Alert archive / Missouri / Tornado Warnings in 2003

Tornado Warning 2, NWS Kansas City, MO

April 30, 2003Harrison County, Missouri

NWS Kansas City, MO issued this tornado warning at Apr 30, 2003, 6:51 PM CDT for Harrison County, Missouri. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 30, 2003, 6:51 PM CDT (23:51 UTC)
Expired: Apr 30, 2003, 7:30 PM CDT
In force: 39 min
Issued by: NWS Kansas City, MO
Area: Counties, with a storm outline in the text

County Harrison County, MO

The radar

The Des Moines radar (KDMX), 139 km from the middle of the area, began a volume at 23:52 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 30, 5:15 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 11.9 hours before the alert went out and 214 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 989 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: -81 m²/s²
0-3 km storm-relative helicity: 123 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

691 
WFUS53 KEAX 302351
TOREAX
MOC081-010030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
651 PM CDT WED APR 30 2003

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN HARRISON COUNTY IN NORTH CENTRAL MISSOURI

* UNTIL 730 PM CDT

* AT 646 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR HATFIELD...OR 13 MILES SOUTHWEST OF
  LAMONI...MOVING EAST AT 25 MPH. LARGE HAIL AND DESTRUCTIVE
  THUNDERSTORM WINDS ARE ALSO LIKELY WITH THIS STORM.

* THIS TORNADIC STORM IS EXPECTED TO BE NEAR...
   EAGLEVILLE BY 705 PM CDT.
   BLYTHEDALE BY 710 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
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. 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 SEEK SHELTER UNDER A HIGHWAY OVERPASS.

LAT...LON 4057 9423 4042 9422 4042 9381 4057 9380

$$

HUDSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 8:19 AM CDT	Severe Thunderstorm Warning	EAX	DeKalb	41 min
Apr 30, 9:04 AM CDT	Severe Thunderstorm Warning	EAX	Grundy	26 min
Apr 30, 5:04 PM CDT	Severe Thunderstorm Warning	EAX	Holt	41 min
Apr 30, 5:16 PM CDT	Severe Thunderstorm Warning	EAX	Atchison	44 min
Apr 30, 5:39 PM CDT	Severe Thunderstorm Warning	EAX	Nodaway	66 min
Apr 30, 6:12 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan	33 min
Apr 30, 6:14 PM CDT	Severe Thunderstorm Warning	EAX	Worth	76 min
Apr 30, 6:35 PM CDT	Severe Thunderstorm Warning	EAX	Gentry	55 min
Apr 30, 6:46 PM CDT	Severe Thunderstorm Warning	EAX	Platte	59 min
Apr 30, 6:53 PM CDT	Tornado Warning	EAX	Gentry	37 min

Nearby

Tornado Warnings in Missouri, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.