Alert archive / Missouri / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 56, NWS St. Louis, MO

April 16, 2000Gasconade County, Montgomery County, Osage County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 16, 2000, 1:00 PM CDT for Gasconade County, Montgomery County, Osage County, Missouri. It was in force for 35 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: Apr 16, 2000, 1:00 PM CDT (18:00 UTC)
Expired: Apr 16, 2000, 1:35 PM CDT
In force: 35 min
Issued by: NWS St. Louis, MO
Area: Whole counties

Counties Gasconade County, MO, Montgomery County, MO, Osage County, MO

The radar

The St Louis radar (KLSX), 81 km from the middle of the area, began a volume at 17:55 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

Time	Report	Where	Remark
Apr 16, 1:40 PM CDT	Hail 0.75	Rosebud, MO	The County Sheriff reported 3/4 inch hail.

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 12:00Z, 6.0 hours before the alert went out and 271 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: 126 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 730 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 195 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLSX 161801
SVRSTL
MOC073-139-151-161835-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
100 PM CDT SUN APR 16 2000

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN GASCONADE COUNTY IN EAST CENTRAL MISSOURI
  SOUTHERN MONTGOMERY COUNTY MISSOURI IN EAST CENTRAL MISSOURI
  NORTHEASTERN OSAGE COUNTY IN CENTRAL MISSOURI

* UNTIL 135 PM CDT

* AT 1 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR CHAMOIS... MOVING NORTHEAST AT 20 MPH.

* LOCATIONS THAT WILL BE AFFECTED...
  HERMANN
  MORRISON

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND GUSTS IN EXCESS OF 60
MPH...DAMAGING HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE
TO AN INTERIOR ROOM ON THE LOWEST FLOOR OR YOUR HOME OR BUSINESS.
HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE
WATER COVERS THE ROAD.
=
TRUETT

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 16, 1:28 PM CDT	Severe Thunderstorm Warning	LSX	Gasconade	32 min
Apr 16, 2:01 PM CDT	Severe Thunderstorm Warning	LSX	Franklin	29 min
Apr 16, 2:23 PM CDT	Severe Thunderstorm Warning	LSX	Warren	52 min
Apr 16, 2:30 PM CDT	Severe Thunderstorm Warning	LSX	Ralls	50 min
Apr 16, 2:36 PM CDT	Tornado Warning	LSX	Warren	34 min
Apr 16, 2:49 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles	46 min
Apr 16, 2:53 PM CDT	Tornado Warning	LSX	Saint Charles	32 min
Apr 16, 2:59 PM CDT	Severe Thunderstorm Warning	LSX	Crawford, Washington	51 min
Apr 16, 3:24 PM CDT	Tornado Warning	LSX	Saint Charles, Saint Louis	46 min
Apr 16, 3:26 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson	49 min
Apr 16, 3:36 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson	49 min
Apr 16, 3:46 PM CDT	Severe Thunderstorm Warning	LSX	Pike	49 min
Apr 16, 4:13 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Saint Louis	47 min
Apr 16, 5:04 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln	51 min
Apr 16, 6:32 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles	43 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2000 Every severe thunderstorm warning in 2000

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.