539 WUUS54 KMRX 190431 SVRMRX TNC029-057-059-063-089-093-155-190515- /O.NEW.KMRX.SV.W.0228.251219T0431Z-251219T0515Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Morristown TN 1131 PM EST Thu Dec 18 2025 The National Weather Service in Morristown has issued a * Severe Thunderstorm Warning for... East central Knox County in east Tennessee... Jefferson County in east Tennessee... Central Cocke County in east Tennessee... Southwestern Greene County in east Tennessee... Southwestern Grainger County in east Tennessee... North central Sevier County in east Tennessee... Southwestern Hamblen County in east Tennessee... * Until 1215 AM EST. * At 1131 PM EST, a severe thunderstorm was located near New Market, or 9 miles southwest of Jefferson City, moving east at 55 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Morristown, Sevierville, Jefferson City, Newport, Dandridge, White Pine, New Market, Baneberry, Parrottsville, and Strawberry Plains. This includes the following highways... Interstate 40 in Tennessee between mile markers 400 and 438. Interstate 81 in Tennessee between mile markers 1 and 13. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3597 8374 3615 8372 3619 8297 3589 8298 TIME...MOT...LOC 0431Z 271DEG 49KT 3605 8364 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ SR  872 WHUS52 KMHX 190443 SMWMHX AMZ158-178-190515- /O.NEW.KMHX.MA.W.0285.251219T0443Z-251219T0515Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Newport/Morehead City NC 1143 PM EST Thu Dec 18 2025 The National Weather Service in Newport has issued a * Special Marine Warning for... S of Cape Lookout NC to Surf City NC out to 20 nm... Waters from Cape Lookout to Surf City NC from 20 to 40 nm... * Until 1215 AM EST. * At 1143 PM EST, a severe thunderstorm capable of producing waterspouts was located 15 nm southwest of Big Ten Fathom, moving north at 30 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. * The severe thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. && LAT...LON 3412 7668 3410 7681 3438 7695 3442 7666 TIME...MOT...LOC 0443Z 167DEG 31KT 3418 7677 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...>34KTS $$ RJ  473 FZUS72 KMHX 190451 MWSMHX Marine Weather Statement National Weather Service Newport/Morehead City NC 1151 PM EST Thu Dec 18 2025 AMZ158-178-190515- /O.CON.KMHX.MA.W.0285.000000T0000Z-251219T0515Z/ 1151 PM EST Thu Dec 18 2025 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1215 AM EST... For the following areas... S of Cape Lookout NC to Surf City NC out to 20 nm... Waters from Cape Lookout to Surf City NC from 20 to 40 nm... At 1151 PM EST, a severe thunderstorm capable of producing waterspouts was located 12 nm southwest of Big Ten Fathom, moving north at 30 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. The severe thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. && LAT...LON 3421 7672 3420 7681 3438 7691 3441 7670 TIME...MOT...LOC 0451Z 167DEG 31KT 3425 7679 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...>34KTS $$ RJ  780 WWUS54 KMRX 190459 SVSMRX Severe Weather Statement National Weather Service Morristown TN 1159 PM EST Thu Dec 18 2025 TNC057-093-155-190508- /O.CAN.KMRX.SV.W.0228.000000T0000Z-251219T0515Z/ Knox TN-Grainger TN-Sevier TN- 1159 PM EST Thu Dec 18 2025 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL KNOX... SOUTHWESTERN GRAINGER AND NORTH CENTRAL SEVIER COUNTIES IS CANCELLED... The severe thunderstorm which prompted the warning has moved out of the warned area. Therefore, the warning has been cancelled. && LAT...LON 3595 8352 3596 8352 3616 8351 3619 8297 3589 8298 TIME...MOT...LOC 0458Z 271DEG 49KT 3604 8318 $$ TNC029-059-063-089-190515- /O.CON.KMRX.SV.W.0228.000000T0000Z-251219T0515Z/ Jefferson TN-Cocke TN-Greene TN-Hamblen TN- 1159 PM EST Thu Dec 18 2025 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM EST FOR JEFFERSON...CENTRAL COCKE...SOUTHWESTERN GREENE AND SOUTHWESTERN HAMBLEN COUNTIES... At 1158 PM EST, a severe thunderstorm was located near Parrottsville, or near Newport, moving east at 55 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Morristown, Jefferson City, Newport, Dandridge, White Pine, Baneberry, Parrottsville, Mosheim, Caney Branch, and Del Rio. This includes the following highways... Interstate 40 in Tennessee between mile markers 413 and 438. Interstate 81 in Tennessee between mile markers 1 and 13. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3595 8352 3596 8352 3616 8351 3619 8297 3589 8298 TIME...MOT...LOC 0458Z 271DEG 49KT 3604 8318 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ 27  929 FZUS72 KCHS 190459 MWSCHS Marine Weather Statement National Weather Service Charleston SC 1159 PM EST Thu Dec 18 2025 AMZ330-350-352-190800- Charleston Harbor- Waters from South Santee River to Edisto Beach SC out 20 NM- Waters from Edisto Beach SC to Savannah GA out 20 NM- 1159 PM EST Thu Dec 18 2025 ...PATCHY DENSE FOG OVERNIGHT... Areas of fog, with locally dense fog, could remain across portions of the nearshore South Carolina waters, including the Charleston Harbor during the next couple hours. Fog could limit visibility to less than 1/2 mile at times, causing hazardous navigation conditions. By late tonight, a cold front will arrive and winds should strengthen, dissipating any fog. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners are urged to navigate with extreme care. If you must navigate in these conditions, proceed with caution. Use proper fog signals, including fog horns. Make sure all navigational running lights are on. Please relay any reports of sea fog to the Charleston or Tybee Island Coast Guard stations and ask them to immediately forward your report to the National Weather Service in Charleston. && $$