Alert archive / Minnesota / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 112, NWS Twin Cities, MN

July 19, 1986Meeker County, Wright County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 19, 1986, 12:42 AM CDT for Meeker County, Wright County, Minnesota. It was in force for 48 min.

The area

The counties it named.

The facts

Issued: Jul 19, 1986, 12:42 AM CDT (05:42 UTC)
Expired: Jul 19, 1986, 1:30 AM CDT
In force: 48 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

Counties Meeker County, MN, Wright 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, 5.7 hours before the alert went out and 61 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 235 J/kg
Mixed-layer CIN: -264 J/kg
Mixed-layer LCL: 1882 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: 126 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 190542
SVRMSP
MNC171-059-093-009-095-141-190630-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MINNEAPOLIS MN
1242 AM CDT SAT JUL 19 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 130 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

CENTRAL MINNESOTA...WRIGHT...WESTERN ISANTI...EASTERN MEEKER...
 BENTON...MILLE LACS AND SHERBURNE

AT 1240 AM SEVERAL SEVERE THUNDERSTORMS WERE INDICATED BY RADAR
IN EASTERN BENTON COUNTY AND WESTERN SHERBURNE COUNTY OF CENTRAL
MINNESOTA.  THESE THUNDERSTORMS WERE MOVING TO THE EAST AT 35
MILES AN HOUR.  CITIES INCLUDED IN THIS WARNING ARE PRINCETON
...ELK RIVER...BUFFALO...BETHEL...KINGSTON...AND FOLEY.

REMEMBER SEVERE THUNDERSTORMS PRODUCE STRONG DAMAGING WINDS..LARGE
HAIL AND FREQUENT LIGHTNING STRIKES. ALSO SEVERE THUNDERSTORMS CAN
AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE
WARNING..SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO A PLACE OF
SAFETY IF ONE IS SPOTTED.

MILLER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 7:06 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	54 min
Jul 19, 12:42 AM CDT	Severe Thunderstorm Warning	MPX	Benton, Mille Lacs, Sherburne	48 min
Jul 19, 12:42 AM CDT	Severe Thunderstorm Warning	MPX	Isanti	48 min
Jul 19, 1:15 AM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin	60 min
Jul 19, 1:15 AM CDT	Severe Thunderstorm Warning	MPX	Anoka, Isanti	60 min
Jul 19, 1:32 AM CDT	Severe Thunderstorm Warning	MPX	Washington	58 min
Jul 19, 1:32 AM CDT	Severe Thunderstorm Warning	MPX	Chisago	58 min
Jul 19, 1:32 AM CDT	Severe Thunderstorm Warning	MPX	Ramsey	58 min
Jul 19, 2:09 AM CDT	Severe Thunderstorm Warning	MPX	Brown, Nicollet	51 min
Jul 19, 2:51 AM CDT	Severe Thunderstorm Warning	MPX	Le Sueur	54 min
Jul 19, 5:43 AM CDT	Severe Thunderstorm Warning	MPX	Fillmore, Houston, Winona	47 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1986 Every severe thunderstorm warning in 1986

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.