Alert archive / Mississippi / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 2, NWS Jackson, MS

January 2, 1999Lincoln County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jan 2, 1999, 5:35 AM CST for Lincoln County, Mississippi. It was in force for 50 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jan 2, 1999, 5:35 AM CST (11:35 UTC)
Expired
Jan 2, 1999, 6:25 AM CST
In force
50 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Lincoln County, MS

What was reported inside it

TimeReportWhereRemark
Jan 2, 6:00 AM CSTThunderstorm WindBrookhaven, MSNumerous trees and power lines were blown down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 11.6 hours before the alert went out and 94 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, Jackson, MS at 00:00Z on 1999-01-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Jackson, MS at 00:00Z on 1999-01-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 339 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
540 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
339 m²/s²
0-3 km storm-relative helicity
474 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

999 
WUUS1 KJAN 021135 RRA
SVRJAN
MSC085-021225-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
535 AM CST SAT JAN 2 1999

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LINCOLN COUNTY IN SOUTH CENTRAL MISSISSIPPI

* UNTIL 625 AM CST

* AT 535 AM CST... RADAR INDICATED A SEVERE THUNDERSTORM 9 MILES
  WEST OF BROOKHAVEN... MOVING EAST AT 50 MPH.

* THE FOLLOWING LOCATION IS IN THE PATH OF THIS STORM...
  BROOKHAVEN AT 545 AM CST

DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

68

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, Jan 2, 4:50 AM CST, 45 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
021600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
450 AM CST SAT JAN 2 1999

...THREAT OF SEVERE WEATHER AND FLOODING TODAY TO BE FOLLOWED BY MUCH
COLDER TEMPERATURES...

A LOW PRESSURE SYSTEM WAS DEVELOPING OVER EAST TEXAS EARLY THIS MORNING.
THIS LOW IS EXPECTED TO INTENSIFY TODAY AS IT MOVES NORTHEAST INTO THE
LOWER OHIO VALLEY. A STRONG COLD FRONT ASSOCIATED WITH THE LOW WILL SWEEP
ACROSS THE AREA DURING THE DAY TODAY.

A LARGE AREA OF RAIN AND THUNDERSTORMS WAS OVER NORTHEAST LOUISIANA...
SOUTHEAST ARKANSAS...AND WESTERN MISSISSIPPI EARLY THIS MORNING. THIS
AREA OF PRECIPITATION WILL OVERSPREAD THE ENTIRE AREA THIS MORNING...WITH
RAINFALL THEN DIMINISHING FROM WEST TO EAST BY THE AFTERNOON HOURS.
BEFORE DIMINISHING...RAINFALL COULD BE LOCALLY HEAVY ACROSS THE
REGION...AND A FLOOD WATCH IS IN EFFECT FOR THIS MORNING ACROSS WESTERN
MISSISSIPPI... NORTHEAST LOUISIANA...AND SOUTHEAST ARKANSAS...AND ALL DAY
OVER EASTERN MISSISSIPPI.

IN ADDITION TO THE THREAT OF FLOODING...SEVERE THUNDERSTORMS ARE ALSO
POSSIBLE...MAINLY OVER SOUTHERN MISSISSIPPI. DAMAGING WINDS ARE THE MAIN
THREAT FROM ANY SEVERE STORMS THAT DEVELOP...ALONG WITH A THREAT OF
TORNADOES.

ONCE THE FRONT MOVES THROUGH...MUCH COLDER AIR WILL MOVE INTO THE REGION.
AFTER RELATIVELY MILD EARLY MORNING READINGS IN THE 50S AND 60S...
TEMPERATURES WILL FALL INTO THE 30S AND 40S BY THIS EVENING. GUSTY
NORTHWEST WINDS BEHIND THE FRONT COULD PUSH WIND CHILL READINGS INTO THE
SINGLE DIGITS AND TEENS OVER MUCH OF THE REGION BY TONIGHT. AFTER LOWS
TONIGHT IN THE 20S...TEMPERATURES WILL ONLY RECOVER INTO THE 30S ON
SUNDAY. TEMPERATURES WILL THEN FALL TO VERY COLD OVERNIGHT LOWS RANGING
FROM THE MID TEENS TO MID 20S ON SUNDAY NIGHT.

PEOPLE ACROSS THE REGION SHOULD BE PREPARED FOR THE POSSIBILITY OF SEVERE
WEATHER TODAY...AND THEN FOR THE VERY COLD TEMPERATURES WHICH WILL MOVE
IN LATER TODAY AND TONIGHT. TUNE IN TO NOAA WEATHER RADIO...LOCAL RADIO
OR TV...OR YOUR CABLE TV OUTLET FOR THE LATEST WEATHER INFORMATION.

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 2, 5:01 AM CSTSevere Thunderstorm WarningJANFranklin49 min
Jan 2, 6:25 AM CSTSevere Thunderstorm WarningJANSimpson35 min
Jan 2, 6:35 AM CSTSevere Thunderstorm WarningJANRankin, Scott, Smith45 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1999Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.