Alert archive / Minnesota / Flash Flood Warnings in 1990
Flash Flood Warning 3, NWS Duluth, MN
NWS Duluth, MN issued this flash flood warning at Sep 6, 1990, 2:36 AM CDT for Carlton County, Minnesota. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Sep 6, 1990, 2:36 AM CDT (07:36 UTC)
- Expired
- Sep 6, 1990, 5:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Duluth, MN
- Area
- Whole counties
County Carlton 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
Minneapolis, MN (KSTC), launched 00:00Z, 7.6 hours before the alert went out and 207 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
- 3941 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 933 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 228 m²/s²
- 0-3 km storm-relative helicity
- 306 m²/s²
- Significant tornado parameter
- 4.6
- Supercell composite
- 25.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDLH 060736
FFWDLH
MNC017-061045-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DULUTH MN
236 AM CDT THU SEP 6 1990
THE NATIONAL WEATHER SERVICE IN DULUTH HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 545 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTHEAST MINNESOTA
...CARLTON
RADAR INDICATES THAT THE RAINS THAT HAVE BEEN CAUSING THE FLOODING IN
CARLTON COUNTY HAVE NOT SHOWN ANY SIGN OF LETTING UP. MANY ROADS HAVE
BECOME COVERED WITH WATER AND SOME WASHOUTS HAVE BEEN REPORTED.
NUMEROUS REPORTS OF BASEMENT FLOODING HAVE BEEN RECEIVED.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY. MOVE TO HIGHER GROUND.What forecasters said that day
The local office's own words before this flash flood 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, Sep 5, 9:34 PM CDT, 5 hours 2 minutes before
MNZ003-004-005-007-008-009-011-012-WIZ001>004-060330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DULUTH MN 930 PM CDT WED SEP 6 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF NORTHERN AND CENTRAL MINNESOTA...NORTHWESTERN WISCONSIN AND WESTERN LAKE SUPERIOR UNTIL MIDNIGHT... AT 925 PM CDT RADAR INDICATED THAT THE THUNDESTORMS...SOME OF WHICH WERE SEVERE...HAVE WEAKENED TO BELOW SEVERE LIMITS DURING THE PAST HALF HOUR. HOWEVER...SOME STRONG THUNDERSTORMS WERE STILL OCCURRING FROM IRON COUNTY TO SOUTHERN SAWYER COUNTY IN WISCONSIN TO CENTRAL PINE COUNTY IN MINNESOTA. THESE THUNDERSTORMS HAVE THE POTENTIAL TO CAUSE STRONG GUSTY WINDS... HAIL...FREQUENT LIGHTNING STRoIKES AND HEAVY DOWNPOURS. MOVEMENT WAS TO THE SOUTHEAST AT 40 TO 45 MPH.
Special weather statement, Sep 5, 10:30 PM CDT, 4 hours 6 minutes before
MNZ003-004-005-007-008-009-060430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DULUTH MN 1030 PM CDT WED SEP 6 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF NORTHERN AND CENTRAL MINNESOTA...NORTHWESTERN WISCONSIN AND WESTERN LAKE SUPERIOR UNTIL MIDNIGHT... AT 1025 PM CDT RADAR INDICATED SOME STRONG THUNDERSTORMS OVER PORTIONS OF NORTHEAST MINNESOTA. ONE AREA COVERED MOST OF CARLTON COUNTY AND ONE STRONG THUNDERSTORM WAS IN NORTHWEST ITASCA COUNTY...JUST A LITTLE NORTH OF WINNIBIGOSHISH LAKE. THESE THUNDERSTORMS HAVE THE POTENTIAL TO CAUSE STRONG GUSTY WINDS... HAIL...FREQUENT LIGHTNING STRIKES AND HEAVY DOWNPOURS. THE THUNDERSTORMS IN CARTON COUNTY WERE MOVING TO THE SOUTHEAST AT 35 MPH AND THE THUNDERSTORM IN ITASCA COUNTY WAS MOVING EAST AT 35 MPH.
Special weather statement, Sep 5, 11:33 PM CDT, 3 hours 3 minutes before
MNZ003-004-005-007-008-009-011-012-WIZ001>004- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DULUTH MN 1130 PM CDT WED SEP 6 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF NORTHERN AND CENTRAL MINNESOTA...NORTHWESTERN WISCONSIN AND WESTERN LAKE SUPERIOR UNTIL MIDNIGHT... SHOWERS AND THUNDERSTORMS CONTINUE OVER NORTHEAST MINNESOTA AND NORTHWEST AND NORTH CENTRAL WISCONSIN AT 1130 MPH CDT. A LINE OF SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAIN...EXTENDED FROM A LITTLE NORTH OF WINNIBIGOSHISH LAKE IN NORTHWEST ITASCA COUNTY OF NORTHERN MINNESOTA TO THE DULUTH/SUPERIOR AREA AND ON TO THE VICINITY OF PARK FALLS IN NORTH CENTRAL WISCSONSIN. THIS LINE WAS ROUGHLY 30 MILES WIDE. THE STRENGTH OF THE THUNDERSTORMS HAS CONTINUED TO DECREASE DURING THE PAST HOUR AND THE SEVERE THUNDERSTORM WATCH IS NOT EXPECTED TO BE EXTENDED. HOWEVER...THE THUNDERSTORMS MAY STILL CAUSE SOME STRONG GUSTY WINDS...HAIL...FREEQUENT LIGHTN"ING STRIKES AND HEAVY DOWNPOURS.
Special weather statement, Sep 5, 11:40 PM CDT, 2 hours 56 minutes before
MNZ003-004-005-007-008-009-011-012-WIZ001>004-060530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DULUTH MN 1130 PM CDT WED SEP 6 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF NORTHERN AND CENTRAL MINNESOTA...NORTHWESTERN WISCONSIN AND WESTERN LAKE SUPERIOR UNTIL MIDNIGHT... SHOWERS AND THUNDERSTORMS CONTINUE OVER NORTHEAST MINNESOTA AND NORTHWEST AND NORTH CENTRAL WISCONSIN AT 1130 PM CDT. A LINE OF SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAIN...EXTENDED FROM A LITTLE NORTH OF WINNIBIGOSHISH LAKE IN NORTHWEST ITASCA COUNTY OF NORTHERN MINNESOTA TO THE DULUTH/SUPERIOR AREA AND ON TO THE VICINITY OF PARK FALLS IN NORTH CENTRAL WISCSONSIN. THIS LINE WAS ROUGHLY 30 MILES WIDE. THE STRENGTH OF THE THUNDERSTORMS HAS CONTINUED TO DECREASE DURING THE PAST HOUR AND THE SEVERE THUNDERSTORM WATCH IS NOT EXPECTED TO BE EXTENDED. HOWEVER...THE THUNDERSTORMS MAY STILL CAUSE SOME STRONG GUSTY WINDS...HAIL...FREQUE#NT LIGHTNING STRIKES AND HEAVY DOWNPOURS.
Special weather statement, Sep 6, 12:18 AM CDT, 2 hours 18 minutes before
MNZ003-004-005-007-008-009-011-012-WIZ001>004-060615- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DULUTH MN 1215 AM CDT THU SEP 6 1990 AT 1210 PM CDT NUMEROUS SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAIN CONTINUED OVER PORTIONS OF NORTHEAST MINNESOTA...NORTHWEST WISCONSIN AND WESTERN LAKE SUPERIOR. THESE SHOWERS AND THUNDERSTORMS WERE IN A LINE ABOUT 40 MILES WIDE WHICH EXTENDED FROM 65 MILES NORTHWEST OF DULUTH TO THE RHINELANDER AREA OF NORTH CENTRAL WISCONSIN. THE THUNDERSTORMS STILL HAVE THE POTENTIAL TO PRODUCE STRONG GUSTY WINDS...HAIL..FREQUENT LIGHTNING STRIKES AND HEAVY DOWNPOURS. MOVEMENT OF THE SHOWERS AND THUNDERSTORMS WAS TO THE SOUTHEAST AT 30 TO 35 MPH.
Special weather statement, Sep 6, 12:25 AM CDT, 2 hours 11 minutes before
MNZ003-004-005-007-008-009-011-012-WIZ001>004-060615- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DULUTH MN 1215 AM CDT THU SEP 6 1990 AT 1210 AM CDT NUMEROUS SHOWERS AND THUNDERSTORMS...SOME WITH HEAVY RAIN CONTINUED OVER PORTIONS OF NORTHEAST MINNESOTA...NORTHWEST WISCONSIN AND WESTERN LAKE SUPERIOR. THESE SHOWERS AND THUNDERSTORMS WERE IN A LINE ABOUT 40 MILES WIDE WHICH EXTENDED FROM 65 MILES NORTHWEST OF DULUTH TO THE RHINELANDE$R AREA OF NORTH CENTRAL WISCONSIN. THE THUNDERSTORMS STILL HAVE THE POTENTIAL TO PRODUCE STRONG GUSTY WINDS...HAIL..FREQUENT LIGHTNING STRIKES AND HEAVY DOWNPOURS. MOVEMENT OF THE SHOWERS AND THUNDERSTORMS WAS TO THE SOUTHEAST AT 30 TO 35 MPH.
The office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 7:10 PM CDT | Severe Thunderstorm Warning | DLH | Pine | 65 min |
| Sep 5, 8:00 PM CDT | Severe Thunderstorm Warning | DLH | Pine | 60 min |
| Sep 6, 12:44 AM CDT | Flash Flood Warning | DLH | Carlton | 2 hr |
| Sep 6, 6:00 AM CDT | Flash Flood Warning | DLH | Carlton | 2 hr |
| Sep 6, 6:00 AM CDT | Flash Flood Warning | DLH | Saint Louis | 2 hr |
Nearby
Flash Flood Warnings in Minnesota, 1990Every flash flood 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.