Alert archive / Minnesota / Tornado Warnings in 1994

Tornado Warning 29, NWS Twin Cities, MN

July 19, 1994Anoka County, Chisago County, Isanti County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jul 19, 1994, 4:39 PM CDT for Anoka County, Chisago County, Isanti County, Minnesota. It was in force for 51 min.

The area

The counties it named.

The facts

Issued
Jul 19, 1994, 4:39 PM CDT (21:39 UTC)
Expired
Jul 19, 1994, 5:30 PM CDT
In force
51 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Anoka County, MN, Chisago County, MN, Isanti County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 9.7 hours before the alert went out and 75 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 12:00Z on 1994-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 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 12:00Z on 1994-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.1939Sfc1 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
44 J/kg
Mixed-layer CIN
-204 J/kg
Mixed-layer LCL
892 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 192138
TORMSP
MNC025-059-003-192230-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
439 PM CDT TUE JUL 19 1994
 
THE NATIONAL WEATHER SERVICE IN MINNEAPOLIS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  530 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL MINNESOTA
 
   ...CHISAGO COUNTY...EASTERN ISANTI COUNTY...NORTHEAST ANOKA COUNTY
 
AT 435 PM CDT WEATHER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF
PRODUCING A TORNADO IN EXTREME NORTHEAST ANOKA COUNTY RIGHT NEAR THE
ANOKA AND ISANTI COUNTY BORDER. THIS STORM WILL BE MOVING TOWARD
WEBER...SPRING LAKE AND NORTH BRANCH.
 
LARGE HAIL AND DANGEROUS LIGHTNING CAN ALSO BE EXPECTED WITH
 STORM.
 
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR STAIRWAY TO AVOID COLLAPSING
WALLS.
EDWARDS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 8:13 PM CDTSevere Thunderstorm WarningMPXStearns47 min
Jul 19, 1:31 AM CDTSevere Thunderstorm WarningMPXBenton, Sherburne, Stearns59 min
Jul 19, 1:57 AM CDTSevere Thunderstorm WarningMPXWright48 min
Jul 19, 2:26 AM CDTSevere Thunderstorm WarningMPXCarver, McLeod39 min
Jul 19, 2:37 AM CDTSevere Thunderstorm WarningMPXHennepin54 min
Jul 19, 3:49 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet41 min
Jul 19, 4:04 PM CDTTornado WarningMPXMille Lacs26 min
Jul 19, 4:15 PM CDTTornado WarningMPXBenton30 min
Jul 19, 5:27 PM CDTSevere Thunderstorm WarningMPXCarver48 min
Jul 19, 5:31 PM CDTSevere Thunderstorm WarningMPXChisago44 min
Jul 19, 5:48 PM CDTSevere Thunderstorm WarningMPXHennepin42 min
Jul 19, 6:11 PM CDTSevere Thunderstorm WarningMPXChisago49 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.