Alert archive / Missouri / Tornado Warnings in 2001

Tornado Warning 2, NWS St. Louis, MO

April 10, 2001Boone County, Moniteau County, Missouri

NWS St. Louis, MO issued this tornado warning at Apr 10, 2001, 6:26 PM CDT for Boone County, Moniteau County, Missouri. It was in force for 64 min. 14 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 10, 2001, 6:26 PM CDT (23:26 UTC)
Expired
Apr 10, 2001, 7:30 PM CDT
In force
64 min
Issued by
NWS St. Louis, MO
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Boone County, MO, Moniteau County, MO

The radar

The Pleasant Hill radar (KEAX), 148 km from the middle of the area, began a volume at 23:26 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

TimeReportWhereRemark
Apr 10, 6:30 PM CDTThunderstorm Wind 60 EBunceton, MO
Apr 10, 6:35 PM CDTThunderstorm Wind 55 ETipton, MOThunderstorm wind gusts downed a few trees in Tipton.
Apr 10, 6:36 PM CDTHail 1Boonville, MO
Apr 10, 6:45 PM CDTHail 1.75Jamestown, MO
Apr 10, 6:45 PM CDTThunderstorm Wind 51 EJamestown, MOThe County Sheriff reported golf ball size hail and wind gusts to 60 mph.
Apr 10, 6:45 PM CDTHail 1Harrisburg, MO
Apr 10, 6:47 PM CDTTornado F0California, MOA small, brief tornado formed near California. A couple of storm spotters observed the brief tornado north of California. The tornado formed over open farmland, kicked up some dirt and dissipated. This was the first of 6 tornadoes that a High Precipitation Sup
Apr 10, 6:50 PM CDTThunderstorm Wind 53 EJamestown, MOThe County Sheriff reported several large trees and power lines down in Jamestown.
Apr 10, 6:55 PM CDTHail 1.75Columbia, MO
Apr 10, 7:01 PM CDTHail 1.75Columbia, MO
Apr 10, 7:05 PM CDTHail 2.75Ashland, MO
Apr 10, 7:05 PM CDTThunderstorm Wind 55 EAshland, MO
Apr 10, 7:09 PM CDTHail 0.75Ashland, MO
Apr 10, 7:09 PM CDTThunderstorm Wind 61 EAshland, 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.

IssuedProductOfficeLasted
Apr 10, 5:00 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.4 hours before the alert went out and 243 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 2001-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1257 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2001-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 223 square meters per square second.1939587897Sfc1 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
1257 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
742 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
223 m²/s²
0-3 km storm-relative helicity
243 m²/s²
Significant tornado parameter
1.5
Supercell composite
7.5

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLSX 102328
TORSTL
MOC019-135-110030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
626 PM CDT TUE APR 10 2001

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  BOONE COUNTY IN CENTRAL MISSOURI
  NORTHERN MONITEAU COUNTY IN CENTRAL MISSOURI

* UNTIL 730 PM CDT

* AT 626 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  STRONG ROTATION 13 MILES NORTH OF TIPTON...MOVING EAST AT 40 MPH.
  A TORNADO MAY OCCUR AT ANY TIME.

* LOCATIONS IN THE PATH...
  MCBAINE
  LUPUS
  MIDWAY
  EASLEY
  COLUMBIA
  CALIFORNIA
  ASHLAND

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW A BASEMENT
OFFERS THE BEST PROTECTION. IF A BASEMENT IS NOT AVAILABLE...MOVE TO
THE LOWEST FLOOR AND SEEK SHELTER IN A SMALL INTERIOR ROOM. STAY AWAY
FROM OUTSIDE WALLS AND WINDOWS. MOBILE HOMES SHOULD BE ABANDONED IN
FAVOR OF A MORE SUBSTANTIAL STRUCTURE. DO NOT TRY TO OUTRUN A TORNADO
IN A VEHICLE.

LAT...LON 3893 9292 3861 9285 3861 9265 3863 9244
          3871 9238 3873 9222 3925 9216 3923 9243

GKS/RP

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 8:26 PM CDTSevere Thunderstorm WarningLSXCallaway49 min
Apr 9, 8:35 PM CDTSevere Thunderstorm WarningLSXCole, Osage40 min
Apr 9, 8:44 PM CDTSevere Thunderstorm WarningLSXFranklin46 min
Apr 9, 8:56 PM CDTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis49 min
Apr 9, 8:59 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Gasconade46 min
Apr 9, 9:19 PM CDTSevere Thunderstorm WarningLSXWarren41 min
Apr 9, 9:29 PM CDTSevere Thunderstorm WarningLSXPike, Ralls46 min
Apr 9, 9:34 PM CDTSevere Thunderstorm WarningLSXCrawford26 min
Apr 9, 9:35 PM CDTSevere Thunderstorm WarningLSXFranklin40 min
Apr 9, 9:43 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis47 min
Apr 9, 10:06 PM CDTSevere Thunderstorm WarningLSXJefferson39 min
Apr 9, 10:18 PM CDTTornado WarningLSXWashington42 min
Apr 9, 10:46 PM CDTSevere Thunderstorm WarningLSXJefferson44 min
Apr 10, 1:18 AM CDTSevere Thunderstorm WarningLSXBoone42 min
Apr 10, 1:55 AM CDTSevere Thunderstorm WarningLSXAudrain50 min
Apr 10, 2:29 AM CDTSevere Thunderstorm WarningLSXPike46 min
Apr 10, 4:24 AM CDTSevere Thunderstorm WarningLSXPike36 min
Apr 10, 6:56 PM CDTTornado WarningLSXCallaway64 min

Nearby

Tornado Warnings in Missouri, 2001Every tornado warning in 2001Tornadoes 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.