Louisiana Severe Tropical Storm Warning | Effective 06/17/2026 14:11

* LOCATIONS AFFECTED - Johnson Bayou - Holly Beach - Hackberry * WIND - LATEST LOCAL FORECAST: Below tropical storm force wind - Peak Wind Forecast: 20-30 mph with gusts to 35 mph - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39 to 57 mph - The wind threat has increased from the previous assessment. - PLAN: The sustained wind should remain less than tropical storm force. Conditions may still be gusty. - PREPARE: Listen for any instructions from local officials. - ACT: Ensure emergency readiness should the forecast change. - REALIZED IMPACTS: Being Assessed - Little to no additional wind impacts expected. Community officials are now assessing the extent of actual wind impacts accordingly. * STORM SURGE - LATEST LOCAL FORECAST: Localized storm surge possible - Peak Storm Surge Inundation: The potential for 1-3 feet above ground somewhere within surge prone areas - Window of concern: Begins this afternoon - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for storm surge flooding greater than 1 foot above ground - The storm surge threat has decreased from the previous assessment. - PLAN: Plan for storm surge flooding greater than 1 foot above ground. - PREPARE: Efforts should now be underway to prepare for storm surge flooding, especially in low-lying vulnerable areas. - ACT: Take actions to protect life and property. Prepare to leave if evacuation orders are given for your area. - POTENTIAL IMPACTS: Limited - Localized inundation with storm surge flooding mainly along immediate shorelines and in low-lying spots, or in areas farther inland near where higher surge waters move ashore. - Sections of near-shore roads and parking lots become overspread with surge water. Driving conditions dangerous in places where surge water covers the road. - Moderate beach erosion. Heavy surf also breaching dunes, mainly in usually vulnerable locations. Strong rip currents. - Minor to locally moderate damage to marinas, docks, boardwalks, and piers. A few small craft broken away from moorings. * FLOODING RAIN - LATEST LOCAL FORECAST: Flood Watch is in effect - Peak Rainfall Amounts: No additional significant rainfall forecast - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for localized flooding rain - The flooding rain threat has decreased from the previous assessment. - PLAN: Emergency plans should include the potential for localized flooding from heavy rain. - PREPARE: Consider protective actions if you are in an area vulnerable to flooding. - ACT: Heed any flood watches and warnings. - POTENTIAL IMPACTS: Limited - Localized rainfall flooding may prompt a few evacuations. - Rivers and tributaries may quickly rise with swifter currents. Small streams, creeks, canals, and ditches may become swollen and overflow in spots. - Flood waters can enter a few structures, especially in usually vulnerable spots. A few places where rapid ponding of water occurs at underpasses, low-lying spots, and poor drainage areas. Several storm drains and retention ponds become near-full and begin to overflow. Some brief road and bridge closures. * TORNADO - LATEST LOCAL FORECAST: - Situation is somewhat favorable for tornadoes - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for a few tornadoes - The tornado threat has remained nearly steady from the previous assessment. - PLAN: Plans should still include the potential for a few tornadoes. - PREPARE: Keep informed should additional weather alerts be needed. - ACT: If a tornado warning is issued, be ready to shelter quickly. - POTENTIAL IMPACTS: Limited - The occurrence of isolated tornadoes can hinder the execution of emergency plans during tropical events. - A few places may experience tornado damage, along with power and communications disruptions. - Locations could realize roofs peeled off buildings, chimneys toppled, mobile homes pushed off foundations or overturned, large tree tops and branches snapped off, shallow-rooted trees knocked over, moving vehicles blown off roads, and boats pulled from moorings.