Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 25, NWS Bismarck, ND
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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 18, 8:00 PM MDT | Hail 0.75 | Amidon, ND | |
| Jun 18, 9:10 PM MDT | Hail 0.75 | Bowman, 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.
- 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
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 9:04 PM MDT | Severe Thunderstorm Warning | BIS | Adams, Bowman | 56 min |
| Jun 18, 9:57 PM MDT | Severe Thunderstorm Warning | BIS | Adams | 63 min |
| Jun 19, 12:47 PM MDT | Tornado Warning | BIS | Bottineau | 58 min |
| Jun 19, 1:40 PM MDT | Severe Thunderstorm Warning | BIS | Rolette | 65 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.