Alert archive / Minnesota / Flash Flood Warnings in 1993

Flash Flood Warning 9, NWS Twin Cities, MN

June 17, 1993Sibley County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jun 17, 1993, 1:37 AM CDT for Sibley County, Minnesota. It was in force for 113 min.

The area

The counties it named.

The facts

Issued
Jun 17, 1993, 1:37 AM CDT (06:37 UTC)
Expired
Jun 17, 1993, 3:30 AM CDT
In force
113 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Sibley County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 6.6 hours before the alert went out and 58 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 1993-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 186 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 1993-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
186 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
608 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMSP 170637
FFWMSP
MNC129-143-127-170830-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
137 AM CDT THU JUN 17 1993
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  330 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL MINNESOTA
 
   ...SOUTHERN RENVILLE COUNTY...SIBLEY COUNTY
 
IN SOUTHWEST MINNESOTA
 
   ...REDWOOD COUNTY
 
AT 135 AM...RADAR INDICATED A LINE OF THUNDERSTORMS PRODUCING
TORRENTIAL RAINS MOVING ACROSS REDWOOD...SOUTHERN RENVILLE AND
ALL OF SIBLEY COUNTY. AT 120 AM...THE MINNESOTA DEPARTMENT OF
TRANSPORTATION REPORTED MOBILE HOMES BEING SWEPT AWAY IN THE
MORTON AREA...ABOUT 10 MILES EAST OF REDWOOD FALLS.
 
SOME CITIES INCLUDED IN THE WARNING ARE...MORGAN...LAMBERTON
AND WALNUT GROVE IN REDWOOD COUNTY...FAIRFAX IN RENVILLE COUNTY
AND GIBBON...GAYLORD AND HENDERSON IN SIBLEY COUNTY.
 
FLOODING IS OCCURRING OR IMMINENT.  YOU SHOULD KNOW THE LOCATION
OF NEARBY STREAMS OR CREEKS...SINCE THEY CAN BECOME KILLERS IN
HEAVY RAINS.  CAMPERS SHOULD MOVE TO HIGH GROUND.  DO NOT TRY TO
WALK THROUGH MOVING WATER THAT IS ABOVE YOUR KNEES...YOU MAY LOSE
YOUR BALANCE AND BE SWEPT AWAY.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARD TO SEE THE
DANGERS OF FLOODING.  MANY DEATHS OCCUR AT NIGHT WHEN PEOPLE TRY
TO CROSS FLOWING STREAMS.  THE WATER MAY BE MUCH DEEPER THAN YOU
REALIZE...OR THE WATER MAY HAVE UNDERMINED THE ROAD.
 JPR/DWE
&

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, Jun 16, 11:48 PM CDT, 1 hour 49 minutes before
MNZ014-170700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA
1148 PM CDT WED JUN 16 1993

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR KANDIYOHI AND
MEEKER COUNTIES OF CENTRAL MINNESOTA UNTIL 100 AM...

AT 1145 PM THUNDERSTORMS WITH LIGHT RAIN CONTINUED FROM NEAR ST CLOUD
SOUTH TO 15 MILES SOUTH OF LITCHFIELD IN MEEKER COUNTY. THESE
THUNDERSTORMS WERE PART OF A MUCH LARGER AREA OF STRONG THUNDERSTORMS
WITH HEAVY RAIN THAT CONTINUED IN SOUTHERN MINNESOTA.

PEOPLE IN MEEKER...SHERBURNE AND EASTERN STEARNS COUNTIES CAN EXPECTED
THESE THUNDERSTORMS TO CONTINUE UNTIL 200 AM.

HAYS

NNNN
Special weather statement, Jun 16, 11:48 PM CDT, 1 hour 49 minutes before
MNZ014-170700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST CLOUD MINNESOTA
1148 PM CDT WED JUN 16 1993

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR KANDIYOHI AND
MEEKER COUNTIES OF CENTRAL MINNESOTA UNTIL 100 AM...

AT 1145 PM THUNDERSTORMS WITH LIGHT RAIN CONTINUED FROM NEAR ST CLOUD
SOUTH TO 15 MILES SOUTH OF LITCHFIELD IN MEEKER COUNTY. THESE
THUNDERSTORMS WERE PART OF A MUCH LARGER AREA OF STRONG THUNDERSTORMS
WITH HEAVY RAIN THAT CONTINUED IN SOUTHERN MINNESOTA.

PEOPLE IN MEEKER...SHERBURNE AND EASTERN STEARNS COUNTIES CAN EXPECTED
THESE THUNDERSTORMS TO CONTINUE UNTIL 200 AM.

HAYS

NNNN
Special weather statement, Jun 16, 11:59 PM CDT, 1 hour 38 minutes before
MNZ015-016-017-018-019-WIZ003-006-170700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1159 PM CDT WED JUN 16 1993

...URBAN AND SMALL STREAM FLOOD ADVISORY FOR ALL OF THE SEVEN
COUNTY TWIN CITIES METROPOLITAN AREA UNTIL 1 AM...

...TORRENTIAL RAINS MOVING ACROSS PARTS OF THE TWIN CITIES AS
WELL AS A PART OF SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN...

AT 1150 PM...RADAR CONTINUED TO SHOW A LARGE AREA OF THUNDERSTORMS
PRODUCING TORRENTIAL DOWNPOURS...PEA SIZE HAIL AND DEADLY LIGHTNING
MOVING ACROSS THE SAME GENERAL AREA OF SOUTHWEST...INTO EAST CENTRAL
MINNESOTA AS WELL AS WEST CENTRAL WISCONSIN. A LINE OF STORMS STRETCHED
FROM THE SOUTHWEST MINNESOTA CORNER NEAR PIPESTONE AND MARSHALL...
TOWARD REDWOOD FALLS...GLENCOE AND THE TWIN CITIES AND AS FAR EAST
INTO WISCONSIN AS EAU CLAIRE AND CHIPPEWA FALLS.

RAINFALL RATES HAVE BEEN RANGING IN EXCESS OF 1.5 INCHES PER HOUR
ALONG WITH WIND GUSTS IN THE 40 TO 50 MILE AN HOUR RANGE. MOVEMENT
OF THE STORMS WAS TO THE EAST AT 25 MILES AN HOUR. THE THUNDERSTORMS
HAVE BEEN MOVING OVER THE SAME GENERAL AREA OF SOUTHWEST AND CENTRAL
MINNESOTA FOR MUCH OF THE EVENING CAUSING NUMEROUS REPORTS OF FLOODED
ROADWAYS.

PERSONS ARE URGED TO STAY INDOORS UNTIL THE STORMS HAVE PASSED.
HIGHWAY AND STREET FLOODING IS LIKELY SO MOTORISTS ARE URGED NOT TO
DRIVE THROUGH ROADWAYS COVERED WITH WATER.

A FLASH FLOOD WATCH REMAINS IN EFFECT FOR PORTIONS OF SOUTHWEST AND
CENTRAL MINNESOTA UNTIL 4 AM AND A SEVERE THUNDERSTORM WATCH IS
IN EFFECT UNTIL 1 AM FOR A PORTION OF SOUTHERN MINNESTA.
 DWE
Special weather statement, Jun 17, 12:00 AM CDT, 1 hour 37 minutes before
MNZ015-016-017-018-019-WIZ003-006-170700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1159 PM CDT WED JUN 16 1993

...URBAN AND SMALL STREAM FLOOD ADVISORY FOR ALL OF THE SEVEN
COU
Special weather statement, Jun 17, 12:55 AM CDT, 42 minutes before
MNZ015-016-017-018-019-WIZ003-006-170800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1255 AM CDT THU JUN 17 1993

...URBAN AND SMALL STREAM FLOOD ADVISORY FOR ALL OF THE SEVEN
COUNTY TWIN CITIES METROPOLITAN AREA UNTIL 1 AM...

...TORRENTIAL RAINS MOVING ACROSS PARTS OF THE TWIN CITIES AS
WELL AS A PART OF SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN...

AT 1240 AM...A BAND OF STRONG THUNDERSTORMS PRODUCING TORRENTIAL
RAINS ALONG WITH SOME PEA SIZE HAIL AND GUSTY WINDS TO 45 MPH EXTENDED
FROM REDWOOD FALLS ACROSS SOUTHERN AND WEST SECTIONS OF THE TWIN CITIES
THEN DOWN TO NEAR OWATONNA AND RED WING. THE BAND OF STORMS EXTENDED INTO
WEST CENTRAL WISCONSIN UP THROUGH PLUM CITY TO NEAR EAU CLAIRE.

RAINFALL RATES OF OVER AN INCH AN HOUR CONTINUE ACROSS MUCH OF THIS AREA
WITH NUMEROUS REPORTS OF LOCALIZED STREET FLOODING RECEIVED.
THE STORMS CONTINUE TO MOVE TO THE EAST AT 25 MILES AN HOUR AND SHOULD
AFFECT MUCH OF THE SOUTH TWIN CITIES METRO AREA EXTENDING OVER TO
EAU CLAIRE IN WEST CENTRAL WISCONSIN THROUGH 3AM.

PERSONS ARE URGED TO STAY INDOORS UNTIL THE STORMS HAVE PASSED.
HIGHWAY AND STREET FLOODING IS LIKELY SO MOTORISTS ARE URGED NOT TO
DRIVE THROUGH ROADWAYS COVERED WITH WATER.

A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE SOUTHERN THIRD OF
MINNESOTA UNTIL 4 AM.
SES
Special weather statement, Jun 17, 12:58 AM CDT, 39 minutes before
MNZ015-016-017-018-019-WIZ003-006-170800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1255 AM CDT THU JUN 17 1993

...URBAN AND SMALL STREAM FLOOD ADVISORY FOR ALL OF THE SEVEN
COUNTY TWIN CITIES METROPOLITAN AREA UNTIL 1 AM...

...TORRENTIAL RAINS MOVING ACROSS PARTS OF THE TWIN CITIES AS
WELL AS A PART OF SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN...

AT 1240 AM...A BAND OF STRONG THUNDERSTORMS PRODUCING TORRENTIAL
RAINS ALONG WITH SOME PEA SIZE HAIL AND GUSTY WINDS TO 45 MPH EXTENDED
FROM REDWOOD FALLS ACROSS SOUTHERN AND WEST SECTIONS OF THE TWIN CITIES
THEN DOWN TO NEAR OWATONNA AND RED WING. THE BAND OF STORMS EXTENDED INTO
WEST CENTRAL WISCONSIN UP THROUGH PLUM CITY TO NEAR EAU CLAIRE.

RAINFALL RATES OF OVER AN INCH AN HOUR CONTINUE ACROSS MUCH OF THIS AREA
WITH NUMEROUS REPORTS OF LOCALIZED STREET FLOODING RECEIVED.
THE STORMS CONTINUE TO MOVE TO THE EAST AT 25 MILES AN HOUR AND SHOULD
AFFECT MUCH OF THE SOUTH TWIN CITIES METRO AREA EXTENDING OVER TO
EAU CLAIRE IN WEST CENTRAL WISCONSIN THROUGH 3AM.

PERSONS ARE URGED TO STAY INDOORS UNTIL THE STORMS HAVE PASSED.
HIGHWAY AND STREET FLOODING IS LIKELY SO MOTORISTS ARE URGED NOT TO
DRIVE THRO8UGH ROADWAYS COVERED WITH WATER.

A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE SOUTHERN THIRD OF
MINNESOTA UNTIL 4 AM.
SES

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 16, 7:14 PM CDTSevere Thunderstorm WarningMPXRedwood61 min
Jun 16, 7:18 PM CDTSevere Thunderstorm WarningMPXYellow Medicine42 min
Jun 16, 7:50 PM CDTSevere Thunderstorm WarningMPXChippewa40 min
Jun 16, 8:04 PM CDTSevere Thunderstorm WarningMPXRenville41 min
Jun 16, 8:14 PM CDTSevere Thunderstorm WarningMPXMeeker46 min
Jun 16, 8:14 PM CDTSevere Thunderstorm WarningMPXKandiyohi21 min
Jun 16, 8:51 PM CDTSevere Thunderstorm WarningMPXBenton, Stearns39 min
Jun 16, 8:51 PM CDTSevere Thunderstorm WarningMPXSherburne54 min
Jun 16, 9:06 PM CDTSevere Thunderstorm WarningMPXRedwood, Renville39 min
Jun 16, 9:47 PM CDTFlash Flood WarningMPXMcLeod43 min
Jun 16, 9:47 PM CDTFlash Flood WarningMPXSibley118 min
Jun 16, 11:03 PM CDTFlash Flood WarningMPXRenville117 min
Jun 16, 11:46 PM CDTFlash Flood WarningMPXSibley2 hr
Jun 16, 11:46 PM CDTFlash Flood WarningMPXRedwood2 hr
Jun 16, 11:46 PM CDTFlash Flood WarningMPXMcLeod104 min
Jun 17, 1:37 AM CDTFlash Flood WarningMPXRedwood, Renville113 min
Jun 17, 3:35 AM CDTFlash Flood WarningMPXGoodhue, Wabasha2 hr
Jun 17, 3:35 AM CDTFlash Flood WarningMPXRice2 hr
Jun 17, 4:24 AM CDTFlash Flood WarningMPXBlue Earth, Brown, Le Sueur, Nicollet3 hr
Jun 17, 4:24 AM CDTFlash Flood WarningMPXDodge, Rice, Steele, Waseca3 hr
Jun 17, 4:24 AM CDTFlash Flood WarningMPXGoodhue, Olmsted, Wabasha3 hr
Jun 17, 4:24 AM CDTFlash Flood WarningMPXWinona3 hr
Jun 17, 3:39 PM CDTSevere Thunderstorm WarningMPXHouston36 min

Nearby

Flash Flood Warnings in Minnesota, 1993Every flash flood warning in 1993

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.