Alert archive / North Dakota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 101, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Aug 18, 1998, 10:40 PM CDT for Logan County, North Dakota. It was in force for 35 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
- Aug 18, 1998, 10:40 PM CDT (03:40 UTC)
- Expired
- Aug 18, 1998, 11:15 PM CDT
- In force
- 35 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
County Logan County, ND
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 18, 11:00 PM CDT | Thunderstorm Wind 50 | Gackle, ND | branches 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 nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 3.7 hours before the alert went out and 100 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
- 1947 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 690 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 3.7
The text
As transmitted, in the capitals the NWS used until 2016.
120 WUUS1 KBIS 190343 RRA SVRBIS NDC047-190415- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BISMARCK ND 1040 PM CDT TUE AUG 18 1998 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN LOGAN COUNTY IN SOUTH CENTRAL NORTH DAKOTA * UNTIL 1115 PM CDT * AT 1040 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 60 MILES SOUTHEAST OF BISMARCK...10 MILES SOUTHEAST OF NAPOLEON...MOVING NORTHEAST AT 30 MPH. THIS SEVERE THUNDERSTORM WILL REMIAN IN RURAL AREAS OF EASTERN LOGAN COUNTY. DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS JP MARTIN
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, Aug 18, 9:20 PM CDT, 1 hour 20 minutes before
NDZ003>005-011>014-019>025-190300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 920 PM CDT TUE AUG 18 1998 ...TORNADO WATCH CANCELLED FOR PARTS OF CENTRAL NORTH DAKOTA... TORNADO WATCH 728 HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES IN NORTH CENTRAL NORTH DAKOTA: RENVILLE...BOTTINEAU...ROLETTE...BENSON... EDDY...PIERCE...MCHENRY...WARD...MCLEAN...SHERIDAN...WELLS...FOSTER AND OLIVER. THE STORMS HAVE DIMINISHED AND/OR MOVED OUT OF THE COUNTIES AND SEVERE WEATHER IS NO LONGER A THREAT. A TORNADO WATCH CONTINUES IN EFFECT FOR SOUTH CENTRAL NORTH DAKOTA UNTIL 10 PM CDT. HINTZ
Special weather statement, Aug 18, 9:20 PM CDT, 1 hour 20 minutes before
NDZ003>005-011>014-019>025-190300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 920 PM CDT TUE AUG 18 1998 ...TORNADO WATCH CANCELLED FOR PARTS OF CENTRAL NORTH DAKOTA... TORNADO WATCH 728 HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES IN NORTH CENTRAL NORTH DAKOTA: RENVILLE...BOTTINEAU...ROLETTE...BENSON... EDDY...PIERCE...MCHENRY...WARD...MCLEAN...SHERIDAN...WELLS...FOSTER AND OLIVER. THE STORMS HAVE DIMINISHED AND/OR MOVED OUT OF THE COUNTIES AND SEVERE WEATHER IS NO LONGER A THREAT. A TORNADO WATCH CONTINUES IN EFFECT FOR SOUTH CENTRAL NORTH DAKOTA UNTIL 10 PM CDT. HINTZ
Special weather statement, Aug 18, 9:25 PM CDT, 1 hour 15 minutes before
NDZ003>005-011>014-019>025-190300- SPECIAL WEATHER STATEMENT...CORRECTED... NATIONAL WEATHER SERVICE BISMARCK ND 925 PM CDT TUE AUG 18 1998 ...TORNADO WATCH CANCELLED FOR PARTS OF CENTRAL NORTH DAKOTA... TORNADO WATCH 728 HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES IN NORTH CENTRAL NORTH DAKOTA: STARK...HETTINGER...RENVILLE...BOTTINEAU... ROLETTE...BENSON...EDDY...PIERCE...MCHENRY...WARD...MCLEAN... SHERIDAN...WELLS...FOSTER AND OLIVER. THE STORMS HAVE DIMINISHED AND/OR MOVED OUT OF THE COUNTIES AND SEVERE WEATHER IS NO LONGER A THREAT. A TORNADO WATCH CONTINUES IN EFFECT FOR SOUTH CENTRAL NORTH DAKOTA UNTIL 10 PM CDT. HINTZ
Special weather statement, Aug 18, 9:25 PM CDT, 1 hour 15 minutes before
NDZ003>005-011>014-019>025-190300- SPECIAL WEATHER STATEMENT...CORRECTED... NATIONAL WEATHER SERVICE BISMARCK ND 925 PM CDT TUE AUG 18 1998 ...TORNADO WATCH CANCELLED FOR PARTS OF CENTRAL NORTH DAKOTA... TORNADO WATCH 728 HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES IN NORTH CENTRAL NORTH DAKOTA: STARK...HETTINGER...RENVILLE...BOTTINEAU... ROLETTE...BENSON...EDDY...PIERCE...MCHENRY...WARD...MCLEAN... SHERIDAN...WELLS...FOSTER AND OLIVER. THE STORMS HAVE DIMINISHED AND/OR MOVED OUT OF THE COUNTIES AND SEVERE WEATHER IS NO LONGER A THREAT. A TORNADO WATCH CONTINUES IN EFFECT FOR SOUTH CENTRAL NORTH DAKOTA UNTIL 10 PM CDT. HINTZ
Special weather statement, Aug 18, 10:15 PM CDT, 25 minutes before
NDZ003>005-011>014-019>025-190415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1015 PM CDT TUE AUG 18 1998 ...TORNADO WATCH FOR THE REMAINDER OF CENTRAL NORTH DAKOTA EXPIRED... TORNADO WATCH 728 HAS EXPIRED FOR THE REMAINDER OF CENTRAL NORTH DAKOTA. THERE ARE NO LONGER ANY WATCHES IN THE STATE. ALTHOUGH THE THREAT FOR TORNADOES HAS DIMINISHED...STORMS IN PORTIONS OF CENTRAL NORTH DAKOTA ARE STILL CAPABLE OF VERY HEAVY RAINS. BE ON THE LOOKOUT FOR POSSIBLE STREET FLOODING AND FLOODING OF LOW LYING AREAS. ABELING
Special weather statement, Aug 18, 10:15 PM CDT, 25 minutes before
NDZ003>005-011>014-019>025-190415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1015 PM CDT TUE AUG 18 1998 ...TORNADO WATCH FOR THE REMAINDER OF CENTRAL NORTH DAKOTA EXPIRED... TORNADO WATCH 728 HAS EXPIRED FOR THE REMAINDER OF CENTRAL NORTH DAKOTA. THERE ARE NO LONGER ANY WATCHES IN THE STATE. ALTHOUGH THE THREAT FOR TORNADOES HAS DIMINISHED...STORMS IN PORTIONS OF CENTRAL NORTH DAKOTA ARE STILL CAPABLE OF VERY HEAVY RAINS. BE ON THE LOOKOUT FOR POSSIBLE STREET FLOODING AND FLOODING OF LOW LYING AREAS. ABELING
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 7:22 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 33 min |
| Aug 18, 7:48 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 32 min |
| Aug 18, 7:59 PM CDT | Severe Thunderstorm Warning | BIS | Emmons | 46 min |
| Aug 18, 8:31 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons | 44 min |
| Aug 18, 9:20 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Kidder | 45 min |
| Aug 19, 12:45 AM CDT | Severe Thunderstorm Warning | BIS | Grant | 50 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 1998Every severe thunderstorm warning in 1998
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.