Alert archive / Missouri / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 15, NWS St. Louis, MO

April 3, 2001Iron County, Washington County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 3, 2001, 2:16 PM CDT for Iron County, Washington County, Missouri. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Apr 3, 2001, 2:16 PM CDT (19:16 UTC)
Expired: Apr 3, 2001, 3:00 PM CDT
In force: 44 min
Issued by: NWS St. Louis, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Iron County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 106 km from the middle of the area, began a volume at 19:18 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, 7.3 hours before the alert went out and 277 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: 1171 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 650 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 168 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.3

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLSX 031919
SVRSTL

MOC093-221-032000-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
216 PM CDT TUE APR 3 2001

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI
  NORTHERN IRON COUNTY IN SOUTHEAST MISSOURI

* UNTIL 300 PM CDT

* AT 216 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES NORTH OF COURTOIS...MOVING SOUTHEAST AT
  40 MPH.

* LOCATIONS IN THE PATH...
  COURTOIS
  BELGRADE
  CALEDONIA
  BELLEVIEW
  PILOT KNOB
  IRONTON

AT 200 PM CDT THE LAW ENFORCEMENT REPORTED DIME SIZED HAIL IN 
STEELVILLE.

THIS THUNDERSTORM IS CAPABLE OF PRODUCING LARGE HAIL THAT CAN CAUSE
SERIOUS INJURY AND EXTENSIVE PROPERTY DAMAGE. TAKE SHELTER INSIDE OF
A STURDY BUILDING NOW!

& LAT...LON 3797 9111 3777 9113 3761 9117 3757 9055
          3764 9055 3766 9064 3786 9064

CARNEY/PRZYBYLINSKI

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 11:47 AM CDT	Severe Thunderstorm Warning	LSX	Cole	43 min
Apr 3, 12:12 PM CDT	Flash Flood Warning	LSX	Moniteau	4 hr
Apr 3, 12:30 PM CDT	Severe Thunderstorm Warning	LSX	Osage	45 min
Apr 3, 12:35 PM CDT	Severe Thunderstorm Warning	LSX	Cole	40 min
Apr 3, 1:35 PM CDT	Severe Thunderstorm Warning	LSX	Crawford	40 min
Apr 3, 3:25 PM CDT	Severe Thunderstorm Warning	LSX	Madison	50 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2001 Every severe thunderstorm warning in 2001

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.