Alert archive / Minnesota / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 13, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 5, 1989, 7:30 PM CDT for Lake of the Woods County, Roseau County, Minnesota. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Jul 5, 1989, 7:30 PM CDT (00:30 UTC)
- Expired
- Jul 5, 1989, 8:30 PM CDT
- In force
- 60 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
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
International Fa, MN (KINL), launched 00:00Z, 0.5 hours before the alert went out and 153 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
- 2593 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 1454 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 7.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KINL 060032 COR SVRINL MNC135-077-060130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN 730 PM CDT WED JUL 5 1989 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 0830 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES... IN NORTHWESTERN MINNESOTA ... ROSEAU..LAKE OF THE WOODS AT 710 PM THIS EVENING ROSEAU POLIECE REPORTED SEVERE THUNDERSTORMS AND 1 INCH HAIL OCCURING. STRONG WINDS WERE ALSO NOTED. MOVEMENT OF THE STORM WAS NORTHEAST AT 30 MPH. CITIES IN EASTERN ROSEAU AND NORTHERN LAKE OF THE WOODS SHOULD BE PREPARED FOR HEAVY WEATHER. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND... DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. WHEN THUNDERSTORMS ARE OCCURRING..MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOS. HOUSE
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 5, 6:38 PM CDT, 52 minutes before
SPECIAL WEATHER STATEMENT QND RADAR SUMMARY NATIONAL WEATHER SERVICE FARGO ND 625 PM CDT WED JUL 5 1989 ...THUNDERSTORMS DEVELOPING RAPIDLY OVER NORTHWEST MINNESOTA... AT 625 PM AN INTENSE THUNDERSTORM WAS LOCATED OVER THE NORTHWEST CORNER OF BELTRAMI COUNTY OF NORTHWEST MINNESOTA..30 MILES NORTHEAST OF THIEF RIVER FALLS MINNESOTA. THIS THUNDERSTORM WAS MOVEING NORTHEAST AT 30 MILES AN HOUR AND COULD PRODUCE BRIEF HEAVY RAIN..HAIL AND GUSTY WINDS. THIS THUNDERSTORM WILL PASS INTO LAKE OF THE WOODS COUNTY BY 7 PM. SEVERAL OTHER INTENSE THUNDERSTORMS WERE LOCATED OVER TRAIL COUNTY OF NORTHEAST NORTH DAKOTA AND SOUTHWEST POLK COUNTY OF NORTHWEST MINNESOTA AND WERE MOVING NORTHEAST AT 30 MILES AN HOUR AND WILL BE IN THE CROOKSTON MINNESOTA AREA BY 645 PM. THESE THUNDERSTORMS COULD ALSO PRODUCE HEAVY RAIN..HAIL AND GUSTY WINDS. OTHER THUNDERSTORMS AND RAIN SHOWERS CONTINUED OVER NORTHWEST MINNESOTA. PERSONS NEAR THESE THUNDERSTORMS SHOULD REMAIN ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE PREPARTED TO SEEK SHELTER IF NECESSARY. PLEASE STAY TUNED TO YOUR LOCAL RADIO AND TV STATIONS AS WELL AS NOAA WEATHER RADIO FOR LATEST INFORMATION ON THESE INTENSE THUNDERSTORMS. ANDERSEN
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 8:04 PM CDT | Severe Thunderstorm Warning | FGF | Marshall | 56 min |
| Jul 5, 9:20 PM CDT | Severe Thunderstorm Warning | FGF | Koochiching | 70 min |
| Jul 5, 10:30 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater | 60 min |
| Jul 5, 10:30 PM CDT | Severe Thunderstorm Warning | FGF | Koochiching | 60 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1989Every severe thunderstorm warning in 1989
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.