Alert archive / Mississippi / Flash Flood Warnings in 1989

Flash Flood Warning 10, NWS Jackson, MS

May 18, 1989Rankin County, Simpson County, Mississippi

NWS Jackson, MS issued this flash flood warning at May 18, 1989, 8:01 PM CDT for Rankin County, Simpson County, Mississippi. It was in force for 119 min.

The area

The counties it named.

The facts

Issued: May 18, 1989, 8:01 PM CDT (01:01 UTC)
Expired: May 18, 1989, 10:00 PM CDT
In force: 119 min
Issued by: NWS Jackson, MS
Area: Whole counties

Counties Rankin County, MS, Simpson 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 00:00Z, 1.0 hours before the alert went out and 29 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: 45 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 588 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 250 m²/s²
0-3 km storm-relative helicity: 386 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 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, May 18, 5:29 PM CDT, 2 hours 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MERIDIAN MS
525 PM CDT THU MAY 18 1989

 TORNADO WATCH NUMBER 271 IS IN EFFECT UNTIL 1000 PM CDT
AND INCLUDES CLARKE...JONES...AND WAYNE COUNTIES IN EAST CENTRAL
MISSISSIPPI AND CHOCTAW COUNTY IN WEST CENTRAL ALABAMA.

AT 520 PM CDT MERIDIAN WEATHER RADAR INDICATED AN 80 MILE WIDE AREA OF
RAIN WITH STRONG THUNDERSTORMS EXTENDED FROM OKOLONA MISSISSIPPI TO
NEAR MCCOMB MISSISSIPPI. THE HEAVIEST RAINFALL WAS OCCURING IN
LAUDERDALE AND CLARKE COUNTIES.

THE AREA WAS MOVING EAST AT 10 MPH.

EVERYONE IN OR NEAR THE WATCH AREA SHOULD REMAIN ALERT FOR SEVERE
WEATHER THIS EVENING AND TONIGHT.

Special weather statement, May 18, 5:49 PM CDT, 2 hours 12 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
545 PM CDT THU MAY 18 1989

AT 540 PM...NUMEROUS HEAVY THUNDERSTORMS WERE IN A 30 MILE WIDE BAND
FROM CANTON TO JACKON TO MCCOMB. THESES THUNDERSTORMS ARE PRODUCING
VERY HEAVY RAINS AS THE BAND MOVES TO THE EAST AT 10 MPH.

OTHER SHOWERS AND THUNDERSTORMS COVER MOST OF MISSISSIPPI EAST OF A
MERIDIAN TO COLUMBIA LINE. THE AREA IS MOVING EAST AT 20 MPH.

Special weather statement, May 18, 6:00 PM CDT, 2 hours 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
600 PM CDT THU MAY 18 1989

...A HIGH WIND WARNING FOR NORTHWEST MISSISSIPPI UNTIL 730 PM...

AROUND 530 PM...HIGH WINDS ESTIMATED AT ABOUT 50 MILES AN HOUR WERE
REPORTED OVER WESTERN BOLIVAR COUNTY.  SOME TREES WERE DOWN OVER ROADS
...SOME POWER LINES WERE BLOWN DOWN...AND THERE HAS BEEN SOME REPORTED
STRUCTURAL DAMAGE.

THESE HIGH WINDS ARE NOT DUE TO THUNDERSTORMS...BUT RATHER TO A VERY
STRONG PRESSURE GRADIENT OVER NORTHWEST MISSISSIPPI.  MORE HIGH WINDS
ARE POSSIBLE OVER NORTHWEST MISSISSIPPI...GENERALLY WEST OF A GREENWOOD
TO OXFORD LINE UNTIL 730 PM.  IF CONDITIONS PERSIST LONGER THAN THAT...
AND AN UPDATED STATEMENT WILL HAVE TO BE ISSUED.

Local storm report, May 18, 6:48 PM CDT, 1 hour 13 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
648 PM CDT THU MAY 18 1989

114 PM...FAYETTE...JEFFERSON CO...PENNY SIZED HAIL REPORTED BY FAYETTE
         P.D.
208 PM...4 MILES SE OF PINOLA...SIMPSON CO...DIME SIZED HAIL.
215 PM...TREES AND POWER LINES DOWN NEAR PINOLA...TORNADO HAS NOT BEEN
         CONFIRMED SO FAR.
510 PM...JACKSON...STREET FLOODING REPORTED AT JACKSON MALL BY JACKSON
         -HINDS EOC.
515 PM...3 MILES EAST OF THE PIKE/AMITE COUNTY LINE (AMITE CO)...HWY 24
         ...TREES ON CARS, HOMES, ROADS.  FENCES ALSO BLOWN DOWN.
535 PM...ROSEDALE...BOLIVAR CD REPORTED TREES DOWN...POWER LINES DOWN
         ...SOME STRUCTURAL DAMAGE BY HIGH WINDS (NO THUNDERSTORMS IN
         THE AREA AT THE TIME).
610 PM...CLARKSDALE...COAHOMA CO...CLARKSDALE PD REPORTED 3 LARGE TREES
         DOWN AND SOME PLATE GLASS WINDOWS BLOWN OUT OF A COUPLE
         BUILDINGS (NO THUNDERSTORMS IN THE AREA AT THE TIME).

Special weather statement, May 18, 7:18 PM CDT, 43 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MERIDIAN MS
715 PM CDT THU MAY 18 1989

 TORNADO WATCH NUMBER 271 IS IN EFFECT FOR SOUTHEAST MISSISSIPPI
AND SOUTHWEST ALABAMA UNTIL 1000 PM CDT. THE WATCH INCLUDES CLARKE...
JONES...AND WAYNE COUNTIES IN EAST CENTRAL MISSISSIPPI AND CHOCTAW
COUNTY IN WEST CENTRAL ALABAMA.

AT 710 PM CDT MERIDIAN WEATHER RADAR INDICATED A 125 MILE WIDE AREA OF
RAIN WITH STRONG THUNDERSTORMS EXTENDED FROM OKOLONA MISSISSIPPI TO
NEAR TYLERTOWN MISSISSIPPI. THE HEAVIEST RAINFALL WAS OCCURING IN
LAUDERDALE COUNTY.

THE RAIN AREA WAS MOVING EAST AT 10 MPH WHILE THE THUNDERSTORMS WERE
MOVING NORTHEAST AT 30 MPH.

EVERYONE IN OR NEAR THE WATCH AREA SHO$ULD REMAIN ALERT FOR SEVERE
WEATHER THIS EVENING AND TONIGHT.

Special weather statement, May 18, 7:45 PM CDT, 16 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 7:18 PM CDT	Flash Flood Warning	JAN	Marion, Walthall	3 hr
May 18, 7:18 PM CDT	Flash Flood Warning	JAN	Amite, Pike, Wilkinson	3 hr
May 18, 7:31 PM CDT	Flash Flood Warning	JAN	Copiah, Hinds	2 hr
May 18, 7:31 PM CDT	Flash Flood Warning	JAN	Lincoln	2 hr

Nearby

Flash Flood Warnings in Mississippi, 1989 Every flash flood warning in 1989

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.