Alert archive / Arkansas / Tornado Warnings in 2004

Tornado Warning 67, NWS Memphis, TN

October 18, 2004Cross County, St. Francis County, Arkansas

NWS Memphis, TN issued this tornado warning at Oct 18, 2004, 11:15 PM CDT for Cross County, St. Francis County, Arkansas. It was in force for 45 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: Oct 18, 2004, 11:15 PM CDT (04:15 UTC)
Expired: Oct 19, 2004, 12:00 AM CDT
In force: 45 min
Issued by: NWS Memphis, TN
Area: Counties, with a storm outline in the text

Counties Cross County, AR, St. Francis County, AR

The radar

The Memphis radar (KNQA), 92 km from the middle of the area, began a volume at 04:16 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
Oct 18, 10:55 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 4.3 hours before the alert went out and 90 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: 3284 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1041 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 151 m²/s²
0-3 km storm-relative helicity: 289 m²/s²
Significant tornado parameter: 4.1
Supercell composite: 18.9

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KMEG 190415
TORMEM
ARC037-123-190500-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
1115 PM CDT MON OCT 18 2004

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  CROSS COUNTY IN EASTERN ARKANSAS
  ST. FRANCIS COUNTY IN EASTERN ARKANSAS

* UNTIL MIDNIGHT CDT

* AT 1115 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 13 MILES WEST OF
  CALDWELL...MOVING EAST AT 15 MPH.

* CITIES IN THE PATH OF THIS STORM THROUGH MIDNIGHT CDT INCLUDE...
  CALDWELL...
  COLT...
  WYNNE...

.IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER IN AN INTERIOR
ROOM ON THE LOWEST FLOOR. PROTECT YOUR BODY FROM FLYING DEBRIS.

.IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT.

.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.

LAT...LON 3522 9104 3497 9105 3507 9055 3532 9061

$$

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 18, 7:13 PM CDT	Tornado Warning	MEG	Greene	47 min
Oct 18, 8:55 PM CDT	Severe Thunderstorm Warning	MEG	Clay, Greene, Randolph	50 min
Oct 18, 10:21 PM CDT	Severe Thunderstorm Warning	MEG	Lee, Phillips	39 min
Oct 19, 1:09 AM CDT	Severe Thunderstorm Warning	MEG	Crittenden	51 min

Nearby

Tornado Warnings in Arkansas, 2004 Every tornado warning in 2004 Tornadoes in 2004

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.