Alert archive / North Dakota / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 151, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Aug 21, 1996, 4:12 AM CDT for Sheridan County, North Dakota. It was in force for 63 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
- Aug 21, 1996, 4:12 AM CDT (09:12 UTC)
- Expired
- Aug 21, 1996, 5:15 AM CDT
- In force
- 63 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
County Sheridan County, ND
The radar
The Bismarck radar (KBIS), 95 km from the middle of the area, began a volume at 09:11 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 nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 9.2 hours before the alert went out and 93 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
- 1259 J/kg
- Mixed-layer CIN
- -238 J/kg
- Mixed-layer LCL
- 2050 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 247 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBIS 210913 SVRBIS NDC083-211015- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BISMARCK ND 412 AM CDT WED AUG 21 1996 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL NORTH DAKOTA ...SHERIDAN COUNTY AT 408 AM CDT A SEVERE THUNDERSTORM WAS 55 MILES NORTH OF BISMARCK OR 8 MILES NORTHWEST OF MCCLUSKY. THE STORM WAS MOVING NORTHEAST AT 25 MPH. THE STORM IS EXPECTED TO BE NEAR MARTIN AROUND 445 AM CDT. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. VINING
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 20, 11:20 PM CDT, 4 hours 52 minutes before
NDZ034-035-210515- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1119 PM CDT (1019 PM MDT) TUE AUG 20 1996 ...STRONG THUNDERSTORMS HEADING FOR BISMARCK AND MANDAN... AT 1115 PM CDT STRONG THUNDERSTORMS WERE LOCATED 20 MILES SOUTHWEST OF BISMARCK...MOVING TO THE NORTHEAST AT 25 MPH. THE THUNDERSTORMS HAVE A HISTORY OF PRODUCING PEA TO DIME SIZE HAIL...BUT HAVE WEAKENED A LITTLE IN THE PAST 10 MINUTES. THE THUNDERSTORMS WILpL MOVE INTO THE CITIES OF BISMARCK AND MANDAN BY 1140 PM CDT. HEAVY RAIN WITH SOME STREET FLOODING IS LIKELY...ALONG WITH DEADLY LIGHTNING...SMALL HAIL AND GUSTY WINDS. VAN ESS
Special weather statement, Aug 20, 11:36 PM CDT, 4 hours 36 minutes before
NDZ034-035-210530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1135 PM CDT TUE AUG 20 1996 ...STRONG THUNDERSTORMS HEADING FOR BISMARCK AND MANDAN... AT 1135 PM CDT A STRONG THUNDERSTORM WAS LOCATED 8 MILES SOUTHWEST OF BISMARCK...MOVING TO THE NORTHEAST AT 25 MPH. THE THUNDERSTORM WILL MOVE INTO THE CITIES OF BISMARCK AND MANDAN BY 1145 PM CDT. THE THUNDERSTORM WILL LIKELY PRODUCE HEAVY RAIN WITH SOME STREET FLOODING...SMALL HAIL AND GUSTY WINDS. VAN ESS
Special weather statement, Aug 21, 2:13 AM CDT, 1 hour 59 minutes before
NDZ004>007-011>015-020>023-034>036-041-042-044>046-071200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 210 AM CDT WED AUG 21 1996 ...TORNADO WATCH NO LONGER IN EFFECT... THE TORNADO WATCH THAT WAS IN EFFECT UNTIL 2 AM CDT FOR MUCH OF CENTRAL NORTH DAKOTA HAS BEEN ALLOWED TO EXPIRE. HOWEVER THERE IS STILL A THREAT OF THUNDERSTORMS...SOME SEVERE WITH LARGE HAIL AND DAMAGING WIND...TO OCCUR THROUGH DAYBREAK. AT 2 AM CDT SCATTERED DTHUNDERSTORMS CONTINUED ACROSS THE STATE MOVING NORTHEAST AT ABOUT 30 MPH. BRIEF HEAVY RAIN...SMALL HAIL AND STRONG WINDS CAN BE EXPECTED WITH THESE STORMS. VINING
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 9:40 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 35 min |
| Aug 20, 10:25 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 50 min |
| Aug 21, 2:51 AM CDT | Severe Thunderstorm Warning | BIS | Wells | 69 min |
| Aug 21, 3:10 AM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 65 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 1996Every severe thunderstorm warning in 1996
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.