Alert archive / Arkansas / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 21, NWS Memphis, TN

April 15, 1994Greene County, Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Apr 15, 1994, 9:28 AM CDT for Greene County, Arkansas. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
Apr 15, 1994, 9:28 AM CDT (14:28 UTC)
Expired
Apr 15, 1994, 10:15 AM CDT
In force
47 min
Issued by
NWS Memphis, TN
Area
Whole counties

County Greene County, AR

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 2.5 hours before the alert went out and 153 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 12:00Z on 1994-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1448 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 1994-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 256 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
1448 J/kg
Mixed-layer CIN
-187 J/kg
Mixed-layer LCL
614 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
256 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMEM 151428
SVRMEM
ARC055-151515-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
928 AM CDT FRI APR 15 1994
 
THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 AM CDT
FOR PERSONS IN THE FOLLOWING LOCATIONS......
 
IN EAST ARKANSAS
 
   ...GREENE COUNTY
 
DOPPLER WEATHER RADAR LOCATED A SEVERE THUNDERSTORM ABOUT THREE MILES
SOUTHEAST OF O'KEAN IN WESTERN GREENE COUNTY AT 925 PM. MOVING TOWARD
THE EAST AT NEARLY 40 MPH THIS STORM WILL BRING LARGE HAIL AND HIGH WIND
TO THE O'KEAN .. EVENING STAR .. DELAPLAINE AREAS BETWEEN 930 AM AND
1015 THIS MORNING.
 
 
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.

What forecasters said that day

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

In the hours before

Special weather statement, Apr 15, 4:50 AM CDT, 4 hours 38 minutes before
TNZALL-151345-

TENNESSEE SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEMPHIS TN
446 AM CDT FRI APR 15 1994

    ...SEVERE WEATHER TO AFFECT TENNESSEE TODAY AND TONIGHT...

A COLD FRONT AT 5 A.M. THIS MORNING EXTENDED FROM NORTHWESTERN ILLINOIS
TO NORTHWESTERN ARKANSAS THEN INTO CENTRAL OKLAHOMA. THE FRONT IS
EXPECTED TO MOVE THROUGH WEST TENNESSEE BEFORE EVENING..REACHING THE
PLATEAU AROUND MIDNIGHT AND SHOULD BE JUST EAST OF THE STATE BY EARLY
SATURDAY MORNING.

THE ATMOSPHERE ALONG AND TO THE EAST OF THE FRONT IS VERY UNSTABLE AND
MOIST..AND SEVERE WEATHER WATCHES ARE ALREADY IN EFFECT OVER SECTIONS OF
ILLINOIS AND MISSOURI THIS MORNING.

SO RESIDENTS OF TENNESSEE SHOULD BE ALERT FOR THE DEVELOPMENT OF SEVERE
WEATHER TODAY..AND FOR THE WEST THAT COULD MEAN LATER THIS MORNING..BUT
THE THUNDERSTORMS WOULD SPREAD EASTWARD AS THE DAY PROGRESSES.

IF THE FRONT MOVES AS EXPECTED..THE THREAT OF SEVERE WEATHER WOULD
CONTINUE TO APPLY TO THE PLATEAU AND EAST TONIGHT.

THE PROBABILITY OF SEVERE WEATHER RAPIDILY DECLINES ONCE THE COLD FRONT
MOVES TO THE EAST OF ANY GIVEN AREA..BUT UNTIL THEN REMEMBER THAT THIS
IS A REAL THREAT. SEVERE WEATHER MEANS DAMAGING WINDS AND LARGE
HAIL..AND COULD BE LIFE THREATENING. THE TORRENTIAL RAINS THAT ARE
ASSOCIATED WITH SOME OF THE STRONGER STORMS COULD ALSO RESULT IN
LOCALLIZED FLOODING.

PLEASE MONITOR YOUR NOAA WEATHER RADIO OR COMMERCIAL RADIO AND
TELEVISION FOR ANY ADDITIONAL STATEMENTS OR WARNINGS.
Special weather statement, Apr 15, 8:36 AM CDT, 52 minutes before
MSZ005-006-009-017-016-002-003-004-013-014-015-023-024-030-031-
033-151445-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUPELO MS
836 AM CDT FRI APR 15 1994

.....TORNADO WATCH IN EFFECT FOR PORTIIONS OF NORTHEAST AND EAST-CENTRAL
MISSISSIPPI UNTIL 3 PM CDT.....

AT 830 AM CDT...NATIONAL WEATHER SERVICE RADAR AT TUPELO SHOWED
SCATTERED VERY STRONG THUNDERSTORMS OVER EAST-CENTRAL MISSISSIPPI AND
NORTHWEST ALABAMA MOVING TO THE NORTHEAST AT 35 MILES AN HOUR.

THE STRONGEST THUNDERSTORMS IN EAST-CENTRAL MISSISSIPPI WERE LOCATED
FROM NORTH OF COLUMBUS SOUTHWEST TO NEAR JACKSON.

PERSONS IN EAST-CENTRAL MISSISSIPPI SHOULD REMAIN ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS AND TAKE NECESSARY ACTIONS IF A WARNING IS
ISSUED.

NNNN
Special weather statement, Apr 15, 8:59 AM CDT, 29 minutes before
TNZ001-002-019-048-049-088-MSZ001-007-010-ARZ009-018-028-035-036-
048-151500-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
859 AM CDT FRI APR 15 1994

...TORNADO WATCH NUMBER 90 IN EFFECT UNTIL NOON FOR NORTHEAST ARKANSAS
... NORTHWEST TENNESSEE AND THE MISSOURI BOOTHEEL...

...TORNADO WATCH NUMBER 91 CONTINUES FOR MOST OF MIDDLE TENNESSEE AND
FOR PARTS OF ALABAMA AND MISSISSIPPI UNTIL 3 PM...

AREAS OF THUNDERSTORMS WERE ACTIVE IN TWO DISTINCT LOCATIONS AT 850 AM
... ONE OVER NORTHERN ARKANSAS ... SOUTHERN MISSOURI ... AND INTO
EXTREME NORTHWEST TENNESSEE.  THE OTHER AREA OF STRONG THUNDERSTORMS WAS
OVER CENTRAL AND EAST MISSISSIPPI AND PARTS OF ALABAMA.

DOPPLER WEATHER RADAR INDICATED THE STRONGEST STORMS WERE OVER NORTHERN
ARKANSAS NEAR BIGGERS IN SOUTHWEST CLAY COUNTY ... CLOSE TO IMBODEN NEAR
THE LAWRENCE / RANDOLPH COUNTY LINE.  THESE STORMS WERE MOVING TOWARD
THE EAST AT NEARLY 40 MPH.  HIGH WIND AND HAIL WERE INDICATED WITH THE
STRONGEST STORMS.

AN AREA OF HIGH WIND AND SHOWERS WAS SHOWN TO BE APPROACHING THE
MISSISSIPPI RIVER THROUGH ST FRANCIS .. CROSS .. CRITTENDEN .. AND
MISSISSIPPI COUNTIES OF NORTHEAST ARKANSAS.  THESE AREA OF WIND AND
SHOWERS WILL MOVE ACROSS THE RIVER INTO OBION .. LAKE .. DYER ..
LAUDERDALE .. TIPTON .. AND SHELBY COUNTIES OF WEST TENNESSEE BY 930 AM.

YOU NEED TO STAY ABREAST OF LOCAL WEATHER CONDITIONS DURING THIS
MORNING/S DANGEROUS WEAlTHER SITUATION.  STAY TUNED TO LOCAL RADIO/TV OR
NOAA WEATHER RADIO AND LISTEN FOR LATER BULLETINS.
Special weather statement, Apr 15, 9:07 AM CDT, 21 minutes before
MSZ005-006-009-017-016-002-003-004-013-014-015-023-024-030-031-
033-151515-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUPELO MS
907 AM CDT FRI APR 15 1994

.....TORNADO WATCH NUMBER 91 IN EFFECT UNTIL 3 PM CDT FOR PARTS OF
NORTHEAST AND EASTCENTRAL MISSISSIPPI.....

AT 858 AM CDT...NATIONAL WEATHER SERVICE RADAR IN TUPELO CONTINUED TO
SHOW SCATTERED STRONG THUNDERSTORMS OVER NORTHWEST ALABAMA AND
EASTCENTRAL MISSISSIPPI MOVING TO THE NORTHEAST AT 35 MILE AN HOUR.

THE STRONGEST THUNDERSTORMS IN EASTCENTRAL MISSISSIPPI WERE LOCATED OVER
KEMPER..NESHOBA..NOXUBEE AND WINSTON COUNTIES.

RESIDENTS OVER NORTH MISSISSIPPI SHOULD REMAIN ALERT TO THE WEATHER
CONDITIONS TODAY AS MORE THUNDERSTORMS ARE EXPECTED TO DEVELOP WITH THE
AFTERNOON HEATING AND ALSO MOVE IN FROM THE WEST WITH AN APPROACHING
COLD FRONT.

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 1:23 PM CDTTornado WarningMEGSt. Francis22 min
Apr 15, 1:27 PM CDTSevere Thunderstorm WarningMEGCrittenden33 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1994Every severe thunderstorm warning in 1994

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.