Alert archive / Louisiana / Flash Flood Warnings in 2003
Flash Flood Warning 16, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Jun 30, 2003, 5:11 PM CDT for Saint Tammany Parish, Tangipahoa Parish, Washington Parish, Louisiana; Pearl River County, Mississippi. It was in force for 4 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 30, 2003, 5:11 PM CDT (22:11 UTC)
- Expired
- Jun 30, 2003, 9:15 PM CDT
- In force
- 4 hr
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Saint Tammany Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, Pearl River County, MS
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 10.2 hours before the alert went out and 54 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
- 124 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 568 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KLIX 302221 CCA FFWNEW LAC103-105-117-MSC109-010215- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING...CORRECTED FOR CODING NATIONAL WEATHER SERVICE NEW ORLEANS LA 511 PM CDT MON JUN 30 2003 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...SLIDELL...COVINGTON TANGIPAHOA PARISH IN SOUTHEAST LOUISIANA THIS INCLUDES THE CITIES OF...HAMMOND...AMITE WASHINGTON PARISH IN SOUTHEAST LOUISIANA THIS INCLUDES THE CITIES OF...FRANKLINTON...BOGALUSA PEARL RIVER COUNTY IN SOUTHERN MISSISSIPPI THIS INCLUDES THE CITIES OF...POPLARVILLE...PICAYUNE * UNTIL 915 PM CDT * AT 501 PM CDT...AMATEUR RADIO WEATHER SPOTTERS REPORTED FLASH FLOODING OCCURRING IN VARIOUS SECTIONS OF SLIDELL...LACOMBE AND NORTHSHORE AREAS. WAVES OF FOUR FEET WERE INUNDATING SECTIONS ALONG THE LAKEFRONT ALONG LAKE SHORE DRIVE AND CARR DRIVE AND IN EDEN ISLES. TORRENTIAL RAINS AT THE RATE OF TWO INCHES PER HOUR CAN BE EXPECTED ACROSS ST TAMMANY PARISH...MOVING INTO WASHINGTON PARISH AND PEARL RIVER COUNTY THROUGH 8 PM. 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 NOW. 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. $$
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.
NWS New Orleans, LA wrote its last area forecast discussion before this flash flood warning went out at Jun 30, 2:30 PM CDT, 2 hours 41 minutes earlier.
Area forecast discussion, Jun 30, 2:30 PM CDT, 2 hours 41 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 230 PM CDT MON JUN 30 2003 MUCH OF THE SHORT TERM FORECAST IS NOW GUIDED BY GUIDANCE FROM TPC AND HPC AS TROPICAL STORM BILL CONTINUES TO TRACK TOWARD THE SOUTH CENTRAL LOUISIANA COAST. REFER TO THE LATEST ADVISORIES FROM TPC AS WELL AS HURRICANE LOCAL ACTION STATEMENTS ISSUED FROM THIS OFFICE FOR THE LATEST INFORMATION REGARDING THE PROGRESS OF BILL. BY LATE TUESDAY MUSH OF THE ENERGY SHOULD BE NORTH AND NORTHEAST OF OUR CWA. SOUTHERLY TO SOUTHWESTERLY FLOW SHOULD CONTINUE THROUGH THE WEEK...ALLOWING GULF MOISTURE TO CONTINUE TO SPREAD ACROSS THE REGION. A WEAKENING UPPER-LEVEL TROUGH WILL BE OVER THE SOUTHEASTERN STATES AS A HIGH PRESSURE RIDGE BUILDS IN THE DESERT SOUTHWEST. THIS WILL KEEP CHANCES A LITTLE HIGHER DURING THE WEEK. POPS WILL RETURN TO NEAR CLIMO BY THE WEEKEND. PRELIM NUMBERS... MCB 73/86/73/87 9735 BTR 74/86/74/87 9735 MSY 77/87/77/88 9745 GPT 76/85/76/86 9745 .NEW...TROPICAL STORM WARNING PQL TO ATCHAFALAYA RIVER INCLUDING LAKES PONTCHARTRAIN AND MAUREPAS LA...FLOOD WATCH FOR LAZ034>040-046>050-056>070. MS...FLOOD WATCH FOR MSZ068>071-077-080>082. 25
Hazardous weather outlook, Jun 30, 11:13 AM CDT, 5 hours 58 minutes before
LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-011130- HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NEW ORLEANS LA 1100 AM CDT MON JUN 30 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST LOUISIANA AND EXTREME SOUTHWEST AND COASTAL MISSISSIPPI. .DAY ONE...TODAY AND TONIGHT ...A TROPICAL STORM WARNING IS IN EFFECT... ...A TORNADO WATCH IS IN EFFECT THROUGH 400 PM... ...A FLOOD WATCH IS IN EFFECT... TROPICAL STORM BILL CONTINUES TO MOVE NORTH TOWARD THE SOUTH CENTRAL LOUISIANA COAST. REFER TO THE LATEST ADVISORIES ISSUED BY THE NATIONAL HURRICANE CENTER AS WELL AS HURRICANE LOCAL ACTION STATEMENTS AND FLOOD STATEMENTS ISSUED BY THIS OFFICE FOR THE LATEST INFORMATION REGARDING THIS STORM. .DAYS TWO THROUGH SEVEN... THE REMNANTS OF TROPICAL STORM BILL ARE EXPECTED TO MOVE ACROSS NORTHERN MISSISSIPPI ON TUESDAY. HOWEVER...NUMEROUS SHOWERS AND THUNDERSTORMS ARE STILL EXPECTED ACROSS SOUTHEAST LOUISIANA AND SOUTH MISSISSIPPI THROUGH MUCH OF TUESDAY. THIS ACTIVITY IS EXPECTED TO SLOWLY DIMINISH TUESDAY NIGHT. ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE THEN EXPECTED WEDNESDAY THROUGH SATURDAY. .SPOTTER INFORMATION STATEMENT... THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY MANAGEMENT PERSONNEL...IN SUPPORT OF SEVERE WEATHER OPERATIONS...IS REQUESTED AT THIS TIME.
In the hours before
Local storm report, Jun 30, 12:26 PM CDT, 4 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS, LA
1226 PM CDT MON JUN 30 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1210 PM RESERVE LA TORNADO
06/30/03 ST. JOHN THE BAPTIST *** 1 INJ ***
POSSIBLE TORNADO TOUCHDOWN
IN RESERVE AND DAMAGED A
MOBILE HOME WITH ONE INJURY
REPORTED BY PARISH
EMERGENCY MANAGEMENT.Local storm report, Jun 30, 2:54 PM CDT, 2 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS, LA
254 PM CDT MON JUN 30 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1100 AM 2 S VANCLEAVE MS FLOOD
06/30/03 JACKSON PARTS OF HIGHWAY 57 NEAR
LITTLE BLUFF CREEK WASH
AWAY BY FLOODWATERS
REPORTED BY CIVIL DEFENSE.
1150 AM CHALMETTE LA TORNADO
06/30/03 ST. BERNARD POSSIBLE TORNADO UPROOTED
TWO LARGE OAK TREES
REPORTED BY EMERGENCY
MANAGEMENT.
1200 PM DELACROIX LA TORNADO
06/30/03 ST. BERNARD BOAT GARAGE DAMAGED
REPORTED BY EMERGENCY
MANAGEMENT.The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 9:50 AM CDT | Tornado Warning | LIX | Plaquemines | 25 min |
| Jun 30, 10:07 AM CDT | Flash Flood Warning | LIX | Assumption, Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard and 4 more | 4 hr |
| Jun 30, 10:46 AM CDT | Tornado Warning | LIX | Saint Bernard | 44 min |
| Jun 30, 11:54 AM CDT | Tornado Warning | LIX | Saint Bernard | 31 min |
| Jun 30, 12:31 PM CDT | Tornado Warning | LIX | Saint John the Baptist | 29 min |
| Jun 30, 12:43 PM CDT | Tornado Warning | LIX | Orleans | 32 min |
| Jun 30, 1:09 PM CDT | Flash Flood Warning | LIX | Saint Tammany, Tangipahoa | 3 hr |
| Jun 30, 1:17 PM CDT | Tornado Warning | LIX | Saint Tammany | 28 min |
| Jun 29, 9:36 PM CDT | Flash Flood Warning | LIX | Jackson | 3 hr |
| Jun 30, 12:21 AM CDT | Flash Flood Warning | LIX | Jackson | 2 hr |
| Jun 30, 3:57 AM CDT | Flash Flood Warning | LIX | Jackson | 3 hr |
| Jun 30, 7:00 AM CDT | Flash Flood Warning | LIX | Jackson | 6 hr |
| Jun 30, 1:42 PM CDT | Flash Flood Warning | LIX | Jackson | 3 hr |
| Jun 30, 3:34 PM CDT | Flash Flood Warning | LIX | Hancock | 4 hr |
| Jun 30, 6:01 PM CDT | Flash Flood Warning | LIX | Harrison, Jackson | 3 hr |
Nearby
Flash Flood Warnings in Louisiana, 2003Flash Flood Warnings in Mississippi, 2003Every flash flood warning in 2003
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.