Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 310, NWS Springfield, MO

September 29, 1998Cedar County, St. Clair County, Vernon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Sep 29, 1998, 3:36 AM CDT for Cedar County, St. Clair County, Vernon County, Missouri. It was in force for 49 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
Sep 29, 1998, 3:36 AM CDT (08:36 UTC)
Expired
Sep 29, 1998, 4:25 AM CDT
In force
49 min
Issued by
NWS Springfield, MO
Area
Whole counties

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

The radar

The Springfield radar (KSGF), 88 km from the middle of the area, began a volume at 08:38 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
Sep 29, 3:45 AM CDTThunderstorm WindStockton, MO
Sep 29, 3:54 AM CDTThunderstorm WindMontevallo, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 28, 11:45 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 8.6 hours before the alert went out and 109 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 1998-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 850 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 1998-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 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
850 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
1543 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-1.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSGF 290836 RRA
SVRSGF
MOC039-185-217-290925-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
336 AM CDT TUE SEP 29 1998

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CEDAR COUNTY IN SOUTHWESTERN MISSOURI
  SOUTHWESTERN ST. CLAIR COUNTY IN WEST CENTRAL MISSOURI
  VERNON COUNTY IN WEST CENTRAL MISSOURI

* UNTIL 425 AM CDT

* AT 333 AM CDT DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE
  HAIL THE SIZE OF QUARTERS.  THESE STORMS WERE LOCATED IN A LINE
  FROM 7 MILES SOUTHWEST OF OSCEOLA TO 5 MILES NORTHWEST OF NEVADA
  AND WERE MOVING SOUTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  FROM ELDORADO SPRINGS TO NEVADA BY 345 AM
  STOCKTON TO MONTAVELLO BY 405 AM


A SEVERE THUNDERSTORM WARNING MEANS THAT DAMAGING WINDS AND/OR LARGE
HAIL CAN BE EXPECTED.  SEEK S&HELTER NOW AND REMAIN PROTECTED UNTIL THE
STORM HAS PASSED.


MT/DAS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 29, 12:06 AM CDTSevere Thunderstorm WarningSGFVernon54 min
Sep 29, 12:50 AM CDTSevere Thunderstorm WarningSGFCedar, St. Clair65 min
Sep 29, 12:59 AM CDTSevere Thunderstorm WarningSGFVernon46 min
Sep 29, 4:15 AM CDTSevere Thunderstorm WarningSGFPolk45 min
Sep 29, 4:32 AM CDTSevere Thunderstorm WarningSGFDade48 min
Sep 29, 4:53 AM CDTSevere Thunderstorm WarningSGFDallas, Greene, Lawrence47 min
Sep 29, 5:10 AM CDTSevere Thunderstorm WarningSGFPhelps, Pulaski35 min
Sep 29, 5:10 AM CDTSevere Thunderstorm WarningSGFLaclede35 min
Sep 29, 5:22 AM CDTSevere Thunderstorm WarningSGFChristian, Webster48 min
Sep 29, 5:22 AM CDTSevere Thunderstorm WarningSGFStone48 min
Sep 29, 5:43 AM CDTSevere Thunderstorm WarningSGFDent, Texas62 min
Sep 29, 5:43 AM CDTSevere Thunderstorm WarningSGFDouglas, Ozark, Taney62 min
Sep 29, 5:43 AM CDTSevere Thunderstorm WarningSGFWright62 min
Sep 29, 5:56 AM CDTSevere Thunderstorm WarningSGFShannon64 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1998Every severe thunderstorm warning in 1998

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.