Alert archive / North Dakota / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 71, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 15, 1986, 4:17 AM MDT for Hettinger County, Stark County, North Dakota. It was in force for 43 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
- Jul 15, 1986, 4:17 AM MDT (10:17 UTC)
- Expired
- Jul 15, 1986, 5:00 AM MDT
- In force
- 43 min
- Issued by
- NWS Bismarck, ND
- Area
- Whole counties
Counties Hettinger County, ND, Stark County, ND
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 15, 4:20 AM MDT | Thunderstorm Wind 52 | Stark, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Rapid City, SD (KRAP), launched 00:00Z, 10.3 hours before the alert went out and 285 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
- 2241 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 1661 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBIS 151018 SVRBIS NDC089-041-151100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BISMARCK ND 517 AM CDT TUE JUL 15 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTHWEST NORTH DAKOTA...EASTERN STARK AND NORTHERN HETTINGER AT 410 AM MDT A SEVERE THUNDERSTORM WAS LOCATED 10 MILES SOUTH OF DICKINSON NORTH DAKOTA MOVING EAST 40 MILES AN HOUR. THIS STORM IS ACCOMPANIED BY DANGEROUS LIGHTNING. > THIS THUNDERSTORM WILL LIKELY DEVELOP WIND GUSTS IN EXCESS OF 58 MPH OR HAIL 3/4 OF AN INCH OR LARGER. IF THREATENING WEATHER APPROACHES TAKE COVER IMMEDIATELY. REMEMBER THAT LIGHTNING IS A THUNDERSTORMS MOST DEADLY WEAPON. REPORT ALL SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCY AFTER THE STORM PASSES. REMEMBER THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING SO BE ON THE LOOKOUT. RJR/1016Z
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 15, 1:46 AM MDT, 2 hours 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 240 AM CDT TUE JUL 15 1986 ...THUNDESTROMS DEVELOPING OVER EASTERN MONTANA... AT 130 AM CDT WILLISTON RADAR INDICATED AN AREA OF THUNDERSTORMS RAPIDLY DEVELOPING OVER EAST CENTRAL MONTANA. THE STRONGEST STORMS WERE OVER RICHLAND COUNTY FROM SIDENY TO 15 MILES WEST OF LAMBERT. AN ISOLATED THUNDERSTORM WAS OVER SOUTHERN SHERIDAN COUNTY 14 MILES SOUTH OF PLENTYWOOD. THERE HAVE ONLY BEEN REPORTS OF FREQUENT LIGHTNING AND HEAVY RAIN. HOWEVER THESE STORMS WIL PRODUCE SMALL HAIL AND GUSTY WINDS IN ADDITION TO THE RAIN AND DANGEROUS LIGHTNING. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR. KENNEDY
Special weather statement, Jul 15, 1:47 AM MDT, 2 hours 30 minutes before
SPECIAL WEATHER STATEMENT ...CORRECTED... NATIONAL WEATHER SERVICE WILLISTON ND 240 AM CDT TUE JUL 15 1986 ...THUNDERSTROMS DEVELOPING OVER EASTERN MONTANA... AT 130 AM CDT WILLISTON RADAR INDICATED AN AREA OF THUNDERSTORMS RAPIDLY DEVELOPING OVER EAST CENTRAL MONTANA. THE STRONGEST STORMS WERE OVER RICHLAND COUNTY FROM SIDENY TO 15 MILES WEST OF LAMBERT. AN ISOLATED THUNDERSTORM WAS OVER SOUTHERN SHERIDAN COUNTY 14 MILES SOUTH OF PLENTYWOOD. THERE HAVE ONLY BEEN REPORTS OF FREQUENT LIGHTNING AND HEAVY RAIN. HOWEVER THESE STORMS WILL PRODUCE SMALL HAIL AND GUSTY WINDS IN ADDITION TO THE RAIN AND DANGEROUS LIGHTNING. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR. KENNEDY
Special weather statement, Jul 15, 2:35 AM MDT, 1 hour 42 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILLISTON ND 335 AM CDT TUE JUL 15 1986 ...THUNDERSTROMS MOVING RAPIDLY NORTHEAST OVER WESTERN NORTH DAKOTA... AT 330 AM CDT WILLISTON RADAR INDICATED AN AREA OF THUNDERSTORMS MOVING RAPIDLY NORTHEAST OVER EASTERN MONTANA AND WESTERN NORTH DAKOTA. THE STRONGEST STORMS WERE OVER SIDNEY MONTANA IN RICHLAND COUNTY AND JUST SOUTH OF TRENTON IN SOUTHWEST WILLIAMS COUNTY NORTH DAKOTA. THE THUNDERSTORMS HAVE SHOWN A SLIGHT DECREASE IN INTENSITY SINCE 3AM CDT. HOWEVER THE STORMS WILL PRODUCE BRIEF HEAVY RAIN... POSSIBLE SMALL HAIL...GUSTY WINDS...AND DANGEROUS LIGHTNING. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR. KENNE%DY
Special weather statement, Jul 15, 3:50 AM MDT, 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 450 AM CDT TUE JUL 15 1986 ...THUNDERSTORMS OVER WESTERN NORTH DAKOTA... AT 440 AM CDT NUMEROUS THUNDERSTORMS WITH INTENSE LIGHTNING WERE LOCATED OVER WESTERN NORTH DAKOTA. THE STRONGEST ACTIVITY WAS FOUND 15 MILES WEST OF DICKINSON NORTH DAKOTA. THESE THUNDERSTORMS HAVE DANGEROUS LIGHTNING..VERY HEAVY RAIN.. HAIL AND GUSTY WINDS WINDS. THE MOVEMENT OF THESE THUNDERSTORMS| WAS EAST AT 25 MILES AN HOUR.
Nearby
Severe Thunderstorm Warnings in North Dakota, 1986Every severe thunderstorm warning in 1986
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.