Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 174, NWS Bismarck, ND

September 16, 1997Pierce County, Wells County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Sep 16, 1997, 1:14 AM CDT for Pierce County, Wells County, North Dakota. It was in force for 46 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Sep 16, 1997, 1:14 AM CDT (06:14 UTC)
Expired: Sep 16, 1997, 2:00 AM CDT
In force: 46 min
Issued by: NWS Bismarck, ND
Area: Whole counties

Counties Pierce County, ND, Wells County, ND

What was reported inside it

Time	Report	Where	Remark
Sep 16, 1:50 AM CDT	Thunderstorm Wind 65	Fessenden, ND	numerous large tree branches with isolated trees knocked down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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 15, 11:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 6.2 hours before the alert went out and 144 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: 353 J/kg
Mixed-layer CIN: -297 J/kg
Mixed-layer LCL: 1197 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 282 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBIS 160613 RRA
SVRBIS
NDC103-069-160700-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
114 AM CDT TUE SEP 16 1997
 
THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL NORTH DAKOTA
 
   ...WELLS COUNTY
 
IN NORTH CENTRAL NORTH DAKOTA
 
   ...PIERCE COUNTY
 
AT 110 AM CDT DOPPLER WEATHER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS FROM 55 MILES SOUTHEAST OF MINOT TO 65 MILES EAST OF
MINOT. TOWNS IN THE PATH OF THE STORMS INCLUDE RUGBY...HARVEY AND
FESSENDEN.
 
THESE STORMS MAY PRODUCE WINDS UP TO 60 MPH.
 
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
 
LEBLANG

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 15, 10:34 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger	41 min
Sep 15, 11:36 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Ward	69 min
Sep 16, 12:13 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	47 min
Sep 16, 12:46 AM CDT	Severe Thunderstorm Warning	BIS	Sheridan	29 min
Sep 16, 12:54 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	66 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1997 Every severe thunderstorm warning in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.