Alert archive / North Dakota / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 21, NWS Bismarck, ND

May 25, 2013Adams County, Grant County, Sioux County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at May 25, 2013, 4:44 PM MDT for Adams County, Grant County, Sioux County, North Dakota. It was in force for 46 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 25, 2013, 4:44 PM MDT (22:44 UTC)
Expired: May 25, 2013, 5:30 PM MDT
In force: 46 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Adams County, ND, Grant County, ND, Sioux County, ND

The radar

The Bismarck radar (KBIS), 140 km from the middle of the area, began a volume at 22:46 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 25, 1:52 PM MDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 10.7 hours before the alert went out and 143 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: 700 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 69 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

671 
WUUS53 KBIS 252244
SVRBIS
NDC001-037-085-252330-
/O.NEW.KBIS.SV.W.0021.130525T2244Z-130525T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
444 PM MDT SAT MAY 25 2013

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN ADAMS COUNTY IN SOUTHWEST NORTH DAKOTA...
  SOUTHWESTERN GRANT COUNTY IN SOUTH CENTRAL NORTH DAKOTA...
  SOUTHWESTERN SIOUX COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 530 PM MDT

* AT 441 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR NORTH       
  LEMMON...AND MOVING EAST AT 15 MPH.

  HAZARD...HALF DOLLAR SIZE HAIL AND 60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...HAIL DAMAGE TO VEHICLES AND CROPS IS EXPECTED. EXPECT WIND
           DAMAGE TO ROOFS...SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE...
  NORTH LEMMON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL UP TO THE SIZE OF 
GOLFBALLS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY 
FROM WINDOWS.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4594 10268 4596 10273 4611 10239 4616 10213
      4613 10180 4597 10165 4594 10171
TIME...MOT...LOC 2242Z 266DEG 14KT 4600 10221

HAIL...1.25IN
WIND...60MPH

$$

NH/TWH

2 follow-up statements

175 
WWUS53 KBIS 252305
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
605 PM CDT SAT MAY 25 2013

NDC001-037-085-252330-
/O.CON.KBIS.SV.W.0021.000000T0000Z-130525T2330Z/
ADAMS ND-GRANT ND-SIOUX ND-
505 PM MDT SAT MAY 25 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
SIOUX...SOUTHWESTERN GRANT AND SOUTHEASTERN ADAMS COUNTIES UNTIL 530
PM MDT...

AT 502 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED 5 MILES NORTHEAST 
OF LEMMON SOUTH DAKOTA...MOVING EAST AT 15 MPH.

HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES AND CROPS IS EXPECTED. EXPECT WIND
         DAMAGE TO ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME SOUTHEASTERN ADAMS...EXTREME
  SOUTHWESTERN SIOUX AND SOUTHWESTERN GRANT COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4594 10264 4597 10264 4611 10239 4616 10213
      4613 10180 4597 10165 4594 10171
TIME...MOT...LOC 2304Z 266DEG 14KT 4600 10205

HAIL...1.00IN
WIND...60MPH

$$
TWH

716 
WWUS53 KBIS 252330
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
630 PM CDT SAT MAY 25 2013

NDC001-037-085-252338-
/O.EXP.KBIS.SV.W.0021.000000T0000Z-130525T2330Z/
ADAMS ND-GRANT ND-SIOUX ND-
530 PM MDT SAT MAY 25 2013

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SIOUX...
SOUTHWESTERN GRANT AND SOUTHEASTERN ADAMS COUNTIES WILL EXPIRE AT 630
PM CDT/530 PM MDT/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED. SMALL 
HAIL...HEAVY RAIN...AND FREQUENT DEADLY LIGHTNING CAN STILL BE 
EXPECTED.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 10 PM MDT.

LAT...LON 4594 10264 4597 10264 4611 10239 4616 10213
      4613 10180 4597 10165 4594 10171
TIME...MOT...LOC 2328Z 266DEG 14KT 4601 10192

$$

NH/TWH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 8:08 AM MDT	Severe Thunderstorm Warning	BIS	McKenzie	52 min
May 25, 1:34 PM MDT	Severe Thunderstorm Warning	BIS	Stark	41 min
May 25, 2:34 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	41 min
May 25, 2:55 PM MDT	Severe Thunderstorm Warning	BIS	Adams	20 min
May 25, 3:12 PM MDT	Severe Thunderstorm Warning	BIS	Adams	48 min
May 25, 4:00 PM MDT	Severe Thunderstorm Warning	BIS	Adams	45 min
May 25, 4:32 PM MDT	Severe Thunderstorm Warning	BIS	Grant	43 min
May 25, 5:16 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Morton	44 min
May 25, 5:44 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Sioux	46 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2013 Every severe thunderstorm warning in 2013

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.