Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 101, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 23, 1997, 5:36 PM CDT for Renville County, North Dakota. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 23, 1997, 5:36 PM CDT (22:36 UTC)
- Expired
- Jul 23, 1997, 6:30 PM CDT
- In force
- 54 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
County Renville County, ND
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 10.6 hours before the alert went out and 228 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
- 1164 J/kg
- Mixed-layer CIN
- -197 J/kg
- Mixed-layer LCL
- 600 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
790 WUUS1 KBIS 232237 RRA SVRBIS NDC075-232330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BISMARCK ND 536 PM CDT WED JUL 23 1997 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL NORTH DAKOTA ...NORTHERN RENVILLE COUNTY AT 531 PM CDT WEATHER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTH OF TOLLEY OR 40 MILES NORTHWEST OF MINOT. THE STORM WAS MOVING NORTHEAST 20 MPH AND TOWNS IN ITS PATH ARE SHERWOOD AND LORAINE. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
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, Jul 23, 12:20 PM CDT, 5 hours 16 minutes before
NDZ002>005-010>013-021-022-231830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1220 PM CDT WED JUL 23 1997 ...THUNDERSTORMS CONTINUE TO MOVE ACROSS NORTH CENTRAL NORTH DAKOTA... AT 1215 PM CDT DOPPLER WEATHER RADAR INDICATED A BAND OF THUNDERSTORMS...SOME WITH SMALL HAIL AND GUSTY WINDS...FROM 75 MILES NORTHEAST OF MINOT TO 60 MILES SOUTHWEST OF MINOT. THE STORMS WERE MOVING EAST AT 30 MPH. THE STRONGEST STORMS WERE CONCENTRATED IN AN AREA FROM MINOT AIR FORCE BASE TO KRAMER...15 MILES SOUTHWEST OF BOTTINEAU. THESE STORMS MAY CONTAIN 1/2 INCH HAIL AND GUSTY WINDS TO 50 MPH...ALONG WITH VERY HEAVY RAIN. ANOTHER STRONG STORM WAS LOCATED 15 MILES NORTHWEST OF PARSHALL OR 45 MILES WEST OF MINOT. A VERY UNSTABLE AIRMASS IS OVER NORTH DAKOTA TODAY...AND THERE IS A POTENTIAL FOR SEVERE WEATHER. IF THREATENING WEATHER APPROACHES SEEK SHELTER INDOORS IMMEDIATELY. STREET AND SMALL STREAM FLOODING IS ALSO POSSIBLE WITH THESE STORMS. LEBLANG
Special weather statement, Jul 23, 12:22 PM CDT, 5 hours 14 minutes before
NDZ002>005-010>013-021-022-231830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1220 PM CDT WED JUL 23 1997 ...THUNDERSTORMS CONTINUE TO MOVE ACROSS NORTH CENTRAL NORTH DAKOTA... AT 1215 PM CDT DOPPLER WEATHER RADAR INDICATED A BAND OF THUNDERSTORMS...SOME WITH SMALL HAIL AND GUSTY WINDS...FROM 75 MILES NORTHEAST OF MINOT TO 60 MILES SOUTHWEST OF MINOT. THE STORMS WERE MOVING EAST AT 30 MPH. THE STRONGEST STORMS WERE CONCENTRATED IN AN AREA FROM MINOT AIR FORCE BASE TO KRAMER...15 MILES SOUTHWEST OF BOTTINEAU. THESE STORMS MAY CONTAIN 1/2 INCH HAIL AND GUSTY WINDS TO 50 MPH...ALONG WITH VERY HEAVY RAIN. ANOTHER STRONG STORM WAS LOCATED 15 MILES NORTHWEST OF PARSHALL OR 45 MILES WEST OF MINOT. A VERY UNSTABLE AIRMASS IS OVER NORTH DAKOTA TODAY...AND THERE IS A POTENTIAL FOR SEVERE WEATHER. IF THREATENING WEATHER APPROACHES SEEK SHELTER INDOORS IMMEDIATELY. STREET AND SMALL STREAM FLOODING IS ALSO POSSIBLE WITH THESE STORMS. LEBLANG
Special weather statement, Jul 23, 1:40 PM CDT, 3 hours 56 minutes before
NDZ005-013-231915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 140 PM CDT WED JUL 23 1997 ...STRONG THUNDERSTORM IN EASTERN PIERCE AND EXTREME SOUTHERN ROLETTE COUNTIES... AT 138 PM CDT DOPPLER WEATHER RADAR INDICATED A STRONG THUNDERSTORM 65 MILES EAST OF MINOT...NEAR WOLFORD...MOVING EAST AT 35 MPH. THIS STORM WILL LIKELY PRODUCE 1/2 INCH HAIL...GUSTY WINDS TO 55 MPH AND VERY HEAVY RAIN. TOWNS NEAR ITS PATH INCLUDE WOLFORD. IF THREATENING WEATHER APPROACHES SEEK SHELTER INDOORS IMMEDIATELY. STAY AWAY FROM WINDOWS. LEBLANG
Special weather statement, Jul 23, 1:44 PM CDT, 3 hours 52 minutes before
NDZ005-013-231915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 140 PM CDT WED JUL 23 1997 ...STRONG THUNDERSTORM IN EASTERN PIERCE AND EXTREME SOUTHERN ROLETTE COUNTIES... AT 138 PM CDT DOPPLER WEATHER RADAR INDICATED A STRONG THUNDERSTORM 65 MILES EAST OF MINOT...NEAR WOLFORD...MOVING EAST AT 35 MPH. THIS STORM WILL LIKELY PRODUCE 1/2 INCH HAIL...GUSTY WINDS TO 55 MPH AND VERY HEAVY RAIN. TOWNS NEAR ITS PATH INCLUDE WOLFORD. IF THREATENING WEATHER APPROACHES SEEK SHELTER INDOORS IMMEDIATELY. STAY AWAY FROM WINDOWS. LEBLANG
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 8:57 AM CDT | Severe Thunderstorm Warning | BIS | Burke, Renville | 63 min |
| Jul 23, 9:36 AM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 54 min |
| Jul 23, 6:37 PM CDT | Severe Thunderstorm Warning | BIS | Renville | 68 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; the sounding from the Mesonet's radiosonde archive.