Alert archive / Mississippi / Flash Flood Warnings in 1987

Flash Flood Warning 2, NWS Jackson, MS

January 21, 1987Wayne County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jan 21, 1987, 5:54 PM CST for Wayne County, Mississippi. It was in force for 101 min.

The area

The counties it named.

The facts

Issued: Jan 21, 1987, 5:54 PM CST (23:54 UTC)
Expired: Jan 21, 1987, 7:35 PM CST
In force: 101 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Wayne County, MS

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 11.9 hours before the alert went out and 151 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1082 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 2 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.

000 
TTAA00 KMEI 212354
FFWMEI
MSC153-220135-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MERIDIAN MS
554 PM CST WED JAN 21 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 735 PM CST FOR PEOPLE IN THE FOLLOWING COUNTY OF

EAST CENTRAL MISSISSIPPI...EXTREME WAYNE


  AT 535 PM CST WAYNE COUNTY CIVIL DEFENSE REPORTED SEVERAL AREAS
  OF WAYNESBORO FLOODED AND HEAVY RAIN WAS FALLING.  SINCE THE
  CHICKASAWHAY RIVER IS ALREADY NEAR BANKFUL THE DRAINAGE CREEKS
  AND STREAM WILL NOT BE ABLE TO HANDLE THIS EXTRA RAINFALL.
  THOSE OF YOU LIVING ALONG OR NEAR THE SMALL CREEKS AND STREAM
  SHOULD GET OUT NOW.

 A F<LASH FLOOD WARNING MEANS THAT FLASH FLOODING HAS ALREADY BEEN
 REPORTED OR IS IMMENENT. PEOPLE IN THE WARNING AREA SHOULD SEEK
 HIGH GROUND. DO NOT ATTEMPT TO DRIVE ACROSS A FLOODED AREA.

What forecasters said that day

The local office's own words before this flash flood 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 21, 4:26 PM CST, 1 hour 28 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  JACKSON MS
430 PM CST WED JAN 21 1987

    .....TRAVELER'S ADVISORIES ISSUED FOR DEVELOPING STORM SYSTEM.....

THE APPROACHING LOW PRESSURE SYSTEM THAT THE NATIONAL WEATHER SERVICE
HAS BEEN CLOSELY MONITORING SINCE EARLY YESTERDAY CONTINUES TO MOVE
TOWARD MISSISSIPPI.  THE LEADING EDGE OF THE WINTER WEATHER SYSTEM HAS
ALREADY MADE ITS WAY INTO SOME OF THE SOUTHERN COUNTIES...WHERE PATCHES
OF SLEET AND SNOW HAVE BEEN OCCURRING SINCE THIS MORNING.

AS THE STORM SYSTEM CONTINUES TO GET STRONGER AND MOVE CLOSER TO
MISSISSIPPI TONIGHT...THE LIKELIHOOD OF SNOW WILL INCREASE OVER THE
SOUTHERN AND CENTRAL SECTIONS.  AS A RESULT...TRAVELER'S ADVISORIES HAVE
BEEN ISSUED FROM NEAR A ROLLING FORK TO COLUMBUS LINE SOUTHWARD TO NEAR
A MCCOMB TO HATTIESBURG LINE.  THIS TAKES IN MUCH OF SOUTH AND CENTRAL
MISSISSIPPI...WITH THE EXCEPTION OF THE COAST AND THE SOUTHEASTERN
CORNER.
<                                                                       <
SNOW ACCUMULATIONS OF 1 TO 2 INCHES ARE LIKELY IN THESE AREAS AND
WILL HAMPER DRIVING CONDITIONS TONIGHT.  MOTORISTS TRAVELING THROUGH
THESE AREAS SHOULD BE PREPARED FOR ICY ROADS AND REDUCED VISIBILITIES
LATER TONIGHT AS THE STORM SYSTEM APPROACHES.

THERE IS A CHANCE THIS WINTER STORM SYSTEM WILL INTENSIFY EVEN
FURTHER AND PRODUCE SNOW AMOUNTS OF 2 INCHES OR MORE.  IF THIS APPEARS
LIKELY...A WINTER STORM WARNING WOULD BE ISSUED.  PEOPLE IN SOUTH
AND CENTRAL MISSISSIPPI SHOULD THEREFORE STAY TUNED TO NOAA WEATHER
RADIO...AND COMMERCIAL RADIO AND TELEVISION FOR THE LATEST DEVELOPMENTS.

Nearby

Flash Flood Warnings in Mississippi, 1987 Every flash flood warning in 1987

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.