Alert archive / Missouri / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 13, NWS Kansas City, MO

April 3, 2001Pettis County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Apr 3, 2001, 11:12 AM CDT for Pettis County, Missouri. It was in force for 63 min. 2 reports came from 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, with what was reported inside it.

The facts

Issued: Apr 3, 2001, 11:12 AM CDT (16:12 UTC)
Expired: Apr 3, 2001, 12:15 PM CDT
In force: 63 min
Issued by: NWS Kansas City, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Pettis County, MO

The radar

The Pleasant Hill radar (KEAX), 82 km from the middle of the area, began a volume at 16:15 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 3, 11:15 AM CDT	Hail 1	Green Ridge, MO
Apr 3, 11:22 AM CDT	Hail 2	Green Ridge, 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.

Issued	Product	Office	Lasted
Apr 3, 8:00 AM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 4.2 hours before the alert went out and 202 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.

610 
WUUS53 KEAX 031614
SVRMCI
MOC159-031715-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1112 AM CDT TUE APR 3 2001

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PETTIS COUNTY IN CENTRAL MISSOURI
  THIS INCLUDES THE CITY OF SEDALIA

* UNTIL 1215 PM CDT

* AT 1112 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM JUST WEST OF GREEN RIDGE...OR ABOUT 7 MILES 
  SOUTHEAST OF WHITEMAN AFB.  THE STORM WAS MOVING EAST AT 30 MPH. 
  QUARTER-SIZE HAIL FELL AT 1105 AM IN WARRENSBURG WITH THIS STORM. 
  THIS EXTENDS THE WARNING PREVIOUSLY ISSUED FOR PETTIS COUNTY.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GREENRIDGE AT 1120 PM CDT
  SEDALIA AT 1130 AM CDT
 
THIS SEVERE THUNDERSTORM WILL LIKELY PRODUCE HAIL UP TO 1 INCH IN
DIAMETER...AND WINDS IN EXCESS OF 60 MPH. FOR YOUR SAFETY...MOVE
INDOORS AND STAY AWAY FROM WINDOWS. REMEMBER...LIGHTNING IS A THREAT
FROM ALL THUNDERSTORMS. HEAVY RAINS CAN CAUSE LOCALIZED FLOODING OF
LOW LYING AREAS.

LAT...LON 3853 9350 3855 9309 3892 9309 3886 9349

BUNTING

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 6:57 AM CDT	Severe Thunderstorm Warning	EAX	Henry, Johnson, Pettis	63 min
Apr 3, 8:31 AM CDT	Severe Thunderstorm Warning	EAX	Cass, Jackson	44 min
Apr 3, 8:31 AM CDT	Severe Thunderstorm Warning	EAX	Clay, Platte	44 min
Apr 3, 9:33 AM CDT	Severe Thunderstorm Warning	EAX	Johnson	42 min
Apr 3, 9:48 AM CDT	Flash Flood Warning	EAX	Jackson	4 hr
Apr 3, 10:18 AM CDT	Severe Thunderstorm Warning	EAX	Pettis	57 min
Apr 3, 10:30 AM CDT	Severe Thunderstorm Warning	EAX	Johnson	45 min
Apr 3, 11:06 AM CDT	Severe Thunderstorm Warning	EAX	Henry	39 min
Apr 3, 11:19 AM CDT	Flash Flood Warning	EAX	Pettis	3 hr
Apr 3, 5:39 PM CDT	Flash Flood Warning	EAX	Johnson	4 hr

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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.