Alert archive / North Dakota / Special Weather Statements in 2021

Special Weather Statement, NWS Bismarck, ND

September 19, 2021Emmons County, North Dakota

NWS Bismarck, ND issued this special weather statement at Sep 19, 2021, 9:48 PM CDT for Emmons County, North Dakota. It was in force for 27 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: Sep 19, 2021, 9:48 PM CDT (02:48 UTC)
Expired: Sep 19, 2021, 10:15 PM CDT
In force: 27 min
Issued by: NWS Bismarck, ND
Hail: 0.50 in
Wind: 40

County Emmons County, ND

The radar

The Bismarck radar (KBIS), 86 km from the middle of the area, began a volume at 02:48 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 nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.8 hours before the alert went out and 83 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: 2996 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 324 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Sep 19, 9:47 PM CDT, 1 minute earlier.

Area forecast discussion, Sep 19, 9:47 PM CDT, 1 minute before

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Hazardous weather outlook, Sep 19, 6:32 PM CDT, 3 hours 16 minutes before

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In the hours before

Local storm report, Sep 19, 8:09 PM CDT, 1 hour 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
809 PM CDT SUN SEP 19 2021

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

0745 PM     NON-TSTM WND GST 1 NNW HETTINGER         46.02N 102.65W
09/19/2021  M52 MPH          ADAMS              ND   ASOS

            ASOS STATION KHEI HETTINGER AIRPORT.
            SUSTAINED WIND SPEED WAS 35 MPH.

&&

MH

Special weather statement, Sep 19, 9:48 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Bismarck ND
948 PM CDT Sun Sep 19 2021

NDZ046-200315-
Emmons ND-
948 PM CDT Sun Sep 19 2021

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHEASTERN EMMONS
COUNTY THROUGH 1015 PM CDT...

At 947 PM CDT, a strong thunderstorm was located near Strasburg, or
11 miles south of Linton, moving northeast at 15 mph.

HAZARD...Wind gusts to 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This storm will remain over mainly rural areas of southeastern Emmons
County, including the following locations... Hull.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4629 10014 4628 9988 4617 9988 4594 10015
      4594 10040
TIME...MOT...LOC 0247Z 211DEG 14KT 4611 10014

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

HOLLAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 20, 12:13 AM CDT	Special Weather Statement	BIS	Stutsman	47 min

Nearby

Special Weather Statements in North Dakota, 2021 Every special weather statement in 2021

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.