Damaging Wind in Louisiana, March 9, 2005

Name: Damaging Wind in Louisiana, March 9, 2005
Start: 2005-03-09T17:40
End: 2005-03-09T17:40
Location: Louisiana

March 9, 2005 · NWS LIX · 1 event in 1 county or zone

1 thunderstorm wind, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

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The toll

Deaths: 0
Injuries: 0
Property damage: $25,000
Crop damage: None recorded
Events: 1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Mar 9, 3:15 PM CST, 2 hours 25 minutes earlier.

Area forecast discussion, Mar 9, 3:15 PM CST, 2 hours 25 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW ORLEANS LA
315 PM CST WED MAR 9 2005

.DISCUSSION...
LATEST VISIBLE SATELLITE IMAGERY SHOWED A BAND OF CLOUDS FROM
NORTH MISSISSIPPI TAPERED TO SOUTH CENTRAL LOUISIANA AND MDT CU
FIELD OVER NORTH LOUISIANA AND SOUTHERN ARKANSAS. REGIONAL RADARS
REVEALED A LINE OF SHOWERS FROM MERIDIAN TO MORGAN CITY. SURFACE
FRONT WAS LOCATED FROM MEMPHIS TO MONROE TO LAKE CHARLES. UPPER AIR
ANALYSIS SHOWED THE SHORT WAVE FROM SOUTHERN ILLINOIS TO NORTHWEST
LOUISIANA WITH 5H TEMPS NEAR -25C. SHV RADAR REVEALED SOME CONVECTION
ACROSS NORTH CENTRAL LOUISIANA AND SOUTH CENTRAL ARKANSAS. NOT TOO
EXCITED ABOUT THE LIGHT RAIN. HOWEVER...AS THE SHORT WAVE MOVES SOUTHEAST
THE COLD AIR ALOFT SHOULD TRACK SOUTHEAST ACROSS SOUTH MISSISSIPPI. AT
THE LAST MINUTE...ADDED THUNDER THIS EVENING ACROSS SOUTH MISSISSIPPI AS
THIS AREA IS THE ONLY AREA CONVECTIVELY UNSTABLE. A QUICK SURGE OF COLD AIR
ADVECTION WILL MIX DOWN BOUNDARY LAYER WINDS AND INCREASE NORTH WIND SPEEDS
TO PROMPT THE ISSUANCE OF SMALL CRAFT ADVISORY FOR TIDAL LAKES AND COASTAL
WATERS TONIGHT AND THURSDAY. AS TYPED IN EARLIER DISCUSSION...THE MAIN
TROUGH REMAINS ACROSS THE EAST CONUS THROUGH THE WEEKEND. NORTHWEST WILL
ALLOW ANOTHER SHORT WAVE TO DIVE SOUTHEAST ACROSS THE CENTRAL GULF COAST
EARLY FRIDAY. GFS AND ETA SHOWED A VERY THIN AXIS OF CONVECTIVE INSTABILITY
IN THE LOWER AND MID LAYERS JUST AHEAD OF THE SHORT WAVE. PW VALUES BULK
UP TO AN INCH AND MID LAYER MOISTURE RH VALUES ARE NOW ABOVE 90 PERCENT
ACCORDING GFS...ETA AND NGM. HOWEVER...THE DYNAMICS OF THE SYSTEM ARE A
LITTLE TO THE NORTHEAST OF THE FORECAST AREA. WILL INSERT ISOLATED
THUNDERSTORMS FOR NOW. WILL HAVE MONITOR FOR ANY CHANGES LATE THURSDAY
NIGHT INTO FRIDAY MORNING. TROUGH OFF THE EAST COAST WILL BECOME EAST
WEST ORIENTED OVER NORTHEAST CONUS AND PLACE THE FORECAST AREA UNDER
WESTERLY FLOW BY SUNDAY. A CLOSED LOW WILL DEVELOP OVER THE ROCKIES
LATE MONDAY AND MAINTAIN A WESTERLY FLOW ACROSS THE AREA THROUGH
TUESDAY. NEXT CHANCE OF SIGNIFICANT RAIN IS EXPECTED LATE TUESDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  37  62  44  64 /  10   0  20  10
BTR  39  63  47  66 /  10   0  20  10
MSY  45  63  49  67 /  30   0  10  20
GPT  40  62  47  64 /  30   0  10  20

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...NONE.
MS...NONE.
SE LA AND MS COASTAL WATERS...SCA FROM PASCAGOULA TO ATCHAFALAYA INCLUDING
TIDAL LAKES.

&&

18

Hazardous weather outlook, Mar 9, 3:15 PM CST, 2 hours 25 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NEW ORLEANS LA
315 PM CST WED MAR 9 2005

LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-091252-
AMITE-ASCENSION-ASSUMPTION-EAST BATON ROUGE-EAST FELICIANA-HANCOCK-
HARRISON-IBERVILLE-JACKSON-LIVINGSTON-LOWER JEFFERSON-
LOWER LAFOURCHE-LOWER PLAQUEMINES-LOWER ST. BERNARD-LOWER TERREBONNE-
ORLEANS-PEARL RIVER-PIKE-POINTE COUPEE-ST. CHARLES-ST. HELENA-
ST. JAMES-ST. JOHN THE BAPTIST-ST. TAMMANY-TANGIPAHOA-
UPPER JEFFERSON-UPPER LAFOURCHE-UPPER PLAQUEMINES-UPPER ST. BERNARD-
UPPER TERREBONNE-WALTHALL-WASHINGTON-WEST BATON ROUGE-WEST FELICIANA-
WILKINSON-
315 PM CST WED MAR 9 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL AND SOUTHEAST
LOUISIANA AND EXTREME SOUTHWEST...SOUTH CENTRAL AND COASTAL
MISSISSIPPI.

.DAY ONE...THIS AFTERNOON AND TONIGHT
A FEW THUNDERSTORMS ARE POSSIBLE AHEAD OF A COLD FRONT THIS
AFTERNOON OVER SOUTHWEST MISSISSIPPI. IF THUNDERSTORMS DO
DEVELOP...ONE OR TWO MAY PRODUCE SMALL HAIL BECAUSE OF VERY COLD AIR
IN THE UPPER LEVELS OF THE ATMOSPHERE. NO SEVERE THUNDERSTORMS ARE
EXPECTED THIS AFTERNOON OR TONIGHT.

THE COLD FRONT WILL BRING STRONG NORTHWEST WINDS TONIGHT AND A SMALL
CRAFT ADVISORY IS POSTED FOR THE COASTAL WATERS AND THE TIDAL LAKES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
SMALL CRAFT ADVISORY CONDITIONS WILL LIKELY PERSIST IN THE COASTAL
WATERS EARLY FRIDAY. ANOTHER COLD FRONT WILL BRING STRONG NORTHWEST
WINDS AND POSSIBLE SMALL CRAFT ADVISORIES ON FRIDAY.

.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.

18

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, West Baton Rouge

When: March 9, 5:40 PM CST
Where: West Baton Rouge County, 1 mi S of Port Allen
Measured: 50 kt (58 mph) estimated gust
Property damage: $25,000
Reported by: LAW ENFORCEMENT
Coordinates: 30.433, -91.217

A railroad company security personnel reported that at least 40 vehicles had windshields blown completely out and hundreds of vehicles sustained wind damage at the offloading facility at the Port of Baton Rouge. The wind damage was apparently the result of a strong downburst associated with decaying convection. All of the glass damage was on vehicles facing northeast.

What these are

Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Louisiana in 2005 Every state in 2005 This day in weather history Warnings in Louisiana, March 2005

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5442900.