Alert archive / Louisiana / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 190, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Nov 24, 2008, 2:33 PM CST for Washington Parish, Louisiana; Pearl River County, Mississippi. It was in force for 42 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
- Nov 24, 2008, 2:33 PM CST (20:33 UTC)
- Expired
- Nov 24, 2008, 3:15 PM CST
- In force
- 42 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
Counties Washington Parish, LA, Pearl River County, MS
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 8.6 hours before the alert went out and 63 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1045 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 205 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Nov 24, 6:04 AM CST, 8 hours 29 minutes earlier.
Area forecast discussion, Nov 24, 6:04 AM CST, 8 hours 29 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NEW ORLEANS LA 604 AM CST MON NOV 24 2008 .AVIATION... MVFR CONDITIONS ARE EXPECTED TO DEVELOP AS SHOWERS MOVE INTO THE AREA TODAY AHEAD OF THE COLD FRONTAL PASSAGE THIS AFTERNOON/EVENING. THE BEST CHANCES FOR THUNDERSTORMS WILL BE DURING THE AFTERNOON HOURS. CLEARING IS EXPECTED TONIGHT WITH LIGHT WINDS AT MCB...BTR...GPT. WINDS MAY STAY UP AROUND 10 KNOTS OFF THE LAKE AT MSY. 25 && .PREV DISCUSSION... /ISSUED 409 AM CST MON NOV 24 2008/ SHORT TERM... STRONG DYNAMIC COLD FRONT WILL MOVE THROUGH THE REGION TODAY. STRONG TS SHOULD ERRUPT ACROSS ARKANSAS INTO KENTUCKY WHILE A DISTINCT LINE OF SH/TS WILL BEGIN TO DEVELOP FROM THE GULF INTO THE UPPER TX COAST LEADING INTO THE AREA OF SEVERE TS OVER ARK. THE WEAKER LINE OF SH/TS SHOULD EVOLVE THROUGH THE MORNING AS SOME STRONG MID AND UPPER SUPPORT BEGINS TO SWING DOWN INTO THE AREA BY LATE MORNING. THERE WILL STILL BE THE POSSIBILITY OF AN ISOLATED STRONG OR SEVERE TS FOR MOST AREAS BUT THE BEST AREAS FOR A SEVERE TS TO OCCUR WILL BE FOUND IS FROM BATON ROUGE TO GULFPORT. THIS IS WHERE AN ABUNDANCE OF DEEP MOISTURE AND HEATING WILL BE ADVECTED INLAND...NOT FROM SUNLIGHT BUT FROM THE GULF. THIS SHOULD HELP THINGS GET GOIND OVER THE SOUTHERN HALF OF THE AREA THIS MORNING. ELSEWHERE THERE WILL STILL BE ROOM FOR AN ISOLATED STRONG OR SEVERE BUT AREAS NORTH OF THE LINE WILL NEE SOME HEATING TO GET A PRIMED ATMOS. AREAS WELL NORTH OF OURS WILL HAVE PLENTY OF DYNAMIC LIFT AND WILL NEED LITTLE HEATING TO GET THINGS STARTED. WILL MENTION THE AREA OF BEST CHANCE OF SEEING ANY STRONG OR SEVERE TS BUT WILL SIMPLY GO WITH SLIGTH RISK FOR ALL LOCATIONS. STRONG CAA AND DAA WILL BE MET WITH A QUICK RETURN FLOW WITHIN ABOUT 36 HOURS SENDING US THROUGH A ROLLER COASTER RIDE OF TEMPS. THE NEXT FRONT WILL MOVE IN BY THE END OF THE WEEK. A SFC LOW IS EXPECTED TO DEVELOP ALONG THE SOUTHERN END CAUSING THE SYSTEM TO SLOW SOMEWHAT BEFORE KICKING OUT SAT MORNING. LONG TERM... SOME FAST MOVING CLIPPER TYPE SYSTEMS LOOK TO MOVE THROUGH THE CENTRAL PART OF THE COUNTRY BY THE START OF NEXT WEEK WITH NO REAL AFFECT ON OUR WEATHER UNTIL MID WEEK. MARINE... GENERALLY MODERATE ONSHORE FLOW WILL CONTINUE UNTIL FRONTAL PASSAGE MONDAY EVENING. A SMALL CRAFT ADVISORY IS LIKELY TO BE REQUIRED IN THE GULF COASTAL WATERS AS WINDS RISE TO 20 TO 25 KNOTS...AND MAY BE REQUIRED IN LAKES PONTCHARTRAIN AND MAUREPAS AS WINDS APPROACH 20 KNOTS. WINDS SHOULD SUBSIDE AND BEGIN TO BECOME ONSHORE AGAIN MIDWEEK...WITH IN INCREASE IN WINDS ON FRIDAY AHEAD OF THE NEXT FRONTAL SYSTEM. 25 && .PRELIMINARY POINT TEMPS/POPS... MCB 69 41 67 34 / 80 10 0 0 BTR 72 43 68 37 / 80 10 0 0 MSY 73 50 66 43 / 80 30 0 0 GPT 71 44 68 35 / 80 40 0 0 && .LIX WATCHES/WARNINGS/ADVISORIES... LA...NONE. GM...NONE. MS...NONE. GM...NONE. &&
Hazardous weather outlook, Nov 24, 1:45 PM CST, 48 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>In the hours before
Local storm report, Nov 24, 1:50 PM CST, 43 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>Local storm report, Nov 24, 2:22 PM CST, 11 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>The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 24, 9:57 AM CST | Small Craft Advisory | LIX | 24 hr | |
| Nov 24, 1:42 PM CST | Severe Thunderstorm Warning | LIX | Tangipahoa, Washington | 48 min |
| Nov 24, 4:14 PM CST | Special Marine Warning | LIX | 61 min | |
| Nov 24, 5:14 PM CST | Special Marine Warning | LIX | 31 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2008Severe Thunderstorm Warnings in Mississippi, 2008Every severe thunderstorm warning in 2008
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.