Alert archive / Louisiana / Flash Flood Warnings in 1999

Flash Flood Warning 39, NWS Lake Charles, LA

June 26, 1999Saint Martin Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Jun 26, 1999, 12:44 PM CDT for Saint Martin Parish, Louisiana. 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 counties it named.

The facts

Issued: Jun 26, 1999, 12:44 PM CDT (17:44 UTC)
Expired: Jun 26, 1999, 3:00 PM CDT
In force: 2 hr
Issued by: NWS Lake Charles, LA
Area: Whole counties

County Saint Martin Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 5.7 hours before the alert went out and 153 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: 1622 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 772 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 88 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 
TTAA00 KLCH 261743
FFWLCH
LAC099-261940-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1244 PM CDT SAT JUN 26 1999

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  UPPER ST. MARTIN PARISH IN SOUTH CENTRAL LOUISIANA

* UNTIL 300 PM CDT

* AT 1239 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED
  THAT 1 TO 2 INCHES OF RAIN HAS FALLEN FROM WEST OF ST. MARTINVILLE
  TO HENDERSON DURING THE PAST HOUR. ONE TO 2 INCHES OF ADDITIONAL
  RAINFALL IS EXPECTED ACROSS THE AREA OVER THE NEXT HOUR. IN
  ADDITION...RUNOFF FROM THESE RAINS WILL CONTINUE TO ADD TO THE
  FLOODING UP TO AN HOUR AFTER THE HEAVY RAINFALL ENDS.

* FLOODING OF LOW LYING AREAS...DITCHES...AND BAYOUS IS EXPECTED

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS
THE ROAD TO UNKNOWN DEPTHS. THE DEPTH OF THE WATER MAY BE
TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. REMEMBER...MOST
FLOOD RELATE@D DEATHS OCCUR IN AUTOMOBILES.

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 Lake Charles, LA wrote its last area forecast discussion before this flash flood warning went out at Jun 26, 8:59 AM CDT, 3 hours 45 minutes earlier.

Area forecast discussion, Jun 26, 8:59 AM CDT, 3 hours 45 minutes before

SOUTHEAST TEXAS...SOUTHWEST/CENTRAL LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
859 AM CDT SAT JUN 26 1999

VSBL STLT IMAGERY SHOWING A BAND OF TSTMS OVR XTRM SE TX ENTERING
WRN LA ATTM...NEXT ROUND FOR HVY RAINS IN SW AND CEN LA. 88-D ALSO
SHOWING TSTMS WITH HVY RAINS OVR E ACADIANA WHERE FFW HAS BEEN
XTNDED TIL 10 AM. 12Z LCH SNDG STILL EXCESSIVELY MOIST AND UNSTABLE
WITH PW OF 2.4 INCHES...CAPE NEAR 4000...K INDEX OF 39 AND A
CONVECTIVE TEMP OF 85F...SIMILAR TO YDA. ONCE CONV TEMPS REACHED OVR
THE FEW AREAS WITHOUT CLOUDCOVER...MID-DAY...WL ADD GUSTY WINDS TO
LOCAL PRODUCTS (NOWCASTS AND TAFS) DUE TO DOWNRUSH FM HIGH CAPES.
LOOKS LIKE ETA A WINNER AGAIN ON THE MORNING RUN WITH THE SLOWER
TIMING ON THE H5 TROF. NGM MUCH TOO FAST AND OPTIMISTIC. ETA/MESOETA
BRINGS S/WV PAST LCH AND AEX BY MIDNIGHT TNITE. ANTICIPATE CLEARING
AREAS OUT FROM UNDER THE FFA WITH THE PASSAGE OF THE S/WV. SHUD BE
ABLE TO END FFA THIS EVE FOR SE TX...DAYBREAK SUN FOR S CEN LA.
SEE NO REASON TO CHANGE GOING TEMPS/POPS ON ZNS...SOME BREAKS IN
CLD COVER WILL PUT TEMPS INTO THE BALLPARK. WOULD LIKE TO ADD HVY
RAINFALL POSSIBLE SINCE AREA CONTINUES UNDER FFA AND PWS RIDICULOUSLY
HIGH.

.LCH...FFA TX ZNS (TDA ONLY)...FFA LA ZNS (INTO TNITE)...
...CAUTION ADVISED ON COASTAL...

.UPDATED PRELIMS...ETX FOR INTERIOR SE TX...
BPT 087/077 090/077 094 6231
LCH 086/077 088/077 093 6341
LFT 085/076 088/076 093 7441
ETX 087/075 090/075 093 6231
AEX 086/075 088/076 093 8221
11

In the hours before

Local storm report, Jun 26, 7:03 AM CDT, 5 hours 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
703 AM CDT SAT JUN 26 1999

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0700 AM    LOREAUVILLE               LA   FLOODING
06/26/99   IBERIA                         WATER IN SOME
                                          HOMES...REPORTED BY
                                          SHERIFFS DEPARTMENT.

0700 AM    DELCAMBRE                 LA   FLOODING
06/26/99   IBERIA                         WATER IN SOME
                                          HOMES...REPORTED BY
                                          SHERIFFS DEPARTMENT.
                                          NUMEROUS ROADS IMPASSABLE IN
                                          THE PARISH DUE TO HIGH
                                          WATER.

0700 AM    ST MARTINVILLE            LA   FLOODING
06/26/99   UPPER SAINT MARTIN             RESIDENTS REQUESTING SAND
                                          BAGS...REPORTED BY SHERIFFS
                                          DEPARTMENT.

Local storm report, Jun 26, 7:03 AM CDT, 5 hours 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
703 AM CDT SAT JUN 26 1999

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0700 AM    LOREAUVILLE               LA   FLOODING
06/26/99   IBERIA                         WATER IN SOME
                                          HOMES...REPORTED BY
                                          SHERIFFS DEPARTMENT.

0700 AM    DELCAMBRE                 LA   FLOODING
06/26/99   IBERIA                         WATER IN SOME
                                          HOMES...REPORTED BY
                                          SHERIFFS DEPARTMENT.
                                          NUMEROUS ROADS IMPASSABLE IN
                                          THE PARISH DUE TO HIGH
                                          WATER.

0700 AM    ST MARTINVILLE            LA   FLOODING
06/26/99   UPPER SAINT MARTIN             RESIDENTS REQUESTING SAND
                                          BAGS...REPORTED BY SHERIFFS
                                          DEPARTMENT.

Local storm report, Jun 26, 8:02 AM CDT, 4 hours 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
802 AM CDT SAT JUN 26 1999

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0800 AM    ST MARTINVILLE            LA   FLOODING
06/26/99   SAINT MARTIN                   SHERRIFFS REPORT HIGHWAY 96
                                          REMAINS CLOSED AT CATAHOULA
                                          ROAD DUE TO HIGH WATER.

Local storm report, Jun 26, 10:59 AM CDT, 1 hour 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1059 AM CDT SAT JUN 26 1999

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1000 AM    GLENMORA                  LA   WIND DAMAGE
06/26/99   RAPIDES                        SEVERAL LARGE TREES REPORTED
                                          DOWNED BY GUSTS ASSOCIATED
                                          WITH A THUNDERSTORM. GROUND
                                          WAS SATURATED BY PREVIOUS
                                          RAINS ACCORDING TO
                                          SHERRIFFS.

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 26, 3:08 AM CDT	Flash Flood Warning	LCH	Iberia	2 hr
Jun 26, 4:17 AM CDT	Flash Flood Warning	LCH	Saint Martin	58 min
Jun 26, 5:02 AM CDT	Flash Flood Warning	LCH	Iberia, Saint Martin	118 min
Jun 26, 6:53 AM CDT	Flash Flood Warning	LCH	Iberia, Saint Martin	57 min
Jun 26, 7:55 AM CDT	Flash Flood Warning	LCH	Saint Martin	2 hr

Nearby

Flash Flood Warnings in Louisiana, 1999 Every flash flood warning in 1999

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.