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SEL7 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 77 NWS Storm Prediction Center Norman OK 635 PM CDT Sun Mar 30 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northwest Louisiana Southeast and East-Central Texas * Effective this Sunday night and Monday morning from 635 PM until 200 AM CDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2.5 inches in diameter likely Scattered damaging wind gusts to 70 mph likely A tornado or two possible SUMMARY...Thunderstorms coverage is expected to increase over the next few hours across southeast and east-central TX before then continuing downstream into northwest LA. Strong instability and moderate shear will support the potential for supercells. The primary severe hazard with these supercells will be large to very large hail (i.e. greater than 2" in diameter). Strong wind gusts could occur as well. Given the potential for a supercell mode, a tornado or two is also possible. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from 35 miles north northwest of College Station TX to 35 miles southeast of Shreveport LA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 70...WW 71...WW 72...WW 74...WW 75...WW 76... AVIATION...A few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24030. ...Mosier