Alert archive / Minnesota / Tornado Warnings in 1994

Tornado Warning 30, NWS Twin Cities, MN

July 19, 1994Blue Earth County, Waseca County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jul 19, 1994, 8:02 PM CDT for Blue Earth County, Waseca County, Minnesota. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
Jul 19, 1994, 8:02 PM CDT (01:02 UTC)
Expired
Jul 19, 1994, 8:30 PM CDT
In force
28 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Blue Earth County, MN, Waseca County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 1.0 hours before the alert went out and 93 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 1994-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 503 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1994-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.193958Sfc1 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
503 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
682 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
343 m²/s²
Significant tornado parameter
0.8
Supercell composite
7.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KRST 200104
TORRST
MNC013-161-200130-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ROCHESTER MN
802 PM CDT TUE JUL 19 1994
 
THE NATIONAL WEATHER SERVICE IN ROCHESTER MN HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  830 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL MINNESOTA
 
   ...EASTERN BLUE EARTH COUNTY...WESTERN WASECA COUNTY
 
...AT 757PM...A POSSIBLE TORNADO WAS REPORTED BY A SPOTTER NEAR
PEMBERTON...OR 16 MILES SOUTHEAST OF MANKATO. THIS TORNADO WAS MOVING TO
THE SOUTHEAST. SOME TOWNS IN THE PATH ARE ALMA CITY...WALDORF...AND ST.
CLAIR.
 
JT
 
 
HEAD FOR THE BASEMENT NOW!  DON'T GO OUTSIDE TO LOOK FOR THE
TORNADO...IT COULD BE BEARING DOWN ON YOUR LOCATION.  GET UNDER
SOME STURDY FURNITURE...OR UNDERNEATH A STAIRWAY TO AVOID
WIND BLOWN DEBRIS.  MOBILE HOMES SHOULD BE ABANDONED.
 
 
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 8:35 PM CDTSevere Thunderstorm WarningMPXMower40 min
Jul 19, 8:35 PM CDTSevere Thunderstorm WarningMPXFreeborn31 min

Nearby

Tornado Warnings in Minnesota, 1994Every tornado warning in 1994Tornadoes in 1994

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.