Noaa weather gov8/10/2023 ![]() The coverage maps are shown in a single color format, which relates to an estimated signal level.Seasonal environmental conditions, such as icing or heavy rain, affect performance of a transmitter station and its various components, particularly those subject to continuous weather exposure. During my summer with NOAA and the National Weather Service, I learned a LOT about the essential functions of the NWS and about the direct and important effects weather and climate have on everyone.Because of variations in local site conditions, the performance of an individual transmitter and antenna may be less than predicted or expected.In some special instances, the antenna may have been intentionally adjusted to be "directional" and provide better coverage to a specific area to the detriment of other areas.The antenna may be affected by nearby structures or bodies of water.This has prompted a Severe Thunderstorm Watch. Placement of NWR antennas is dictated by the tower owner, which may result in a less than ideal set up. By Jim Stefkovich, Meteorologist, Alabama Emergency Management Agency CLANTON Friday, 6:40 am JA small but potent line of severe thunderstorms will enter southwest Alabama around 7 am and move into the Florida Panhandle/northern Gulf of Mexico by 10 am.Antenna performance is a function of local conditions, causing signals to be stronger signal level in some directions than others. The computer model is sensitive to antenna performance.Coverage may be 5 to 10 percent below the computer predicted coverage for the following reasons: Straight-line winds and large hail will be the main threats.The coverage statistics and maps are calculated using a computer model and station data assuming ideal conditions. The radar products are also available as OGC compliant services to use in your application. Redevelopment of strong to severe thunderstorms along with torrential rainfall is expected generally south of Hwy 80 – I-85 between 1 pm and 8 pm Thursday. The NWS Radar site displays the radar on a map along with forecast and alerts. The next wave of severe storms will enter the western portions of the state between 11 pm and 1 am and move southeastward throughout the. A couple of severe thunderstorms will continue in far southern Alabama through the evening. By Jim Stefkovich, Meteorologist, Alabama Emergency Management Agency CLANTON Wednesday, 5:00 am JIn a setup more like spring, multiple waves of thunderstorms moving across the state from early this morning through early Thursday will have a severe weather threat, especially this afternoon into tonight. Occasional wave height is the average of the highest 1/10 of the wave spectrum. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. CLANTON Wednesday, 8:30 pm June 14, 2023. For waters within five nautical miles of shore. Weather, water and climate events, cause an average of approximately 650 deaths and 15 billion in damage per year and are responsible for some 90 percent of. This has prompted a Severe Thunderstorm Watch. Each year, the United States averages some 10,000 thunderstorms, 5,000 floods, 1,300 tornadoes and 2 Atlantic hurricanes, as well as widespread droughts and wildfires. A small but potent line of severe thunderstorms will enter southwest Alabama around 7 am and move into the Florida Panhandle/northern Gulf of Mexico by 10 am. Long-lived heat and humidity in the south-central continues. By Jim Stefkovich, Meteorologist, Alabama Emergency Management Agency. Heavy rain from showers and thunderstorms may produce flooding in the Mid-South to the Gulf Coast. Storms with potential for very large hail and damaging winds shifts to the Lower Mississppi Valley and the central Gulf Coast states. In addition, torrential rainfall could lead to flash flooding and Flood Watches are in effect across much of the state into Thursday. By Jim Stefkovich, Meteorologist, Alabama Emergency Management Agency. Active Storms and Oppressive Heat in the South. ![]() Within 50 miles of either side of this line, numerous storms are possible on an almost continuous basis through the night.įor the remainder of this afternoon through this evening near and south of I-20, the potential continues for a few tornadoes including EF2+, pockets of straight-line wind gusts of 80 mph causing significant damage and hail up to baseball size. ![]() The exception may near a nearly stationary boundary stretching from near a Tuscaloosa – Montgomery – Eufaula line. It should be noted that there will likely be 2-4 hour lulls between each wave of storms through tonight. There are little changes to the SPC outlook area, and I have included a timeline for severe weather through early Thursday morning. By Jim Stefkovich, Meteorologist, Alabama Emergency Management AgencyĬLANTON – Wednesday, 2:30 pm June 14, 2023Ī couple of tornadoes have been reported as of early afternoon in southeastern AL, with a number of damaging wind gusts near and north of I-20. ![]()
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