Alert archive / Mississippi / Flash Flood Warnings in 1997

Flash Flood Warning 27, NWS Jackson, MS

June 18, 1997Forrest County, Lamar County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jun 18, 1997, 5:33 AM CDT for Forrest County, Lamar County, Mississippi. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 18, 1997, 5:33 AM CDT (10:33 UTC)
Expired: Jun 18, 1997, 8:00 AM CDT
In force: 2 hr
Issued by: NWS Jackson, MS
Area: Whole counties

Counties Forrest County, MS, Lamar County, MS

The radar

The Mobile radar (KMOB), 123 km from the middle of the area, began a volume at 10:34 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 10.6 hours before the alert went out and 110 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: 24 J/kg
Mixed-layer CIN: -314 J/kg
Mixed-layer LCL: 975 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 126 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 181035
FFWJAN
MSC035-073-181300-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
533 AM CDT WED JUN 18 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  800 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST MISSISSIPPI
 
   ...CENTRAL AND SOUTHERN FORREST COUNTY...SOUTHEASTERN LAMAR COUNTY
 
AT 530 AM WEATHER SERVICE RADAR INDICATED A BAND OF STRONG THUNDERSTORMS
WITH HEAVY RAINFALL MOVING FROM SOUTHEAST LAMAR COUNTY ACROSS CENTRAL
FORREST COUNTY.  RADAR RAINFALL ESTIMATES INDICATE THE STORMS HAVE
DUMPED AT LEAST 2 INCHES OF RAIN IN THE PAST HOUR OVER SOUTHEAST
LAMAR COUNTY AND CENTRAL FORREST COUNTY.  HEAVY RAINFALL WILL SHIFT FROM
SOUTHEAST LAMAR COUNTY ACROSS CENTRAL AND SOUTHERN FORREST COUNTY THROUG630 AM.  THE RAINFALL WILL TAPER OFF AFTER 630 AM.  THE GREATEST THREAT 
FLASH FLOODING WILL EXIST NEAR AND SOUTHEAST OF THE PURVIS AREA IN LAMAR
COUNTY...AND BETWEEN HATTIESBURG AND BROOKLYN IN FORREST COUNTY.
 
RAINFALLS OF 2 TO 3 INCHES IN A SHORT PERIOD OF TIME WILL PRODUCE
FLOODING IN LOW LYING AREAS AND AREAS WITH POOR DRAINAGE...AND WILL
CAUSE SMALL CREEKS TO OVERFLOW.
 
 
D
O NOT DRIVE YOUR CAR INTO AREAS WHERE WATER COVERS THE ROAD.
THE WATER DEPTH MAY BE TOO DEEP TO ALLOW YOU TO CROSS SAFELY.
VEHICLES CAUGHT IN RISING WATER MUST BE ABANDONED QUICKLY.
<
 
 
63

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 4:48 AM CDT	Flash Flood Warning	JAN	Marion	3 hr
Jun 18, 8:40 AM CDT	Flash Flood Warning	JAN	Marion	3 hr

Nearby

Flash Flood Warnings in Mississippi, 1997 Every flash flood warning in 1997

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; radar from the NEXRAD Level II archive.