Alert archive / North Dakota / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 21, NWS Bismarck, ND

May 27, 2006Morton County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at May 27, 2006, 6:59 PM CDT for Morton County, North Dakota. It was in force for 61 min. 1 report 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: May 27, 2006, 6:59 PM CDT (23:59 UTC)
Expired: May 27, 2006, 8:00 PM CDT
In force: 61 min
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

County Morton County, ND

The radar

The Bismarck radar (KBIS), 27 km from the middle of the area, began a volume at 00:02 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
May 27, 7:19 PM CDT	HAIL 1	5 Nw Mandan, ND

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
May 27, 4:46 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 12.0 hours before the alert went out and 32 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: 521 J/kg
Mixed-layer CIN: -598 J/kg
Mixed-layer LCL: 1311 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KBIS 272359
SVRBIS
NDC059-280100-
/O.NEW.KBIS.SV.W.0021.060527T2359Z-060528T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
659 PM CDT SAT MAY 27 2006

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL MORTON COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 800 PM CDT

* AT 653 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED OVER
  CENTRAL MORTON COUNTY...OR ABOUT 14 MILES WEST OF BISMARCK...AND
  MOVING NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL NORTHERN MORTON COUNTY AROUND 710 PM CDT...
  RURAL NORTHEASTERN MORTON COUNTY AROUND 720 PM CDT...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT LIGHTNING IS
OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING CAN BE
A KILLER. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH
TO BE STRUCK BY LIGHTNING.

LAT...LON 4689 10117 4696 10117 4698 10115 4698 10093
      4686 10090 4676 10095 4678 10112 4679 10113
      4679 10120

$$

JC

3 follow-up statements

000 
WWUS53 KBIS 280008
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
707 PM CDT SAT MAY 27 2006

NDC059-280100-
/O.CON.KBIS.SV.W.0021.000000T0000Z-060528T0100Z/
MORTON ND-
707 PM CDT SAT MAY 27 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT 
FOR SOUTHEASTERN MORTON COUNTY...

AT 602 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL.  THIS STORM WAS LOCATED OVER EXTREME SOUTHEASTERN MORTON
COUNTY...OR ABOUT 27 MILES SOUTH OF BISMARCK...MOVING NORTH AT 25
MPH.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND
AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SUNDAY
MORNING(1100 PM MDT SATURDAY EVENING) FOR EASTERN NORTH DAKOTA.

LAT...LON 4689 10117 4696 10117 4698 10115 4698 10093
      4686 10090 4676 10095 4678 10112 4679 10113
      4679 10120

$$

JC

000 
WWUS53 KBIS 280027
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
726 PM CDT SAT MAY 27 2006

NDC059-280100-
/O.CON.KBIS.SV.W.0021.000000T0000Z-060528T0100Z/
MORTON ND-
726 PM CDT SAT MAY 27 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT 
FOR SOUTHEASTERN MORTON COUNTY...

AT 619 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.
 THIS STORM WAS LOCATED OVER EXTREME EAST CENTRAL MORTON COUNTY...OR
ABOUT 17 MILES SOUTH OF BISMARCK...MOVING NORTH AT 30 MPH.

THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY.

IN ADDITION TO HAIL...FREQUENT LIGHTNING IS OCCURRING WITH THIS 
STORM. MOVE INDOORS IMMEDIATELY LIGHTNING CAN BE A KILLER. 
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE 
STRUCK BY LIGHTNING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SUNDAY
MORNING(1100 PM MDT SATURDAY EVENING) FOR EASTERN NORTH DAKOTA.

LAT...LON 4689 10117 4696 10117 4698 10115 4698 10093
      4686 10090 4676 10095 4678 10112 4679 10113
      4679 10120

$$

JC

000 
WWUS53 KBIS 280046
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
746 PM CDT SAT MAY 27 2006

NDC059-280100-
/O.CON.KBIS.SV.W.0021.000000T0000Z-060528T0100Z/
MORTON ND-
746 PM CDT SAT MAY 27 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT 
FOR CENTRAL MORTON COUNTY...

AT 640 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.
 THIS STORM WAS LOCATED OVER CENTRAL MORTON COUNTY...OR ABOUT 24
MILES SOUTHWEST OF BISMARCK...MOVING NORTH AT 20 MPH.

THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY.

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SUNDAY
MORNING(1100 PM MDT SATURDAY EVENING) FOR EASTERN NORTH DAKOTA.

LAT...LON 4689 10117 4696 10117 4698 10115 4698 10093
      4686 10090 4676 10095 4678 10112 4679 10113
      4679 10120

$$

JC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 7:14 PM CDT	Severe Thunderstorm Warning	BIS	Emmons	61 min
May 26, 8:06 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, Logan	54 min
May 26, 9:46 PM CDT	Severe Thunderstorm Warning	BIS	Logan	59 min
May 26, 10:52 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	53 min
May 26, 11:21 PM CDT	Severe Thunderstorm Warning	BIS	Kidder	54 min
May 27, 9:54 AM CDT	Severe Thunderstorm Warning	BIS	Pierce	51 min
May 27, 2:55 PM CDT	Flash Flood Watch	BIS	Foster, Pierce, Rolette, Wells	13 hr
May 27, 6:15 PM CDT	Severe Thunderstorm Warning	BIS	Morton	45 min
May 27, 6:51 PM CDT	Severe Thunderstorm Warning	BIS	Pierce, Rolette	54 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2006 Every severe thunderstorm warning 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.