Residents of the Gulf Coast hunkered down Tuesday as Hurricane Isaac, formerly known as Tropical Storm Isaac, barreled toward New Orleans. The U.S. National Hurricane Center in Miami declared Isaac a Category 1 hurricane Tuesday with winds of 75 mph -- they could be even stronger by the time Isaac reaches the coast.

Hurricane Isaac landfall is forecast in southeast Louisiana on Tuesday night or early Wednesday, according to the Associated Press.

As of early Tuesday afternoon,Hurricane Isaac was moving northwest at 10 mph, expected to slow further, forecasters said, giving it time to wreak havoc in some areas. Total rainfall could be 14 inches in many places, with some isolated areas getting as much as 20 inches, CNN reported.

President Obama declared a state of emergency in Louisiana yesterday, taking no chances on the seventh anniversary of the devastation wrought by Hurricane Katrina. On Tuesday, he told Gulf Coast residents to prepare for Hurricane Isaac, warning, "Now's not the time to tempt fate."

Do you have photos of Hurricane Isaac to share? Submit it to our slideshow below, including the photo location.

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  • Indian Wells, Boynton Beach

    <a href="http://www.huffingtonpost.com/social/buminthesun421"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/aol_profile_img/1581723.png" /></a><a href="http://www.huffingtonpost.com/social/buminthesun421">buminthesun421</a>:<br />Intersection of Cambay Drive and Cambay Circle in Indian Wells

  • A safety aide moves a fallen traffic light in Fort Lauderdale, Fl. (CREDIT: Instagram user <a href="http://ipv6.statigr.am/p/267368560300175217_52109906" target="_hplink">@sasspants327</a>)

  • Schools Open in St. Lucie County Florida

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />A lot of kids and there parents where stranded Aug 27th 2012 as the county school districts left school open. The flooding started around the time school was released. Many parents could not even drive to pick up there kids at the bus stops due to water 4 feet deep in some parts of St. Lucie County. Many Students where brought back to the schools and there parents had to wait for the water to go down. A lot of people lost cars in the deep water. Climate change? Parents where mad the schools where open.

  • Traffic pile-up at an intersection in Lauderdale Lakes, Fl. (CREDIT: Twitter user <a href="https://twitter.com/links_Madboss" target="_hplink">@links_Madboss</a>)

  • Street skimming in West Palm Beach, Fl. (CREDIT: Twitter user <a href="https://twitter.com/MichaelDAvanzo" target="_hplink">@MichaelDAvanzo</a>)

  • Elderly brave the water

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />This was taken in the height of the storm off US1 in Port St. Lucie Florida. A retirement community Savanna Club always fills with water. They are so close to the St. Lucie River and Savannas Marsh Developers build Manufactured homes the elderly live in and most where stranded!However some braved the water! & Made it.

  • Davie, Fl. (CREDIT: Instagram user <a href="http://ink361.com/#/users/11547826/photos" target="_hplink">@just_cow</a>)

  • A backyard in The Acreage, Fl. (CREDIT: Instagram user <a href="http://instaview.me/user/aileen_ovoxo/" target="_hplink">@aileen_ovoxo</a>)

  • Fort Pierce, Fl. (CREDIT: Instagram user @sabrina_mcmillandelarm)

  • White City Park Fort Pierce Florida

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />This is the totaly flooded White City Park on the banks of the St. Lucie River. This River carries not only the storm water and natural water toward the ocean but the Army Corps use it to dump polluted farm water from Lake Okeechobee. This puts a stress on the natural water trying to escape and also on the health of the river system. Its never been right and this is typical flooding the last couple of storms.

  • Boca Raton, Fl. (CREDIT: Instagram user @lotus_flowerr)

  • Near Destin, Fl. (CREDIT: Twitter user <a href="https://twitter.com/Tara_R" target="_hplink">@Tara_R</a>)

  • Palm Beach, Fl. (CREDIT: Twitter user <a href="https://twitter.com/loveandenergy" target="_hplink">@loveandenergy</a>)

  • Port St Lucie, Fl. (CREDIT: Instagram user <a href="http://followgram.me/tinypawspuppies" target="_hplink">@tinypawspuppies</a>)

  • Port St Lucie, Fl. (CREDIT: Instagram user <a href="http://followgram.me/tinypawspuppies" target="_hplink">@tinypawspuppies</a>)

  • A windsurfer at Key Biscayne yesterday evening. (CREDIT: Twitter user <a href="https://twitter.com/erikFdowell" target="_hplink">@erikFdowell</a>)

  • Treasure Coast, Fl. (CREDIT: Instagram user <a href="http://followgram.me/toniiyayo" target="_hplink">@toniiyayo</a>)

  • Clearwater Beach Pier, Fl. (CREDIT: Instagram user <a href="http://web.stagram.com/p/267459588286553968_1656510" target="_hplink">@memosmusic</a>)

  • Boynton Beach, Fl. (CREDIT: Instagram user <a href="http://web.stagram.com/p/267452785276813743_14096855" target="_hplink">@sillyducky88</a>)

  • Binks Forest, Fl. (CREDIT: Twitter user <a href="https://fr.twitter.com/Kushman150" target="_hplink">@Kushman150</a>)

  • Kids playing on a flooded street in West Palm Beach, Fl. (CREDIT: Twitter user <a href="https://twitter.com/KristyMilitello" target="_hplink">@KristyMilitello</a>)

  • An airport arrivals board showing mostly canceled flights (CREDIT: Twitter user <a href="https://twitter.com/WhySharksMatter" target="_hplink">@WhySharksMatter</a>)

  • Cabby Stalled in St. Lucie Jewelry & Coin Parking Lot

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />Eastport Shopping plaza Port St. Lucie Florida got flooded and a lot of cars and people shopping trapped.

  • St Lucie County Bussiness Flooded

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />This is off Oleander in Fort Pierce Florida. Totally under water in this area. French Creek overflowed and many people had 2 feet of water in there homes and business.

  • Propane tanks Floating about

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />This is the propane store in St. Lucie County Florida. French Creek overflowed as water tried to make its way to the St. Lucie River. Water control is in place and failed.

  • French Creek Over flowing

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />This is one of the Creeks that overflowed as the water control allowed. More than likely to save the New high school Fort Piece Central. They will flood the neighbors homes and business instead.

  • Stalled Cars everywhere

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />Cars stalled at my work in St. Lucie County Florida in the St. Lucie Jewelry & Coins parking lot. Eastport shopping center. Port St. Lucie Florida

  • Elderly Brave the water

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />Elderly braving the water at the corner of US1 & Savanna Club Blvd. A retirement community was build between a Marsh and the major river St Lucie River. Many where stranded or loss cars. Some braved it and made it!

  • Ten Mile Creek Overflowed

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />Ten Mile Creek over flowed as the Sweetwater Dr. off 25th st. Fort Pierce Florida Community suffered DEEP water. I fear it destroyed homes there. Residents had to park at the end of the road and swim home. Water control efforts to save a High School and the demand to empty lake Okeechobee with these river and creek systems may have flooded homes in area.

  • Mail Box almost coverd

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />This is a view of the Sweetwater Dr. Neighborhood off 25th St. Fort Pierce Florida St. Lucie County. This community is near Ten Mile Creek. Water control may have let the creek over flow to save the new Fort Pierce High school or allowed the water from Lake Okeechobee discharges to continue at the sacrifice of homes near the creek.

  • Home Flooded in Fort Pierce Florida Aug 27th 2012

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />This home is located on Ten Mile Creek & is now underwater. The Creek Over Flowed during Tropical Storm Isaac

  • Weldon B. Lewis Park / Ancient Oaks Preserve

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />St Lucie County Florida, White City Florida. This park has a canal located south of it. That canal overflowed and totally flooded this huge park. Also all homes around this area are sandbagged or a total loss. I was driving a small car and could not go any future toward the homes.

  • Sunset as Isaac says bye to South Florida

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />Taken on the St. Lucie River in Martin County Florida

  • Mudding on US1 Port St. Lucie Florida

    <a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1167127439/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Mandy_Ann_Osipchuk">Mandy Ann Osipchuk</a>:<br />This is when the whole road overflowed and the Marsh at Savanna Club Blvd Port St. Lucie could hold no more water. This area is Pancaked between Marsh and the St. Lucie River. You can see the mud tracks from people trying to escape!

  • Isaac off the coast of Pine Island Florida

    <a href="http://www.huffingtonpost.com/social/Anne_Siperek"><img style="float:left;padding-right:6px !important;" src="http://i.huffpost.com/profiles/644653-tiny.png?20110805232211" /></a><a href="http://www.huffingtonpost.com/social/Anne_Siperek">Anne Siperek</a>:<br />taken with my cell phone from a car window on the evening of 8/26/2012

  • Isaac Flooding

    <a href="http://www.huffingtonpost.com/social/mjsuave"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/mjsuave">mjsuave</a>:<br />This is our parking lot in North Lauderdale!

  • Tropical Storm Isaac Kisses Miami

    <a href="http://www.huffingtonpost.com/social/leemitchellrules"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/leemitchellrules">leemitchellrules</a>:<br />The first kiss from Tropical Storm Isaac in Miami.

  • Rainbow over Catholic Charities of the Diocese of Baton Rouge

    <a href="http://www.huffingtonpost.com/social/cspruell"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/cspruell">cspruell</a>:<br />A rainbow over the Catholic Charities office greeted us this morning as our disaster operations team planned our response to Hurricane Isaac. Praying for safety from the storm ... God is our refuge and strength, an ever-present help in trouble. Therefore we will not fear.

  • The day before the storm

    <a href="http://www.huffingtonpost.com/social/Anna_Joy_Vickery"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/100000573967527/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Anna_Joy_Vickery">Anna Joy Vickery</a>:<br />On the way to Pensacola Beach

  • Sam's good try at Pensacola Beach

    <a href="http://www.huffingtonpost.com/social/Anna_Joy_Vickery"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/100000573967527/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Anna_Joy_Vickery">Anna Joy Vickery</a>:<br />Surfing lost to rough waves and strong currents.

  • Flooding in Wellington

    <a href="http://www.huffingtonpost.com/social/dwa1513"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/dwa1513">dwa1513</a>:<br />Shopping center on the corner of Wellington Trace and Greenview Shores in Wellington

  • Boynton Beach

    <a href="http://www.huffingtonpost.com/social/buminthesun421"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/aol_profile_img/1581723.png" /></a><a href="http://www.huffingtonpost.com/social/buminthesun421">buminthesun421</a>:<br />Behind the CitiBank and CVS. There is a six foot deep canal to the right of the stop sign.

  • Via Poinciana & 10th Ave North, Lake Worth, FL

    <a href="http://www.huffingtonpost.com/social/mopar2"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/mopar2">mopar2</a>:<br />Our Castle, now has a moat!!

  • Via Poinciana & 10th Ave North, Lake Worth FL

    <a href="http://www.huffingtonpost.com/social/mopar2"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/mopar2">mopar2</a>:<br />The water was only a few feet from my front door. We were very lucky to only lose power and cable for a few hours.

  • Military vehicles in the French Quarter, New Orleans, La. (CREDIT: Twitter user <a href="https://twitter.com/lunanola" target="_hplink">@lunanola</a>)

  • Strong winds and heavy rain topples trees onto house

    <a href="http://www.huffingtonpost.com/social/CSG1372"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/CSG1372">CSG1372</a>:<br />With the heavy rain softening the ground, these pines were easily pushed over by the strong winds.

  • Tornado in Pascagoula, MS. (CREDIT: Twitter user <a href="https://twitter.com/J_Sims_4" target="_hplink">@J_Sims_4</a>)

  • Tornado forming in Pascagoula, MS. (CREDIT: Twitter user <a href="https://twitter.com/J_Sims_4" target="_hplink">@J_Sims_4</a>)

  • A house demolished by the tornado on Market Street, Pascagoula, MS. (CREDIT: Twitter user <a href="https://twitter.com/J_Sims_4" target="_hplink">@J_Sims_4</a>)

  • A tree uprooted on Jena and Carondelet Streets, in the Uptown area of New Orleans (CREDIT: Hannah Palmer)

  • Covington, La. (CREDIT: Alex Lawler)