Alert archive / Missouri / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 53, NWS Springfield, MO

April 20, 2002Cedar County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 20, 2002, 3:33 PM CDT for Cedar County, Missouri. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 20, 2002, 3:33 PM CDT (20:33 UTC)
Expired: Apr 20, 2002, 4:00 PM CDT
In force: 27 min
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

County Cedar County, MO

The radar

The Springfield radar (KSGF), 72 km from the middle of the area, began a volume at 20:34 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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 8.6 hours before the alert went out and 94 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 393 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 585 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: -1 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KSGF 202033
SVRSGF
MOC039-202100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
333 PM CDT SAT APR 20 2002

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CEDAR COUNTY IN SOUTHWEST MISSOURI

* UNTIL 400 PM CDT

* AT 329 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING HAIL UP TO GOLF BALL
  SIZE...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED 10 MILES EAST OF SHELDON...OR 18 MILES SOUTHEAST OF
  NEVADA...AND MOVING EAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   STOCKTON BY 350 PM CDT.

THE TOWNS OF OLYMPIA...JERICO SPRINGS...WAGONER...FILLEY AND UMBER
VIEW HEIGHTS ARE ALSO IN THE PATH OF THIS STORM.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 3785 9406 3757 9416 3760 9362 3786 9358

RUNNELS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 20, 3:07 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	38 min
Apr 20, 3:18 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	27 min
Apr 20, 4:08 PM CDT	Severe Thunderstorm Warning	SGF	Polk	22 min
Apr 20, 4:29 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Webster	46 min
Apr 20, 5:00 PM CDT	Severe Thunderstorm Warning	SGF	Laclede, Wright	30 min
Apr 20, 6:22 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Maries, Miller, Pulaski	23 min
Apr 20, 6:25 PM CDT	Flash Flood Warning	SGF	Camden, Maries, Miller, Phelps, Pulaski	6 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2002 Every severe thunderstorm warning in 2002

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.