Alert archive / Missouri / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 57, NWS St. Louis, MO

August 1, 1986Wright County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Aug 1, 1986, 8:18 PM CDT for Wright County, Missouri. It was in force for 57 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 1, 1986, 8:18 PM CDT (01:18 UTC)
Expired
Aug 1, 1986, 9:15 PM CDT
In force
57 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Wright County, MO

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Aug 1, 8:28 PM CDTThunderstorm Wind 0Wright, MO
Aug 1, 8:50 PM CDTThunderstorm Wind 0Wright, MO

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Springfield, MO (KUMN), launched 00:00Z, 1.3 hours before the alert went out and 125 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, Springfield, MO at 00:00Z on 1986-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 542 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, Springfield, MO at 00:00Z on 1986-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
542 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
2282 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm 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, Aug 1, 7:20 PM CDT, 58 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE COLUMBIA MO
715 PM CDT FRI 1 AUG 1986

AT 710 PM A LARGE AREA OF SHOWERS AND THUNDERSTORMS WAS OVER CENTRAL
MISSOURI. THIS AREA WAS 55 TO 60 MILES WIDE AND EXTENDED FROM 10 MILES
NORTH OF MEXICO TO WARSAW INTO SOUTHWEST MISSOURI. THE STRONGEST
STORMS IN CENTRAL MISSOURI WERE DEVELOPING FROM THE WEST END OF THE
LAKE OF THE OZARKS 10 MILES NORTHWEST OF CAMDENTON TO NEAR HERMITAGE.
NDO SEVERE WEATHER HAS BEEN REPORTED HOWEVER STRONG GUSTY WINDS AND
DANGEROUS LIGHTNING ARE POSSIBLE. THE STORMS WERE MOVING SOUTHEAST
AT 40 MPH.

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 1, 8:18 PM CDTSevere Thunderstorm WarningLSXOzark57 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1986Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.