Alert archive / Missouri / Tornado Warnings in 1999

Tornado Warning 19, NWS Paducah, KY

January 21, 1999Mississippi County, Missouri

NWS Paducah, KY issued this tornado warning at Jan 21, 1999, 11:38 PM CST for Mississippi County, Missouri. It was in force for 37 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, 11:38 PM CST (05:38 UTC)
Expired
Jan 22, 1999, 12:15 AM CST
In force
37 min
Issued by
NWS Paducah, KY
Area
Whole counties

County Mississippi County, MO

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jan 21, 10:00 PM CSTTornado WatchSPC5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 5.6 hours before the alert went out and 230 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

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Paducah, KY wrote its last area forecast discussion before this tornado warning went out at Jan 21, 2:00 PM CST, 9 hours 38 minutes earlier.

Area forecast discussion, Jan 21, 2:00 PM CST, 9 hours 38 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PADUCAH KY
200 PM CST THU JAN 21 1999

LATEST SURFACE ANALYSIS SHOWS AN AREA OF LOW PRESSURE OVER OKLAHOMA
WITH A WARM FRONT EXTENDING ACROSS CNTRL MO AND SRN IL INTO NW KY.
AIRMASS SOUTH OF THIS FRONT HAS BECOME MODERATELY UNSTABLE.
TEMPERATURES AND DEWPOINTS IN THE 60S HAS RESULTED IN SURFACE-BASED
CAPE VALUES OF 500 TO 1500 J/KG.  12Z UA SOUNDINGS SHOWED AIRMASS
WAS STRONGLY CAPPED.  HOWEVER...UPWARD VERTICAL MOTIONS ASSOCIATED
WITH MID-LEVEL SHORTWAVE TROF MOVING ACROSS THE PLAINS HAS RESULTED
IN CAP WEAKENING.  THIS IS SEEN IN 18Z LZK AND JAN SOUNDINGS.

SHOWERS AND THUNDERSTORMS ARE ONCE AGAIN BEGINNING TO DEVELOP ACROSS
PORTIONS OF FA...GENERALLY INVOF WARM FRONT.  WITH INSTABILITY IN
PLACE AND CONTINUED UPWARD VERTICAL MOTION EXPECTED OVER REGION...
EXPECT ADDITIONAL STORMS WILL DEVELOP WITH SOME OF THESE STORMS
POSSIBLY BECOMING SEVERE.

MODELS INDICATE THE SHORTWAVE TROF WILL SLOWLY NORTHEAST AWAY FROM
REGION WHILE A SECOND STRONGER SHORTWAVE TROF DROPS INTO THE
LONGWAVE TROF THAT HAS ALREADY DEVELOPED OVER THE SOUTHERN PLAINS.
THIS SECOND SHORTWAVE TROF WILL THEN ROTATE EWD TOWARD THE FA FRI
AND SATURDAY.  AS A RESULT...A COLD FRONT WILL SWEEP ACROSS THE
REGION FRI AFTN INTO FRIDAY NIGHT.  MODELS CONTINUE TO SHOW A DRY
PUNCH WILL MOVE ALSO INTO THE REGION LATE FRIDAY AFTN/EVENING.  WITH
INSTABILITY EXPECTED TO REMAIN IN PLACE AND WIND FIELDS ALSO
EXPECTED TO INCREASE...BELIEVE THREAT OF SEVERE THUNDERSTORMS WILL
INCREASE AS FRONT AND DRY PUNCH MOVE INTO REGION.

CLOUDS SHOULD CONTINUE ACROSS THE FA UNTIL SATURDAY WITH WRN
PORTIONS OF FA BEGINNING TO SEE SOME SUN BY EARLY SAT AFTN.  A FEW
SHOWERS MAY ALSO CONTINUE...MAINLY OVER NRN AND ERN SECTIONS OF FA
EARLY SATURDAY.

FWC/FAN TEMPERATURE GUIDANCE ARE IN CLOSE AGREEMENT.  HOWEVER...
BELIEVE LOWS TONIGHT WILL BE WARMER THAN GUIDANCE ACROSS SRN
SECTIONS OF FA AS DEWPOINTS ARE CURRENTLY APPROACHING THE 60S.
HIGHS TOMORROW MAY ALSO BE A FEW DEGREES WARMER THAN GUIDANCE.

WILL HOLD OFF ON FLASH FLOOD WATCH ATTM AS CURRENT THINKING IS THAT
HEAVY RAINS SHOULD GENERALLY BE FRIDAY AND FRIDAY NIGHT.

.PAH...NONE.

JH/JK

In the hours before

Local storm report, Jan 21, 10:04 PM CST, 1 hour 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
1004 PM CST THU JAN 21 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1003 PM    JOHNSTON CITY             IL   .88 INCH HAIL
01/21/99   WILLIAMSON
Local storm report, Jan 21, 10:15 PM CST, 1 hour 23 minutes before
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Local storm report, Jan 21, 10:15 PM CST, 1 hour 23 minutes before
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Local storm report, Jan 21, 11:05 PM CST, 33 minutes before
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Local storm report, Jan 21, 11:27 PM CST, 11 minutes before
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Local storm report, Jan 21, 11:27 PM CST, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
1127 PM CST THU JAN 21 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1118 PM    ORAN                      MO   .75 INCH HAIL
01/21/99   SCOTT

1119 PM    MORLEY                    MO   .88 INCH HAIL
01/21/99   SCOTT

The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 21, 11:40 PM CSTTornado WarningPAHFulton35 min
Jan 21, 11:56 PM CSTTornado WarningPAHBallard, Carlisle49 min
Jan 22, 12:15 AM CSTSevere Thunderstorm WarningPAHMcCracken45 min
Jan 22, 12:41 AM CSTSevere Thunderstorm WarningPAHBallard, Carlisle34 min
Jan 22, 12:53 AM CSTSevere Thunderstorm WarningPAHMcCracken37 min
Jan 22, 1:36 AM CSTSevere Thunderstorm WarningPAHGraves, McCracken39 min
Jan 22, 1:49 AM CSTSevere Thunderstorm WarningPAHLivingston41 min
Jan 22, 3:54 AM CSTTornado WarningPAHChristian, Todd51 min
Jan 22, 6:35 AM CSTSevere Thunderstorm WarningPAHTrigg40 min
Jan 22, 6:52 AM CSTSevere Thunderstorm WarningPAHChristian53 min
Jan 22, 10:23 AM CSTFlash Flood WarningPAHChristian4 hr
Jan 22, 1:04 PM CSTFlash Flood WarningPAHCaldwell, Hopkins, Webster4 hr
Jan 22, 1:04 PM CSTFlash Flood WarningPAHCrittenden, Livingston, Lyon, Marshall4 hr
Jan 22, 1:04 PM CSTFlash Flood WarningPAHUnion4 hr
Jan 22, 1:04 PM CSTFlash Flood WarningPAHCalloway, Trigg4 hr
Jan 22, 2:27 PM CSTFlash Flood WarningPAHGraves3 hr
Jan 22, 2:48 PM CSTFlash Flood WarningPAHCarlisle, Fulton, Hickman3 hr
Jan 22, 3:07 PM CSTFlash Flood WarningPAHBallard, McCracken3 hr
Jan 22, 4:23 PM CSTFlash Flood WarningPAHChristian, Muhlenberg, Todd8 hr
Jan 22, 4:40 PM CSTFlash Flood WarningPAHDaviess, Henderson, McLean7 hr
Jan 22, 5:25 PM CSTFlash Flood WarningPAHCrittenden, Union, Webster7 hr
Jan 22, 5:25 PM CSTFlash Flood WarningPAHLivingston, Lyon, Marshall7 hr
Jan 22, 5:25 PM CSTFlash Flood WarningPAHCaldwell, Calloway, Trigg7 hr
Jan 22, 5:25 PM CSTFlash Flood WarningPAHGraves7 hr
Jan 22, 5:25 PM CSTFlash Flood WarningPAHHopkins7 hr
Jan 22, 5:55 PM CSTFlash Flood WarningPAHCarlisle, Fulton, Hickman6 hr
Jan 22, 5:55 PM CSTFlash Flood WarningPAHBallard, McCracken6 hr
Jan 21, 6:34 PM CSTTornado WarningPAHAlexander46 min
Jan 21, 7:00 PM CSTTornado WarningPAHUnion50 min
Jan 21, 7:37 PM CSTTornado WarningPAHWilliamson48 min
Jan 21, 8:25 PM CSTFlash Flood WarningPAHFranklin, Jackson, Union, Williamson9 hr
Jan 21, 9:30 PM CSTFlash Flood WarningPAHAlexander8 hr
Jan 21, 9:30 PM CSTFlash Flood WarningPAHPerry8 hr
Jan 21, 9:44 PM CSTTornado WarningPAHUnion, Williamson31 min
Jan 21, 10:07 PM CSTSevere Thunderstorm WarningPAHFranklin33 min
Jan 21, 10:20 PM CSTTornado WarningPAHFranklin, Hamilton50 min
Jan 21, 11:14 PM CSTFlash Flood WarningPAHHamilton, Jefferson, Wayne6 hr
Jan 22, 12:05 AM CSTSevere Thunderstorm WarningPAHJohnson, Williamson55 min
Jan 22, 12:32 AM CSTSevere Thunderstorm WarningPAHUnion28 min
Jan 22, 1:06 AM CSTSevere Thunderstorm WarningPAHJohnson, Pope39 min
Jan 22, 1:30 AM CSTSevere Thunderstorm WarningPAHGallatin, Hardin, Saline30 min
Jan 22, 1:45 AM CSTSevere Thunderstorm WarningPAHWhite45 min
Jan 22, 5:25 AM CSTFlash Flood WarningPAHAlexander, Union6 hr
Jan 22, 5:25 AM CSTFlash Flood WarningPAHJackson, Williamson6 hr
Jan 21, 6:18 PM CSTTornado WarningPAHStoddard32 min
Jan 21, 6:48 PM CSTTornado WarningPAHNew Madrid, Stoddard47 min
Jan 21, 6:58 PM CSTTornado WarningPAHButler47 min
Jan 21, 7:45 PM CSTTornado WarningPAHButler, Stoddard, Wayne45 min
Jan 21, 7:50 PM CSTFlash Flood WarningPAHCape Girardeau, Scott, Stoddard9 hr
Jan 21, 9:30 PM CSTFlash Flood WarningPAHBollinger, Butler, Wayne8 hr
Jan 21, 9:30 PM CSTFlash Flood WarningPAHPerry8 hr
Jan 21, 9:30 PM CSTFlash Flood WarningPAHRipley8 hr
Jan 21, 9:31 PM CSTSevere Thunderstorm WarningPAHNew Madrid, Stoddard49 min
Jan 21, 10:00 PM CSTTornado WarningPAHScott35 min
Jan 21, 10:23 PM CSTTornado WarningPAHButler, Stoddard62 min
Jan 21, 11:13 PM CSTSevere Thunderstorm WarningPAHNew Madrid32 min
Jan 21, 11:24 PM CSTSevere Thunderstorm WarningPAHScott36 min
Jan 21, 11:30 PM CSTTornado WarningPAHNew Madrid30 min
Jan 21, 11:34 PM CSTSevere Thunderstorm WarningPAHStoddard41 min
Jan 22, 5:25 AM CSTFlash Flood WarningPAHButler, Stoddard6 hr

Nearby

Tornado Warnings in Missouri, 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.