Weather Alerts For Petros, TN

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM EDT /8 PM CDT/ FRIDAY # DETAILS -------------------- WHAT Afternoon heat index values will approach or exceed 100 at times over all but the higher elevations, and some valley locations may see heat index values exceed 105. WHERE Portions of southwest North Carolina, East Tennessee, and southwest Virginia. WHEN Until 9 PM EDT /8 PM CDT/ Friday. IMPACTS Hot temperatures and high humidity may cause heat illnesses. ISSUED AT Thursday, July 2, 2026 at 12:00 AM EDT ISSUED BY National Weather Service Morristown TN HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. # AREAS AFFECTED -------------------- Blount Smoky Mountains, Northwest Cocke, Sequatchie, Southeast Carter, Southeast Greene, Southeast Monroe, Sullivan, Wise, Anderson, Bledsoe, Bradley, Campbell, Cherokee, Claiborne, Clay, Cocke Smoky Mountains, East Polk, Grainger, Hamblen, Hamilton, Hancock, Hawkins, Jefferson, Johnson, Knox, Lee, Loudon, Marion, McMinn, Meigs, Morgan, North Sevier, Northwest Blount, Northwest Carter, Northwest Greene, Northwest Monroe, Rhea, Roane, Russell, Scott TN, Scott VA, Sevier Smoky Mountains, Unicoi, Union, Washington TN, Washington VA, West Polk Including the cities of Dunlap, Big South Fork National, Shady Valley, Turtletown, Lebanon, Whitwell, Laurel Bloomery, Huntsville, Oliver Springs, Palio, Brayton, Topton, Clear Water, Conasauga, Archville, Big Spring, Dayton, Violet, Tasso, Melvine, Oneida, Luttrell, Trade, Norma, Cagle, White Oak, Coker Creek, Coeburn, Benhams, Sharps Chapel, South Holston Dam, Smokey Junction, Hartford, Hampton, Old Washington, Sweetwater, Elgin, McMahan, Monteagle, Mountain City, Unicoi, Russellville, Jasper, Sandlick, Sevierville, Chestnut Hill, Morristown, Pardee, Harriman, Springdale, Kodak, Old Cumberland, Shooting Creek, Chattanooga, Marble, Seymour, Bullet Creek, Bearden, Reliance, Hansonville, Sneedville, South Pittsburg, Gatlinburg, Rose Hill, Maynardville, Tusquitee, Royal Blue, Big Frog Mountain, Kingston, Powells Crossroads, Kyles Ford, Norris Lake, Maryville, Rockwood, Elizabethton, La Follette, Eagle Furnace, Athens, Greeneville, Jellico, Johnson City, Loudon, Andrews, Alpha, Evanston, Norton, Elk Valley, Arthur, Harrisburg, Jefferson City, Petros, Castlewood, Hiawasse Dam, High Point, Howard Quarter, Lookout Mountain, Erwin, Cleveland, Knoxville, Treadway, White Pine, Madisonville, Bradbury, Bybee, Lenoir City, Spring City, Limestone Cove, Benton, Martin Springs, Parksville, Oak Ridge, Lone Mountain, Happy Valley, Hiltons, Etowah, Abingdon, Slick Rock, Harrogate-Shawanee, Cartwright, Doeville, Bristol TN, Fairview, Grandview, Alcoa, Fincastle, Haletown (Guild), Wise, Hayesville, Strawberry Plains, Caryville, Citico, Rosedale, Appalachia, Kingsport, Signal Mountain, Mount Crest, Unaka, Pigeon Forge, Lake Forest, Pikeville, Cedar Creek, Big Stone Gap, Elkmont, Dandridge, Murphy, Mooresburg, Bean Station, Newport, Clairfield, Evensville, Ducktown, Cades Cove, Dye, Dentville, Neva, Honaker, Pine Orchard, Paulette, Brasstown, Bristol VA, Lone Oak, and Clinton

There is a Slight Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE NORTHERN PLAINS INTO THE UPPER MIDWEST THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THE NORTHERN PLAINS INTO PARTS OF THE UPPER GREAT LAKES AND MIDWEST AND OVER THE SOUTHERN APPALACHIANS SUMMARY Strong to severe storms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians on Thursday. Isolated strong to severe storms may also occur in the Tennessee Valley, central High Plains, and parts of the Northeast. Synopsis The upper level pattern across the US will be characterized by troughing across the western US with a high amplitude ridge across the eastern US. Between these features, several shortwave troughs will rotate through the flow across the central/northern Plains into the Midwest. A surface low will be located across eastern Montana into the western Dakotas, with a surface boundary extending from the northern Plains into the Upper Midwest. Northern High Plains into the Great Lakes and Midwest Early morning convection is likely across some portion of North Dakota in association with a vort max moving out of Montana. The evolution of this activity will likely have implications on the exact placement of the surface boundary by this afternoon across the Dakotas. Afternoon thunderstorm development is expected near the surface low and in the vicinity of the surface boundary/residual outflow across the Dakotas by the afternoon. Coverage should increase as a shortwave moves out of Montana into the afternoon/evening with increasing forcing for ascent. Across the northern High Plains, strong daytime heating amid steep low to mid-level lapse rates will support moderate to strong instability. This in combination with deep-layer shear around 40-45 kts will support initial supercells capable of large to very large hail and damaging wind. Through time, boundary parallel shear and large dew point spreads promoting outflow dominate storms will likely support one or more clusters/bowing segments moving south and east with time, resulting in an increase in the damaging wind threat and potential for a few significant gust 75+ mph. Southern Appalachians into the Tennessee Valley A very moist and unstable air mass is expected to be in place across the Southern Appalachians into the Tennessee Valley this afternoon. Widely scattered thunderstorms are expected to develop across the high terrain, with tendency to cluster along outflows. Consensus is highest across the Appalachians into the Tennessee Valley for a more focused corridor of damaging wind potential. Central High Plains Isolated thunderstorms are expected to develop within the lee trough across the central High Plains this afternoon. Moderate instability overlapping with around 25-30 kts of deep-layer shear will support potential for a mix of supercells and multi-cell clusters. Steep low- to mid-level lapse rates and large temperature/dew point spreads will support potential for severe gusts. Initial supercells will pose potential for large hail. Northeast Northeasterly flow within the northern periphery of the eastern ridge will allow for thunderstorm activity to track southward out of Quebec/Ontario across portions of the Northeast this afternoon. The presence of moderate to strong instability and 30-40 kt of deep-layer shear will be supportive of organized storm modes with the predominant hazard being damaging winds. Higher wind probabilities and a level 2/Slight Risk may be needed with additional outlook updates if a more favorable corridor of wind potential become clearer.