Alert archive / Tennessee / Tornado Warnings in 2004

Tornado Warning 45, NWS Memphis, TN

October 18, 2004Obion County, Tennessee

NWS Memphis, TN issued this tornado warning at Oct 18, 2004, 7:42 PM CDT for Obion County, Tennessee. It was in force for 18 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, 7:42 PM CDT (00:42 UTC)
Expired: Oct 18, 2004, 8:00 PM CDT
In force: 18 min
Issued by: NWS Memphis, TN
Area: Counties, with a storm outline in the text

County Obion County, TN

The radar

The Paducah radar (KPAH), 77 km from the middle of the area, began a volume at 00:45 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, 4:05 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 0.7 hours before the alert went out and 194 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 190042
TORMEM
TNC131-190100-

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

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  OBION COUNTY IN NORTHWEST TENNESSEE

* UNTIL 800 PM CDT

* AT 741 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 2 MILES SOUTH OF 
UNION   CITY...MOVING EAST AT 20 MPH.  TREES WERE REPORTED TO HAVE 
BEEN BLOWN OVER ALONG HIGHWAY 22 ABOUT 5 MILES WEST OF UNION CITY.

* CITIES IN THE PATH OF THIS STORM THROUGH 800 PM CDT INCLUDE...
  SOUTH FULTON...

.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 3650 8910 3632 8911 3632 8900 3630 8896
      3649 8882

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 18, 7:01 PM CDT	Tornado Warning	MEG	Obion	44 min
Oct 18, 7:13 PM CDT	Tornado Warning	MEG	Lake	47 min
Oct 18, 7:21 PM CDT	Tornado Warning	MEG	Chester, Henderson, McNairy	24 min
Oct 18, 7:33 PM CDT	Tornado Warning	MEG	Weakley	42 min
Oct 18, 7:42 PM CDT	Tornado Warning	MEG	Decatur, Hardin, Henderson	48 min
Oct 18, 7:46 PM CDT	Tornado Warning Emergency	MEG	Dyer	44 min
Oct 18, 8:00 PM CDT	Severe Thunderstorm Warning	MEG	Obion	30 min
Oct 18, 8:11 PM CDT	Tornado Warning Emergency	MEG	Henry	49 min
Oct 18, 8:14 PM CDT	Tornado Warning	MEG	Weakley	31 min
Oct 18, 8:28 PM CDT	Tornado Warning Emergency	MEG	Dyer	47 min
Oct 18, 8:38 PM CDT	Severe Thunderstorm Warning	MEG	Chester, McNairy	37 min
Oct 18, 8:53 PM CDT	Tornado Warning	MEG	Henry	37 min
Oct 18, 8:59 PM CDT	Tornado Warning Emergency	MEG	Crockett, Gibson	46 min
Oct 18, 9:14 PM CDT	Tornado Warning	MEG	Dyer	16 min
Oct 18, 9:45 PM CDT	Tornado Warning	MEG	Gibson	30 min
Oct 18, 9:53 PM CDT	Severe Thunderstorm Warning	MEG	Lake	37 min
Oct 18, 10:04 PM CDT	Tornado Warning	MEG	Dyer	41 min
Oct 18, 10:07 PM CDT	Tornado Warning	MEG	Henry	8 min
Oct 18, 10:15 PM CDT	Tornado Warning	MEG	Gibson	15 min
Oct 18, 10:16 PM CDT	Flash Flood Warning	MEG	Lake, Obion	119 min
Oct 18, 10:22 PM CDT	Flash Flood Warning	MEG	Gibson	113 min
Oct 18, 10:22 PM CDT	Tornado Warning	MEG	Carroll	38 min
Oct 18, 10:29 PM CDT	Tornado Warning	MEG	Gibson	16 min
Oct 18, 10:47 PM CDT	Tornado Warning	MEG	Crockett	28 min
Oct 18, 11:00 PM CDT	Tornado Warning	MEG	Carroll	45 min
Oct 18, 11:27 PM CDT	Severe Thunderstorm Warning	MEG	Henderson	33 min
Oct 19, 12:00 AM CDT	Flash Flood Warning	MEG	Carroll	2 hr
Oct 19, 1:09 AM CDT	Severe Thunderstorm Warning	MEG	Shelby	51 min
Oct 19, 1:48 AM CDT	Severe Thunderstorm Warning	MEG	Hardin, McNairy	42 min
Oct 19, 2:07 AM CDT	Flash Flood Warning	MEG	Carroll, Henderson, Madison	113 min
Oct 19, 2:16 AM CDT	Flash Flood Warning	MEG	Hardin	119 min
Oct 19, 2:51 AM CDT	Tornado Warning	MEG	Hardin	9 min
Oct 19, 2:58 AM CDT	Flash Flood Warning	MEG	Shelby	2 hr
Oct 19, 4:14 AM CDT	Flash Flood Warning	MEG	Hardin, McNairy	2 hr
Oct 19, 10:16 AM CDT	Severe Thunderstorm Warning	MEG	Fayette	29 min
Oct 19, 2:51 PM CDT	Severe Thunderstorm Warning	MEG	Madison	39 min
Oct 19, 3:03 PM CDT	Tornado Warning	MEG	Madison	42 min
Oct 19, 3:15 PM CDT	Tornado Warning	MEG	Haywood	15 min
Oct 19, 3:42 PM CDT	Tornado Warning	MEG	Chester, Henderson, Madison	48 min
Oct 19, 3:48 PM CDT	Tornado Warning	MEG	Hardeman	22 min
Oct 19, 4:24 PM CDT	Tornado Warning	MEG	Chester, McNairy	51 min
Oct 19, 5:09 PM CDT	Tornado Warning	MEG	Hardin, McNairy	51 min
Oct 19, 5:59 PM CDT	Tornado Warning	MEG	Hardin	31 min

Nearby

Tornado Warnings in Tennessee, 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.