Alert archive / Louisiana / Flash Flood Warnings in 2001

Flash Flood Warning 21, NWS New Orleans, LA

June 7, 2001Saint Tammany Parish, Louisiana

NWS New Orleans, LA issued this flash flood warning at Jun 7, 2001, 1:04 PM CDT for Saint Tammany Parish, Louisiana. It was in force for 116 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: Jun 7, 2001, 1:04 PM CDT (18:04 UTC)
Expired: Jun 7, 2001, 3:00 PM CDT
In force: 116 min
Issued by: NWS New Orleans, LA
Area: Whole counties

County Saint Tammany Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 6.1 hours before the alert went out and 30 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: 1900 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 604 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 132 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 
WGUS54 KLIX 071807
FFWLIX
LAC103-072000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
104 PM CDT THU JUN 7 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ST. TAMMANY PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITIES OF...COVINGTON...MANDEVILLE AND SLIDELL

* UNTIL 300 PM CDT

* AT 100 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY
  HEAVY RAIN OVER THE WESTERN HALF OF ST TAMMANY PARISH SPREADING
  EAST AT 20 MPH. RAINFALL RATES OF 2 TO 3 INCHES PER HOUR WAS
  INDICATED BY RADAR.

  DUE TO SATURATED GROUND...FLOODING OF ROADWAYS AND LOW LYING
  AREAS IS IMMINENT.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROAD.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABONDONED. MOVE TO HIGHER
GROUND.

TO REPORT FLOODING HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 6, 11:45 PM CDT	Flash Flood Warning	LIX	Lafourche, Terrebonne	90 min
Jun 7, 1:15 AM CDT	Flash Flood Warning	LIX	Lafourche, Saint James, Saint John the Baptist, Terrebonne	4 hr
Jun 7, 7:53 AM CDT	Severe Thunderstorm Warning	LIX	East Feliciana, West Feliciana	52 min
Jun 7, 10:10 AM CDT	Flash Flood Warning	LIX	Lafourche, Saint Charles, Saint James, Saint John the Baptist, Terrebonne	4 hr
Jun 7, 10:51 AM CDT	Flash Flood Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston, West Baton Rouge	3 hr
Jun 7, 11:00 AM CDT	Tornado Warning	LIX	Saint John the Baptist	15 min
Jun 7, 11:06 AM CDT	Tornado Warning	LIX	Tangipahoa	24 min
Jun 7, 12:11 PM CDT	Tornado Warning	LIX	Saint Tammany	34 min
Jun 7, 1:35 PM CDT	Tornado Warning	LIX	East Baton Rouge	25 min
Jun 7, 2:11 PM CDT	Flash Flood Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston, West Baton Rouge	4 hr
Jun 7, 2:25 PM CDT	Flash Flood Warning	LIX	Lafourche, Terrebonne	4 hr
Jun 7, 2:55 PM CDT	Flash Flood Warning	LIX	Saint Tammany	3 hr
Jun 7, 3:26 PM CDT	Flash Flood Warning	LIX	Orleans, Saint Bernard	2 hr
Jun 7, 5:48 PM CDT	Tornado Warning	LIX	Saint Tammany	27 min

Nearby

Flash Flood Warnings in Louisiana, 2001 Every flash flood warning in 2001

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.