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1:15PM EDT 30 August 2023 Update A fortuitously timed Eyewall Replacement Cycle began as Idalia made landfall, weakening the hurricane, and thus lowering the maximum sustained winds. Nonetheless, severe impacts were and still are widely felt. As of this update, Idalia continues pushing inland, analyzed by NHC as a Cat 1. The center is clearly located east of Valdosta, GA. NHC is now ending hourly advisories. The next intermediate advisory will be issued at 2:00 PM EDT. 9:00PM EDT 29 August 2023 Update Idalia is continuing to rapidly intensify. Interests along the west and northwest Florida coast, especially those in Surge Warning and Hurricane Warning areas should now be rushing any last minute preps to protect life and property to completion. Impacts will also be felt well inland. Power outages may last days or even weeks. Hazards such as felled and falilng trees, roof and even building failures, rapidly rising water, could soon make passage to safety difficult and potentially deadly in your area. 1:30PM EDT 29 August 2023 Update This wide view of the Tropical Atlantic really highlights how much larger Hurricane Idalia has become. While the cyclone has a well-defined and tight inner core with an increasingly healthy eyewall, the reach of Idalia's winds and heavy rains extends out up to hundreds of miles from the center. This not only will prolong the wind and rain over many locations, but also dramatically increase the fetch of storm surge. Deadly storm surge. This image is also a reminder that the entire basin is still favorable for development, with two more Tropical Cyclones being tracked (Franklin and T.D. 11), as well as two other areas of interest. Original Update Overnight, Hurricane Franklin became the first Major Hurricane of the 2023 Atlantic Hurricane Season, and as of the 4AM CT NHC Advisory, Hurricane Idalia is now officially forecast to become a Major Hurricane as well. The time for Floridians to prepare for potentially life-threatening storm surge, wind and rain is today. By Tuesday conditions (and not just the weather) may start to become far too difficult for many. Models are ingesting flight after flight of recon data now, and this should assist forecasters. We go into them in greater detail in the Idalia Forecast Lounge , which is also a good place to discuss pure informed speculation and best guesses as to Idalia's future. Social Media: Follow us on Facebook Tropical Storm Idalia Local Statement Advisory Number 7 National Weather Service Tallahassee FL AL102023 515 AM EDT Mon Aug 28 2023 /415 AM CDT Mon Aug 28 2023/ This product covers eastern Florida panhandle, Florida Big Bend, southeastern Alabama and southwestern Georgia Quote: SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Pinar del Rio Cuba A Tropical Storm Warning is in effect for... * Yucatan Peninsula from Tulum to Rio Lagartos, including Cozumel * Isle of Youth Cuba * Dry Tortugas Florida A Storm Surge Watch is in effect for... * Chokoloskee to Indian Pass Florida, including Tampa Bay A Hurricane Watch is in effect for... * Englewood to Indian Pass Florida, including Tampa Bay A Tropical Storm Watch is in effect for... * South of Englewood to Chokoloskee Florida * Lower Florida Keys west of the west end of the Seven Mile Bridge {{StormLinks|Idalia|10|10|2023|10|Idalia}} {{StormLinks|Franklin|08|8|2023|08|Franklin}} {{StormLinks|TD#11|11|11|2023|11|Tropical Depression Eleven}} {{TampaMedia}} {{PanhandleMedia}} {{SWFloridaMedia}} {{NortheastGulfRadar}} {{BermudaNews}} |
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Tropical Storm Idalia Local Statement Advisory Number 7 National Weather Service Tampa Bay Ruskin FL AL102023 515 AM EDT Mon Aug 28 2023 This product covers West Central and Southwest Florida **IDALIA CONTINUES TO INTENSIFY WITH LIFE-THREATENING STORM SURGE AND DANGEROUS WINDS BECOMING INCREASINGLY LIKELY FOR PORTIONS OF FLORIDA** NEW INFORMATION --------------- * CHANGES TO WATCHES AND WARNINGS: - None * CURRENT WATCHES AND WARNINGS: - A Storm Surge Watch and Hurricane Watch are in effect for Coastal Citrus, Coastal Hernando, Coastal Hillsborough, Coastal Levy, Coastal Manatee, Coastal Pasco, Coastal Sarasota, Inland Citrus, and Pinellas - A Storm Surge Watch and Tropical Storm Watch are in effect for Coastal Charlotte and Coastal Lee - A Hurricane Watch is in effect for Inland Hernando, Inland Hillsborough, Inland Levy, Inland Manatee, Inland Pasco, Inland Sarasota, and Sumter - A Tropical Storm Watch is in effect for DeSoto, Hardee, Inland Charlotte, Inland Lee, and Polk * STORM INFORMATION: - About 540 miles south-southwest of Mouth of Tampa Bay FL or about 500 miles south-southwest of Fort Myers FL - 20.1N 85.2W - Storm Intensity 65 mph - Movement North or 360 degrees at 7 mph SITUATION OVERVIEW ------------------ Tropical Storm Idalia continues to intensify off of the Yucatan Coast this morning. Idalia is forecast to move north and eventually northeast across the eastern Gulf of Mexico, making its way towards the Florida peninsula and intensifying to a major hurricane. Watches remain in effect for West Central and Southwest Florida and adjacent coastal waters. The following are the primary hazards of concern with Idalia: * Wind - Winds will increase Tuesday and remain gusty even after the storm passes into Thursday. Hurricane force winds are possible across much of the area and should be what residents prepare for, with tropical storm force winds possible across the southern zones. * Storm Surge - Areas across the Nature Coast are forecast to see extreme life-threatening levels of storm surge, with life-threatening surge also possible across west-central Florida. The main period of coastal flooding looks to occur Tuesday afternoon through early Thursday. * Rainfall - The majority of the rainfall associated with the system is forecast to fall Tuesday and Wednesday. A slight to moderate risk for flooding is possible, mainly along the coast and across the northern zones. Rainfall totals of 4 to 8 inches with locally higher amounts up to 12 inches is possible. POTENTIAL IMPACTS ----------------- * WIND: Prepare for life-threatening wind having possible devastating impacts across the Nature Coast and Tampa Bay region. Potential impacts in this area include: - Structural damage to sturdy buildings, some with complete roof and wall failures. Complete destruction of mobile homes. Damage greatly accentuated by large airborne projectiles. Locations may be uninhabitable for weeks or months. - Numerous large trees snapped or uprooted along with fences and roadway signs blown over. - Many roads impassable from large debris, and more within urban or heavily wooded places. Many bridges, causeways, and access routes impassable. - Widespread power and communications outages. Also, prepare for life-threatening wind having possible limited to extensive impacts across Southwest Florida. * SURGE: Prepare for life-threatening surge having possible devastating impacts along the Nature Coast. Potential impacts in this area include: - Widespread deep inundation, with storm surge flooding greatly accentuated by powerful battering waves. Structural damage to buildings, with many washing away. Damage greatly compounded from considerable floating debris. Locations may be uninhabitable for an extended period. - Near-shore escape routes and secondary roads washed out or severely flooded. Flood control systems and barriers may become stressed. - Extreme beach erosion. New shoreline cuts possible. - Massive damage to marinas, docks, boardwalks, and piers. Numerous small craft broken away from moorings with many lifted onshore and stranded. Also, prepare for life-threatening surge having possible significant to extensive impacts across Tampa Bay and Southwest Florida. * FLOODING RAIN: Prepare for life-threatening rainfall flooding having possible extensive impacts across the Nature Coast. Potential impacts include: - Major rainfall flooding may prompt many evacuations and rescues. - Rivers and tributaries may rapidly overflow their banks in multiple places. Small streams, creeks, canals, and ditches may become dangerous rivers. Flood control systems and barriers may become stressed. - Flood waters can enter many structures within multiple communities, some structures becoming uninhabitable or washed away. Many places where flood waters may cover escape routes. Streets and parking lots become rivers of moving water with underpasses submerged. Driving conditions become dangerous. Many road and bridge closures with some weakened or washed out. Prepare for dangerous rainfall flooding having possible limited to significant impacts across Tampa Bay and Southwest Florida. * TORNADOES: Prepare for a dangerous tornado event having possible significant impacts across West-Central Florida. Potential impacts include: - The occurrence of scattered tornadoes can hinder the execution of emergency plans during tropical events. - Several places may experience tornado damage with a few spots of considerable damage, power loss, and communications failures. - Locations could realize roofs torn off frame houses, mobile homes demolished, boxcars overturned, large trees snapped or uprooted, vehicles tumbled, and boats tossed about. Dangerous projectiles can add to the toll. Prepare for a tornado event having possible limited impacts across Southwest Florida. PRECAUTIONARY/PREPAREDNESS ACTIONS ---------------------------------- * EVACUATIONS: Listen to local officials for recommended preparedness actions, including possible evacuation. If ordered to evacuate, do so immediately. For those not under evacuation orders, assess the risk from wind, falling trees, and flooding at your location. If you decide to move, relocate to a safer location nearby. If you do not relocate, help keep roadways open for those under evacuation orders. * OTHER PREPAREDNESS INFORMATION: When making safety and preparedness decisions, do not focus on the exact forecast track since hazards such as flooding rain, damaging wind gusts, storm surge, and tornadoes extend well away from the center of the storm. If you live in a place particularly vulnerable to flooding, such as near the ocean or a large inland lake, in a low-lying or poor drainage area, or near an already swollen river, plan to move to safe shelter on higher ground. Always heed the advice of local officials and comply with orders that are issued. Do not needlessly jeopardize your life or the lives of others. * ADDITIONAL SOURCES OF INFORMATION: - For information on appropriate preparations see ready.gov - For information on creating an emergency plan see getagameplan.org - For additional disaster preparedness information see redcross.org |
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Tropical Storm Idalia Local Statement Advisory Number 7 National Weather Service Melbourne FL AL102023 534 AM EDT Mon Aug 28 2023 This product covers East Central Florida **Tropical Storm Idalia Forecast to Strengthen into a Hurricane as it Moves Into the Southeastern Gulf of Mexico Later Today** NEW INFORMATION --------------- * CHANGES TO WATCHES AND WARNINGS: - A Tropical Storm Watch has been issued for Orange, Osceola, and Seminole * CURRENT WATCHES AND WARNINGS: - A Tropical Storm Watch is in effect for Northern Lake, Orange, Osceola, Seminole, and Southern Lake * STORM INFORMATION: - About 640 miles south-southwest of Leesburg FL - 20.1N 85.2W - Storm Intensity 65 mph - Movement North or 360 degrees at 7 mph SITUATION OVERVIEW ------------------ The center of Tropical Storm Idalia is located around 125 miles south of the tip of western Cuba early this morning. Idalia is moving north at about 7 mph, with a continued northward motion expected today and Tuesday. The storm is currently forecast to approach the Florida Gulf coast Tuesday night into Wednesday as a major hurricane. Preparations should be ongoing for at least tropical storm conditions by mid week. A Tropical Storm Watch is now in effect for Lake, Seminole, Orange and Osceola Counties, where confidence is highest in tropical storm conditions occurring. Additional watches may be necessary for portions of east-central Florida later this morning. Showers, squalls and thunderstorms associated with outer rain bands from Idalia may reach central Florida by late this afternoon, with conditions further deteriorating Tuesday afternoon and evening as Idalia accelerates north-northeastward across the eastern Gulf of Mexico. As coverage of showers and squalls increases Tuesday afternoon into Wednesday, the possibility of strong to damaging wind gusts will also increase. Tropical storm force winds are forecast to extend outward from the storm's center, potentially reaching interior portions of east-central Florida Tuesday night into Wednesday morning. Based on the current forecast track, Idalia will make its closest pass to east-central Florida late Tuesday night and early Wednesday morning, continuing northeastward during the day on Wednesday. While the heaviest rainfall from Idalia is currently forecast to fall along the Gulf Coast and western Florida Peninsula, gusty squalls will be capable of torrential downpours, especially Tuesday and Wednesday over Lake County. One to two inches of rain from Monday afternoon through Wednesday night is expected for coastal areas and Okeechobee County and two to four inches are expected west of I-95 from Brevard and Osceola Counties northward, with locally higher amounts possible. Locations in closer proximity to the center of Idalia, such as Lake County in east-central Florida, may receive higher rainfall totals. In addition to strong wind gusts, a threat for tornadoes is forecast to develop as the center of Idalia moves into the eastern Gulf of Mexico from Tuesday afternoon into Wednesday. Incoming swell from Hurricane Franklin combined with winds from Idalia will lead to high seas, rough surf, an increase in life- threatening rip currents, and beach erosion Tuesday into Wednesday. Do not let your guard down, especially in locations outside of the current Tropical Storm Watch. Impacts from Idalia will be felt far from the center of the storm. Now is the time to ensure your hurricane supply kit is stocked and your safety plan is in place. As Idalia becomes better organized through this afternoon, additional changes to the current forecast are possible. Eastward shifts in the forecast track would increase the potential for local impacts, so continue to monitor the latest forecasts from the National Hurricane Center and National Weather Service in Melbourne, Florida. POTENTIAL IMPACTS ----------------- * WIND: Prepare for dangerous wind having possible significant impacts across portions of east central Florida. Potential impacts in this area include: - Some damage to roofing and siding materials, along with damage to porches, awnings, carports, and sheds. A few buildings experiencing window, door, and garage door failures. Mobile homes damaged, especially if unanchored. Unsecured lightweight objects become dangerous projectiles. - Several large trees snapped or uprooted, but with greater numbers in places where trees are shallow rooted. Several fences and roadway signs blown over. - Some roads impassable from large debris, and more within urban or heavily wooded places. A few bridges, causeways, and access routes impassable. - Scattered power and communications outages, but more prevalent in areas with above ground lines. * FLOODING RAIN: Prepare for dangerous rainfall flooding having possible significant impacts across portions of east central Florida. Potential impacts include: - Moderate rainfall flooding may prompt several evacuations and rescues. - Rivers and tributaries may quickly become swollen with swifter currents and overspill their banks in a few places, especially in usually vulnerable spots. Small streams, creeks, canals and ditches overflow. - Flood waters can enter some structures or weaken foundations. Several places may experience expanded areas of rapid inundation at underpasses, low-lying spots, and poor drainage areas. Some streets and parking lots take on moving water as storm drains and retention ponds overflow. Driving conditions become hazardous. Some road and bridge closures. * TORNADOES: Prepare for a dangerous tornado event having possible significant impacts across portions of east central Florida. Potential impacts include: - The occurrence of scattered tornadoes can hinder the execution of emergency plans during tropical events. - Several places may experience tornado damage with a few spots of of considerable damage, power loss, and communications failures. - Locations could realize roofs torn off frame houses, mobile homes demolished, boxcars overturned, large trees snapped or uprooted, vehicles tumbled, and small boats tossed about. Dangerous projectiles can add to the toll. * SURGE: Direct surge impacts from Idalia are not currently anticipated at this time. However, larger swells and surf combined with Hurricane Franklin will bring a threat for minor coastal flooding and beach erosion.Locations more vulnerable to coastal flooding and beach erosion, such as portions of the Volusia County coast, should stay updated on the latest forecasts. PRECAUTIONARY/PREPAREDNESS ACTIONS ---------------------------------- * EVACUATIONS: Listen to local official for recommended preparedness actions, including possible evacuation. If ordered to evacuate, do so immediately. * OTHER PREPAREDNESS INFORMATION: Now is the time to check your emergency plan and emergency supplies kit and take necessary actions to protect your family and secure your home or business. When making safety and preparedness decisions, do not focus on the exact forecast track since hazards such as flooding rain, damaging wind gusts, storm surge, and tornadoes extend well away from the center of the storm. When securing your property, outside preparations should be concluded as soon as possible before conditions deteriorate. The onset of strong gusty winds or flooding can cause certain preparedness activities to become unsafe. Closely monitor weather.gov, NOAA Weather Radio and local news outlets for official storm information. Listen for possible changes to the forecast. There is a threat from tornadoes with this storm. Have multiple ways to receive Tornado Warnings. Be ready to shelter quickly. * ADDITIONAL SOURCES OF INFORMATION: - For information on appropriate preparations see ready.gov - For information on creating an emergency plan see getagameplan.org - For additional disaster preparedness information see redcross.org NEXT UPDATE ----------- The next local statement will be issued by the National Weather Service in Melbourne FL around 12 Noon EDT, or sooner if conditions warrant. $$ Cristaldi Quick Link |
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Idalia Conditions in Your Area |
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Shear over Idalia has continued to come way down over the past 24 hours and is analyzed by the CIMSS Wind Shear Product at just 4 knots. Favorable to Very Favorable shear is forecast for the next 24 hours. HURRICANE 10L 12:00UTC 29August2023 UW-CIMSS Experimental Vertical Shear and TC Intensity Trend Estimates Current Conditions (from NHC) : Latitude : 23:49:44 N Longitude : 84:57:32 W Intensity (MSLP) : 983.7 hPa Max Pot Int (MPI,from Emanuel) : 890.0 hPa MPI differential (MSLP-MPI) : 93.7 hPa CIMSS Vertical Shear Magnitude : 2.2 m/s ( 4.2 kts) Direction : 206.5 deg Outlook for TC Intensification Based on Current Env. Shear Values and MPI Differential Forecast Interval : 6hr: F 12hr: VF 18hr: VF 24hr: VF |
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Relatively cool and moist eye at the moment, but pressure is still lower than earlier, with the winds a bit stronger. It should be noted that these winds are from the NW and SE quadrants, recon having not yet sampled what are probably even stronger winds in the Right Front Quadrant (NE). Worth noting that there may be a little bit of increased shear over Idalia this afternoon. However, this is expected to drop again tonight, along with increased instability from the atmosphere cooling while the ocean remains exceptionally warm. Product: Air Force Vortex Message (URNT12 KNHC) Transmitted: 29th day of the month at 20:26Z Agency: United States Air Force Aircraft: Lockheed WC-130J Hercules with reg. number AF97-5304 Storm Name: Idalia Storm Number & Year: 10 in 2023 (flight in the North Atlantic basin) Mission Number: 11 Observation Number: 04 A. Time of Center Fix: 29th day of the month at 20:21:40Z B. Center Fix Coordinates: 25.91N 84.82W B. Center Fix Location: 190 statute miles (306 km) to the WSW (255°) from Fort Myers, FL, USA. C. Minimum Height at Standard Level: 2,879m (9,446ft) at 700mb D. Minimum Sea Level Pressure: 972mb (28.71 inHg) E. Dropsonde Surface Wind at Center: From 205° at 5kts (From the SSW at 6mph) F. Eye Character: Open in the northwest G. Eye Shape & Diameter: Circular with a diameter of 25 nautical miles (29 statute miles) H. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 63kts (72.5mph) I. Location & Time of the Estimated Maximum Surface Wind Inbound: 5 nautical miles to the NW (312°) of center fix at 20:20:00Z J. Maximum Flight Level Wind Inbound: From 34° at 53kts (From between the NNE and NE at 61.0mph) K. Location & Time of the Maximum Flight Level Wind Inbound: 5 nautical miles to the NW (312°) of center fix at 20:20:00Z L. Estimated (by SFMR or visually) Maximum Surface Wind Outbound: 69kts (79.4mph) M. Location & Time of the Estimated Maximum Surface Wind Outbound: 14 nautical miles (16 statute miles) to the SE (136°) of center fix at 20:25:30Z N. Maximum Flight Level Wind Outbound: From 237° at 91kts (From the WSW at 104.7mph) O. Location & Time of the Maximum Flight Level Wind Outbound: 18 nautical miles (21 statute miles) to the SE (135°) of center fix at 20:26:30Z P. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 14°C (57°F) at a pressure alt. of 3,067m (10,062ft) Q. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 15°C (59°F) at a pressure alt. of 3,068m (10,066ft) R. Dewpoint Temp (collected at same location as temp inside eye): 14°C (57°F) R. Sea Surface Temp (collected at same location as temp inside eye): Not Available S. Fix Determined By: Penetration, Radar, Wind, Pressure and Temperature S. Fix Levels (surface & flight level centers within 5nm of each other): Surface and 700mb T. Navigational Fix Accuracy: 0.02 nautical miles T. Meteorological Accuracy: 1 nautical mile Remarks Section: Maximum Flight Level Wind: 91kts (~ 104.7mph) which was observed 18 nautical miles (21 statute miles) to the SE (135°) from the flight level center at 20:26:30Z |
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