Alert archive / Minnesota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 12, NWS Duluth, MN
NWS Duluth, MN issued this severe thunderstorm warning at Jun 29, 1990, 6:40 PM CDT for Lake County, Minnesota. It was in force for 50 min.
The area
The counties it named.
The facts
- Issued
- Jun 29, 1990, 6:40 PM CDT (23:40 UTC)
- Expired
- Jun 29, 1990, 7:30 PM CDT
- In force
- 50 min
- Issued by
- NWS Duluth, MN
- Area
- Whole counties
County Lake County, MN
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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.7 hours before the alert went out and 424 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
- 249 J/kg
- Mixed-layer CIN
- -194 J/kg
- Mixed-layer LCL
- 597 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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, Jun 29, 2:34 PM CDT, 4 hours 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN 125 PM CDT FRI JUN 29 1987 AT 125 PM CDT A HEAVY THUNDERSTORM LOCATED 10 MILES SOUTH OF INTERNATIONAL IS MOVING SOUTHEAST AT 20 TO 25 MPH. THIS STORM WILL MOVE INTO NORTHWEST ST LOUIS COUNTY OF MINNISOTA BY 3 PM CDT. THIS STORM MAY COTAIN SMALL HAIL..GUSTY WINDS AND DANGEROUS LIGHTNING BOATERES AND PERSONS ENGAGED ENGUAGED IN OUTDOOR ACTIVITIES SHOULF REMAIN ALERT FOR RAPIDLY CHANGING CONDITIONS AND BE PREPARED TO SEEK SHELTER IF THREATNING WEATHER APPROACHES. FAIRHURST
Special weather statement, Jun 29, 2:38 PM CDT, 4 hours 2 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN 125 PM CDT FRI JUN 29 1987 AT 125 PM CDT A HEAVY THUNDERSTORM LOCATED 10 MILES SOUTH OF INTERNATIONAL FALLS IS MOVING SOUTHEAST AT 20 TO 25 MPH. THIS STORM WILL MOVE INTO NORTHWEST ST LOUIS COUNTY OF MINNISOTA BY 3 PM CDT. THIS STORM MAY COTAIN SMALL HAIL..GUSTY WINDS AND DANGEROUS LIGHTNING BOATERES AND PERSONS ENGAGED IN OUTDOOR ACTIVITIES SHOULF REMAIN ALERT FOR RAPIDLY CHANGING CONDITIONS AND BE PREPARED TO SEEK SHELTER IF THREATNING WEATHER APPROACHES. FAIRHURST
Special weather statement, Jun 29, 3:33 PM CDT, 3 hours 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN 330 PM CDT FRI JUN 29 1987 SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOPE ALONG THE CANADIAN BORDER. THUNDERSTORMS ARE DEVELOPING RAPIDLY FROM BAUDETTE TO INTERNATIONAL FALLS MN. THESE STORMS ARE MOVING EAST AND ARE EXPECTED TO CONTINUE UNTIL EARLY EVENING. GUSTY WINDS..SMALL HAIL AND DANGEROUS LIGHTNING MAY BE OBSERVED WITH SOMQE OF THESE STORMS. BOATERS THE RAINY LAKE CHAIN AND PERSONS ENGAGED IN OUTDOOR ACTIVITIES SHOULD REMAIN ALERT FOR RAPIDLY CHANGING CONDITIONS AND BE PREPARED TO SEEK SHELTER IF THREATNING WEATHER APPROACHES. FAIRHURST
Special weather statement, Jun 29, 3:36 PM CDT, 3 hours 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN 330 PM CDT FRI JUN 29 1987 SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP ALONG THE CANADIAN BORDER. THUNDERSTORMS ARE DEVELOPING RAPIDLY FROM BAUDETTE TO INTERNATIONAL FALLS MN. THESE STORMS ARE MOVING EAST AND ARE EXPECTED TO CONTINUE UNTIL EARLY EVENING. GUSTY WINDS..SMALL HAIL AND DANGEROUS LIGHTNING MAY BE OBSERVED WITH SOME OF THESE STORMS. BOATERS THE RAINY LAKE CTHAIN AND PERSONS ENGAGED IN OUTDOOR ACTIVITIES SHOULD REMAIN ALERT FOR RAPIDLY CHANGING CONDITIONS AND BE PREPARED TO SEEK SHELTER IF THREATNING WEATHER APPROACHES. FAIRHURST
Special weather statement, Jun 29, 5:14 PM CDT, 1 hour 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN 515 PM CDT FRI JUN 29 1987 ...SHOWERS AND THUNDERSTORMS CONTINUE IN NORTHERN MINNESOTA ALONG THE CANADIAN BORDER. THUNDERSTORMS ARE CONTINUING TO DEVELOP OVER THE MINNESOTA COUNTIES ALONG THE CANADIAN BORDER. THESE STORMS ARE MOVING EAST AND ARE EXPECTED TO CONTINUE INTO THE EVENING. GUSTY WINDS...HAIL...BRIEF HEAVY RAIN AND DANGEROUS LIGHTNING MAY BE OBSERVED WITH SOME OF THESE STORMS. BOATERS ON THE RAINY LAKE CHAIN AND PERSONS ENGAGED IN OUTDOOR ACTIVITIES SHOULD REMAIN ALERT FOR RAPIDLY CHANGING CONDITIONS AND BE PREPARED TO SEEK SHELTER IF THREATNING WEATHER APPROACHES. PUBLIC REPORTS OF MARBLE SIZED HAIL WERE RECEIVED FROM GREENBUSH IN ROSEAU COUNTY...AND TWO INCH HAIL ACROSS THE CANADIAN BORDER NORTH OF FORT FRANCIS/INTERNATIONAL FALLS. CARROLL
Special weather statement, Jun 29, 5:43 PM CDT, 57 minutes before
MNZ004-292330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DULUTH MN 540 PM CDT FRI JUN 29 1990 ...STRONG THUNDERSTORMS DEVELOPING IN NORTHERN ST LOUIS COUNTY... AT 5 40 PM DULUTH RADAR DETECTED RAPIDLY DEVELOPING THUDERSTORMS IN NORTHERN ST LOUIS COUNTY BETWEEN INTERNATIONAL FALLS AND HIBBING NEAR ORR...GHEEN...AND NETT LAKE. THESE STORMS WILL PRODUCE BRIEF VERY HEAVY RAIN... HAIL TO 1-INCH DIAMETER AND PEAK WIND GUSTS TO 50 MILES AN HOUR AS THEY MOVE EAST SOUTHEAST AT 30 TO 40 MILES AN HOUR. PLEASE STAY TUNED FOR LATER STATEMENTS AND POSSIBLE WARNINGS FOR THESE STORMS FROM YOUR NATIONAL WEATHER SERVICE. DFM
The office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 6:00 PM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 60 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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.