Alert archive / Louisiana / Winter Storm Warnings in 2009

Winter Storm Warning 1, NWS New Orleans, LA

December 4, 20098 parishes in Louisiana; 5 counties in Mississippi

NWS New Orleans, LA issued this winter storm warning at Dec 4, 2009, 4:58 PM CST for 8 parishes in Louisiana; 5 counties in Mississippi. It took effect at Dec 4, 2009, 6:00 PM CST. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 4, 2009, 4:58 PM CST (22:58 UTC)
In effect from: Dec 4, 2009, 6:00 PM CST
Expired: Dec 5, 2009, 2:15 AM CST
In force: 8 hr
Issued by: NWS New Orleans, LA

Counties East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberville Parish, LA, Pointe Coupee Parish, LA, Saint Helena Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Amite County, MS, Pearl River County, MS, Pike County, MS, Walthall County, MS, Wilkinson County, MS

What forecasters said that day

The local office's own words before this winter storm 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 winter storm warning went out at Dec 4, 3:43 PM CST, 1 hour 15 minutes earlier.

Area forecast discussion, Dec 4, 3:43 PM CST, 1 hour 15 minutes before

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Hazardous weather outlook, Dec 4, 11:07 AM CST, 5 hours 51 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1107 AM CST FRI DEC 4 2009

GMZ530-550-555-570-575-LAZ034>040-046>050-056>070-MSZ068>071-077-
080>082-051230-
PASCAGOULA TO SW PASS MISSISSIPPI RIVER OUT 20 NM-
PASCAGOULA TO SW PASS MISSISSIPPI RIVER 20-60 NM OUT-
SW PASS MISSISSIPPI RIVER TO ATCHAFALAYA RIVER OUT 20 NM-
SW PASS MISSISSIPPI RIVER TO ATCHAFALAYA RIVER 20-60 NM OUT-AMITE-
ASCENSION-ASSUMPTION-EAST BATON ROUGE-EAST FELICIANA-HANCOCK-
HARRISON-IBERVILLE-JACKSON-LAKES PONTCHARTRAIN AND MAUREPAS-
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-
1107 AM CST FRI DEC 4 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF COASTAL WATERS
OF SOUTHEAST LOUISIANA AND SOUTH MISSISSIPPI...SOUTHEAST
LOUISIANA AND SOUTHERN MISSISSIPPI.

.DAY ONE...THIS AFTERNOON AND TONIGHT
A WINTER WEATHER ADVISORY HAS BEEN ISSUED FOR A LARGE PORTION OF
THE AREA TONIGHT FOR AREAS GENERALLY NORTH OF THE INTERSTATE 10/12
CORRIDOR AND WEST OF THE INTERSTATE 59 CORRIDOR...A RAIN AND SNOW
MIX MAY START BY EARLY EVENING AND CHANGE TO ALL SNOW DURING THE
NIGHT. ALONG THE INTERSTATE 10 CORRIDOR THROUGH MISSISSIPPI AND
THE RIVER PARISHES...A RAIN SNOW MIX IS EXPECTED BY LATE EVENING WITH
A POTENTIAL CHANGE OVER TO ALL SNOW AFTER MIDNIGHT.

SNOWFALL ACCUMULATION OF UP TO 1 INCH IS EXPECTED FOR MOST AREAS
IN THE ADVISORY. SOME ISOLATED AMOUNTS UP TO 1.5 INCHES WILL BE
POSSIBLE WITH THE STRONGEST SNOW BANDS. THE GREATEST PROBABILITY
OF ACCUMULATION WILL BE ALONG AND NORTH OF A LINE FROM
DONALDSONVILLE LOUISIANA TO SAUCIER MISSISSIPPI. WINTRY
PRECIPITATION CAN ALSO FREEZE ON ELEVATED ROADWAYS LEADING TO
HAZARDOUS DRIVING CONDITIONS.

ADDITIONALLY...SMALL CRAFT ADVISORIES HAVE BEEN POSTED FOR THE
COASTAL WATERS THROUGH TONIGHT AS A LOW MOVES THROUGH THE NORTHERN
GULF OF MEXICO CREATING STRONG WINDS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
A WEAK FRONTAL SYSTEM WILL AFFECT THE AREA BY SUNDAY NIGHT AND
MONDAY AND UNSETTLED WEATHER WILL CONTINUE UNTIL A STRONG COLD
FRONT MOVES THROUGH WEDNESDAY.

MARINE...
MODERATE NORTHERLY WINDS ARE EXPECTED TO CONTINUE OVER THE
COASTAL WATERS SATURDAY MORNING BEFORE WEAKENING TO AROUND 15
KNOTS BY NOON.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED.

32

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 4, 3:42 PM CST	Freeze Warning	LIX	Assumption, East Baton Rouge, East Feliciana, Iberville, Pointe Coupee, Saint Helena and 4 more	16 hr

Nearby

Winter Storm Warnings in Louisiana, 2009 Winter Storm Warnings in Mississippi, 2009 Every winter storm warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.