Alert archive / North Dakota / Tornado Warnings in 2009

Tornado Warning 21, NWS Bismarck, ND

June 26, 2009Grant County, Hettinger County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jun 26, 2009, 5:22 PM MDT for Grant County, Hettinger County, North Dakota. It was in force for 23 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: Jun 26, 2009, 5:22 PM MDT (23:22 UTC)
Expired: Jun 26, 2009, 5:45 PM MDT
In force: 23 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon

Counties Grant County, ND, Hettinger County, ND

The radar

The Bismarck radar (KBIS), 110 km from the middle of the area, began a volume at 23:24 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
Jun 26, 1:53 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.4 hours before the alert went out and 114 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: 783 J/kg
Mixed-layer CIN: -269 J/kg
Mixed-layer LCL: 1257 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 159 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KBIS 262322
TORBIS
NDC037-041-262345-
/O.NEW.KBIS.TO.W.0021.090626T2322Z-090626T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
522 PM MDT FRI JUN 26 2009

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL GRANT COUNTY IN SOUTH CENTRAL NORTH DAKOTA...
  SOUTHEASTERN HETTINGER COUNTY IN SOUTHWEST NORTH DAKOTA...

* UNTIL 545 PM MDT

* AT 519 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR BENTLEY...OR 23 MILES NORTH OF LEMMON...AND
  MOVING NORTHEAST AT 15 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
  BENTLEY AROUND 530 PM MDT.
  NEW LEIPZIG AND ELGIN AROUND 545 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO THE TORNADO...THIS STORM IS EXPECTED TO PRODUCE LARGE
DAMAGING HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS WELL AWAY FROM THE
STORM CENTER.

&&

LAT...LON 4620 10200 4620 10201 4620 10213 4633 10230
      4657 10192 4634 10163 4615 10200
TIME...MOT...LOC 2321Z 229DEG 13KT 4626 10206

$$

SIMOSKO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 8:05 PM MDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	55 min
Jun 26, 12:09 AM MDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail, Williams	66 min
Jun 26, 3:25 AM MDT	Flash Flood Watch	BIS	Burleigh, Dickey, Emmons, Foster, Grant, Kidder and 8 more	24 hr
Jun 26, 1:39 PM MDT	Severe Thunderstorm Warning	BIS	Rolette	32 min
Jun 26, 3:48 PM MDT	Tornado Warning	BIS	Sheridan, Wells	27 min
Jun 26, 4:00 PM MDT	Severe Thunderstorm Warning	BIS	Hettinger, Slope, Stark	60 min
Jun 26, 4:16 PM MDT	Tornado Warning	BIS	Pierce, Sheridan, Wells	29 min
Jun 26, 4:21 PM MDT	Tornado Warning	BIS	Wells	24 min
Jun 26, 4:26 PM MDT	Tornado Warning	BIS	Pierce, Sheridan, Wells	34 min
Jun 26, 4:41 PM MDT	Severe Thunderstorm Warning	BIS	Dunn	34 min
Jun 26, 4:47 PM MDT	Severe Thunderstorm Warning	BIS	McLean, Mercer	58 min
Jun 26, 4:51 PM MDT	Tornado Warning	BIS	McLean	24 min
Jun 26, 5:05 PM MDT	Tornado Warning	BIS	Adams, Grant, Hettinger	25 min
Jun 26, 5:13 PM MDT	Tornado Warning	BIS	McLean	32 min
Jun 26, 5:22 PM MDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer	53 min
Jun 26, 5:23 PM MDT	Tornado Warning	BIS	Mercer, Oliver	37 min
Jun 26, 5:42 PM MDT	Tornado Warning	BIS	Grant	33 min
Jun 26, 5:42 PM MDT	Tornado Warning	BIS	McLean, Sheridan	48 min

Nearby

Tornado Warnings in North Dakota, 2009 Every tornado warning in 2009 Tornadoes in 2009

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.