Alert archive / Louisiana / Flash Flood Warnings in 2009
Flash Flood Warning 44, NWS Lake Charles, LA
NWS Lake Charles, LA issued this flash flood warning at Dec 14, 2009, 10:19 PM CST for 6 parishes in Louisiana. It was in force for 6 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
- Dec 14, 2009, 10:19 PM CST (04:19 UTC)
- Expired
- Dec 15, 2009, 4:15 AM CST
- In force
- 6 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Iberia Parish, LA, Lafayette Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Vermilion Parish, LA
The radar
The Lake Charles radar (KLCH), 129 km from the middle of the area, began a volume at 04:21 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, 4.3 hours before the alert went out and 128 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
- 1181 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
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 Dec 14, 4:20 PM CST, 5 hours 59 minutes earlier.
Area forecast discussion, Dec 14, 4:20 PM CST, 5 hours 59 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Dec 14, 6:34 AM CST, 15 hours 45 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LAKE CHARLES LA 634 AM CST MON DEC 14 2009 LAZ027>033-041>045-051>055-TXZ180>182-201-215-216-151245- VERNON-RAPIDES-AVOYELLES-BEAUREGARD-ALLEN-EVANGELINE-ST. LANDRY- CALCASIEU-JEFFERSON DAVIS-ACADIA-LAFAYETTE-UPPER ST. MARTIN- CAMERON-VERMILION-IBERIA-ST. MARY-LOWER ST. MARTIN-TYLER-JASPER- NEWTON-HARDIN-JEFFERSON-ORANGE- 634 AM CST MON DEC 14 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL LOUISIANA...SOUTH CENTRAL LOUISIANA...SOUTHWEST LOUISIANA...WEST CENTRAL LOUISIANA AND SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT A DENSE FOG ADVISORY IS IN EFFECT THROUGH MID MORNING. WIDESPREAD FOG...REDUCING VISIBILITY TO LESS THAN ONE QUARTER OF A MILE AT TIMES...WILL CONTINUE ACROSS THE AREA THROUGH MID MORNING. THE FOG IS EXPECTED TO LIFT AFTER A FEW HOURS OF DAYTIME HEATING. DENSE FOG IS LIKELY TO RETURN TO A GOOD PART OF THE AREA AGAIN TONIGHT. COVERAGE OF SHOWERS WILL BE ON THE INCREASE TODAY IN ADVANCE OF A COLD FRONT THAT IS FORECAST TO MOVE THROUGH THE AREA ON TUESDAY. TWO DAY RAINFALL TOTALS FROM TODAY THROUGH TUESDAY AFTERNOON ARE EXPECTED TO RANGE FROM 1 TO 3 INCHES...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. THE HEAVIEST RAIN IS EXPECTED TO OCCUR LATE TONIGHT THROUGH NOON TUESDAY AS THE FRONT NEARS AND MOVES THROUGH THE AREA. A FLOOD WATCH IS IN EFFECT TONIGHT THROUGH TUESDAY MORNING GENERALLY ALONG AND SOUTH OF THE INTERSTATE 10 CORRIDOR...WHERE THE HIGHEST RAINFALL TOTALS ARE EXPECTED. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY RAINFALL FROM MONDAY NIGHT WILL CONTINUE INTO TUESDAY MORNING AS THE COLD FRONT PROGRESSES THROUGH THE AREA. THE HEAVIEST RAINFALL IS LIKELY TO OCCUR TUESDAY MORNING...ESPECIALLY OVER PARTS OF SOUTH CENTRAL LOUISIANA...WHERE THE RISK OF FLOODING WILL BE GREATEST. .SPOTTER INFORMATION STATEMENT... STORM SPOTTER ACTIVATION MAY BE REQUESTED TO MONITOR POTENTIAL FLOODING TONIGHT INTO TUESDAY. PLEASE RELAY ANY REPORTS OF STREET FLOODING OR FLASH FLOODING TO THE NATIONAL WEATHER SERVICE OR LOCAL LAW ENFORCEMENT. GMZ430-432-435-450-452-455-470-472-475-151245- SABINE LAKE-CALCASIEU LAKE-VERMILION BAY- COASTAL WATERS FROM CAMERON, LA TO HIGH ISLAND, TX OUT 20 NM- COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON, LA OUT 20 NM- COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY, LA OUT 20 NM- WATERS FROM CAMERON, LA TO HIGH ISLAND, TX EXTENDING FROM 20 NM TO 60 NM- WATERS FROM INTRACOASTAL CITY, LA TO CAMERON, LA EXTENDING FROM 20 NM TO 60 NM- WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY, LA EXTENDING FROM 20 NM TO 60 NM- 634 AM CST MON DEC 14 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NORTHWEST GULF OF MEXICO. .DAY ONE...TODAY AND TONIGHT AREAS OF FOG...DENSE AT TIMES...WILL CONTINUE TO AFFECT THE GULF WATERS TODAY AND TONIGHT. A DENSE FOG ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR THE NEARSHORE WATERS...AND COASTAL LAKES AND BAYS. AN EXTENSION IN TIME OR EXPANSION IN AREA MAY BE REQUIRED. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A COLD FRONT WILL MOVE THROUGH THE GULF WATERS ON TUESDAY...WHICH IS EXPECTED TO BRING AN END TO ANY FOG. HOWEVER...STRONG NORTH WINDS...GUSTING NEAR GALE FORCE BEYOND 20 NM...AND ROUGH SEAS WILL LIKELY REQUIRE A SMALL CRAFT ADVISORY AND/OR A GALE WARNING. .SPOTTER INFORMATION STATEMENT... MARINE INTERESTS SHOULD USE CAUTION THIS MORNING AND BE ALERT FOR ABRUPT CHANGES IN VISIBILITY. 13
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 14, 9:14 PM CST | Marine Dense Fog Advisory | LCH | 12 hr | |
| Dec 14, 9:35 PM CST | Dense Fog Advisory | LCH | 8 hr | |
| Dec 15, 1:38 AM CST | Severe Thunderstorm Warning | LCH | Cameron, Vermilion | 25 min |
| Dec 15, 2:07 AM CST | Severe Thunderstorm Warning | LCH | Iberia, Saint Martin, St. Mary | 23 min |
| Dec 15, 2:30 AM CST | Severe Thunderstorm Warning | LCH | Saint Martin, St. Mary | 35 min |
| Dec 15, 2:43 AM CST | Flash Flood Warning | LCH | Rapides, Vernon | 4 hr |
| Dec 15, 4:32 AM CST | Flash Flood Warning | LCH | Cameron, Iberia, Saint Martin, St. Mary, Vermilion | 6 hr |
| Dec 15, 9:04 AM CST | Severe Thunderstorm Warning | LCH | Beauregard, Calcasieu | 41 min |
| Dec 15, 9:29 AM CST | River Flood Warning | LCH | Calcasieu | 71 hr |
| Dec 15, 9:29 AM CST | River Flood Warning | LCH | Acadia, Jefferson Davis | 7 days |
| Dec 15, 9:29 AM CST | River Flood Warning | LCH | Lafayette, Vermilion | 32 hr |
| Dec 15, 9:29 AM CST | River Flood Warning | LCH | Vernon | 35 hr |
| Dec 15, 10:11 AM CST | Areal Flood Warning | LCH | Iberia, Lafayette, Saint Martin, St. Mary | 12 hr |
Nearby
Flash Flood Warnings in Louisiana, 2009Every flash flood warning in 2009
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.