Flash Flood Warning 4, NWS New Orleans, LA

Issued

May 13, 1990, 10:07 AM CDT (15:07 UTC)

Expired

May 13, 1990, 12:15 PM CDT

In force

2 hr

Issued by

NWS New Orleans, LA

Area

Whole counties

Counties Orleans Parish, LA, Saint Bernard Parish, LA

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

000 
TTAA00 KNEW 131509
FFWNEW
LAC051-071-087-131715-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1007 AM CDT SUN MAY 13 1990
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1215 PM CDT
FOR RESIDENTS IN THE FOLLOWING PARISHES
 
IN SOUTHEAST LOUISIANA
 
   ...NORTHERN JEFFERSON PARISH...ORLEANS PARISH
   ...NORTHERN ST.BERNARD PARISH
 
AT 10 AM SLIDELL RADAR INDICATED VERY HEAVY RAINS CONTINUED TO FALL
ACROSS NORTHERN JEFFERSON...ORLEANS...AND NORTHERN ST. BERNARD
PARISHES. THE THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR BUT
THE AREA SHOWED ONLY A VERY SLOW SOUTH MOVEMENT. EXTENSIVE STREET
 
FLOODING HAS BEEN REPORTED NORTH OF INTERSTATE 10 IN THE METAIRIE
AREA.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
TH;E ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

In the hours before

LAZ008>010-012>014-MSZ010>014-ALZ016-131035-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW ORLEANS LA
445 AM CDT SUN MAY 13 1990

A LINE OF SHOWERS AND THUNDERSTORMS EXTENDED FROM THE COAST SOUTH
OF NEW IBERIA LOUISIANA TO JUST NORTH OF LAKE PONTCHARTRAIN AND
SLIDELL...AND NORTHEAST INTO SOUTHWEST ALABAMA NORTH OF MOBILE. THE
STRONGEST THUNDERSTORMS IN THE LINE WERE IN THE EASTERN SECTION OF THE
LINE. HOWEVER...THIS LINE OF THUNDERSTORMS WILL POSSIBLY BRING STRONG
GUSTY WINDS...FREQUENTLY LIGHTNING AND HIGHER WINDS AND WAVES ACROSS
LAKES MAUREPAS AND LAKE PONTCHARTRAIN IN THE NEXT HOUR. THUNDERSTORMS
IN THE LINE WERE MOVING EAST ABOUT 40 MILES AN HOUR.

THUNDERSTOJRMS AND PATCHES OF LIGHT RAIN WERE OCCURING ALONG BOTH SIDES
OF THE LINE.

LAZ008>010-012>014-MSZ010>014-ALZ016-131135-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NEW ORLEANS LA
545 AM CDT SUN MAY 13 1990

A LINE OF SHOWERS AND THUNDERSTORMS EXTENDED FROM NEAR MORGAN CITY
NORTHEAST TO JUST NORTH OF LAKE PONTCHARTRAIN AND SLIDELL OVER
SOUTHEAST LOUISIANA. THE LINE EXTENDED EAST ACROSS COASTAL MISSISSIPPI
INTO SOUTHWEST ALABAMA NEAR MOBILE. THIS LINE OF THUNDERSTORMS WILL
BRING STRONG GUSTY WINDS...FREQUENT LIGHTNING...AND HIGHER WINDS AND
WINDS OVER LAKES MAUREPAS AND PONTCHARTRAIN AS IT DRIFTS SLOWLY
SOUTHEAST IN THE NEXT HOUR. THUNDERSTORMS IN THE LINE WERE MOVING
EAST ABOUT 40 MILES AN HOUR.

MOST OF THE PRECIPITATION WAS OCCURRING ABOUT 10 OR 15 MILES ALONG
EITHER SIDE OF THE LINE.

Flash Flood Warnings in Louisiana, 1990Every flash flood warning in 1990

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.