Alert archive / Missouri / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 15, NWS Springfield, MO

May 21, 1987Barton County, Dade County, Jasper County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 21, 1987, 8:33 PM CDT for Barton County, Dade County, Jasper County, Missouri. It was in force for 57 min. 3 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
May 21, 1987, 8:33 PM CDT (01:33 UTC)
Expired
May 21, 1987, 9:30 PM CDT
In force
57 min
Issued by
NWS Springfield, MO
Area
Whole counties

Counties Barton County, MO, Dade County, MO, Jasper 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
May 21, 8:40 PM CDTHail 1.75Barton, MO
May 21, 8:45 PM CDTHail 1Dade, MO
May 21, 8:45 PM CDTThunderstorm Wind 52Jasper, 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, 1.6 hours before the alert went out and 63 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 1987-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2724 joules per kilogram.LCLEL10008507005003002001001 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 1987-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
2724 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1339 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

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, May 21, 3:52 PM CDT, 4 hours 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
350PM CDT THU MAY 21 1987

AN AREA OF HEAVY THUNDERSTORMS HAVE DEVELOPED FROM 45 MILES NORTHEAST OF
SPRINGFIELD MISSOURI NEAR BUFFALO TO NEAR AVA OR 25 MILES SOUTHEAST OF
SPRINGFIELD MISSOURI.
THESE STORMS WERE MOVING TO THE NORTHEAST AT 25 MPH AND MAY CONTAIN SMALL
HAIL AND BREIF HEAVY RAIN.

The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 7:47 PM CDTSevere Thunderstorm WarningSGFDade58 min
May 21, 9:15 PM CDTSevere Thunderstorm WarningSGFShannon60 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1987Every severe thunderstorm warning in 1987

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.