Alert archive / North Dakota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 102, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 23, 1997, 6:37 PM CDT for Renville County, North Dakota. It was in force for 68 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
- Jul 23, 1997, 6:37 PM CDT (23:37 UTC)
- Expired
- Jul 23, 1997, 7:45 PM CDT
- In force
- 68 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
County Renville County, ND
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 23, 7:05 PM CDT | Hail 0.75 | Sherwood, ND | |
| Jul 23, 7:26 PM CDT | Tornado F2 | Greene, ND | A tornado touched down 12 miles south of Greene or 7 N of Carpio. The tornado touched down directly on a farmhouse. The house was blown off of the foundation, then blown apart. A 70 yr. old man was blown out of the house, while a 1 month old infant was trapped |
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 |
|---|---|---|---|
| Jul 23, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 11.6 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.
000 TTAA00 KBIS 232337 RRA SVRBIS NDC075-240045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BISMARCK ND 637 PM CDT WED JUL 23 1997 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 745 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL NORTH DAKOTA ...RENVILLE COUNTY AT 632 CDT WEATHER RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE HAIL 35 MILES NORTHWEST OF MINOT OR 10 MILES SOUTHEAST OF KENMARE. THE STORM WAS MOVING EAST AT 15 MPH. TOWNS IN ITS PATH ARE TOLLEY...NORMA...GRANO AND MOHALL. 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, 1:40 PM CDT, 4 hours 57 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, 4 hours 53 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, 5:36 PM CDT | Severe Thunderstorm Warning | BIS | Renville | 54 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.