{"url_path":"/weather/alerts/2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.005.1","section_key":"alert","section_title":"Tropical Storm Warning issued July 21 at 4:16PM CDT by NWS New Orleans LA","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-07-21","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a6ffaca85cbc73beb28db5670baf4d4695d7ca0b.005.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS New Orleans LA"},"word_count":701,"has_tables":false,"body_markdown":"# Tropical Storm Warning: Tropical Storm Warning issued July 21 at 4:16PM CDT by NWS New Orleans LA\n\n**Severity:** Severe\n**Certainty:** Likely\n**Urgency:** Immediate\n**Areas:** Coastal Jefferson\n**Issued by:** NWS New Orleans LA\n**Sent:** 2026-07-21T16:16:00-05:00\n**Effective:** 2026-07-21T16:16:00-05:00\n**Expires:** 2026-07-22T00:30:00-05:00\n\n## Description\n* LOCATIONS AFFECTED\n- Grand Isle\n\n* WIND\n- LATEST LOCAL FORECAST: Below tropical storm force wind\n- Peak Wind Forecast: 25-35 mph with gusts to 50 mph\n\n- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST\nUNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39\nto 57 mph\n- The wind threat has remained nearly steady from the\nprevious assessment.\n- PLAN: Plan for hazardous wind of equivalent tropical storm\nforce.\n- PREPARE: Remaining efforts to protect property should be\ncompleted as soon as possible. Prepare for limited wind\ndamage.\n- ACT: Move to safe shelter before the wind becomes hazardous.\n\n- POTENTIAL IMPACTS: Limited\n- Damage to porches, awnings, carports, sheds, and unanchored\nmobile homes. Unsecured lightweight objects blown about.\n- Many large tree limbs broken off. A few trees snapped or\nuprooted, but with greater numbers in places where trees\nare shallow rooted. Some fences and roadway signs blown\nover.\n- A few roads impassable from debris, particularly within\nurban or heavily wooded places. Hazardous driving\nconditions on bridges and other elevated roadways.\n- Scattered power and communications outages.\n\n* STORM SURGE\n- LATEST LOCAL FORECAST: Localized storm surge possible\n- Peak Storm Surge Inundation: The potential for 1-3 feet\nabove ground somewhere within surge prone areas\n- Window of concern: Wednesday morning until Thursday morning\n\n- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST\nUNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for storm\nsurge flooding greater than 1 foot above ground\n- The storm surge threat has remained nearly steady from the\nprevious assessment.\n- PLAN: Plan for storm surge flooding greater than 1 foot\nabove ground.\n- PREPARE: Complete preparations for storm surge flooding,\nespecially in low-lying vulnerable areas, before conditions\nbecome unsafe.\n- ACT: Leave immediately if evacuation orders are given for\nyour area.\n\n- POTENTIAL IMPACTS: Limited\n- Localized inundation with storm surge flooding mainly along\nimmediate shorelines and in low-lying spots, or in areas\nfarther inland near where higher surge waters move ashore.\n- Sections of near-shore roads and parking lots become\noverspread with surge water. Driving conditions dangerous\nin places where surge water covers the road.\n- Moderate beach and marsh erosion. Strong rip currents\npossible along Grand Isle.\n- Minor to locally moderate damage to marinas, docks,\nboardwalks, and piers. A few small craft broken away from\nmoorings.\n\n* FLOODING RAIN\n- LATEST LOCAL FORECAST:\n- Peak Rainfall Amounts: Additional 1-3 inches, with locally\nhigher amounts\n\n- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST\nUNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for\nlocalized flooding rain\n- The flooding rain threat has remained nearly steady from\nthe previous assessment.\n- PLAN: Emergency plans should include the potential for\nlocalized flooding from heavy rain.\n- PREPARE: Consider protective actions if you are in an area\nvulnerable to flooding.\n- ACT: Heed any flood watches and warnings.\n\n- POTENTIAL IMPACTS: Limited\n- Localized rainfall flooding may prompt a few evacuations.\n- Rivers and tributaries may quickly rise with swifter\ncurrents. Small streams, creeks, canals, and ditches may\nbecome swollen and overflow in spots.\n- Flood waters can enter a few structures, especially in\nusually vulnerable spots. A few places where rapid ponding\nof water occurs at underpasses, low-lying spots, and poor\ndrainage areas. Several storm drains and retention ponds\nbecome near-full and begin to overflow. Some brief road and\nbridge closures.\n\n* TORNADO\n- LATEST LOCAL FORECAST:\n- Situation is unfavorable for tornadoes\n\n- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST\nUNCERTAINTY IN TRACK, SIZE AND INTENSITY: Tornadoes not expected\n- The tornado threat has remained nearly steady from the\nprevious assessment.\n- PLAN: Tornadoes are not expected. Showers and thunderstorms\nwith gusty winds may still occur.\n- PREPARE: Little to no preparations needed to protect\nagainst tornadoes at this time. Keep informed of the latest\ntornado situation.\n- ACT: Listen for changes in the forecast.\n\n- POTENTIAL IMPACTS: Little to None\n- Little to no potential impacts from tornadoes.\n\n* FOR MORE INFORMATION:\n- https://gohsep.la.gov/emergency"}