Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 25, NWS Bismarck, ND

June 18, 1997Bowman County, Slope County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 18, 1997, 7:53 PM MDT for Bowman County, Slope County, North Dakota. It was in force for 67 min. 2 reports 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
Jun 18, 1997, 7:53 PM MDT (01:53 UTC)
Expired
Jun 18, 1997, 9:00 PM MDT
In force
67 min
Issued by
NWS Bismarck, ND
Area
Whole counties

Counties Bowman County, ND, Slope County, ND

The radar

The Bismarck radar (KBIS), 216 km from the middle of the area, began a volume at 01:52 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

TimeReportWhereRemark
Jun 18, 8:00 PM MDTHail 0.75Amidon, ND
Jun 18, 9:10 PM MDTHail 0.75Bowman, ND

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 nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.9 hours before the alert went out and 220 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-pSkew-T log-p diagram, Bismarck Municip, ND at 00:00Z on 1997-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 1997-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1435 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
245 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBIS 190155 RRA
SVRBIS
NDC011-087-190300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
853 PM CDT (753 PM MDT) WED JUN 18 1997
 
THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM CDT (900 PM MDT)
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHWEST NORTH DAKOTA
 
   ...EASTERN BOWMAN COUNTY...SLOPE COUNTY
 
AT 850 PM MDT SEVERE THUNDERSTORMS WERE LOCATED 9 MILES NORTH OF BOWMAN
AND 25 MILES NORTHWEST OF BOWMAN. THE SEVERE THUNDERSTORMS WERE MOVING
SOUTHEAST AT 25 MPH.
 
AT 848 PM MDT QUARTER SIZE HAIL WAS REPORTED ON HIGHWAY 85 NORTH OF
BOWMAN.
 
TOWNS IN THE PATH OR NEAR THE PATH OF THESE STORMS INCLUDE
AMIDON ...SRANTON AND BOWMAN.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
H<AS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
 
VAN ESS
 
&

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.

In the hours before

Special weather statement, Jun 18, 6:00 PM MDT, 1 hour 53 minutes before
NDZ018-031>033-040-041-043-044-190230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  BISMARCK ND
700 PM CDT WED JUN 18 1997

...STRONG THUNDERSTORMS HEADING FOR SOUTHWEST NORTH DAKOTA...

STRONG THUNDERSTORMS WERE MOVING THROUGH EASTERN MONTANA AND SOME WERE
HEADING FOR SOUTHWEST NORTH DAKOTA. SCATTERED THUNDERSTORMS WILL ENTER
SOUTHWEST NORTH DAKOTA AFTER 630 PM MDT.

EXPECT THUNDERSTORMS WITH HEAVY RAIN AND GUSTY WINDS OVER PARTS OF
SOUTHWEST NORTH DAKOTA. SOME OF THE STRONGER THUNDERSTORMS MAY PRODUCE
HAIL AND STRONG WINDS.

THE POTENTIAL FOR SEVERE THUNDERSTORMS WILL CONTINUE ACROSS SOUTHWEST
NORTH DAKOTA THROUGH THE REST OF THE EVENING.

VAN ESS
Special weather statement, Jun 18, 6:06 PM MDT, 1 hour 47 minutes before
NDZ018-031>033-040-041-043-044-190230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  BISMARCK ND
700 PM CDT WED JUN 18 1997

...STRONG THUNDERSTORMS HEADING FOR SOUTHWEST NORTH DAKOTA...

STRONG THUNDERSTORMS WERE MOVING THROUGH EASTERN MONTANA AND SOME WERE
HEADING FOR SOUTHWEST NORTH DAKOTA. SCATTERED THUNDERSTORMS WILL ENTER
SOUTHWEST NORTH DAKOTA AFTER 630 PM MDT.

EXPECT THUNDERSTORMS WITH HEAVY RAIN AND GUSTY WINDS OVER PARTS OF
SOUTHWEST NORTH DAKOTA. SOME OF THE STRONGER THUNDERSTORMS MAY PRODUCE
HAIL AND STRONG WINDS.

THE POTENTIAL FOR SEVERE THUNDERSTORMS WILL CONTINUE ACROSS SOUTHWEST
NORTH DAKOTA THROUGH THE REST OF THE EVENING.

VAN ESS
Special weather statement, Jun 18, 7:20 PM MDT, 33 minutes before
NDZ031-032-040-043-190230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  BISMARCK ND
820 PM CDT WED JUN 18 1997

...STRONG THUNDERSTORMS IN SOUTHWEST NORTH DAKOTA...

AT 720 PM MDT STRONG THUNDERSTORMS WERE LOCATED 14 MILES NORTHWEST OF
BOWMAN IN SLOPE COUNTY AND 33 MILES NORTHWEST OF BOWMAN IN SOUTHERN
GOLDEN VALLEY COUNTY. THE THUNDERSTORMS WERE MOVING EAST AT 30 MPH.

THE THUNDERSTORMS WILL PRODUCE VERY HEAVY RAIN...SMALL HAIL AND WIND
GUSTS TO 55 MPH.

THE THUNDERSTORMS WILL BE IN THE VICINITY OF AMIDON IN CENTRAL SLOPE
COUNTY.

VAN ESS
Special weather statement, Jun 18, 7:26 PM MDT, 27 minutes before
NDZ031-032-040-043-190230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  BISMARCK ND
820 PM CDT WED JUN 18 1997

...STRONG THUNDERSTORMS IN SOUTHWEST NORTH DAKOTA...

AT 720 PM MDT STRONG THUNDERSTORMS WERE LOCATED 14 MILES NORTHWEST OF
BOWMAN IN SLOPE COUNTY AND 33 MILES NORTHWEST OF BOWMAN IN SOUTHERN
GOLDEN VALLEY COUNTY. THE THUNDERSTORMS WERE MOVING EAST AT 30 MPH.

THE THUNDERSTORMS WILL PRODUCE VERY HEAVY RAIN...SMALL HAIL AND WIND
GUSTS TO 55 MPH.

THE THUNDERSTORMS WILL BE IN THE VICINITY OF AMIDON IN CENTRAL SLOPE
COUNTY.

VAN ESS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 9:04 PM MDTSevere Thunderstorm WarningBISAdams, Bowman56 min
Jun 18, 9:57 PM MDTSevere Thunderstorm WarningBISAdams63 min
Jun 19, 12:47 PM MDTTornado WarningBISBottineau58 min
Jun 19, 1:40 PM MDTSevere Thunderstorm WarningBISRolette65 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1997Every 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; radar from the NEXRAD Level II archive.