Alert archive / Louisiana / Flash Flood Warnings in 1999

Flash Flood Warning 40, NWS Jackson, MS

February 9, 1999Catahoula Parish, Concordia Parish, Louisiana

NWS Jackson, MS issued this flash flood warning at Feb 9, 1999, 5:14 PM CST for Catahoula Parish, Concordia Parish, Louisiana. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Feb 9, 1999, 5:14 PM CST (23:14 UTC)
Expired: Feb 9, 1999, 6:15 PM CST
In force: 61 min
Issued by: NWS Jackson, MS
Area: Whole counties

Counties Catahoula Parish, LA, Concordia Parish, LA

The radar

The Ft Polk radar (KPOE), 125 km from the middle of the area, began a volume at 23:16 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

Jackson, MS (KJAN), launched 12:00Z, 11.2 hours before the alert went out and 178 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: 658 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 497 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 136 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.9

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

Local storm report, Feb 9, 1:53 PM CST, 3 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
153 PM CST TUE FEB 09 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATION....

0130 PM    ST JOSEPH                 LA   FLOODING
02/09/99   TENSAS                         SOME STREETS AND YARDS
                                          FLOODED PER OEP OFFICE

0140 PM    15 SW HAZLEHURST          MS   1.5 INCH HAIL
02/09/99   COPIAH                         REPORTED BY COPIAH COUNTY
                                          GAME MANAGEMENT STAFF

Local storm report, Feb 9, 2:28 PM CST, 2 hours 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
228 PM CST TUE FEB 09 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATION....

0215 PM    10 SW HAZLEHURST          MS   1.75 INCH HAIL
02/09/99   COPIAH                         REPORTED BY CD OFFICE

0231 PM    WESSON                    MS   1.75 INCH HAIL
02/09/99   COPIAH                         REPORTED THROUGH STATE EOC
                                          BY COUNTY CD OFFICE

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 9, 1:18 PM CST	Tornado Warning	JAN	Claiborne, Jefferson	32 min
Feb 9, 1:32 PM CST	Tornado Warning	JAN	Copiah	48 min
Feb 9, 2:15 PM CST	Tornado Warning	JAN	Lincoln	50 min
Feb 9, 2:23 PM CST	Tornado Warning	JAN	Copiah	32 min
Feb 9, 3:01 PM CST	Severe Thunderstorm Warning	JAN	Covington, Jones	49 min
Feb 9, 3:05 PM CST	Tornado Warning	JAN	Lincoln	35 min
Feb 9, 3:14 PM CST	Tornado Warning	JAN	Jefferson Davis	46 min
Feb 9, 4:03 PM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence	47 min
Feb 9, 8:25 AM CST	Severe Thunderstorm Warning	JAN	Franklin	35 min
Feb 9, 11:09 AM CST	Flash Flood Warning	JAN	Franklin	111 min
Feb 9, 11:56 AM CST	Flash Flood Warning	JAN	Tensas	2 hr
Feb 9, 12:30 PM CST	Severe Thunderstorm Warning	JAN	Tensas	30 min
Feb 9, 2:33 PM CST	Severe Thunderstorm Warning	JAN	Catahoula	47 min
Feb 9, 4:18 PM CST	Severe Thunderstorm Warning	JAN	Catahoula	32 min
Feb 9, 4:24 PM CST	Severe Thunderstorm Warning	JAN	Concordia, Tensas	36 min
Feb 9, 4:48 PM CST	Severe Thunderstorm Warning	JAN	Catahoula	37 min
Feb 9, 5:24 PM CST	Severe Thunderstorm Warning	JAN	Catahoula	46 min

Nearby

Flash Flood Warnings in Louisiana, 1999 Every flash flood 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.