Alert archive / North Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 78, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Aug 26, 1990, 1:55 AM CDT for Foster County, Stutsman County, North Dakota. It was in force for 35 min.
The area
The counties it named.
The facts
- Issued
- Aug 26, 1990, 1:55 AM CDT (06:55 UTC)
- Expired
- Aug 26, 1990, 2:30 AM CDT
- In force
- 35 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
Counties Foster County, ND, Stutsman County, ND
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 6.9 hours before the alert went out and 144 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
- 2995 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1209 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 2.2
- Supercell composite
- 12.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 25, 9:02 PM CDT, 4 hours 53 minutes before
NDZ001>018-250500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 845 PM CDT SAT AUG 25 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PORTIONS OF SOUTHEAST NORTH DAKOTA UNTIL 100 AM CDT... VERY UNSTABLE AIR COVERS SOUTHEAST NORTH DAKOTA...AND SEVERE THUNDERSTORMS ARE POSSIBLE THERE UNTIL 1 AM CDT EARLY THIS SUNDAY MORNING. FARTHER WEST...BISMARCK RADAR DETECTED A VERY VIGOROUS THUNDERSTORM AT 850 PM CDT IN THE SOUTHWEST TIP OF GRANT COUNTY...ABOUT 75 MILES SOUTHWEST OF BISMARCK. THIS STORM CONTAINED VERY HEAVY RAIN AND POSSIBLY SOME HAIL. IT WAS MOVING NORTHEAST 15 MPH. ELSEWHERE AROUND THE STATE...RADARS INDICATED WIDELY SCATTERED THUNDERSTORMS ABOUT 20 MILES NORTHWEST OF DICKINSON AND 30 MILES NORTHEAST OF MINOT. THESE STORMS WERE MOVING NORTHEAST 15 MPH. < UNSTABLE AIR COVERS NORTH DAKOTA...AND SEVERE THUNDERSTORMS ARE POSSIBLE TONIGHT...ESPECIALLY IN THE SOUTHEAST UNTIL 1 AM CDT. LM
Special weather statement, Aug 25, 10:30 PM CDT, 3 hours 25 minutes before
NDZ001>018-250500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1030 PM CDT SAT AUG 25 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PORTIONS OF SOUTHEAST NORTH DAKOTA UNTIL 100 AM CDT... AT 1025 PM CDT MOIST AND VERY UNSTABLE AIR WAS CAUSING NUMEROUS THUNDERSTORMS IN THE SOUTHEASTERN NORTH DAKOTA COUNTIES OF LOGAN... MC INTOSH...DICKEY AND LA MOURE. THERE IS A POSSIBILITY OF SEVERE STORMS IN THIS REGION UNTIL 1 AM CDT.} ELSEWHERE IN THE STATE...BISMARCK RADAR SHOWED WIDELY SCATTERED THUNDERSTORMS IN NORTH CENTRAL NORTH DAKOTA...AND ISOLATED STORMS IN THE SOUTHWEST. THESE STORMS WERE MOVING NORTHEAST 15 MPH. LM
Special weather statement, Aug 25, 11:17 PM CDT, 2 hours 38 minutes before
NDZ006>014-250530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 1115 PM CDT SAT AUG 25 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PORTIONS OF SOUTHEAST NORTH DAKOTA UNTIL 100 AM CDT... THERE IS A THREAT OF SEVERE THUNDERSTORMS IN MUCH OF SOUTHEAST NORTH DAKOTA UNTIL 1 AM CDT DUE TO MOIST AND VERY UNSTABLE AIR. AT 1110 PM CDT...BISMARCK RADAR SHOWED A LINE OF STRONG THUNDERSTORMS IN SOUTH CENTRAL NORTH DAKOTA MOVING TO THE EAST. THE LINE BEGAN 40 MILES EAST OF BISMARCK AT STEELE AND CURVED SOUTHEAST ACROSS NAPOLEAN AND THEN REACHED SOUTHWEST TO THE SOUTH DAKOTA BORDER NEAR ZEELAND. THIS LINE OF STRONG THUNDERSTORMS WAS MOVING EAST 20 MPH. ELSEWHERE...LESS INTENSE SCATTERED THUNDERSTORMS WERE SEEN ON BISMARCK RADAR IN A TRIANGLE AREA BETWEEN MINOT...DEVILS LAKE AND BISMARCK. THESE STORMS WERE MOVING NORTHEAST 15 MPH. LM
Special weather statement, Aug 26, 12:59 AM CDT, 56 minutes before
NDZ003>008-260700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 100 AM CDT SUN AUG 26 1990 ...STRONGE THUNDERSTORMS CONTINUING OVER CENTRAL AND SOUTHWEST NORTH DAKOTA... AT 1255 AM CDT...VERY STRONG THUNDERSTORM ACTIVITY WAS OCCURRING OVER CENTRAL NORTH DAKOTA. THE MOST INTENSE THUNDERSTORM WAS LOCATED IN WELLS COUNTY...70 MILES NORTHEAST OF BISMARCK MOVING EAST AT 30 MILES AN HOUR. VERY HEAVY RAIN...GUSTY WINDS AND SMALL HAIL ARE EXPECTED FROM THESE THUNDERSTORMS WITH SOME FLOODING OF LOW LYING AREAS POSSIBLE. ANOTHER AREA OF THUNDERSTORMS WAS LOCATED IN EXTREME SOUTHWEST NORTH DAKOTA NEAR BOWMAN. SMALL HAIL...WIND GUSTS TO 50 MPH AND BRIEF HEAVY RAIN ARE POSSIBLEG FROM THE THUNDERSTORMS. THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 7:21 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant | 54 min |
| Aug 25, 9:25 PM CDT | Severe Thunderstorm Warning | BIS | McIntosh | 30 min |
| Aug 26, 1:36 AM CDT | Severe Thunderstorm Warning | BIS | Benson, Ramsey | 54 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 1990Every severe thunderstorm warning in 1990
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.