Alert archive / Missouri / Tornado Warnings in 2001

Tornado Warning 11, NWS Kansas City, MO

May 4, 2001Nodaway County, Missouri

NWS Kansas City, MO issued this tornado warning at May 4, 2001, 8:07 PM CDT for Nodaway County, Missouri. It was in force for 53 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: May 4, 2001, 8:07 PM CDT (01:07 UTC)
Expired: May 4, 2001, 9:00 PM CDT
In force: 53 min
Issued by: NWS Kansas City, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Nodaway County, MO

The radar

The Omaha radar (KOAX), 151 km from the middle of the area, began a volume at 01:11 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

Omaha, NE (KOAX), launched 00:00Z, 1.1 hours before the alert went out and 151 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: 13 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 476 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 182 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KEAX 050109
TORMCI
MOC147-050200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
807 PM CDT FRI MAY 4 2001

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN NODAWAY COUNTY IN NORTHWEST MISSOURI

* UNTIL 900 PM CDT

* AT 807 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 3 MILES NORTHEAST OF SKIDMORE...OR 10 MILES WEST
  OF MARYVILLE...MOVING NORTH AT 15 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  QUITMAN AT 820 PM CDT
  BURLINGTON JCT AT 835 PM CDT
  CLEARMONT AT 845 PM CDT
  ELMO AT 855 PM CDT

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
NOT BE OCCURRING WHEN THE WARNING IS ISSUED...BUT ONE IS EXPECTED TO
DEVELOP. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE
INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM
WINDOWS. IF DRIVING...DO NOT DRIVE INTO THIS STORM AND DO NOT SEEK
SHELTER UNDER A HIGHWAY OVERPASS!

LAT...LON 4057 9504 4058 9520 4028 9519 4027 9510
          4029 9490 4032 9494 4036 9494

BROLWNING

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 7:07 PM CDT	Tornado Warning	EAX	Nodaway	53 min
May 4, 7:49 PM CDT	Severe Thunderstorm Warning	EAX	Chariton	41 min
May 4, 8:11 PM CDT	Severe Thunderstorm Warning	EAX	Macon	64 min

Nearby

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