USA National Weather Service update

Potential Tropical Cyclone One (PTC1) is expected to bring significant impacts to southern Texas today.
Heavy Rain and Flash Flooding: Rainfall totals of 5 to 10 inches are anticipated, with maximum possible totals reaching 15 inches.
Gusty Winds: Tropical-storm-force winds are expected well ahead of PTC1’s center, moving onshore and inland.
Coastal Front: This may enhance heavy rainfall just inland from the Texas coast.
Track and Landfall: PTC1 is likely to gain tropical storm status before making landfall early Thursday, with the storm’s center steering westward toward northern Mexico.
Post-Landfall: Winds will weaken rapidly over northern Mexico, and the heaviest rain will taper off early Friday.
Secondary Impacts: Moisture from TS1 may trigger showers and thunderstorms across the Four Corners region by Thursday and into Friday, with some moisture reaching northeastern Florida and coastal Georgia by Thursday night or Friday morning.

Affected Regions: Midwest, Great Lakes, Ohio Valley, Northeast, and Mid-Atlantic.
Temperature Extremes: Daily and monthly record high temperatures and warm overnight lows are likely.
Heat Index: Values are expected to peak between 100 to 105 degrees.
Health Advisory: People without reliable air conditioning should find ways to cool down, as prolonged heat can lead to dangerous conditions indoors.

Northern Plains to Upper Midwest: Thunderstorm and heavy rain activity will decrease today as the upper-level energy and low-pressure system move into Canada.
Reactivation: Another piece of upper-level energy will interact with a stationary front late Thursday, leading to renewed heavy rain and thunderstorms from the northern Plains to the upper Midwest into Friday morning.
Extended Impact: Scattered thunderstorms will also affect areas further east, including the Great Lakes and interior New England.

Texas and Mexico: Heavy rain and gusty winds today into Thursday, tapering off early Friday.
Midwest to Northeast: Persistent heat wave with potentially record-breaking temperatures and high heat index values.
Northern Plains to Upper Midwest: Decreased activity today, with reactivation of thunderstorms and heavy rain late Thursday into Friday.
Four Corners and Atlantic Coast: Increased showers and thunderstorms due to tropical moisture from TS1 by late week.

Stay updated with local weather alerts and take necessary precautions to stay safe, especially in areas affected by extreme weather conditions.