Alert archive / North Dakota / Special Weather Statements in 2016

Special Weather Statement, NWS Bismarck, ND

July 30, 2016Wells County, North Dakota

NWS Bismarck, ND issued this special weather statement at Jul 30, 2016, 4:47 PM CDT for Wells County, North Dakota. It was in force for 43 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: Jul 30, 2016, 4:47 PM CDT (21:47 UTC)
Expired: Jul 30, 2016, 5:30 PM CDT
In force: 43 min
Issued by: NWS Bismarck, ND

County Wells County, ND

The radar

The Minot AFB radar (KMBX), 111 km from the middle of the area, began a volume at 21:48 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

Aberdeen, SD (KABR), launched 12:00Z, 9.8 hours before the alert went out and 326 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: 1497 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 72 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 Jul 30, 3:15 PM CDT, 1 hour 32 minutes earlier.

Area forecast discussion, Jul 30, 3:15 PM CDT, 1 hour 32 minutes before

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Hazardous weather outlook, Jul 30, 3:15 PM CDT, 1 hour 32 minutes before

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In the hours before

Special weather statement, Jul 30, 2:46 PM CDT, 2 hours 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
246 PM CDT SAT JUL 30 2016

NDZ013-022-023-302030-
PIERCE ND-WELLS ND-SHERIDAN ND-
246 PM CDT SAT JUL 30 2016

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN SHERIDAN...SOUTH
CENTRAL PIERCE AND NORTHWESTERN WELLS COUNTIES UNTIL 330 PM CDT...

AT 245 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6
MILES NORTHWEST OF HARVEY...MOVING NORTHEAST AT 20 MPH.

HALF INCH HAIL AND WIND GUSTS TO 40 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
HARVEY...WELLSBURG AND SELZ.

VERY HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4808 9984 4802 9985 4802 9981 4785 9981
      4785 9971 4757 10004 4763 10019 4813 9995
TIME...MOT...LOC 1945Z 211DEG 16KT 4789 9994

SCHILD

Special weather statement, Jul 30, 4:02 PM CDT, 45 minutes before

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Special weather statement, Jul 30, 4:47 PM CDT, 0 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
Jul 30, 4:08 AM CDT	Special Weather Statement	BIS	Oliver	67 min
Jul 30, 4:35 AM CDT	Special Weather Statement	BIS	Burleigh	40 min
Jul 30, 5:30 AM CDT	Special Weather Statement	BIS	Burleigh	30 min
Jul 30, 2:46 PM CDT	Special Weather Statement	BIS	Wells	44 min
Jul 30, 3:06 PM CDT	Severe Thunderstorm Warning	BIS	Sheridan, Wells	39 min
Jul 30, 3:46 PM CDT	Areal Flood Advisory	BIS	Sheridan, Wells	4 hr
Jul 30, 4:02 PM CDT	Special Weather Statement	BIS	Wells	43 min
Jul 30, 5:43 PM CDT	Special Weather Statement	BIS	Wells	47 min

Nearby

Special Weather Statements in North Dakota, 2016 Every special weather statement in 2016

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.