Alert archive / Arkansas / Tornado Warnings in 1999

Tornado Warning 49, NWS Memphis, TN

January 21, 1999Poinsett County, Arkansas

NWS Memphis, TN issued this tornado warning at Jan 21, 1999, 10:08 PM CST for Poinsett County, Arkansas. It was in force for 47 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, 10:08 PM CST (04:08 UTC)
Expired
Jan 21, 1999, 10:55 PM CST
In force
47 min
Issued by
NWS Memphis, TN
Area
Whole counties

County Poinsett County, AR

The radar

The Memphis radar (KNQA), 76 km from the middle of the area, began a volume at 04:07 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, 4.1 hours before the alert went out and 105 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 220407
TORMEM
ARC031-111-MOC069-220455-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
1008 PM CST THU JAN 21 1999


THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CRAIGHEAD COUNTY IN NORTHEASTERN ARKANSAS
  EASTERN POINSETT COUNTY IN NORTHEASTERN ARKANSAS
  DUNKLIN COUNTY IN SOUTHEASTERN MISSOURI

* UNTIL 1055 PM CST

* AT 1005 PM CST... DOPPLER RADAR INDICATED A DEVELOPING TORNADO
  EAST OF TRUMAN... MOVING NORTHEAST AT 50 MPH.

* THE TORNADO WILL BE NEAR...
  LAKE CITY BY 1015 PM CST
  MONETTE BY 1020 PM CST
  KENNETT BY 1045 PM CST


.THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR 4DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A PLACE OF SAFETY...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 6:16 PM CSTTornado WarningMEGSt. Francis34 min
Jan 21, 6:31 PM CSTSevere Thunderstorm WarningMEGPoinsett49 min
Jan 21, 6:34 PM CSTSevere Thunderstorm WarningMEGLawrence61 min
Jan 21, 6:37 PM CSTTornado WarningMEGCrittenden48 min
Jan 21, 6:45 PM CSTTornado WarningMEGClay50 min
Jan 21, 6:49 PM CSTTornado WarningMEGMississippi46 min
Jan 21, 7:00 PM CSTTornado WarningMEGLawrence, Randolph50 min
Jan 21, 7:29 PM CSTTornado WarningMEGClay46 min
Jan 21, 7:32 PM CSTTornado WarningMEGCraighead, Poinsett48 min
Jan 21, 7:53 PM CSTTornado WarningMEGGreene47 min
Jan 21, 8:07 PM CSTSevere Thunderstorm WarningMEGLee48 min
Jan 21, 8:21 PM CSTFlash Flood WarningMEGLawrence, Randolph119 min
Jan 21, 8:27 PM CSTTornado WarningMEGClay48 min
Jan 21, 8:32 PM CSTTornado WarningMEGSt. Francis48 min
Jan 21, 8:43 PM CSTTornado WarningMEGCraighead, Greene, Lawrence47 min
Jan 21, 8:47 PM CSTTornado WarningMEGCross48 min
Jan 21, 8:58 PM CSTTornado WarningMEGCrittenden47 min
Jan 21, 9:12 PM CSTTornado WarningMEGMississippi, Poinsett48 min
Jan 21, 9:28 PM CSTTornado WarningMEGClay, Greene, Randolph47 min
Jan 21, 9:35 PM CSTTornado WarningMEGCraighead, Lawrence50 min
Jan 21, 9:58 PM CSTTornado WarningMEGMississippi47 min
Jan 21, 10:08 PM CSTTornado WarningMEGCraighead47 min
Jan 21, 10:15 PM CSTTornado WarningMEGClay50 min
Jan 21, 10:20 PM CSTFlash Flood WarningMEGCross, Poinsett, St. Francis4 hr
Jan 21, 10:20 PM CSTFlash Flood WarningMEGCraighead, Greene, Lawrence, Randolph4 hr
Jan 21, 10:20 PM CSTFlash Flood WarningMEGClay4 hr
Jan 21, 11:51 PM CSTSevere Thunderstorm WarningMEGCraighead, Mississippi, Poinsett44 min
Jan 22, 2:56 AM CSTFlash Flood WarningMEGCraighead, Mississippi, Poinsett4 hr
Jan 22, 2:56 AM CSTFlash Flood WarningMEGCross4 hr
Jan 22, 3:09 AM CSTSevere Thunderstorm WarningMEGSt. Francis46 min
Jan 22, 5:23 AM CSTSevere Thunderstorm WarningMEGCrittenden47 min

Nearby

Tornado Warnings in Arkansas, 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.