Alert archive / North Dakota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 77, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 14, 1998, 12:43 AM MDT for Bowman County, Slope County, North Dakota. It was in force for 62 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 14, 1998, 12:43 AM MDT (06:43 UTC)
- Expired
- Jul 14, 1998, 1:45 AM MDT
- In force
- 62 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 06:46 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.
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 13, 11:30 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 6.7 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
- 140 J/kg
- Mixed-layer CIN
- -323 J/kg
- Mixed-layer LCL
- 2380 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 80 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 140642 RRA SVRBIS NDC011-087-140745- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BISMARCK ND 143 AM CDT (1243 AM MDT) TUE JUL 14 1998 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BOWMAN COUNTY IN SOUTHWESTERN NORTH DAKOTA SLOPE COUNTY IN SOUTHWESTERN NORTH DAKOTA * UNTIL 145 AM MDT (245 AM CDT) * AT 1237 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 30 MILES SOUTHWEST OF THE CITY OF BOWMAN... MOVING EAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... MARMARTH AT 1250 AM MDT RHAME AT 105 AM MDT BOWMAN AT 115 AM MDT AMIDTON AT 120 AM MDT DAMAGING WINDS 60 MPH OR HIGHER ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! TSW/WA
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 14, 12:30 AM MDT, 13 minutes before
NDZ031-140645- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 130 AM CDT TUE JUL 14 1998 ...SEVERE THUNDERSTORM WARNING HAS ENDED... AT 1225 AM CDT THE SEVERE THUNDERSTORM THAT MOVED THROUGH GOLDEN VALLEY COUNTY HAS MOVED OUT OF THE AREA. GOLVA REPORTED A 60 MPH WIND GUST ALONG WITH QUARTER INCH HAIL AND A HALF INCH OF RAIN IN HALF AN HOUR. FRANSEN
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 11:38 PM MDT | Severe Thunderstorm Warning | BIS | Golden Valley | 47 min |
| Jul 14, 12:20 AM MDT | Severe Thunderstorm Warning | BIS | McKenzie | 60 min |
| Jul 14, 12:25 AM MDT | Severe Thunderstorm Warning | BIS | Billings | 60 min |
| Jul 14, 2:13 AM MDT | Severe Thunderstorm Warning | BIS | Morton, Oliver | 47 min |
| Jul 14, 2:18 AM MDT | Severe Thunderstorm Warning | BIS | Hettinger | 47 min |
| Jul 14, 3:04 AM MDT | Severe Thunderstorm Warning | BIS | McLean, Oliver | 61 min |
| Jul 14, 4:11 AM MDT | Severe Thunderstorm Warning | BIS | Pierce | 44 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.