Alert archive / Louisiana / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 55, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at May 2, 2006, 5:29 PM CDT for Saint Helena Parish, Tangipahoa Parish, Louisiana. It was in force for 61 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
- May 2, 2006, 5:29 PM CDT (22:29 UTC)
- Expired
- May 2, 2006, 6:30 PM CDT
- In force
- 61 min
- Issued by
- NWS New Orleans, LA
- Area
- Counties, with a storm outline in the text
Counties Saint Helena Parish, LA, Tangipahoa Parish, LA
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 10.5 hours before the alert went out and 262 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
- 1794 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 669 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 63 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 May 2, 3:53 PM CDT, 1 hour 36 minutes earlier.
Area forecast discussion, May 2, 3:53 PM CDT, 1 hour 36 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NEW ORLEANS LA 353 PM CDT TUE MAY 2 2006 .DISCUSSION... LOCAL RADAR CONTINUE TO SHOW SCATTERED SHOWERS AND A FEW STRONG THUNDERSTORMS MAINLY OVER THE RIVER PARISHES OR BETWEEN BTR AND MSY. UPPER AIR ANALYSIS SHOWED A RIPPLE/SHORT WAVE OVER EAST TEXAS AND WEST LOUISIANA. ACCORDING TO INITIAL 12Z PW VALUES...HIGHEST VALUES RESIDED OVER SOUTHWEST HALF OF FORECAST AREA...MUCH DIFFERENT FROM YESTERDAYS RUNS. ANTICYCLONIC CIRCULATION OVER SOUTHEAST CONUS AND EAST GULF WILL KEEP A LESS MOIST AIR MASS OVER THE EAST HALF OF FORECAST AREA TONIGHT THROUGH THURSDAY. WEAK EMBEDDED DISTURBANCES WILL SWEEP WEST JUST NORTH OF THE AREA THROUGH FRIDAY WITH THE STRONGEST OVER THE FORECAST AREA SATURDAY. A FRONTAL PASSAGE SEEMS UNLIKELY AS FLOW REMAINS WESTERLY AT 5H THROUGH THE WEEKEND. GFS CALLS FOR A PASSAGE SUNDAY NIGHT...BUT OUR OFFICE DO NOT AGREE A CLEAN PASSAGE IS POSSIBLE MONDAY. && .PRELIMINARY POINT TEMPS/POPS... MCB 64 85 65 86 / 20 20 10 20 BTR 65 86 66 87 / 20 20 10 20 MSY 68 86 69 87 / 30 20 10 20 GPT 67 82 67 83 / 20 10 10 20 && .LIX WATCHES/WARNINGS/ADVISORIES... LA...NONE. GM...NONE. MS...NONE. GM...NONE. &&
Hazardous weather outlook, May 2, 11:38 AM CDT, 5 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 1138 AM CDT TUE MAY 2 2006 LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-031200- POINTE COUPEE-WEST FELICIANA-EAST FELICIANA-ST. HELENA-TANGIPAHOA- WASHINGTON-ST. TAMMANY-IBERVILLE-WEST BATON ROUGE- EAST BATON ROUGE-ASCENSION-LIVINGSTON-ASSUMPTION-ST. JAMES- ST. JOHN THE BAPTIST-UPPER LAFOURCHE-ST. CHARLES-UPPER JEFFERSON- ORLEANS-UPPER PLAQUEMINES-UPPER ST. BERNARD-UPPER TERREBONNE- LOWER TERREBONNE-LOWER LAFOURCHE-LOWER JEFFERSON- LOWER PLAQUEMINES-LOWER ST. BERNARD-WILKINSON-AMITE-PIKE-WALTHALL- PEARL RIVER-HANCOCK-HARRISON-JACKSON- 1138 AM CDT TUE MAY 2 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI. .DAY ONE...THIS AFTERNOON AND TONIGHT PATCHY FOG IS EXPECTED TO DEVELOP AFTER MIDNIGHT ACROSS SOUTH MISSISSIPPI AND SOUTHEAST LOUISIANA. OTHERWISE...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY PATCHY DENSE FOG IS AGAIN EXPECTED WEDNESDAY MORNING AND THURSDAY MORNING MAINLY ACROSS PARTS OF SOUTH MISSISSIPPI AND SOUTHEAST LOUISIANA. SCATTERED THUNDERSTORMS ARE POSSIBLE FRIDAY THROUGH SUNDAY. SEVERE THUNDERSTORMS THOUGH ARE NOT EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND EMERGENCY MANAGEMENT PERSONNEL IN SUPPORT OF SEVERE WEATHER OPERATIONS IS NOT REQUESTED AT THIS TIME.
In the hours before
Local storm report, May 2, 4:06 PM CDT, 1 hour 23 minutes before
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</html>Local storm report, May 2, 4:37 PM CDT, 52 minutes before
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<main class="wrap">
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 3:36 PM CDT | Severe Thunderstorm Warning | LIX | Saint James | 24 min |
| May 2, 3:43 PM CDT | Severe Thunderstorm Warning | LIX | Livingston | 17 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2006Every severe thunderstorm warning in 2006
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.