Alert archive / North Dakota / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 233, NWS Bismarck, ND

September 18, 2013Dickey County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Sep 18, 2013, 6:56 PM CDT for Dickey County, North Dakota. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 18, 2013, 6:56 PM CDT (23:56 UTC)
Expired: Sep 18, 2013, 8:00 PM CDT
In force: 64 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.75 in
Wind: 50.0 mph

County Dickey County, ND

The radar

The Aberdeen radar (KABR), 73 km from the middle of the area, began a volume at 23:55 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
Sep 18, 4:56 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.9 hours before the alert went out and 135 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: 1053 J/kg
Mixed-layer CIN: -233 J/kg
Mixed-layer LCL: 515 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

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 Sep 18, 6:05 PM CDT, 51 minutes earlier.

Area forecast discussion, Sep 18, 6:05 PM CDT, 51 minutes before

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Hazardous weather outlook, Sep 18, 6:24 PM CDT, 32 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BISMARCK ND
624 PM CDT WED SEP 18 2013

NDZ045>048-050-051-192330-
SIOUX-EMMONS-LOGAN-LA MOURE-MCINTOSH-DICKEY-
624 PM CDT WED SEP 18 2013

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

.DAY ONE...TONIGHT

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE AREA THROUGH
MIDNIGHT CDT. GO TO WWW.WEATHER.GOV/BIS FOR ADDITIONAL
INFORMATION.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SUNDAY NIGHT AND MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING.

NDZ001>005-009>013-017>023-025-031>037-040>044-192330-
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-
624 PM CDT WED SEP 18 2013 /524 PM MDT WED SEP 18 2013/

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...TONIGHT

SCATTERED THUNDERSTORMS ARE EXPECTED THROUGH TONIGHT. AN ISOLATED
SEVERE STORMS IS POSSIBLE...WITH THE MAIN THREATS OF QUARTER SIZE
HAIL AND ISOLATED WIND GUSTS AROUND 60 MPH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

ISOLATED THUNDERSTORMS ARE POSSIBLE THURSDAY...BUT WILL NOT BE
SEVERE. THERE IS ALSO A SLIGHT CHANCE OF THUNDERSTORMS SUNDAY AND
SUNDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE THROUGH THE EVENING...BUT NOT LIKELY.

TWH

In the hours before

Special weather statement, Sep 18, 5:50 PM CDT, 1 hour 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
550 PM CDT WED SEP 18 2013

NDZ051-182315-
DICKEY-
550 PM CDT WED SEP 18 2013

...STRONG THUNDERSTORM APPROACHING SOUTHEAST DICKEY COUNTY...

AT 548 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
RAPIDLY DEVELOPING THUNDERSTORM 8 MILES NORTHEAST OF FREDERICK...OR
73 MILES SOUTH OF JAMESTOWN...MOVING NORTHEAST AT 20 MPH.

PENNY SIZE HAIL...WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND
LIGHTNING...WILL ACCOMPANY THIS STORM.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  GUELPH...
  LUDDEN...
  OAKES...
  GLOVER...

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS
TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS
PASSED.

LAT...LON 4593 9800 4593 9854 4594 9854 4627 9814
      4621 9800 4617 9799 4596 9799
TIME...MOT...LOC 2249Z 221DEG 19KT 4588 9834

ABELING

Local storm report, Sep 18, 6:13 PM CDT, 43 minutes before

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Special weather statement, Sep 18, 6:32 PM CDT, 24 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 17, 7:24 PM CDT	Special Weather Statement	BIS	McKenzie	51 min
Sep 17, 9:54 PM CDT	Special Weather Statement	BIS	Bowman, Golden Valley, Slope	66 min
Sep 17, 10:35 PM CDT	Special Weather Statement	BIS	McKenzie	55 min
Sep 17, 11:39 PM CDT	Special Weather Statement	BIS	Stark	36 min
Sep 17, 11:42 PM CDT	Special Weather Statement	BIS	Williams	33 min
Sep 18, 12:19 AM CDT	Special Weather Statement	BIS	Divide	26 min
Sep 18, 12:45 AM CDT	Severe Thunderstorm Warning	BIS	Divide	45 min
Sep 18, 5:50 PM CDT	Special Weather Statement	BIS	Dickey	25 min
Sep 18, 5:56 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	64 min
Sep 18, 6:32 PM CDT	Special Weather Statement	BIS	Burke	58 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.