Alert archive / Mississippi / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 145, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Nov 29, 2010, 11:43 PM CST for Wilkinson County, Mississippi. It was in force for 47 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 29, 2010, 11:43 PM CST (05:43 UTC)
- Expired
- Nov 30, 2010, 12:30 AM CST
- In force
- 47 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
County Wilkinson County, MS
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 29, 8:49 PM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 5.7 hours before the alert went out and 174 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
- 946 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 480 m above ground
- 0-6 km bulk shear
- 79 kt
- 0-1 km storm-relative helicity
- 406 m²/s²
- 0-3 km storm-relative helicity
- 492 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 13.9
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 29, 3:43 PM CST, 8 hours earlier.
Area forecast discussion, Nov 29, 3:43 PM CST, 8 hours before
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</html>Hazardous weather outlook, Nov 29, 9:08 PM CST, 2 hours 35 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 908 PM CST MON NOV 29 2010 GMZ530-532-534-536-538-550-552-555-557-570-572-575-577-LAZ034>040- 046>050-056>070-MSZ068>071-077-080>082-010315- LAKE PONTCHARTRAIN AND LAKE MAUREPAS-MISSISSIPPI SOUND- LAKE BORGNE-CHANDELEUR SOUND-BRETON SOUND- COASTAL WATERS FROM THE 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 THE 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- 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- 908 PM CST MON NOV 29 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF COASTAL WATERS OF SOUTHEAST LOUISIANA AND SOUTH MISSISSIPPI...SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI. .DAY ONE...TONIGHT SEVERE WEATHER... TORNADO WATCH NUMBER 755 HAS BEEN ISSUED FOR PORTIONS OF SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI THAT ARE GENERALLY ALONG AND NORTH OF A LINE FROM PIERRE PART TO KILLIAN TO SLIDELL...EXCLUDING THE MISSISSIPPI GULF COAST. SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP WELL AHEAD OF AN APPROACHING COLD FRONT AND A FEW OF THESE STORMS MAY BECOME STRONG OR SEVERE. THE MAIN THREAT FROM THESE THUNDERSTORMS WILL BE DAMAGING WIND AND ISOLATED TORNADOES. AS THE COLD FRONT MOVES THROUGH THE REGION LATER TONIGHT...A POTENT SQUALL LINE WILL ACCOMPANY IT. A FEW OF THE THUNDERSTORMS ALONG THE SQUALL LINE MAY BECOME SEVERE. THE MAIN THREATS FROM ANY SEVERE THUNDERSTORMS EMBEDDED WITHIN THE SQUALL LINE WILL BE DAMAGING WINDS AND ISOLATED TORNADOES. ADDITIONAL SEVERE THUNDERSTORM WATCHES OR TORNADO WATCHES MAY BE ISSUED LATER TONIGHT. MARINE... SMALL CRAFT ADVISORIES ARE IN EFFECT FOR ALL COASTAL WATERS DUE TO STRONG WINDS AND ROUGH SEAS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SEVERE WEATHER... THE THREAT OF SEVERE WEATHER WILL CONTINUE UNTIL A COLD FRONT PASSES THROUGH THE REGION EARLY TUESDAY MORNING. MARINE... NORTHWEST WINDS WILL INCREASE RAPIDLY FOLLOWING THE COLD FRONTAL PASSAGE. SUSTAINED WINDS OF 30 KNOTS OR HIGHER ARE EXPECTED OVER THE OPEN WATERS OF THE GULF OF MEXICO AND A GALE WATCH REMAINS IN EFFECT FOR THOSE AREAS THROUGH TUESDAY EVENING. WITHIN THE NEAR SHORE SOUNDS AND LAKE BORGNE...WINDS WILL BE A BIT WEAKER...AND A SMALL CRAFT ADVISORY WILL REMAIN IN EFFECT. .SPOTTER INFORMATION STATEMENT... EMERGENCY MANAGEMENT...STORM SPOTTERS AND OTHER PUBLIC SAFETY OFFICIALS SHOULD RELAY ANY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN SLIDELL. WE CAN BE REACHED BY PHONE AT 9 8 5 6 4 9 0 3 5 7 OR 5 0 4 5 2 2 7 3 3 0. TO SPEAK WITH A FORECASTER...USE EXTENSION 4. 95/DM
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 30, 12:29 AM CST | Tornado Warning | LIX | Pointe Coupee, West Feliciana | 46 min |
| Nov 30, 1:33 AM CST | Severe Thunderstorm Warning | LIX | East Feliciana, Pointe Coupee, West Feliciana | 42 min |
| Nov 30, 2:15 AM CST | Severe Thunderstorm Warning | LIX | East Feliciana, West Feliciana | 45 min |
| Nov 30, 2:32 AM CST | Tornado Warning | LIX | East Feliciana | 28 min |
| Nov 30, 5:36 AM CST | Tornado Warning | LIX | Saint Tammany, Tangipahoa, Washington | 24 min |
| Nov 30, 5:41 AM CST | Tornado Warning | LIX | Washington | 34 min |
| Nov 30, 6:06 AM CST | Tornado Warning | LIX | Saint Tammany, Tangipahoa, Washington | 24 min |
| Nov 30, 6:12 AM CST | Special Marine Warning | LIX | 91 min | |
| Nov 30, 6:19 AM CST | Tornado Warning | LIX | Washington | 26 min |
| Nov 30, 6:30 AM CST | Tornado Warning | LIX | Saint Tammany | 30 min |
| Nov 30, 6:39 AM CST | Severe Thunderstorm Warning | LIX | Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles | 66 min |
| Nov 30, 6:42 AM CST | Severe Thunderstorm Warning | LIX | Washington | 29 min |
| Nov 30, 7:00 AM CST | Special Marine Warning | LIX | 2 hr | |
| Nov 30, 7:14 AM CST | Special Marine Warning | LIX | 101 min | |
| Nov 30, 8:12 AM CST | Special Marine Warning | LIX | 33 min | |
| Nov 30, 8:14 AM CST | Special Marine Warning | LIX | 2 hr | |
| Nov 30, 8:30 AM CST | Special Marine Warning | LIX | 30 min | |
| Nov 30, 8:51 AM CST | Special Marine Warning | LIX | 54 min | |
| Nov 30, 8:54 AM CST | Special Marine Warning | LIX | 2 hr | |
| Nov 30, 9:03 AM CST | Severe Thunderstorm Warning | LIX | Plaquemines | 57 min |
| Nov 30, 10:05 AM CST | Special Marine Warning | LIX | 115 min | |
| Nov 30, 10:10 AM CST | Special Marine Warning | LIX | 103 min | |
| Nov 30, 11:25 AM CST | Gale Warning | LIX | 4 hr | |
| Nov 30, 11:25 AM CST | Small Craft Advisory | LIX | 23 hr | |
| Nov 30, 11:51 AM CST | Special Marine Warning | LIX | 114 min | |
| Nov 30, 12:01 AM CST | Tornado Warning | LIX | Wilkinson | 44 min |
| Nov 30, 3:04 AM CST | Tornado Warning | LIX | Amite, Pike | 41 min |
| Nov 30, 3:38 AM CST | Tornado Warning | LIX | Pike, Walthall | 17 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2010Every severe thunderstorm warning in 2010
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.