Alert archive / Missouri / Tornado Warnings in 2001

Tornado Warning 1, NWS Kansas City, MO

April 8, 2001Nodaway County, Worth County, Missouri

NWS Kansas City, MO issued this tornado warning at Apr 8, 2001, 8:57 PM CDT for Nodaway County, Worth County, Missouri. It was in force for 33 min. 1 report 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 8, 2001, 8:57 PM CDT (01:57 UTC)
Expired: Apr 8, 2001, 9:30 PM CDT
In force: 33 min
Issued by: NWS Kansas City, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Nodaway County, MO, Worth County, MO

The radar

The Des Moines radar (KDMX), 159 km from the middle of the area, began a volume at 01:58 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 8, 8:57 PM CDT	Tornado F0	Parnell, MO	A storm spotter observed a tornado 3 miles northwest of Parnell that remained on the ground for 4 minutes, moving north. No damage was reported.

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 8, 7:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 2.0 hours before the alert went out and 171 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: 2 J/kg
Mixed-layer CIN: -182 J/kg
Mixed-layer LCL: 2153 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 300 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 
WFUS53 KEAX 090158
TORMCI
MOC147-227-090230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
857 PM CDT SUN APR 8 2001

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN NODAWAY COUNTY IN NORTHWEST MISSOURI
  WESTERN WORTH COUNTY IN NORTHWEST MISSOURI

* UNTIL 930 PM CDT

* AT 857 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 4 MILES SOUTHWEST OF SHERIDAN...OR 14 MILES
  NORTHEAST OF MARYVILLE...MOVING NORTHEAST AT 20 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  SHERIDAN AT 905 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 BUILDIvNG. STAY AWAY FROM
WINDOWS. IF DRIVING...DO NOT DRIVE INTO THIS STORM AND DO NOT SEEK
SHELTER UNDER A HIGHWAY OVERPASS!

LAT...LON 4051 9482 4038 9465 4042 9438 4060 9462

MJM

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 7:50 PM CDT	Severe Thunderstorm Warning	EAX	Nodaway	40 min
Apr 8, 7:57 PM CDT	Severe Thunderstorm Warning	EAX	Holt	48 min
Apr 8, 8:23 PM CDT	Severe Thunderstorm Warning	EAX	Nodaway	52 min
Apr 8, 8:38 PM CDT	Severe Thunderstorm Warning	EAX	Holt	37 min
Apr 8, 9:14 PM CDT	Severe Thunderstorm Warning	EAX	Holt, Nodaway	61 min
Apr 8, 9:27 PM CDT	Severe Thunderstorm Warning	EAX	Worth	48 min
Apr 8, 10:38 PM CDT	Severe Thunderstorm Warning	EAX	Atchison	37 min
Apr 9, 6:33 PM CDT	Severe Thunderstorm Warning	EAX	Lafayette, Saline	42 min
Apr 9, 6:44 PM CDT	Severe Thunderstorm Warning	EAX	Cass	46 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.