Alert archive / North Dakota / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 45, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 5, 1986, 1:25 AM CDT for Pembina County, Walsh County, North Dakota. It was in force for 65 min. 2 reports 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 5, 1986, 1:25 AM CDT (06:25 UTC)
- Expired
- Jul 5, 1986, 2:30 AM CDT
- In force
- 65 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
Counties Pembina County, ND, Walsh 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 5, 1:55 AM CDT | Hail 1.75 | Walsh, ND | |
| Jul 5, 2:20 AM CDT | Hail 0.88 | Pembina, 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
Bismarck Municip, ND (KBIS), launched 00:00Z, 6.4 hours before the alert went out and 304 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
- 114 J/kg
- Mixed-layer CIN
- -397 J/kg
- Mixed-layer LCL
- 1674 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 483 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 KFAR 050626 SVRFAR NDC099-067-050730- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE FARGO ND 125 AM CDT SAT JUL 5 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 230 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF NORTHEAST NORTH DAKOTA...WALSH AND PEMBINA INCLUDING THE CITIES OF PARK RIVER..GRAFTON..CAVALIER. AT 120 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM 50 MILES NORTHWEST OF GRAND FORKS OR JUST EAST OF WHITMAN NORTH DAKOTA. THE STORM WAS MOVING NORTHEAST AT 35 MILES AN HOUR. REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE DAMAGING WINDS IN EXCESS OF 58 MPH AND/OR HAIL 3/4 OF AN INCH OR LARGER...DEADLY LIGHTNING... AND HEAVY RAINS THAT CAN QUICKLY FLOOD A LOW LYING AREA. IF THREATENING WEATHER APPROACHES...YOU SHOULD GO TO A PLACE OF SAFETY IMMEDIATELY. REPORT ALL SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCY AFTER THE STORM PASSES. THIS STORM IS ACCOMPANIED BY INTENSE LIGHTNING. EWENS
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 4, 11:36 PM CDT, 1 hour 49 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 1135 PM CDT FRI JUL 4 1986 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 4 AM CDT SATURDAY MORNING FOR A LARGE PART OF CENTRAL AND EASTERN NORTH DAKOTA... AT 1125 PM CDT...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED TO DEVELOP RAPIDLY OVER NORTHEAST AND MUCH OF CENTRAL NORTH DAKOTA. MOST OF THESE SHOWERS AND THUNDERSTORMS WERE BETWEEN DEVILS LAKE... JAMESTOWN...AND BISMARCK NORTH DAKOTA. MOVEMENT WAS TO THE NORTHEAST AT 40 MILES AN HOUR. AS OF 1130 PM CDT...NO SEVERE WEATHER HAD BEEN REPORTED IN THE SEVERE THUNDERSTORM WATCH AREA. HOWEVER...WEATHER CONDITIONS REMAIN VERY UNSTABLE AND SEVERE ~THUNDERSTORMS COULD DEVELOP AT ANY TIME. IF YOU LIVE IN OR NEAR THE WATCH AREA...YOU SHOULD MONITOR LOCAL WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. MB
Special weather statement, Jul 5, 12:34 AM CDT, 51 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 1225 AM CDT SAT JUL 5 1986 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 4 AM CDT SATURDAY MORNING FOR A LARGE PART OF CENTRAL AND EASTERN NORTH DAKOTA... AT 1225 AM CDT...A LARGE AREA OF SCATTERED THUNDERSTORMS..SOME WITH HEAVY RAIN..CONTINUED OVER NORTHEAST..CENTRAL AND NORTH CENTRAL NORTH DAKOTA. THE STORNGEST OF THESE THUNDERSTORMS WERE LOCATED BETWEEN DEVILS LAKE AND GRAND FORKS NORTH DAKOTA. MOVEMENT WAS TO THE NORTHEAST AT 35 MILES AN HOUR. AS OF 1225 AM CDT...NO SEVERE WEATHER HAD BEEN REPORTED IN THE SEVERE THUNDERSTORM WATCH AREA. HOWEVER...WEATHER CONDITIONS REMAIN VERY UNSTABLE AND SEVERE THUNDERSTORMS COULD DEVELOP AT ANY TIME. IF YOU LIVE IN OR NEAR THE WATCH AREA...YOU SHOULD MONITOR LOCAL WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. ANDERSEN
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.