Alert archive / Louisiana / Flash Flood Warnings in 2002
Flash Flood Warning 18, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Sep 26, 2002, 8:24 AM CDT for Saint Tammany Parish, Louisiana. It was in force for 3 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
- Sep 26, 2002, 8:24 AM CDT (13:24 UTC)
- Expired
- Sep 26, 2002, 11:15 AM CDT
- In force
- 3 hr
- 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, 1.4 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 941 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KLIX 261324 FFWNEW LAC103-261615- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 820 AM CDT THU SEP 26 2002 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A * FLASH FLOOD WARNING FOR... ST. TAMMANY PARISH IN SOUTHEAST LOUISIANA THIS INCLUDES THE CITIES OF...MANDEVILLE...COVINGTON...FOLSOM ABITA SPRINGS * UNTIL 1115 AM CDT * AT 815 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN ACROSS THE WESTERN SECTIONS OF SAINT TAMMANY PARISH...MOVING WEST AT 5 TO 10 MPH. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROAD. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY. TO REPORT SEVERE WEATHER 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 |
|---|---|---|---|---|
| Sep 25, 8:59 PM CDT | Flash Flood Warning | LIX | Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles | 6 hr |
| Sep 25, 11:41 PM CDT | Tornado Warning | LIX | Jefferson, Lafourche | 109 min |
| Sep 25, 11:41 PM CDT | Tornado Warning | LIX | Lafourche | 34 min |
| Sep 26, 12:20 AM CDT | Tornado Warning | LIX | Terrebonne | 40 min |
| Sep 26, 12:20 AM CDT | Tornado Warning | LIX | Lafourche | 40 min |
| Sep 26, 1:06 AM CDT | Tornado Warning | LIX | Lafourche | 24 min |
| Sep 26, 1:06 AM CDT | Tornado Warning | LIX | Terrebonne | 24 min |
| Sep 26, 1:35 AM CDT | Tornado Warning | LIX | Terrebonne | 7 days |
| Sep 26, 2:21 AM CDT | Tornado Warning | LIX | Terrebonne | 39 min |
| Sep 26, 3:22 AM CDT | Flash Flood Warning | LIX | Assumption, Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard and 4 more | 4 hr |
| Sep 26, 7:41 AM CDT | Flash Flood Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 3 hr |
| Sep 26, 10:56 AM CDT | Flash Flood Warning | LIX | Jefferson, Plaquemines, Saint Bernard | 2 hr |
| Sep 26, 11:52 AM CDT | Flash Flood Warning | LIX | Saint Tammany | 3 hr |
| Sep 26, 1:30 PM CDT | Flash Flood Warning | LIX | Jefferson | 3 hr |
| Sep 26, 2:26 PM CDT | Flash Flood Warning | LIX | Saint John the Baptist, Tangipahoa | 4 hr |
| Sep 26, 3:08 PM CDT | Flash Flood Warning | LIX | Saint Tammany | 4 hr |
| Sep 26, 6:01 PM CDT | Flash Flood Warning | LIX | Livingston, Saint John the Baptist, Saint Tammany, Tangipahoa | 6 hr |
Nearby
Flash Flood Warnings in Louisiana, 2002Every flash flood warning in 2002
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.