Alert archive / North Dakota / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 32, NWS Bismarck, ND

June 12, 20114 counties in North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 12, 2011, 8:07 PM MDT for 4 counties in 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: Jun 12, 2011, 8:07 PM MDT (02:07 UTC)
Expired: Jun 12, 2011, 9:00 PM MDT
In force: 53 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 0.75 in
Wind: 80.0 mph

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

The radar

The Bismarck radar (KBIS), 114 km from the middle of the area, began a volume at 02:07 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
Jun 12, 8:30 PM MDT	TORNADO	8 Ssw Elgin, ND	EF2 TORNADO TOUCHED DOWN 8 MILES SOUTH-SOUTHWEST OF ELGIN AROUND 830 PM MDT AND MOVED NORTH-NORTHEAST. IT LIFTED 3 MILES SOUTH-SOUTHEAST OF ELGIN...AT AROUND 845 PM MDT. IT WAS ON THE GROUND FOR 15 MINUTES...AND COVERED A PATH LENGTH OF AROUND 6 MILES. THE TOR

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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 12, 5:28 PM MDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.1 hours before the alert went out and 118 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: 1764 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1108 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 227 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 9.5

Open this sounding in Storm Lab

The text

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

924 
WUUS53 KBIS 130207
SVRBIS
NDC001-037-041-085-130300-
/O.NEW.KBIS.SV.W.0032.110613T0207Z-110613T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
807 PM MDT SUN JUN 12 2011

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...
  SOUTHEASTERN HETTINGER COUNTY IN SOUTHWEST NORTH DAKOTA...
  SOUTHWESTERN SIOUX COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 900 PM MDT

* AT 802 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN
  EXCESS OF 80 MPH.  THIS STORM WAS LOCATED NEAR NORTH LEMMON...OR 5
  MILES NORTHEAST OF LEMMON...AND MOVING NORTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF
  SOUTHEASTERN ADAMS...SOUTHEASTERN HETTINGER...SOUTHWESTERN GRANT
  AND SOUTHWESTERN SIOUX COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS AN EXTREMELY DANGEROUS SITUATION WITH TORNADO LIKE WIND
SPEEDS EXPECTED. MOBILE HOMES AND HIGH PROFILE VEHICLES ARE
ESPECIALLY SUSCEPTIBLE TO WINDS OF THIS MAGNITUDE AND MAY BE
OVERTURNED. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL
TO CAUSE SERIOUS INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM MDT MONDAY MORNING FOR
NORTH DAKOTA.

LAT...LON 4594 10223 4632 10204 4645 10191 4629 10147
      4594 10176
TIME...MOT...LOC 0207Z 215DEG 32KT 4603 10205
WIND...HAIL 80MPH <.75IN

$$

ABELING

1 follow-up statement

029 
WWUS53 KBIS 130306
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1006 PM CDT SUN JUN 12 2011

NDC001-037-041-085-130317-
/O.EXP.KBIS.SV.W.0032.000000T0000Z-110613T0300Z/
ADAMS ND-GRANT ND-HETTINGER ND-SIOUX ND-
906 PM MDT SUN JUN 12 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SIOUX...EXTREME
SOUTHEASTERN HETTINGER...SOUTHWESTERN GRANT AND SOUTHEASTERN ADAMS
COUNTIES HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 2 AM CDT.

LAT...LON 4594 10223 4632 10204 4645 10191 4629 10147
      4594 10176
TIME...MOT...LOC 0207Z 215DEG 32KT 4602 10204

$$

KINNEY

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 12, 5:50 PM MDT, 2 hours 17 minutes earlier.

Area forecast discussion, Jun 12, 5:50 PM MDT, 2 hours 17 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
650 PM CDT SUN JUN 12 2011

.UPDATE...UPDATE FOR NEW TORNADO WATCH.

&&

.DISCUSSION...
CONVECTION CONTINUES TO DEVELOP AND WITH GOOD LOW LEVEL SOUTHEAST
FLOW AND DEW POINTS IN THE 60S KEEP STRONG CONVECTION TO CONTINUE
WEST AND CONTINUE TO DEVELOP CENTRAL PORTIONS.

&&

.AVIATION...
NEW TAF INCORPORATE CONVECTION IN MOST TAF SITES.

&&

.BIS WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH THROUGH MONDAY AFTERNOON FOR NDZ001>004-
009>012-017>022-031>035-040>044.

&&

SHORT TERM...HW
LONG TERM....HW
AVIATION...HW

Hazardous weather outlook, Jun 12, 2:20 PM MDT, 5 hours 47 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BISMARCK ND
320 PM CDT SUN JUN 12 2011

NDZ001>005-009>013-017>023-025-031>037-040>048-050-051-132030-
DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD-
MCHENRY-PIERCE-MCKENZIE-DUNN-MERCER-OLIVER-MCLEAN-SHERIDAN-WELLS-
FOSTER-GOLDEN VALLEY-BILLINGS-STARK-MORTON-BURLEIGH-KIDDER-
STUTSMAN-SLOPE-HETTINGER-GRANT-BOWMAN-ADAMS-SIOUX-EMMONS-LOGAN-
LA MOURE-MCINTOSH-DICKEY-
320 PM CDT SUN JUN 12 2011 /220 PM MDT SUN JUN 12 2011/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
NORTH DAKOTA...NORTHWEST NORTH DAKOTA...SOUTH CENTRAL NORTH
DAKOTA...SOUTHEAST NORTH DAKOTA AND SOUTHWEST NORTH DAKOTA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS TODAY AND TONIGHT. SOME STORMS
THIS AFTERNOON AND EVENING COULD BE SEVERE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A CHANCE OF THUNDERSTORMS THROUGH THIS WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

In the hours before

Local storm report, Jun 12, 7:38 PM MDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
838 PM CDT SUN JUN 12 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0825 PM     HAIL             NEW ENGLAND             46.54N 102.87W
06/12/2011  M1.00 INCH       HETTINGER          ND   CO-OP OBSERVER

            STILL GETTING PEA SIZE HAIL.

&&

SWICHE

Local storm report, Jun 12, 7:48 PM MDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
848 PM CDT SUN JUN 12 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0830 PM     HAIL             NEW SALEM               46.85N 101.41W
06/12/2011  M1.00 INCH       MORTON             ND   CO-OP OBSERVER

            PEA TO QUARTER SIZE HAIL... HEAVY RAIN

&&

LHUBER

Local storm report, Jun 12, 7:49 PM MDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
849 PM CDT SUN JUN 12 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0845 PM     TORNADO          10 NE NEW SALEM         46.95N 101.26W
06/12/2011                   MORTON             ND   PUBLIC

            STORM CHASER REPORTED TORNADO ON THE GROUND MOVING
            NORTHEAST.

&&

SWICHE

Local storm report, Jun 12, 7:58 PM MDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
858 PM CDT SUN JUN 12 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0849 PM     HEAVY RAIN       NEW ENGLAND             46.54N 102.87W
06/12/2011  M1.00 INCH       HETTINGER          ND   CO-OP OBSERVER

            1.0 INCH OF RAIN IN 55 MINS...

&&

LHUBER

Local storm report, Jun 12, 8:06 PM MDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
906 PM CDT SUN JUN 12 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 PM     TORNADO          1 NW SWEET BRIAR LAKE   46.87N 101.27W
06/12/2011                   MORTON             ND   TRAINED SPOTTER

            SPOTTER REPORTED A TORNADO WAS ON THE GROUND FOR 10 TO 15
            SECONDS.

&&

NHEINERT

Local storm report, Jun 12, 8:07 PM MDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
907 PM CDT SUN JUN 12 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0905 PM     FLASH FLOOD      5 N GLEN ULLIN          46.89N 101.83W
06/12/2011                   MORTON             ND   EMERGENCY MNGR

            1 FOOT OF WATER OVER WEST AND EAST BOUND LANES OF
            INTERSTATE 94 MILE MARKER 106... RELATED 3 CAR ACCIDENT
            WITH HEAVY RAIN AND HAIL.

&&

LHUBER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 6:07 PM MDT	Severe Thunderstorm Warning	BIS	Bowman, Slope	53 min
Jun 12, 6:08 PM MDT	Tornado Warning	BIS	Grant, Morton	22 min
Jun 12, 6:36 PM MDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver	39 min
Jun 12, 6:47 PM MDT	Severe Thunderstorm Warning	BIS	McLean, Mercer	43 min
Jun 12, 6:54 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Morton, Stark	51 min
Jun 12, 7:01 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger	44 min
Jun 12, 7:05 PM MDT	Severe Thunderstorm Warning	BIS	Morton, Oliver	28 min
Jun 12, 7:14 PM MDT	Severe Thunderstorm Warning	BIS	Morton, Oliver	28 min
Jun 12, 7:17 PM MDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver	28 min
Jun 12, 7:25 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	50 min
Jun 12, 7:25 PM MDT	Tornado Warning	BIS	Morton	35 min
Jun 12, 7:38 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	57 min
Jun 12, 7:40 PM MDT	Tornado Warning	BIS	Morton, Oliver	35 min
Jun 12, 7:46 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger	59 min
Jun 12, 7:56 PM MDT	Tornado Warning	BIS	Morton	34 min
Jun 12, 7:59 PM MDT	Severe Thunderstorm Warning	BIS	Hettinger	46 min
Jun 12, 8:09 PM MDT	Flash Flood Warning	BIS	Adams, Grant, Hettinger, Morton, Oliver, Sioux and 1 more	4 hr
Jun 12, 8:24 PM MDT	Tornado Warning	BIS	Morton, Oliver	36 min
Jun 12, 8:28 PM MDT	Flash Flood Warning	BIS	McLean, Mercer, Oliver	4 hr
Jun 12, 8:28 PM MDT	Tornado Warning	BIS	Grant	19 min
Jun 12, 8:39 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Morton	66 min
Jun 12, 9:02 PM MDT	Areal Flood Advisory	BIS	Adams, Dunn, Hettinger, McLean, Mercer, Oliver and 1 more	17 hr
Jun 12, 9:03 PM MDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Logan, McIntosh, Morton, Sioux	57 min
Jun 12, 9:09 PM MDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Morton, Oliver	41 min
Jun 12, 9:23 PM MDT	Areal Flood Advisory	BIS	Burleigh, Emmons, Grant, Morton, Sioux	8 hr
Jun 12, 10:04 PM MDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder, Sheridan, Wells	40 min
Jun 13, 12:18 AM MDT	Areal Flood Warning	BIS	Adams, Grant, Hettinger, Morton, Oliver, Stark	62 hr
Jun 13, 12:59 AM MDT	Areal Flood Advisory	BIS	Bottineau, Burke, McHenry, Mountrail, Pierce, Renville and 2 more	6 hr
Jun 13, 1:59 PM MDT	Areal Flood Warning	BIS	Burleigh, Emmons, McLean, Mercer, Morton, Oliver and 1 more	70 days

Nearby

Severe Thunderstorm Warnings in North Dakota, 2011 Every severe thunderstorm warning in 2011

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.