Alert archive / Louisiana / Tornado Warnings in 2003

Tornado Warning 155, NWS Jackson, MS

May 17, 2003Morehouse Parish, Louisiana

NWS Jackson, MS issued this tornado warning at May 17, 2003, 4:32 AM CDT for Morehouse Parish, Louisiana. It was in force for 43 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: May 17, 2003, 4:32 AM CDT (09:32 UTC)
Expired: May 17, 2003, 5:15 AM CDT
In force: 43 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Morehouse Parish, LA

The radar

The Shreveport radar (KSHV), 188 km from the middle of the area, began a volume at 09:34 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

Shreveport, LA (KSHV), launched 00:00Z, 9.5 hours before the alert went out and 179 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: 1901 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1440 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 218 m²/s²
0-3 km storm-relative helicity: 247 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 15.5

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KJAN 170932
TORJAN
LAC067-171015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
432 AM CDT SAT MAY 17 2003

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  MOREHOUSE PARISH IN NORTHEAST LOUISIANA

* UNTIL 515 AM CDT

* AT 432 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 6 MILES SOUTHWEST OF BEEKMAN...OR ABOUT 7 MILES NORTHWEST
  OF BASTROP...MOVING NORTHEAST AT 40 MPH.

* THE TORNADO IS EXPECTED TO...
  BE NEAR BEEKMAN AT 435 AM CDT
  BE NEAR BONITA AT 450 AM CDT

A TORNADO MAY FORM AT ANY TIME - TAKE COVER NOW ABANDON MOBILE HOMES
AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS.

LARGE HAIL AND STRONG STRAIGHT LINE WINDS ARE ALSO EXPECTED.

DO NOT STOP UNDER BRIDGES OR HIGHWAY OVERPASSES. THEY OFFER NO
PROTECTION FROM VIOLENT WINDS. BLOCKING THE ROAD WILL PREVENT OTHERS
FROM REACHING SAFE SHELTER.

LAT...LON 3292 9209 3276 9199 3292 9154 3300 9181

$$

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 16, 11:28 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse	47 min
May 17, 12:15 AM CDT	Severe Thunderstorm Warning	JAN	Morehouse	60 min
May 17, 4:26 AM CDT	Severe Thunderstorm Warning	JAN	Morehouse	44 min
May 17, 5:13 AM CDT	Severe Thunderstorm Warning	JAN	Morehouse, Richland, West Carroll	62 min
May 17, 6:17 AM CDT	Severe Thunderstorm Warning	JAN	East Carroll, Madison	58 min
May 17, 7:22 AM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Franklin	43 min
May 17, 9:10 AM CDT	Flash Flood Warning	JAN	Concordia	3 hr

Nearby

Tornado Warnings in Louisiana, 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.