Alert archive / Missouri / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 21, NWS Kansas City, MO

April 8, 2001Nodaway County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Apr 8, 2001, 7:50 PM CDT for Nodaway County, Missouri. It was in force for 40 min. 4 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 8, 2001, 7:50 PM CDT (00:50 UTC)
Expired: Apr 8, 2001, 8:30 PM CDT
In force: 40 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), 157 km from the middle of the area, began a volume at 00:50 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
Apr 8, 8:03 PM CDT	Hail 1.75	Pickering, MO
Apr 8, 8:22 PM CDT	Hail 1	Maryville, MO
Apr 8, 8:38 PM CDT	Hail 1.75	Quitman, MO
Apr 8, 8:40 PM CDT	Hail 1	Maryville, 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 8, 7:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.8 hours before the alert went out and 157 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.

092 
WUUS53 KEAX 090051
SVRMCI
MOC147-090130-

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

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NODAWAY COUNTY IN NORTHWEST MISSOURI
  THIS INCLUDES THE CITY OF MARYVILLE

* UNTIL 830 PM CDT

* AT 750 PM CDT...THE PUBLIC REPORTED A SEVERE THUNDERSTORM OVER
  PICKERING...OR ABOUT 11 MILES NORTHEAST OF MARYVILLE...MOVING
  NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
PICKERING AT 800 PM CDT
HOPKINS AT 800 PM 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 4036 9512 4023 9495 4038 9464 4057 9465
          4057 9486 4055 9511

The office that day

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

Issued	Product	Office	Counties	Lasted
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, 8:57 PM CDT	Tornado Warning	EAX	Nodaway, Worth	33 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

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.