Alert archive / Missouri / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 165, NWS Springfield, MO

June 28, 1999St. Clair County, Vernon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jun 28, 1999, 1:56 AM CDT for St. Clair County, Vernon County, Missouri. It was in force for 59 min. 1 report 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
Jun 28, 1999, 1:56 AM CDT (06:56 UTC)
Expired
Jun 28, 1999, 2:55 AM CDT
In force
59 min
Issued by
NWS Springfield, MO
Area
Whole counties

Counties St. Clair County, MO, Vernon County, MO

The radar

The Springfield radar (KSGF), 98 km from the middle of the area, began a volume at 06:57 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 28, 2:15 AM CDTThunderstorm WindNevada, 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.9 hours before the alert went out and 118 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 1999-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1696 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 1999-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
1696 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1206 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
302 m²/s²
Significant tornado parameter
0.9
Supercell composite
13.1

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.

NWS Springfield, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 28, 12:47 AM CDT, 1 hour 9 minutes earlier.

Area forecast discussion, Jun 28, 12:47 AM CDT, 1 hour 9 minutes before
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In the hours before

Local storm report, Jun 27, 9:25 PM CDT, 4 hours 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
925 PM CDT SUN JUN 27 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0750 PM    2 NW STOCKTON             MO    1 INCH HAIL
06/27/99   CEDAR
Local storm report, Jun 28, 12:10 AM CDT, 1 hour 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1210 AM CDT MON JUN 28 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1145 PM    15 SW VERSAILLES          MO    WIND DAMAGE
06/27/99   MORGAN                          TREE BLOWN DOWN ONTO
                                           RESIDENCE IN IVY BEND
                                           AREA ALONG
                                           MORGAN/CAMDEN COUNTY
                                           BORDER.
Local storm report, Jun 28, 12:10 AM CDT, 1 hour 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1210 AM CDT MON JUN 28 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1145 PM    15 SW VERSAILLES          MO    WIND DAMAGE
06/27/99   MORGAN                          TREE BLOWN DOWN ONTO
                                           RESIDENCE IN IVY BEND
                                           AREA ALONG
                                           MORGAN/CAMDEN COUNTY
                                           BORDER.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 7:33 PM CDTSevere Thunderstorm WarningSGFCedar62 min
Jun 27, 10:58 PM CDTSevere Thunderstorm WarningSGFBenton37 min
Jun 27, 11:30 PM CDTSevere Thunderstorm WarningSGFCamden, Morgan45 min
Jun 27, 11:32 PM CDTFlash Flood WarningSGFBenton, Morgan4 hr
Jun 28, 12:04 AM CDTFlash Flood WarningSGFMiller4 hr
Jun 28, 1:00 AM CDTSevere Thunderstorm WarningSGFCamden, Laclede30 min
Jun 28, 2:27 AM CDTTornado WarningSGFVernon48 min
Jun 28, 2:30 AM CDTSevere Thunderstorm WarningSGFCedar55 min
Jun 28, 2:58 AM CDTSevere Thunderstorm WarningSGFBarton, Dade62 min
Jun 28, 3:22 AM CDTFlash Flood WarningSGFBenton, Hickory, St. Clair6 hr
Jun 28, 3:22 AM CDTFlash Flood WarningSGFCedar, Vernon6 hr
Jun 28, 5:23 AM CDTFlash Flood WarningSGFDade4 hr
Jun 28, 8:48 AM CDTFlash Flood WarningSGFCedar, Dade, St. Clair, Vernon6 hr
Jun 28, 8:48 AM CDTFlash Flood WarningSGFBenton, Hickory6 hr
Jun 28, 9:52 AM CDTSevere Thunderstorm WarningSGFBarton, Cedar, Dade53 min
Jun 28, 10:34 AM CDTFlash Flood WarningSGFBarton, Jasper3 hr
Jun 28, 10:34 AM CDTFlash Flood WarningSGFNewton3 hr
Jun 28, 10:47 AM CDTSevere Thunderstorm WarningSGFBarry, Jasper, Lawrence, Newton48 min
Jun 28, 2:59 PM CDTFlash Flood WarningSGFBenton6 hr
Jun 28, 9:14 AM CDTFlash Flood WarningSGFBourbon, Crawford4 hr
Jun 28, 10:04 AM CDTFlash Flood WarningSGFCherokee3 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 1999Every severe thunderstorm warning in 1999

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; radar from the NEXRAD Level II archive.