Alert archive / North Dakota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 85, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Aug 1, 1998, 9:25 PM CDT for McKenzie County, Williams County, North Dakota. It was in force for 60 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 1, 1998, 9:25 PM CDT (02:25 UTC)
- Expired
- Aug 1, 1998, 10:25 PM CDT
- In force
- 60 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
Counties McKenzie County, ND, Williams County, ND
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 1, 9:30 PM CDT | Thunderstorm Wind 60 | Watford City, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 1, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 2.4 hours before the alert went out and 250 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
- 1083 J/kg
- Mixed-layer CIN
- -153 J/kg
- Mixed-layer LCL
- 1215 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KISN 020224 SVRISN NDC053-105-020325- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE WILLISTON ND 925 PM CDT (825 PM MDT) SAT AUG 1 1998 THE NATIONAL WEATHER SERVICE IN WILLISTON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN WILLIAMS COUNTY IN NORTHWESTERN NORTH DAKOTA EASTERN MCKENZIE COUNTY IN NORTHWESTERN NORTH DAKOTA * UNTIL 1025 PM CDT * AT 920 PM CDT...SPOTTERS INDICATED A SEVERE THUNDERSTORM NEAR WILLISTON TO 15 SW OF WILLISTON... MOVING NORTH NORTHEAST AT 20 MPH. A 53 MPH WIND GUST WAS RECORDED AT THE NATIONAL WEATHER SERVICE OFFICE IN WILLISTON AT 908 PM CDT * THE SEVERE THUNDERSTORM WILL BE NEAR... EPPING AT 930 PM RAY AT 940 PM DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! CHAPMAN/FISHER
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 1, 8:45 PM CDT, 40 minutes before
NDZ031>033-040-041-043-044-020210- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 845 PM CDT SAT AUG 1 1998 THE SEVERE THUNDERSTORM WATCH FOR SOUTHWEST NORTH DAKOTA HAS BEEN CANCELLED. THE STORMS HAVE WEAKENED AND MOVED OUT OF THE AREA. HOWEVER...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR NORTHWEST NORTH DAKOTA. THE THREAT OF LARGE HAIL AND DAMAGING WINDS WILL CONTINUE IN NORTHWEST NORTH DAKOTA UNTIL MIDNIGHT CDT. LM8 LM
Special weather statement, Aug 1, 9:00 PM CDT, 25 minutes before
NDZ003-011-019-021-020230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 900 PM CDT SAT AUG 1 1998 THE SEVERE THUNDERSTORM WATCH FOR RENVILLE...WARD...MCLEAN AND MERCER COUNTIES HAS BEEN CANCELLED. THE SEVERE STORMS ARE EXPECTED TO REMAIN FARTHER WEST...AND A THREAT OF LARGE HAIL AND DAMAGING WINDS WILL CONTINUE IN THE REMAINING WATCH AREA OF NORTHWEST NORTH DAKOTA UNTIL MIDNIGHT CDT. LM
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 7:46 PM CDT | Severe Thunderstorm Warning | BIS | Williams | 59 min |
| Aug 1, 10:38 PM CDT | Severe Thunderstorm Warning | BIS | McKenzie, Williams | 32 min |
| Aug 2, 2:05 AM CDT | Severe Thunderstorm Warning | BIS | Mercer | 65 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.