NHC: LIFE-THREATENING WINDS AND FLASH FLOODS EXPECTED OVER PORTIONS OF BAJA CALIFORNIA SUR AND SONORA TODAY AND TUESDAY, CONDITIONS EXPECTED TO BEGIN DETERIORATING THIS MORNING IN BAJA CALIFORNIA SUR
NHC has initiated advisories on Potential Tropical Cyclone One (formerly AL90) located over southern Texas. Potential Tropical Cyclone Advisories (PTC Advisories) are issued when there is high confidence that the disturbance will develop into a storm and bring significant impacts.
Potentially life-threatening flash and urban flooding is possible across the Texas coast eastward into central Mississippi through Thursday. Prolonged rainfall may extend the flood threat into the weekend. Widespread small stream and minor river flooding is expected along the Texas coast into southwest Louisiana, with isolated areas of significant river flooding possible across the Texas Coast and Louisiana.
Potential Tropical Cyclone One is forecast to become a tropical storm as it moves along or just off the northwestern Gulf coast through Wednesday. Tropical Storm Watches have been issued from Sargent, Texas, to Morgan City, Louisiana.
Minor to moderate coastal flooding is expected along portions of the Upper Texas and Louisiana coastlines.
THE NHC SAYS TROPICAL STORM ISAIAS IS ABOUT 520 MILES (840 KM) SOUTH-SOUTHWEST OF THE MOUTH OF THE MISSISSIPPI RIVER, WITH MAXIMUM SUSTAINED WINDS OF 50 MPH (85 KM/H).
THE NHC SAYS NOAA HURRICANE HUNTERS HAVE FOUND TROPICAL STORM ISAIAS GATHERING STRENGTH, WITH SOME STRENGTHENING FORECAST OVER THE NEXT 48 HOURS AND ISAIAS EXPECTED TO BECOME A HURRICANE ON THURSDAY.
The NHC Deputy Director Jamie Rhome will provide a LIVE update on Tropical Depression Two located in the northeastern Gulf around 11:45 AM EDT today July 19, 2026. Please join us on Facebook Live and the NHC YouTube Page at: