUG 20 2006

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  DICKEY COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 615 PM CDT

* AT 535 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  MERRICOURT...OR ABOUT 46 MILES SOUTH OF JAMESTOWN...MOVING
  SOUTHEAST AT 35 MPH.

* THE TORNADO WILL BE NEAR...
  MONANGO AROUND 550 PM CDT...
  FULLERTON AROUND 600 PM CDT...
  7 MILES NORTHEAST OF ELLENDALE AROUND 605 PM CDT...
  GUELPH AROUND 615 PM CDT...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE
HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
SUNDAY EVENING FOR SOUTHEASTERN NORTH DAKOTA.

LAT...LON 4596 9870 4622 9898 4628 9888 4628 9851
      4627 9846 4613 9806 4606 9801 4595 9802

$$

JC

2 follow-up statements

000 
WWUS53 KBIS 202253
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
553 PM CDT SUN AUG 20 2006

NDC021-202315-
/O.CON.KBIS.TO.W.0021.000000T0000Z-060820T2315Z/
DICKEY ND-
553 PM CDT SUN AUG 20 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR DICKEY
COUNTY...

AT 550 PM CDT...SKYWARN SPOTTERS REPORTED A TORNADO.  THIS TORNADO
WAS LOCATED NEAR MONANGO...OR ABOUT 48 MILES SOUTH OF JAMESTOWN...
MOVING SOUTHEAST AT 35 MPH.

THE TORNADO WILL BE NEAR...
  FULLERTON AROUND 605 PM CDT...
  9 MILES NORTHEAST OF ELLENDALE AROUND 610 PM CDT...
  9 MILES NORTHWEST OF GUELPH AROUND 615 PM CDT...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
SUNDAY EVENING FOR SOUTHEASTERN NORTH DAKOTA.

LAT...LON 4596 9870 4622 9883 4628 9888 4628 9851
      4627 9846 4613 9806 4606 9801 4595 9802

$$

JC

000 
WWUS53 KBIS 202314
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
614 PM CDT SUN AUG 20 2006

NDC021-202324-
/O.EXP.KBIS.TO.W.0021.000000T0000Z-060820T2315Z/
DICKEY ND-
614 PM CDT SUN AUG 20 2006

...THE TORNADO WARNING FOR DICKEY COUNTY EXPIRES AT 615 PM CDT...

THE TORNADIC THUNDERSTORM HAS WEAKENED AND NO LONGER POSES A
SIGNIFICANT THREAT.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
SUNDAY EVENING FOR SOUTHEASTERN NORTH DAKOTA.

LAT...LON 4596 9870 4622 9883 4628 9888 4628 9851
      4627 9846 4613 9806 4606 9801 4595 9802

$$

JC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 20, 10:00 AM CDT	Severe Thunderstorm Warning	BIS	Emmons	60 min
Aug 20, 12:57 PM CDT	Severe Thunderstorm Warning	BIS	Pierce	30 min
Aug 20, 3:39 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, Stutsman	66 min
Aug 20, 4:24 PM CDT	Severe Thunderstorm Warning	BIS	Logan	66 min
Aug 20, 4:42 PM CDT	Tornado Warning	BIS	Logan	21 min
Aug 20, 4:51 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	54 min
Aug 20, 5:13 PM CDT	Tornado Warning	BIS	LaMoure	32 min
Aug 20, 5:18 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	57 min
Aug 20, 5:44 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	36 min
Aug 20, 6:10 PM CDT	Severe Thunderstorm Warning	BIS	McIntosh	65 min
Aug 20, 6:16 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	59 min
Aug 20, 6:29 PM CDT	Tornado Warning	BIS	Dickey	31 min
Aug 20, 6:40 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	38 min

Nearby

Tornado Warnings in North Dakota, 2006 Every tornado warning in 2006 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.