Alert archive / Missouri / Tornado Warnings in 1999

Tornado Warning 21, NWS Springfield, MO

June 1, 1999Webster County, Missouri

NWS Springfield, MO issued this tornado warning at Jun 1, 1999, 4:49 PM CDT for Webster County, Missouri. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 1, 1999, 4:49 PM CDT (21:49 UTC)
Expired
Jun 1, 1999, 5:40 PM CDT
In force
51 min
Issued by
NWS Springfield, MO
Area
Whole counties

County Webster County, MO

The radar

The Springfield radar (KSGF), 47 km from the middle of the area, began a volume at 21:48 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 1, 3:45 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.8 hours before the alert went out and 92 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 12:00Z on 1999-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 1999-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 261 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
20 J/kg
Mixed-layer CIN
-321 J/kg
Mixed-layer LCL
1581 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
261 m²/s²
0-3 km storm-relative helicity
270 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.

252 
WFUS1 KSGF 012150 RRA
TORSGF
MOC059-167-225-012240-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
449 PM CDT TUE JUN 1 1999

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN DALLAS COUNTY IN SOUTHWESTERN MISSOURI
  SOUTHEASTERN POLK COUNTY IN SOUTHWESTERN MISSOURI
  NORTHERN WEBSTER COUNTY IN SOUTHWESTERN MISSOURI

* UNTIL 540 PM CDT

* AT 448 PM DOPPLER RADAR INDICATED A DEVELOPING TORNADO 10 MILES
  SOUTHEAST OF BOLIVAR NEAR BRIGHTON.  THIS STORM WAS MOVING
  NORTHEAST AT 30.

* THE TORNADO IS EXPECTED TO BE NEAR...
  PLEASANT HOPE BY 5 PM
  OLIVE AND MARCH BY 515 PM
  ELKLAND AND CHARITY BY 520 PM

A TORNADO HAS BEEN IDENTIFIED BY RADAR.  FOR YOUR OWN SAFETY...MOVE TO
A DESIGNATED SHELTER OR INTO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR BUILDING.

GAEDE/RUNNELS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 1:52 AM CDTFlash Flood WarningSGFVernon3 hr
Jun 1, 3:27 AM CDTSevere Thunderstorm WarningSGFJasper33 min
Jun 1, 3:50 AM CDTFlash Flood WarningSGFBarton, Dade, Jasper4 hr
Jun 1, 3:50 AM CDTFlash Flood WarningSGFCedar4 hr
Jun 1, 4:56 AM CDTSevere Thunderstorm WarningSGFOzark64 min
Jun 1, 3:24 PM CDTSevere Thunderstorm WarningSGFCedar, Polk66 min
Jun 1, 3:34 PM CDTSevere Thunderstorm WarningSGFDade36 min
Jun 1, 3:38 PM CDTSevere Thunderstorm WarningSGFCamden, Laclede67 min
Jun 1, 4:03 PM CDTTornado WarningSGFCamden, Laclede52 min
Jun 1, 4:16 PM CDTTornado WarningSGFMiller34 min
Jun 1, 4:30 PM CDTTornado WarningSGFMiller, Pulaski65 min
Jun 1, 4:49 PM CDTTornado WarningSGFDallas, Polk51 min
Jun 1, 5:15 PM CDTSevere Thunderstorm WarningSGFNewton65 min
Jun 1, 5:17 PM CDTTornado WarningSGFMaries63 min
Jun 1, 5:33 PM CDTTornado WarningSGFPhelps, Pulaski62 min
Jun 1, 5:55 PM CDTSevere Thunderstorm WarningSGFTexas35 min
Jun 1, 5:57 PM CDTSevere Thunderstorm WarningSGFGreene33 min
Jun 1, 6:02 PM CDTSevere Thunderstorm WarningSGFDouglas48 min
Jun 1, 6:40 PM CDTTornado WarningSGFPhelps20 min
Jun 1, 6:51 PM CDTSevere Thunderstorm WarningSGFPulaski34 min

Nearby

Tornado Warnings in Missouri, 1999Every tornado warning in 1999Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.