Alert archive / Mississippi / Tornado Warnings in 1999

Tornado Warning 47, NWS Memphis, TN

January 21, 1999Tallahatchie County, Mississippi

NWS Memphis, TN issued this tornado warning at Jan 21, 1999, 10:02 PM CST for Tallahatchie County, Mississippi. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 21, 1999, 10:02 PM CST (04:02 UTC)
Expired
Jan 21, 1999, 10:50 PM CST
In force
48 min
Issued by
NWS Memphis, TN
Area
Whole counties

County Tallahatchie County, MS

The radar

The Memphis radar (KNQA), 157 km from the middle of the area, began a volume at 04:02 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.

IssuedProductOfficeLasted
Jan 21, 9:00 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 4.0 hours before the alert went out and 100 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-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 1999-01-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 725 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 1999-01-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
725 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
1259 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
283 m²/s²
Significant tornado parameter
0.8
Supercell composite
3.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMEM 220402 RRA
TORMEM
MSC135-220450-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
1002 PM CST THU JAN 21 1999


THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  TALLAHATCHIE COUNTY IN NORTHWESTERN MISSISSIPPI

* UNTIL 1050 PM CST

* AT 1001 PM CST... DOPPLER RADAR INDICATED A TORNADO JUST SOUTHWEST
OF SUMNER IN IN TALLAHATCHIE COUNTY.  SUNFLOWER COUNTY OFFICIALS
REPORTED A TORNADO ON THE GROUND NEAR RULEVILLE BETWEEN 945 AND 955
PM.  MOVING NORTHEAST AT 45 MPH.


* THE TORNADO WILL BE NEAR...
SUMNER AROUND 1005 PM
BRAZIL AROUND 1015 PM

.A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN, AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY
CHANGING WEATHER CONDITIONS.



&

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 10:08 PM CSTTornado WarningMEGQuitman47 min
Jan 21, 10:29 PM CSTTornado WarningMEGPanola51 min
Jan 21, 10:46 PM CSTTornado WarningMEGTate39 min
Jan 21, 10:56 PM CSTTornado WarningMEGDeSoto49 min
Jan 21, 11:08 PM CSTTornado WarningMEGMarshall32 min
Jan 21, 11:12 PM CSTTornado WarningMEGQuitman, Tallahatchie48 min
Jan 21, 11:55 PM CSTTornado WarningMEGPanola35 min
Jan 21, 11:59 PM CSTTornado WarningMEGQuitman, Tallahatchie31 min
Jan 22, 12:00 AM CSTTornado WarningMEGTate45 min
Jan 22, 12:32 AM CSTTornado WarningMEGPanola18 min
Jan 22, 1:06 AM CSTTornado WarningMEGMarshall, Tate49 min
Jan 22, 1:55 AM CSTSevere Thunderstorm WarningMEGMarshall, Tate45 min
Jan 22, 2:23 AM CSTTornado WarningMEGBenton, Marshall47 min
Jan 22, 3:21 AM CSTSevere Thunderstorm WarningMEGMarshall49 min
Jan 22, 8:07 AM CSTSevere Thunderstorm WarningMEGTallahatchie, Yalobusha48 min
Jan 22, 8:26 AM CSTSevere Thunderstorm WarningMEGPanola34 min
Jan 22, 8:30 AM CSTSevere Thunderstorm WarningMEGLafayette50 min
Jan 22, 9:43 AM CSTTornado WarningMEGBenton37 min
Jan 22, 10:05 AM CSTTornado WarningMEGMarshall35 min
Jan 22, 10:18 AM CSTTornado WarningMEGBenton32 min
Jan 22, 10:29 AM CSTTornado WarningMEGLafayette51 min
Jan 22, 10:35 AM CSTTornado WarningMEGTippah35 min
Jan 22, 10:50 AM CSTSevere Thunderstorm WarningMEGYalobusha20 min
Jan 22, 11:23 AM CSTTornado WarningMEGBenton, Tippah32 min
Jan 22, 11:49 AM CSTTornado WarningMEGCalhoun31 min
Jan 22, 12:18 PM CSTSevere Thunderstorm WarningMEGLee, Pontotoc32 min
Jan 22, 12:43 PM CSTTornado WarningMEGLee17 min
Jan 22, 12:46 PM CSTSevere Thunderstorm WarningMEGAlcorn, Prentiss44 min
Jan 22, 12:58 PM CSTSevere Thunderstorm WarningMEGItawamba17 min
Jan 22, 1:01 PM CSTTornado WarningMEGAlcorn19 min
Jan 22, 1:07 PM CSTTornado WarningMEGPrentiss18 min
Jan 22, 1:14 PM CSTTornado WarningMEGTishomingo31 min
Jan 22, 1:49 PM CSTSevere Thunderstorm WarningMEGCalhoun36 min
Jan 22, 1:59 PM CSTSevere Thunderstorm WarningMEGMonroe21 min
Jan 22, 2:06 PM CSTSevere Thunderstorm WarningMEGPontotoc49 min
Jan 22, 2:24 PM CSTSevere Thunderstorm WarningMEGMonroe16 min
Jan 22, 2:42 PM CSTSevere Thunderstorm WarningMEGLee33 min
Jan 22, 2:50 PM CSTSevere Thunderstorm WarningMEGCalhoun35 min
Jan 22, 2:53 PM CSTTornado WarningMEGLee32 min
Jan 22, 3:02 PM CSTSevere Thunderstorm WarningMEGPrentiss33 min
Jan 22, 3:06 PM CSTTornado WarningMEGPrentiss34 min
Jan 22, 3:28 PM CSTSevere Thunderstorm WarningMEGTishomingo32 min
Jan 22, 3:36 PM CSTSevere Thunderstorm WarningMEGCalhoun49 min
Jan 22, 4:07 PM CSTSevere Thunderstorm WarningMEGChickasaw48 min
Jan 22, 4:35 PM CSTSevere Thunderstorm WarningMEGLee, Pontotoc50 min
Jan 22, 4:56 PM CSTTornado WarningMEGLee, Prentiss34 min
Jan 22, 5:10 PM CSTSevere Thunderstorm WarningMEGItawamba35 min
Jan 22, 5:39 PM CSTTornado WarningMEGTishomingo21 min

Nearby

Tornado Warnings in Mississippi, 1999Every tornado warning in 1999Tornadoes in 1999

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.