Alert archive / North Dakota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 13, NWS Bismarck, ND

May 22, 2012Divide County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at May 22, 2012, 4:07 PM CDT for Divide County, North Dakota. It was in force for 53 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 22, 2012, 4:07 PM CDT (21:07 UTC)
Expired: May 22, 2012, 5:00 PM CDT
In force: 53 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Divide County, ND

What was reported inside it

Time	Report	Where	Remark
May 22, 4:55 PM CDT	TSTM WND DMG	Fortuna, ND	4 TO 6 INCH DIAMETER BRANCHES BROKEN OFF

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 22, 4:03 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 9.1 hours before the alert went out and 234 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: 1517 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: 367 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.

240 
WUUS53 KBIS 222107
SVRBIS
NDC023-222200-
/O.NEW.KBIS.SV.W.0013.120522T2107Z-120522T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
407 PM CDT TUE MAY 22 2012

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN DIVIDE COUNTY IN NORTHWEST NORTH DAKOTA

* UNTIL 500 PM CDT

* AT 404 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 6 MILES
  SOUTHWEST OF COMERTOWN...OR 48 MILES WEST OF CROSBY...AND MOVING
  EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WRITING ROCK STATE HISTORICAL SITE...ALKABO...FORTUNA AND AMBROSE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN BISMARCK AT
701-223-4582.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT TUESDAY EVENING
FOR NORTH DAKOTA.

LAT...LON 4901 10335 4895 10335 4895 10333 4874 10333
      4871 10406 4900 10406 4901 10400
TIME...MOT...LOC 2106Z 256DEG 30KT 4884 10431
WIND...HAIL 60MPH 1.00IN

$$

SCHECK/AYD

3 follow-up statements

141 
WWUS53 KBIS 222118
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
418 PM CDT TUE MAY 22 2012

NDC023-222200-
/O.CON.KBIS.SV.W.0013.000000T0000Z-120522T2200Z/
DIVIDE ND-
418 PM CDT TUE MAY 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
DIVIDE COUNTY UNTIL 500 PM CDT...

AT 413 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR COMERTOWN...OR 43 MILES WEST OF CROSBY...
MOVING NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  ALKABO...FORTUNA AND AMBROSE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN BISMARCK AT
701-223-4582.

&&

LAT...LON 4901 10335 4895 10335 4895 10333 4884 10333
      4879 10406 4900 10406 4901 10400
TIME...MOT...LOC 2118Z 247DEG 27KT 4890 10419
WIND...HAIL <50MPH 1.00IN

$$

SCHECK/AYD

733 
WWUS53 KBIS 222138
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
438 PM CDT TUE MAY 22 2012

NDC023-222200-
/O.CON.KBIS.SV.W.0013.000000T0000Z-120522T2200Z/
DIVIDE ND-
438 PM CDT TUE MAY 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
DIVIDE COUNTY UNTIL 500 PM CDT...

AT 436 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 8 MILES NORTHWEST OF ALKABO...OR 32 MILES WEST OF
CROSBY...MOVING NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  ALKABO...FORTUNA AND AMBROSE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN BISMARCK AT
701-223-4582.

&&

LAT...LON 4901 10344 4884 10343 4883 10406 4900 10406
      4901 10400
TIME...MOT...LOC 2138Z 247DEG 27KT 4896 10398
WIND...HAIL <50MPH 1.00IN

$$

SCHECK/AYD

786 
WWUS53 KBIS 222143
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
443 PM CDT TUE MAY 22 2012

NDC023-222200-
/O.CON.KBIS.SV.W.0013.000000T0000Z-120522T2200Z/
DIVIDE ND-
443 PM CDT TUE MAY 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
DIVIDE COUNTY UNTIL 500 PM CDT...

AT 440 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 
CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DESTRUCTIVE WINDS IN 
EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 8 MILES NORTHWEST OF 
ALKABO...OR 30 MILES WEST OF CROSBY...MOVING NORTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  FORTUNA AND AMBROSE.

AT 500 PM CDT...400 PM MDT...A WIND GUST TO 78 MPH WAS REPORTED 
NORTHEAST OF PLENTYWOOD MONTANA WITH THIS STORM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN BISMARCK AT
701-223-4582.

&&

LAT...LON 4901 10344 4884 10343 4883 10406 4900 10406
      4901 10400
TIME...MOT...LOC 2141Z 247DEG 27KT 4897 10395
WIND...HAIL 70MPH 1.00IN

$$

SCHECK/AYD

The office that day

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

Issued	Product	Office	Counties	Lasted
May 21, 7:33 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Oliver	42 min
May 21, 8:41 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	64 min
May 22, 4:57 PM CDT	Severe Thunderstorm Warning	BIS	Divide	63 min
May 22, 6:03 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail, Renville, Ward	57 min
May 22, 6:16 PM CDT	Tornado Warning	BIS	Mountrail	29 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2012 Every severe thunderstorm warning in 2012

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.