Alert archive / North Dakota / Tornado Warnings in 2008

Tornado Warning 7, NWS Bismarck, ND

May 24, 2008McLean County, Oliver County, North Dakota

NWS Bismarck, ND issued this tornado warning at May 24, 2008, 8:50 PM CDT for McLean County, Oliver County, North Dakota. It was in force for 25 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: May 24, 2008, 8:50 PM CDT (01:50 UTC)
Expired: May 24, 2008, 9:15 PM CDT
In force: 25 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon

Counties McLean County, ND, Oliver County, ND

The radar

The Bismarck radar (KBIS), 71 km from the middle of the area, began a volume at 01:51 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
May 24, 6:24 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.8 hours before the alert went out and 74 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: 145 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 672 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 155 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KBIS 250150
TORBIS
NDC055-065-250215-
/O.NEW.KBIS.TO.W.0007.080525T0150Z-080525T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
850 PM CDT SAT MAY 24 2008

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL MCLEAN COUNTY IN SOUTH CENTRAL NORTH DAKOTA...
  NORTH CENTRAL OLIVER COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 915 PM CDT

* AT 847 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR CENTER...OR
  34 MILES NORTHWEST OF BISMARCK...MOVING NORTH AT 37 MPH. A FUNNEL  
  CLOUD WAS REPORTED NEAR CENETER AT 845 PM CDT.

* THE TORNADO WILL BE NEAR...
  FORT CLARK BY 855 PM CDT...
  6 MILES WEST OF FALKIRK BY 910 PM CDT...
  UNDERWOOD BY 915 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT SUNDAY MORNING FOR
SOUTHERN NORTH DAKOTA.

LAT...LON 4725 10141 4725 10125 4729 10130 4729 10133
      4733 10137 4738 10138 4750 10135 4744 10099
      4708 10119 4712 10145
TIME...MOT...LOC 0150Z 191DEG 32KT 4719 10129

$$

PJA

1 follow-up statement

000 
WWUS53 KBIS 250203
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
903 PM CDT SAT MAY 24 2008

NDC055-065-250215-
/O.CON.KBIS.TO.W.0007.000000T0000Z-080525T0215Z/
MCLEAN ND-OLIVER ND-
903 PM CDT SAT MAY 24 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR NORTH
CENTRAL OLIVER AND SOUTH CENTRAL MCLEAN COUNTIES...

AT 900 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR FORT CLARK...OR 
40 MILES NORTHWEST OF BISMARCK...MOVING NORTH AT 37 MPH.

THE TORNADO WILL BE NEAR...
  7 MILES WEST OF FALKIRK BY 910 PM CDT...
  UNDERWOOD BY 915 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 ALWAYS 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT SUNDAY MORNING FOR
SOUTHERN NORTH DAKOTA.

LAT...LON 4750 10135 4744 10099 4721 10112 4725 10141
      4725 10125 4729 10130 4729 10133 4733 10137
      4738 10138
TIME...MOT...LOC 0203Z 191DEG 32KT 4730 10126

$$

PJA

The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 7:14 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	61 min
May 24, 7:30 PM CDT	Tornado Warning	BIS	Dickey	45 min
May 24, 7:46 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	44 min
May 24, 7:58 PM CDT	Tornado Warning	BIS	Dickey, LaMoure	32 min
May 24, 8:03 PM CDT	Tornado Warning	BIS	Morton	27 min
May 24, 8:11 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	35 min
May 24, 8:15 PM CDT	Tornado Warning	BIS	Morton, Oliver	30 min
May 24, 8:24 PM CDT	Severe Thunderstorm Warning	BIS	Morton	51 min
May 24, 8:26 PM CDT	Tornado Warning	BIS	Burleigh, Morton, Oliver	34 min
May 24, 8:33 PM CDT	Severe Thunderstorm Warning	BIS	Morton	42 min
May 24, 8:33 PM CDT	Severe Thunderstorm Warning	BIS	Morton	42 min
May 24, 8:44 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	61 min
May 24, 8:54 PM CDT	Tornado Warning	BIS	McLean, Mercer, Oliver	36 min
May 24, 9:41 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh	49 min
May 24, 9:44 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh	46 min

Nearby

Tornado Warnings in North Dakota, 2008 Every tornado warning in 2008 Tornadoes in 2008

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.