Latest news with #AlexDaSilva
Yahoo
3 days ago
- Climate
- Yahoo
National Weather Service issues heat advisory due to scorching Pensacola heat index
What does this week's weather forecast look like? Hot. The Florida Panhandle is under a heat advisory until 7 p.m. on Monday as heat index values are expected to reach up to a whopping 108 degrees, according to the National Weather Service. In the Pensacola area, the high will reach near 93 degrees, with the heat index hitting 106 degrees. The NWS says temperatures will be hotter closer to the coast. Temperatures will remain high through at least Tuesday in Pensacola, which will likely see another heat advisory as the heat index is forecast to reach 106 degrees again. The NWS highly recommends drinking plenty of fluids, staying in an air-conditioned room and staying out of the sun if you have to be outside. Wednesday will see the start of several storms associated with a low-pressure area that AccuWeather says could develop into another tropical rainstorm. The risk of tropical development is currently low, but it will ultimately depend on how far away the center of the disturbance remains offshore as it travels westward throughout the week. The more time the system's center spends offshore, the more time it has to strengthen, according to AccuWeather Lead Hurricane Expert Alex DaSilva. "If the center is able to stay offshore long enough, it will increase its chances for tropical development. However, if the center hugs the coast, it will struggle to strengthen." "Another factor will be stiff, disruptive breezes (wind shear), which will also tend to push the storm steadily and swiftly to the west," DaSilva explained. Triple-digit temps triggers heat advisory in Florida Panhandle The National Weather Service office in Mobile, Alabama, issued a heat advisory in Escambia, Santa Rosa and Okaloosa counties between 10 a.m. and 7 p.m. Monday. Heat index values are forecast to reach as high as 109℉ in portions of south central and southwest Alabama, northwest Florida and southeast Mississippi. The sweltering heat will stick around through Tuesday, which will likely trigger another heat advisory. Pensacola heat index: 106℉ Milton heat index: 109℉ Fort Walton heat index: 107℉ What is a heat advisory? What to know about heat alerts The National Weather Service uses a three-tiered heat alert system. Not all local offices use every heat-related product due to some places being more prepared to deal with intense heat than others. Here's a general rundown of what each heat alert means: Extreme Heat Warning — Take Action! An extreme heat warning is issued when extremely dangerous heat conditions are expected or occurring. Avoid outdoor activities, especially during the heat of the day. If you must be outside, be sure to drink plenty of water and take frequent breaks in the shade. Stay indoors in an air-conditioned space as much as possible, including overnight. Check on family and neighbors. Extreme Heat Watch — Be Prepared! An extreme heat watch is issued when conditions are favorable for an extreme heat event but its occurrence and timing is still uncertain. Plan to suspend all major outdoor activities if a warning is issued. If you do not have air conditioning, locate the nearest cooling shelter or discuss staying with nearby family or friends who have air conditioning. Heat Advisory — Take Action! A heat advisory is issued for dangerous heat conditions that are not expected to reach warning criteria. Consider postponing or rescheduling outdoor activities, especially during the heat of the day. If you must be outside, be sure to drink plenty of water and take frequent breaks in the shade. Stay in a cool place, especially during the heat of the day and evening. Heat index alert: Weather watches and warnings issued in Florida This article originally appeared on Pensacola News Journal: Heat advisory triggered in Florida Panhandle as heat index reaches 106 Solve the daily Crossword
Yahoo
5 days ago
- Climate
- Yahoo
National Hurricane Center tracking Invest 93L, 3 tropical waves. What's next for Florida?
Invest 93L was moving inland over southeastern Louisiana, according to the 2 p.m. advisory from the National Hurricane Center. Little development is expected while the center remains near the coast this afternoon and tonight, and the systemis expected to weaken as it moves farther inland on Friday. ➤ Track all active storms ➤ Weather alerts via text: Sign up to get updates about current storms and weather events by location Torrential downpours that could trigger dangerous flooding is the main threat for the north-central Gulf Coast as Invest 93L targets Louisiana, according to AccuWeather, which is calling the system of low pressure a "tropical rainstorm." The next named storm of the 2025 Atlantic hurricane season will be Dexter. Historically, the fourth named storm of the Atlantic hurricane season arrives Aug. 15. The last two named storms of the season — Barry and Chantal — developed earlier than normal. Here's the latest advisory from the National Hurricane Center as of 2 p.m. July 17: Invest 93L moving inland over southeastern Louisiana. See path, impacts Satellite, surface, and radar data indicate that the broad low pressure area is moving inland over southeastern Louisiana, and that the associated shower and thunderstorm activity remains disorganized and located mainly to the west and southwest of the center. Little development is expected while the center remains near the coast this afternoon and tonight, and the systemis expected to weaken as it moves farther inland on of development, heavy rainfall could produce localized flash flooding over portions of the north-central Gulf Coast through Friday. Formation chance through 48 hours: low, 10 percent. Formation chance through 7 days: low, 10 percent. Spaghetti models for Invest 93L Special note about spaghetti models: Illustrations include an array of forecast tools and models, and not all are created equal. The hurricane center uses only the top four or five highest performing models to help make its forecasts. Where will Invest 93L go next? Tornadoes, up to 16 inches of rain possible "Regardless of development, heavy rainfall could produce localized flash flooding over portions of the north-central Gulf Coast through Friday," the National Hurricane Center said. "Weak steering breezes will guide the rainstorm westward over southern Louisiana on Thursday (July 17), according to AccuWeather. "At that point, steering breezes may drop off, which could allow the rainstorm to stall and produce downpours over the same area. "It is also possible that more of a northward or westward drift may continue. The former would allow some heavy rain to spread into more of the Mississippi Delta and lower valley region. The latter could allow downpours to spread westward and possibly reach close to Houston. "It is possible that a couple of tornadoes and waterspouts develop near the central Gulf coast as the storm moves inland on Thursday," said AccuWeather Lead Hurricane Expert Alex DaSilva. "A sizable zone where 4-8 inches of rain is forecast to fall extends across much of the southern half of Louisiana and part of southern Mississippi. Within this zone, pockets where 8-12 inches of rain can fall are anticipated with an AccuWeather Local StormMax rainfall of 16 inches." What is an invest? Short for investigation, the National Hurricane Center uses the term invest for areas of low pressure it is monitoring for potential development into a tropical depression or storm. Invests are not tropical depressions or tropical storms. They're usually clusters of showers and thunderstorms, and just because they've been designated as an invest does not guarantee they'll strengthen into a tropical storm or hurricane. Invests run from 90 to 99, followed by a letter: L for the Atlantic basin and E for those in the eastern Pacific. After 99, it starts over again and the next invest would be 90. Once something has been designated as an invest, specialized data sets and computer models can begin, including scheduling Hurricane Hunter aircraft missions and running spaghetti models. Florida weather radar for July 17, 2025 National Weather Service Florida forecast for July 17. Impacts from Invest 93L Pensacola, western Panhandle: Expect some impacts from Invest 93L across the area in the form of heavy rainfall and high surf. Tallahassee, central Panhandle: Localized pockets of heavy rain are possible in the area today. Rip currents are a significant threat along the Florida Panhandle and Big Bend beaches today. Jacksonville, North/Northeast Florida: Warming trend expected into the weekend, with highs in the upper 90s to near 100 inland. Daytona Beach to Stuart, East/Central Florida: Scattered to numerous showers and storms, with highest chances across the interior as warm and humid conditions continue. West Palm Beach to Naples, South/Southwest Florida: One more afternoon of scattered to numerous storms across South Florida. Fort Myers to Sarasota, West/Southwest Florida: Expect a final day of elevated heavy rainfall potential across mainly coastal counties today, with potential flooding in low lying and poor drainage areas this afternoon and evening. ➤ How to set up emergency cellphone notifications for flash flood warnings and safety tips ➤ Excessive rainfall forecast What else is happening in the tropics? The National Hurricane Center is tracking three tropical waves. Tropical wave 1: A far eastern Atlantic tropical wave is along 27W, from 09N to 22N, moving westward at 11 to 17 mph. Tropical wave 2: An eastern Caribbean tropical wave is along 66W-67W, south of 20N, moving westward at 23 mph. Tropical wave 3: A western Caribbean tropical wave is along 79W-80W, south of 20N, moving westward at 23 mph. AccuWeather said there's also a potential for tropical development off the central coast of the U.S. July 22-25. 2025 hurricane season so far An average Atlantic hurricane season has 14 named storms, seven hurricanes, and three major hurricanes. Here's when this year's named storms have developed, compared to historical averages: Tropical Storm Andrea: formed June 24. Average start date: June 20 Tropical Storm Barry: formed June 29. Average start date: July 17 Tropical Storm Chantal: formed July 5. Average start date: Aug. 3. Next up, Dexter: Average state date: Aug. 15, with the average first hurricane forming Aug. 11. Weather watches and warnings issued in Florida Hurricane names for 2025 season Here are the names for the 2025 Atlantic hurricane season, along with how to pronounce them: Andrea (June 24) Barry (June 29) Chantal (July 5) Dexter: DEHK-ster Erin: AIR-rin Fernand: fair-NAHN Gabrielle: ga-bree-ELL Humberto: oom-BAIR-toh Imelda: ee-MEHL-dah Jerry: JEHR-ee Karen: KAIR-ren Lorenzo: loh-REN-zoh Melissa: meh-LIH-suh Nestor: NES-tor Olga: OAL-guh Pablo: PAHB-lo Rebekah: reh-BEH-kuh Sebastien: se-BAS-tee-en Tanya: TAHN-yuh Van: van Wendy: WEN-dee When is the Atlantic hurricane season? The Atlantic hurricane season runs from June 1 through Nov. 30. Ninety-seven percent of tropical cyclone activity occurs during this time period, NOAA said. The Atlantic basin includes the northern Atlantic Ocean, Caribbean Sea and Gulf of America, as the Gulf of Mexico is now known in the U.S. per an order from President Trump. NOAA and the National Hurricane Center are now using Gulf of America on its maps and in its advisories. When is the peak of hurricane season? National Hurricane Center map: See what forecasters watching now Systems currently being monitored by the National Hurricane Center include: Why does NHC say 'tropical cyclone' on its maps instead of hurricane or tropical storm? Tropical cyclone is the generic term used by the National Weather Service, NOAA and the National Hurricane Center for any tropical system, even if it's in the tropical Atlantic basin. To be more precise, a tropical cyclone is a "rotating, organized system of clouds and thunderstorms that originates over tropical or subtropical waters and has closed, low-level circulation," NOAA sadi. Once maximum sustained winds reach 74 mph, what it is called is determined by where it originated: : for storms in the North Atlantic, central North Pacific, and eastern North Pacific. : for storms in the Northwest Pacific. : for storms in the South Pacific and Indian Ocean. Interactive map: Hurricanes, tropical storms that have passed near your city Stay informed. Get weather alerts via text What's next? We will update our tropical weather coverage daily. Download your local site's app to ensure you're always connected to the news. And look for our special subscription offers here. This story has been updated to include new information. This article originally appeared on Palm Beach Post: Hurricane Center tracking Invest 93L. Florida impacts
Yahoo
6 days ago
- Climate
- Yahoo
More tropical activity may brew over Gulf next week
As a belt of high pressure builds over much of the southern United States next week, waters over the northern Gulf to areas along the central Gulf coast will be the zone to watch for tropical development, AccuWeather meteorologists advise. "Basically, a swirl in the shower and thunderstorm pattern, partially associated with the tropical rainstorm that doused Louisiana from Wednesday to Thursday, may be recycled days later," AccuWeather Lead Hurricane Expert Alex DaSilva said. This particular batch of thunderstorms may barely be recognizable as it blends in with existing showers and thunderstorms and travels toward the Ohio Valley this weekend, then off the southern Atlantic coast early next week. From there, winds will guide this swirl, likely containing downpours and thunderstorms westalong the northern Gulf of Mexico. "The area we are watching will be in a zone of higher wind shear (disruptive breezes) when compared to prior areas we have been watching in the northeast Gulf and along the southern Atlantic coast," DaSilva said. "The southern Atlantic area gave birth to Chantal earlier in July." Moderate to high wind shear will limit the development of any tropical rainstorm that organizes over the northern Gulf. At this time, AccuWeather has assigned a low risk of tropical development for next week. "The wind shear will also act as swift steering breezes, quickly taking any such fledgling feature westward across the Gulf with limited time for strengthening," DaSilva said. "Still, a center that tries to form over the open waters of the Gulf instead of bouncing along the upper Gulf coast would have better odds at developing."Have the app? Unlock AccuWeather Alerts™ with Premium+ The steering breezes could carry any moisture west toward Texas and bring at least some uptick in thunderstorm activity along the Texas coast for the middle and latter part of next week. Farther north, under the core of the building heat dome, little to no thunderstorm activity is anticipated in areas such as northern Texas, Oklahoma, Arkansas and Kansas. Should a tropical storm develop, the next name on the list for 2025 is Dexter. Want next-level safety, ad-free? Unlock advanced, hyperlocal severe weather alerts when you subscribe to Premium+ on the AccuWeather app. AccuWeather Alerts™ are prompted by our expert meteorologists who monitor and analyze dangerous weather risks 24/7 to keep you and your family safer. Solve the daily Crossword
The Independent
6 days ago
- Climate
- The Independent
More than 30 million people at risk of flash flooding just weeks after deadly Texas floods
More than 30 million Americans are under the threat of dangerous flash flooding through the weekend and into next week. The forecast comes on the heels of heavy rain in Louisiana and Mississippi on Thursday, major and disruptive flooding that forced a state of emergency in New Jersey, and deadly flash floods in Texas that took the lives of at least 135 people, including children at a Christian girls' camp. 'This tropical rainstorm is not expected to strengthen and get an official name, but it will soak the Gulf Coast. This major rainmaker could trigger dangerous flash flooding from Louisiana and Mississippi all the way to the Ohio Valley and Appalachians through the weekend,' AccuWeather Lead Hurricane Expert Alex DaSilva explained. 'Areas south and west of New Orleans could see four to eight inches of rainfall. We're increasingly concerned about the risk of flooding through the weekend as the moisture from this tropical rainstorm surges northward,' he said. Residents of 11 states across the Midwest, Ohio Valley, and Appalachians will see moisture from the same tropical rainstorm that brought flooding impacts to the Gulf Coast from Saturday through Monday. AccuWeather meteorologists said two to four inches of rain is expected from Saturday through Monday from Iowa to the Appalachians, including in Chicago, Indianapolis, and Pittsburgh. 'The area of low pressure at center of tropical rainstorm is expected to dissipate Saturday over Arkansas or Missouri. However, the some of the remaining moisture-laden tropical air and atmospheric spin associated with the former rainstorm will be drawn farther north,' AccuWeather Vice President of Forecast Operations Dan DePodwin explained. 'This can enhance the risk for heavy rainfall and flash flooding into early next week across the Midwest and Ohio Valley.' Widespread flooding across the region is not expected, but pockets of significant flash flooding are possible from Iowa to the Appalachian mountains, with some areas seeing as many as 13 inches of rain. 'Don't let your guard down on this threat for flash flooding. People across parts of Iowa and Illinois to the Ohio Valley and Appalachians need to be prepared for the risk of flash flooding. Some of these areas already have saturated ground after rounds of downpours and storms in recent weeks,' said Porter. In areas where one to three inches of rain occur per hour, there may be additional rounds of life-threatening flash flooding into next week. The danger comes as several states across the country are recovering from the impacts of flooding rainfall events. In Central Texas, the search continued for people who went missing in and around Kerr County and 'Flash Flood Alley' earlier this month. The flood moved quickly in the middle of the night, dumping 10 or more inches in a matter of hours, due to the remnants of Tropical Storm Barry lingering over the Lone Star State, As the Earth's atmosphere warms, it has the ability to hold more moisture and produce conditions ripe for flooding rainfall. Human-caused climate change is increasing the frequency of 1,000-year flood events around the world, which have a 0.1 percent chance of occurring in any given year, according to the U.S. Geological Survey. Four happened in less than a week this month. 'This has been a tremendously impactful and dangerous year with flash flooding tragedies reported across the country,' Porter said. ' The number of flash flood reports this year to date has been a staggering 70 percent above the 10-year historical average.'
Daily Mail
7 days ago
- Climate
- Daily Mail
Gulf Coast braces for flooding as tropical system approaches
The latest spaghetti models of this storm, called Invest 93L, have shifted its path away from the East Coast, predicting that it will barrel through Louisiana and head north into Arkansas by Saturday. A spaghetti model shows the different possible paths a tropical storm or hurricane might take, based on predictions from multiple weather computer programs. AccuWeather's lead hurricane expert Alex DaSilva said: 'We're increasingly concerned about the risk of flooding through the weekend as the moisture from this tropical rainstorm surges northward.' Areas south and west of New Orleans are projected to be flooded with up to eight inches of rain before the storm moves into the heart of the country. AccuWeather's chief meteorologist Jonathan Porter noted that 2025 has already been a devastating year for flash floods, and the new forecasts warn of heavy rainfall in cities like Chicago, Pittsburgh, Cincinnati, Indianapolis, and St Louis starting Saturday.
