Alert archive / Louisiana / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 28, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Feb 24, 2013, 6:30 PM CST for Jefferson Parish, Plaquemines Parish, Saint Bernard Parish, Louisiana. It was in force for 45 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
- Feb 24, 2013, 6:30 PM CST (00:30 UTC)
- Expired
- Feb 24, 2013, 7:15 PM CST
- In force
- 45 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
Counties Jefferson Parish, LA, Plaquemines Parish, LA, Saint Bernard Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 0.5 hours before the alert went out and 65 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
- 902 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
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 Feb 24, 5:04 PM CST, 1 hour 26 minutes earlier.
Area forecast discussion, Feb 24, 5:04 PM CST, 1 hour 26 minutes before
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</html>Hazardous weather outlook, Feb 24, 6:20 PM CST, 10 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 620 PM CST SUN FEB 24 2013 GMZ530-532-534-536-538-550-552-555-557-570-572-575-577-LAZ034>037- 039-040-046>050-056>072-MSZ068>071-077-080>082-251230- LAKE PONTCHARTRAIN AND LAKE MAUREPAS-MISSISSIPPI SOUND- LAKE BORGNE-CHANDELEUR SOUND-BRETON SOUND- COASTAL WATERS FROM PORT FOURCHON TO LOWER ATCHAFALAYA RIVER OUT 20 NM- COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON OUT 20 NM- COASTAL WATERS FROM BOOTHVILLE LA TO THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER OUT 20 NM- COASTAL WATERS FROM PASCAGOULA MS TO STAKE ISLAND LA OUT 20 NM- COASTAL WATERS FROM PORT FOURCHON TO LOWER ATCHAFALAYA RIVER FROM 20 TO 60 NM- COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO PORT FOURCHON FROM 20 TO 60 NM- COASTAL WATERS FROM STAKE ISLAND LA TO THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER FROM 20 TO 60 NM- COASTAL WATERS FROM PASCAGOULA MS TO STAKE ISLAND LA FROM 20 TO 60 NM-POINTE COUPEE-WEST FELICIANA-EAST FELICIANA-ST. HELENA- 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-NORTHERN TANGIPAHOA- SOUTHERN TANGIPAHOA-WILKINSON-AMITE-PIKE-WALTHALL-PEARL RIVER- HANCOCK-HARRISON-JACKSON- 620 PM CST SUN FEB 24 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST LOUISIANA...SOUTH MISSISSIPPI AND THE ADJACENT COASTAL WATERS. .DAY ONE...TONIGHT SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP NEAR THE COAST AND SPREAD INLAND THIS EVENING AND OVERNIGHT. A FEW OF THE STORMS WILL BECOME STRONG TO SEVERE AND PRODUCE HAIL UP TO QUARTER SIZE. AFTER 4 AM...A WARM FRONT WILL START TO MOVE INLAND ALONG THE SOUTHEAST LOUISIANA COAST. ANY STORMS THAT DEVELOP NEAR OR SOUTH OF THIS FRONT WILL HAVE THE POTENTIAL TO PRODUCE STRONG...POSSIBLY DAMAGING WINDS...AND ISOLATED TORNADOES OR WATERSPOUTS. A FLASH FLOOD WATCH IS IN EFFECT FOR PORTIONS OF EAST CENTRAL AND SOUTHEAST LOUISIANA...AND SOUTH MISSISSIPPI LATER TONIGHT THROUGH MONDAY NIGHT. FLASH FLOODING WILL BE POSSIBLE WHERE REPEAT HEAVY RAIN OCCURS...MAINLY LATE TONIGHT. MULTIPLE RIVER FLOOD WARNINGS REMAIN IN EFFECT ACROSS THE AREA. REFER TO THE LATEST RIVER FLOOD WARNINGS AND STATEMENTS FOR DETAILS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE OUTLOOK AREA ON MONDAY AS THE FRONT MOVES THROUGH THE AREA. ALL MODES OF SEVERE WEATHER ARE POSSIBLE MONDAY AND MONDAY EVENING INCLUDING DAMAGING WINDS...LARGE HAIL...AND ISOLATED TORNADOES. IN ADDITION TO THE SEVERE WEATHER THREAT...HEAVY RAINFALL IS LIKELY WITH ANOTHER 2 TO 4 INCHES EXPECTED ACROSS MUCH OF THE AREA WITH LOCALLY HIGHER AMOUNTS POSSIBLE. PLEASE REFER TO THE LATEST RIVER FLOOD STATEMENTS FOR ONGOING FLOODING AT SEVERAL LOCATIONS THROUGH THE OUTLOOK PERIOD. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND EMERGENCY MANAGEMENT PERSONNEL MAY BE NEEDED LATE TONIGHT THROUGH MONDAY EVENING. 22/TD
In the hours before
Special weather statement, Feb 24, 5:01 PM CST, 1 hour 29 minutes before
LAZ059-065>067-250000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 501 PM CST SUN FEB 24 2013 ...STRONG THUNDERSTORM MOVING NORTHEAST AFFECTING UPPER TERREBONNE PARISH...UPPER LAFOURCHE PARISH...LOWER LAFOURCHE PARISH...LOWER TERREBONNE PARISH... AT 500 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM 20 MILES SOUTH OF HOUMA...OR ABOUT 9 MILES SOUTHWEST OF DULAC...MOVING NORTHEAST AT 30 MPH. THE STRONG THUNDERSTORM WILL AFFECT AREAS IN AND AROUND...COCODRIE... LUMCON CENTER BUOY...DULAC...CHAUVIN...MONTEGUT...HOUMA...RACELAND... MATHEWS...LOCKPORT AND LAROSE THE PRIMARY THREATS FROM THIS STORM ARE FREQUENT LIGHTNING AND PEA TO DIME SIZE HAIL. SEEK SHELTER IN A SAFE HOME OR BUILDING UNTIL THIS STORM HAS PASSED. BE PREPARED TO TAKE QUICK ACTION IF A WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE LOCAL MEDIA OUTLETS FOR FURTHER DETAILS OR UPDATES FROM THE NATIONAL WEATHER SERVICE.
Special weather statement, Feb 24, 6:00 PM CST, 30 minutes before
LAZ058>060-065-250045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 600 PM CST SUN FEB 24 2013 ...CLUSTER OF STRONG THUNDERSTORMS MOVING NORTHEAST AFFECTING UPPER TERREBONNE PARISH...ST. JOHN THE BAPTIST PARISH...UPPER LAFOURCHE PARISH...ST. CHARLES PARISH... AT 556 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER OF STRONG THUNDERSTORMS NEAR HOUMA...OR ABOUT 6 MILES EAST OF BAYOU CANE...MOVING NORTHEAST AT 25 MPH. THE CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT AREAS IN AND AROUND...LOCKPORT...MATHEWS...RACELAND...DES ALLEMANDS...NEW SARPY... HAHNVILLE...EDGARD...DESTREHAN AND BOUTTE THE PRIMARY THREATS FROM THESE STORMS ARE FREQUENT LIGHTNING AND SUB SEVERE HAIL UP TO NICKEL SIZE. SEEK SHELTER IN A SAFE HOME OR BUILDING UNTIL THESE STORMS HAVE PASSED. BE PREPARED TO TAKE QUICK ACTION IF A WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE LOCAL MEDIA OUTLETS FOR FURTHER DETAILS OR UPDATES FROM THE NATIONAL WEATHER SERVICE.
Special weather statement, Feb 24, 6:22 PM CST, 8 minutes before
MSZ081-082-250130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 622 PM CST SUN FEB 24 2013 ...STRONG THUNDERSTORM MOVING NORTHEAST AFFECTING JACKSON COUNTY... HARRISON COUNTY... AT 619 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM 11 MILES SOUTHEAST OF BAY ST. LOUIS...OR ABOUT 10 MILES SOUTH OF PASS CHRISTIAN...MOVING NORTHEAST AT 25 MPH. THE STRONG THUNDERSTORM WILL AFFECT AREAS IN AND AROUND...PASS CHRISTIAN...LONG BEACH...GULFPORT...GULFPORT AIRPORT...LYMAN AND BILOXI THE PRIMARY THREATS FROM THIS STORM ARE FREQUENT LIGHTNING AND SUB SEVERE HAIL UP TO NICKEL SIZE. SEEK SHELTER IN A SAFE HOME OR BUILDING UNTIL THIS STORM HAS PASSED. BE PREPARED TO TAKE QUICK ACTION IF A WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE LOCAL MEDIA OUTLETS FOR FURTHER DETAILS OR UPDATES FROM THE NATIONAL WEATHER SERVICE.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 6:14 PM CST | Severe Thunderstorm Warning | LIX | Lafourche, Saint Charles, Saint John the Baptist | 31 min |
| Feb 24, 6:41 PM CST | Severe Thunderstorm Warning | LIX | Jefferson, Saint Charles | 49 min |
| Feb 24, 6:45 PM CST | Severe Thunderstorm Warning | LIX | Assumption, Lafourche, Terrebonne | 45 min |
| Feb 24, 6:57 PM CST | Special Marine Warning | LIX | 63 min | |
| Feb 24, 7:02 PM CST | Severe Thunderstorm Warning | LIX | Saint John the Baptist | 28 min |
| Feb 24, 7:10 PM CST | Special Marine Warning | LIX | 50 min | |
| Feb 24, 7:23 PM CST | Severe Thunderstorm Warning | LIX | Lafourche, Terrebonne | 52 min |
| Feb 24, 7:41 PM CST | Severe Thunderstorm Warning | LIX | Assumption, Lafourche, Saint James, Terrebonne | 49 min |
| Feb 24, 7:56 PM CST | Special Marine Warning | LIX | 64 min | |
| Feb 24, 8:08 PM CST | Severe Thunderstorm Warning | LIX | Lafourche, Saint Charles, Saint John the Baptist | 52 min |
| Feb 24, 8:52 PM CST | Severe Thunderstorm Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles | 38 min |
| Feb 24, 8:58 PM CST | Special Marine Warning | LIX | 62 min | |
| Feb 24, 9:26 PM CST | Severe Thunderstorm Warning | LIX | Jefferson, Orleans, Plaquemines, Saint Bernard | 34 min |
| Feb 24, 9:36 PM CST | Special Marine Warning | LIX | 54 min | |
| Feb 24, 9:45 PM CST | Special Marine Warning | LIX | 45 min | |
| Feb 24, 9:56 PM CST | Severe Thunderstorm Warning | LIX | Saint Bernard | 34 min |
| Feb 24, 10:07 PM CST | Severe Thunderstorm Warning | LIX | Saint Tammany | 38 min |
| Feb 24, 10:14 PM CST | River Flood Warning | LIX | Tangipahoa | 3 days |
| Feb 24, 10:21 PM CST | Areal Flood Advisory | LIX | Ascension, East Baton Rouge, Iberville, West Baton Rouge | 114 min |
| Feb 24, 11:04 PM CST | Special Marine Warning | LIX | 56 min | |
| Feb 24, 11:17 PM CST | Severe Thunderstorm Warning | LIX | Ascension, Livingston | 28 min |
| Feb 24, 11:28 PM CST | Severe Thunderstorm Warning | LIX | Ascension, Assumption, Iberville, Saint James | 32 min |
| Feb 24, 11:44 PM CST | Severe Thunderstorm Warning | LIX | Livingston, Tangipahoa | 46 min |
| Feb 24, 11:57 PM CST | Severe Thunderstorm Warning | LIX | Ascension, Saint James, Saint John the Baptist | 48 min |
| Feb 25, 12:02 AM CST | Special Marine Warning | LIX | 28 min | |
| Feb 25, 12:04 AM CST | Special Marine Warning | LIX | 41 min | |
| Feb 25, 12:29 AM CST | Severe Thunderstorm Warning | LIX | Saint Tammany, Tangipahoa | 46 min |
| Feb 25, 12:49 AM CST | Special Marine Warning | LIX | 26 min | |
| Feb 25, 3:06 AM CST | Areal Flood Advisory | LIX | Jefferson, Orleans | 114 min |
| Feb 25, 3:11 AM CST | Severe Thunderstorm Warning | LIX | Ascension, Livingston, Saint James, Saint John the Baptist | 34 min |
| Feb 25, 3:12 AM CST | Gale Warning | LIX | 30 hr | |
| Feb 25, 3:12 AM CST | Small Craft Advisory | LIX | 21 hr | |
| Feb 25, 3:42 AM CST | Severe Thunderstorm Warning | LIX | Livingston, Saint John the Baptist, Saint Tammany, Tangipahoa | 33 min |
| Feb 25, 3:55 AM CST | River Flood Warning | LIX | Saint Tammany | 3 days |
| Feb 25, 3:55 AM CST | Special Marine Warning | LIX | 50 min | |
| Feb 25, 4:15 AM CST | Flash Flood Warning | LIX | Saint Tammany | 3 hr |
| Feb 25, 4:32 AM CST | Areal Flood Advisory | LIX | Saint Tammany, Tangipahoa | 58 min |
| Feb 25, 4:43 AM CST | Wind Advisory | LIX | Saint Bernard, Saint John the Baptist | 34 hr |
| Feb 25, 4:48 AM CST | Special Marine Warning | LIX | 87 min | |
| Feb 25, 5:01 AM CST | River Flood Warning | LIX | Saint Tammany | 52 hr |
| Feb 25, 5:02 AM CST | Special Marine Warning | LIX | 28 min | |
| Feb 25, 6:22 AM CST | River Flood Warning | LIX | Saint Tammany | 3 days |
| Feb 25, 6:23 AM CST | River Flood Warning | LIX | Saint Tammany | 33 hr |
| Feb 25, 2:24 PM CST | Severe Thunderstorm Warning | LIX | Ascension, East Baton Rouge, Iberville, Livingston, Tangipahoa | 51 min |
| Feb 25, 2:26 PM CST | Severe Thunderstorm Warning | LIX | Saint Tammany, Washington | 49 min |
| Feb 25, 3:07 PM CST | Special Marine Warning | LIX | 23 min | |
| Feb 25, 3:07 PM CST | Severe Thunderstorm Warning | LIX | West Feliciana | 38 min |
| Feb 25, 3:26 PM CST | Special Marine Warning | LIX | 19 min | |
| Feb 25, 3:29 PM CST | Severe Thunderstorm Warning | LIX | Lafourche, Terrebonne | 46 min |
| Feb 25, 5:00 PM CST | Special Marine Warning | LIX | 45 min | |
| Feb 25, 5:29 PM CST | Special Marine Warning | LIX | 91 min | |
| Feb 25, 5:31 PM CST | Special Marine Warning | LIX | 44 min | |
| Feb 25, 5:40 PM CST | Tornado Warning | LIX | Jefferson, Plaquemines | 35 min |
| Feb 25, 12:22 AM CST | Severe Thunderstorm Warning | LIX | Jackson | 23 min |
| Feb 25, 2:40 AM CST | Severe Thunderstorm Warning | LIX | Harrison, Jackson | 35 min |
| Feb 25, 3:17 AM CST | Severe Thunderstorm Warning | LIX | Harrison, Jackson | 43 min |
| Feb 25, 3:28 AM CST | Severe Thunderstorm Warning | LIX | Jackson | 62 min |
| Feb 25, 8:21 AM CST | River Flood Warning | LIX | Harrison | 50 hr |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2013Every severe thunderstorm warning in 2013
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.