One product issued by NWS for: New Orleans LA
Hazardous Weather Outlook
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 1131 AM CST TUE FEB 9 2010 GMZ530-550-555-570-575-LAZ034>040-046>050-056>070-MSZ068>071-077- 080>082-101745- LAKE PONTCHARTRAIN AND LAKE MAUREPAS- COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO LOWER ATCHAFALAYA RIVER LA OUT 20 NM- COASTAL WATERS FROM PASCAGOULA MS TO THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER OUT 20 NM- COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO LOWER ATCHAFALAYA RIVER LA FROM 20 TO 60 NM- COASTAL WATERS FROM PASCAGOULA MS TO THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER 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- 1131 AM CST TUE FEB 9 2010 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 MARINE HAZARDS... CONDITIONS WILL BE HAZARDOUS FOR SMALL CRAFT ACROSS THE TIDAL LAKES AND COASTAL WATERS DUE TO STRONG NORTHERLY WINDS BEHIND OUR COLD FRONT THIS MORNING. WINDS WILL REMAIN HIGH THROUGH THE NIGHT. RIVER FLOODING... MANY RIVERS AND STREAMS REMAIN IN HIGH FLOWS OR IN FLOOD. PLEASE REFER TO THE LATEST RIVER FLOOD STATEMENTS AND FORECASTS FOR MORE DETAILS. COLD WEATHER... THE COMBINATION OF COLD TEMPERATURES AND BRISK NORTH WINDS WILL CAUSE WIND CHILL READINGS TO DROP INTO THE 30S LATE IN THE AFTERNOON OR EVENING...AND IN THE 20S DURING THE OVERNIGHT HOURS. A LIGHT TO MODERATE FREEZE IS EXPECTED BY EARLY WEDNESDAY MORNING OVER AREAS WEST AND NORTH OF LAKE PONTCHARTRAIN INTO SOUTH MISSISSIPPI. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY WINTER WEATHER HAZARDS... AN AREA OF LOW PRESSURE WILL DEVELOP IN THE WESTERN GULF OF MEXICO THURSDAY AND MOVE EAST ACROSS THE NORTHERN OR CENTRAL GULF WATERS LATE THURSDAY AND FRIDAY. A COLD AIRMASS WILL BE IN PLACE AS MOISTURE INCREASES OVER THE REGION ON THURSDAY. LIGHT RAIN IS LIKELY DURING THE AFTERNOON ON THURSDAY...AND SOME LIGHT SLEET MAY MIX IN NEAR THE INTERSTATE 10 AND 12 CORRIDORS...WITH A MIX OF LIGHT RAIN...SLEET AND SNOW POSSIBLE ACROSS SOUTHWEST MISSISSIPPI. ON THURSDAY NIGHT...WIDESPREAD PRECIPITATION IS EXPECTED. IF A HEAVY BAND OF PRECIPITATION CAN DEVELOP ACROSS AREAS NORTH OF THE I 10/12 CORRIDOR ESPECIALLY ACROSS SOUTHWEST MISSISSIPPI AND PORTIONS OF THE UPPER FLORIDA PARISHES...NORTH OF BATON ROUGE...RAIN IS EXPECTED TO CHANGEOVER TO MOSTLY SNOW...AND THERE COULD BE SEVERAL INCHES OF SNOW ACCUMULATION THURSDAY NIGHT INTO FRIDAY MORNING. RAIN OR SNOW IS POSSIBLE ACROSS METROPOLITAN BATON ROUGE...PORTIONS OF THE NORTHSHORE...AND AREAS JUST INLAND FROM THE COAST IN SOUTHEAST MISSISSIPPI. IF MORE SNOW THAN RAIN FALLS...THERE COULD BE LIGHT SNOWFALL ACCUMULATIONS BY FRIDAY MORNING. FARTHER SOUTH...AREAS SOUTH OF LAKE PONTCHARTRAIN AND ACROSS THE COASTAL WATERS ARE EXPECTED TO SEE MAINLY RAIN FROM THIS SYSTEM...HOWEVER SOME LIGHT SLEET COULD MIX IN DURING THE ONSET ON THURSDAY AFTERNOON. ANY SLEET IS EXPECTED TO FALL ON SURFACES THAT WILL BE WELL ABOVE FREEZING...SO NO SIGNIFICANT ICING OF ROADS OR BRIDGES IS EXPECTED IN THIS AREA AT THIS TIME. ALL PRECIPITATION IS EXPECTED TO END FRIDAY MORNING WEST OF LAKE PONTCHARTRAIN AND I-55...AND EARLY IN THE AFTERNOON OVER AREAS TO THE EAST AND SOUTH. MARINE HAZARDS... CONDITIONS MAY REMAIN HAZARDOUS FOR SMALL CRAFT WEDNESDAY MORNING ACROSS PORTIONS OF THE COASTAL WATERS. THE NEXT LOW PRESSURE SYSTEM IS LIKELY TO PRODUCE HAZARDOUS WINDS AND SEAS FOR SMALL CRAFT THURSDAY NIGHT INTO FRIDAY. RIVER FLOODING... MANY RIVERS WILL REMAIN IN HIGH FLOWS OR IN FLOOD. PLEASE REFER TO THE LATEST RIVER FLOOD STATEMENTS AND FORECASTS FOR MORE DETAILS. .SPOTTER INFORMATION STATEMENT... $$