Alert archive / Louisiana / Flash Flood Warnings in 2000

Flash Flood Warning 6, NWS Jackson, MS

April 2, 2000Concordia Parish, Tensas Parish, Louisiana; Adams County, Jefferson County, Mississippi

NWS Jackson, MS issued this flash flood warning at Apr 2, 2000, 6:41 PM CDT for Concordia Parish, Tensas Parish, Louisiana; Adams County, Jefferson 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 outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Apr 2, 2000, 6:41 PM CDT (23:41 UTC)
Expired: Apr 2, 2000, 9:00 PM CDT
In force: 2 hr
Issued by: NWS Jackson, MS
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Concordia Parish, LA, Tensas Parish, LA, Adams County, MS, Jefferson County, MS

The radar

The Ft Polk radar (KPOE), 154 km from the middle of the area, began a volume at 23:41 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, 11.7 hours before the alert went out and 150 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: 606 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 682 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 258 m²/s²
0-3 km storm-relative helicity: 230 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 4.3

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KJAN 022343 COR
FFWJAN
LAC029-107-MSC001-063-030200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED UGC EXPIRATION
NATIONAL WEATHER SERVICE JACKSON MS
641 PM CDT SUN APR 2 2000

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JEFFERSON COUNTY IN SOUTHWEST MISSISSIPPI
  CONCORDIA PARISH IN NORTHEAST LOUISIANA
  TENSAS PARISH IN NORTHEAST LOUISIANA
  ADAMS COUNTY IN SOUTHWEST MISSISSIPPI

* UNTIL 900 PM CDT

* NUMEROUS THUNDERSTORMS HAVE MOVED ACROSS THE WARNED AREA LATE THIS 
  AFTERNOON...PRODUCING WIDESPREAD RAINFALL AMOUNTS NEAR 2 INCHES. 
  SATELLITE AND RADAR INDICATED THAT STRONG THUNDERSTORMS PRODUCING  
  TORRENTIAL RAIN WILL MOVE ACROSS THE WARNED AREA THROUGH THE       
  EVENING...WITH FLOODING OF STREAMS...HIGHWAYS...AND LOW LYING AREAS
  LIKELY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.

LAT...LON 3154 9171 3141 9156 3178 9106 3197 9128

64

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 2, 5:50 AM CDT	Severe Thunderstorm Warning	JAN	Morehouse, West Carroll	25 min
Apr 2, 6:13 AM CDT	Severe Thunderstorm Warning	JAN	East Carroll, West Carroll	32 min
Apr 2, 4:44 PM CDT	Severe Thunderstorm Warning	JAN	Richland	31 min
Apr 2, 5:21 PM CDT	Severe Thunderstorm Warning	JAN	Madison	39 min
Apr 2, 5:37 PM CDT	Tornado Warning	JAN	Madison	23 min
Apr 1, 6:36 PM CST	Severe Thunderstorm Warning	JAN	Humphreys, Leflore	39 min
Apr 1, 6:53 PM CST	Tornado Warning	JAN	Holmes	37 min
Apr 1, 10:36 PM CST	Severe Thunderstorm Warning	JAN	Carroll, Leflore	29 min
Apr 1, 10:44 PM CST	Flash Flood Warning	JAN	Grenada	4 hr
Apr 1, 11:05 PM CST	Severe Thunderstorm Warning	JAN	Montgomery	25 min
Apr 1, 11:26 PM CST	Flash Flood Warning	JAN	Carroll, Leflore	4 hr
Apr 1, 11:33 PM CST	Severe Thunderstorm Warning	JAN	Washington	27 min
Apr 2, 7:08 AM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey	37 min
Apr 2, 7:29 AM CDT	Severe Thunderstorm Warning	JAN	Holmes, Yazoo	31 min
Apr 2, 7:41 AM CDT	Severe Thunderstorm Warning	JAN	Madison	34 min
Apr 2, 9:40 AM CDT	Flash Flood Warning	JAN	Holmes	110 min
Apr 2, 4:02 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Warren	43 min
Apr 2, 4:31 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	44 min
Apr 2, 4:47 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson	28 min
Apr 2, 5:09 PM CDT	Severe Thunderstorm Warning	JAN	Madison	36 min
Apr 2, 5:15 PM CDT	Tornado Warning	JAN	Madison, Rankin	30 min
Apr 2, 5:24 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne	36 min
Apr 2, 5:34 PM CDT	Tornado Warning	JAN	Leake, Scott	26 min
Apr 2, 5:45 PM CDT	Severe Thunderstorm Warning	JAN	Madison	45 min
Apr 2, 5:52 PM CDT	Severe Thunderstorm Warning	JAN	Warren	38 min
Apr 2, 5:55 PM CDT	Severe Thunderstorm Warning	JAN	Attala	50 min
Apr 2, 5:58 PM CDT	Tornado Warning	JAN	Leake	47 min
Apr 2, 6:02 PM CDT	Severe Thunderstorm Warning	JAN	Newton, Scott	43 min
Apr 2, 6:04 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	41 min
Apr 2, 6:13 PM CDT	Tornado Warning	JAN	Neshoba	47 min
Apr 2, 6:17 PM CDT	Severe Thunderstorm Warning	JAN	Simpson, Smith	43 min
Apr 2, 6:30 PM CDT	Severe Thunderstorm Warning	JAN	Madison	45 min
Apr 2, 6:34 PM CDT	Tornado Warning	JAN	Newton	26 min
Apr 2, 6:45 PM CDT	Severe Thunderstorm Warning	JAN	Rankin	60 min
Apr 2, 6:50 PM CDT	Tornado Warning	JAN	Kemper, Noxubee, Winston	40 min
Apr 2, 6:53 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne	37 min
Apr 2, 6:55 PM CDT	Severe Thunderstorm Warning	JAN	Hinds	20 min

Nearby

Flash Flood Warnings in Louisiana, 2000 Flash Flood Warnings in Mississippi, 2000 Every flash flood warning in 2000

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.