Alert archive / Texas / Flash Flood Warnings in 1999
Flash Flood Warning 34, NWS Lake Charles, LA
NWS Lake Charles, LA issued this flash flood warning at Jun 26, 1999, 4:15 AM CDT for Jefferson County, Orange County, Texas. It was in force for 105 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 26, 1999, 4:15 AM CDT (09:15 UTC)
- Expired
- Jun 26, 1999, 6:00 AM CDT
- In force
- 105 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
Counties Jefferson County, TX, Orange County, TX
The radar
The Lake Charles radar (KLCH), 79 km from the middle of the area, began a volume at 09:19 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 9.3 hours before the alert went out and 81 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
- 336 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 833 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 141 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLCH 260917 FFWLCH TXC245-361-261115- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 415 AM CDT SAT JUN 26 1999 THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A * FLASH FLOOD WARNING FOR... JEFFERSON COUNTY IN SOUTHEASTERN TEXAS ORANGE COUNTY IN SOUTHEASTERN TEXAS * UNTIL 600 AM CDT * AT 415 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED THAT 1 TO 2 INCHES OF RAIN HAD FALLEN ACROSS EASTERN JEFFERSON AND ORANGE COUNTIES OVER THE PAST 2 HOURS. 2 TO 3 INCHES OF ADDITIONAL RAINFALL IS EXPECTED ACROSS THIS AREA THROUGH 600 AM. * FLOODING OF LOW LYING AREAS WILL BE POSSIBLE. STREET FLOODING IN THE CITIES OF PORT ARTHUR...BRIDGE CITY AND ORANGE WILL OCCUR. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED... ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW MUCH WATER IS ON ROADS. MOTORISTS SHOULD NOT DRIVE THROUGH WATER OF UNKNOWN DEPTH.
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, 1:55 AM CDT, 2 hours 20 minutes earlier.
Area forecast discussion, Jun 26, 1:55 AM CDT, 2 hours 20 minutes before
SOUTHEAST TEXAS...SOUTHWEST/CENTRAL LOUISIANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 155 AM CDT SAT JUN 26 1999 ANOTHER DIFFICULT FORECAST WITH MODELS DIFFERING SIGNIFICANTLY ON PRECIP NEXT 48 HOURS. THUNDERSTORMS HAVE ALREADY REDEVELOPED ACROSS FA / COASTAL WATERS THIS MORNING WITH HEAVY RAIN CONTINUING. WSR-88D PRECIPITATION ESTIMATES INDICATE THAT 1-2 INCHES OF WIDESPREAD RAIN HAS OCCURRED ACROSS SOUTHEAST TEXAS AND SOUTHERN LOUISIANA...WITH LOCALIZED POCKETS OF 4-5 INCHES OVER SOUTHERN ZONES. THIS VERIFIES NICELY WITH OBSERVER RAINFALL TOTALS. FLASH FLOOD GUIDANCE REMAINS LOW ACROSS FA AND WILL THEREFORE BE CONSERVATIVE AND CONTINUE FLASH FLOOD WATCH FOR TODAY. ANY HEAVY RAIN THAT DEVELOPS WILL LIKELY CAUSE FLOODING. UPPER LOW MOVING NE INTO MISSOURI ATTM WITH 500 MB SHEAR AXIS LOCATED ALONG THE TEXAS/LA BORDER. MCS MOVING SE INTO NORTH-CENTRAL TEXAS ALONG PERIPHERY OF UPPER LEVEL HIGH. HAVE DISCOUNTED NGM MODEL AND WILL DEVIATE SIG ON 1ST/2ND PERIOD POPS. WILL LEAN MORE TOWARD THE AVN/ETA SOLUTION KEEPING 500 MB SHEAR AXIS OVER THE AREA WITH PWS REMAINING HIGH. (AROUND 2.00 INCHES). ANY PRECIP THAT DEVELOPS WILL CONTAIN LOCALLY HEAVY RAINFALL. WILL TAPER POPS FROM WEST TO EAST WITH BEST PRECIP CHANCES OCCURRING OVER SOUTH-CENTRAL LOUISIANA. COULD AGAIN SEE WIDESPREAD 1-2 INCH RAINFALL TOTALS WITH LOCALLY 5 INCHES POSSIBLE. WILL LOWER RAIN CHANCES FOR SUN BUT MAY HAVE TO BE REVISED ON LATER MODEL RUNS DEPENDING ON EXACT LOCATION / STRENGTH OF TROUGH AXIS. ETA TRIES TO KEEP FEATURE STATIONARY WITH PRECIP CONTINUING ALONG COASTAL SECTIONS. WENT LOWER ON HIGH TEMPS DUE TO FORECASTED CLOUDS/PRECIP. FFA ENTIRE LCH FA TODAY...LOCALLY HEAVY RAINFALL POSSIBLE. 12 LCH 86/77/88/77 7341 LFT 85/76/88/76 8441 AEX 86/75/88/76 7221 BPT 87/77/90/77 6231
Nearby
Flash Flood Warnings in Texas, 1999Every 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; radar from the NEXRAD Level II archive.