Weather Alert in Louisiana

Recent Locations: Tioga, LA

Flood Watch issued May 5 at 3:27PM CDT until May 8 at 7:00PM CDT by NWS New Orleans LA

AREAS AFFECTED: Pointe Coupee; West Feliciana; East Feliciana; St. Helena; Washington; Iberville; West Baton Rouge; East Baton Rouge; Assumption; St. James; St. John The Baptist; Upper Lafourche; St. Charles; Upper St. Bernard; Upper Terrebonne; Lower Terrebonne; Lower Lafourche; Coastal Jefferson; Lower Plaquemines; Lower St. Bernard; Northern Tangipahoa; Southeast St. Tammany; Western Orleans; Eastern Orleans; Northern St. Tammany; Southwestern St. Tammany; Central Tangipahoa; Lower Tangipahoa; Northern Livingston; Southern Livingston; Western Ascension; Eastern Ascension; Upper Jefferson; Lower Jefferson; Upper Plaquemines; Central Plaquemines; Wilkinson; Amite; Pike; Walthall; Pearl River; Northern Hancock; Northern Harrison; Northern Jackson; Southern Hancock; Southern Harrison; Southern Jackson

DESCRIPTION: * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southeast Louisiana, including the following parishes, Assumption, Central Plaquemines, Central Tangipahoa, Coastal Jefferson Parish, East Baton Rouge, East Feliciana, Eastern Ascension, Eastern Orleans, Iberville, Lower Jefferson, Lower Lafourche, Lower Plaquemines, Lower St. Bernard, Lower Tangipahoa, Lower Terrebonne, Northern Livingston, Northern St. Tammany, Northern Tangipahoa, Pointe Coupee, Southeast St. Tammany, Southern Livingston, Southwestern St. Tammany, St. Charles, St. Helena, St. James, St. John The Baptist, Upper Jefferson, Upper Lafourche, Upper Plaquemines, Upper St. Bernard, Upper Terrebonne, Washington, West Baton Rouge, West Feliciana, Western Ascension and Western Orleans and southern Mississippi, including the following areas, Amite, Northern Hancock, Northern Harrison, Northern Jackson, Pearl River, Pike, Southern Hancock, Southern Harrison, Southern Jackson, Walthall and Wilkinson. * WHEN...From Tuesday evening through Thursday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Heavy rain will move into the area beginning late Tuesday. Four to six inches of rain is forecast across the area during this timeframe, locally higher amounts are possible. - http://www.weather.gov/safety/flood

INSTRUCTION: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

View All Alerts for Louisiana

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What are Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds

Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails