WHAT HAS CHANGED

All Key Messages and Sections were updated.

KEY MESSAGES

- 1) Hot temperatures and dry conditions will persist this Independence Day.

- 2) Above normal temperatures expected to impact the area through the upcoming week. Humidity will increase on Sunday and remain elevated into next week, especially along the coast. Heat Advisories could be needed each afternoon through much of next week.

- 3) Typical summertime convection returns Sunday and will persist into next week.

DISCUSSION

KEY MESSAGE 1: Hot temperatures and dry conditions will persist this Independence Day.

Upper level ridging holds tight across the region this Independence Day, allowing quite conditions to prevail. In regard to temperatures, latest observations show values in the low to mid 90s under mostly sunny skies. With dewpoints in the upper 60s to mid 70s, have already seen some heat index values approach 105 degrees. While these values may increase a bit more in the coming hours, think the duration and overall coverage should remain limited enough to forgo any heat headlines at this time. Nonetheless, we encourage folks to take precautions with any outdoor activities today. This can include taking breaks in the shade/AC, applying sunscreen frequently, staying hydrated, and checking on vulnerable populations like children and elderly. Otherwise, look for mostly clear skies to prevail tonight. Lows will remain quite mild, as temperatures only fall into the mid to upper 70s.

KEY MESSAGE 2: Above normal temperatures expected to impact the area through the upcoming week. Humidity will increase on Sunday and remain elevated into next week, especially along the coast. Heat Advisories could be needed each afternoon through much of next week.

Upper level ridging holds tight across the region this Independence Day, allowing quite conditions to prevail. In regard to temperatures, latest observations show values in the low to mid 90s under mostly sunny skies. With dewpoints in the upper 60s to mid 70s, have already seen some heat index values approach 105 degrees. While these values may increase a bit more in the coming hours, think the duration and overall coverage should remain limited enough to forgo any heat headlines at this time. Nonetheless, we encourage folks to take precautions with any outdoor activities today. This can include taking breaks in the shade/AC, applying sunscreen frequently, staying hydrated, and checking on vulnerable populations like children and elderly. Otherwise, look for mostly clear skies to prevail tonight. Lows will remain quite mild, as temperatures only fall into the mid to upper 70s.

KEY MESSAGE 3: Typical summertime convection returns Sunday and will persist into next week.

Despite persistent upper ridging, PWATs are forecast to increase to 2 inches or greater, supporting the return of a more typical summertime convective pattern. Scattered showers and thunderstorms will be possible each day, with the greatest coverage during the afternoon and early evening as instability peaks. Environmental conditions will favor mainly pulse-type convection, although a few storms could become strong to severe each day with damaging wind gusts as the primary hazard.

AVIATION /18Z SATURDAY THROUGH THURSDAY/

VFR conditions continue to prevail, with southerly winds becoming light and variable overnight.

Extended Aviation Outlook: Brief flight restrictions are possible in afternoon showers/thunderstorms late weekend into next week.

MARINE

Through Tonight: Tranquil conditions continue under sfc high pressure, with south/southwesterly winds up to 15 kts, and seas between 2 to 3 feet.

Sunday through Thursday: The coastal waters will be positioned between high pressure offshore and a trough of low pressure inland through the period. Wind speeds are forecast to stay below Small Craft Advisory criteria through the period, however gusts in the low 20 kt range are possible, especially in the afternoon and evenings. Seas will average 2-4 feet.

CLIMATE

Record High Temperatures:

July 4: KCHS: 98/2023

July 5: KSAV: 100/1902

July 7: KCHS: 99/1954

Record High Minimum Temperatures:

July 5: KCHS: 78/2017 KCXM: 82/2016 KSAV: 78/2016

July 6: KCHS: 79/1990 KCXM: 82/2024 KSAV: 78/2024

July 7: KCHS: 80/2017 KCXM: 82/2022 KSAV: 80/1883

July 8: KCXM: 83/2016 KSAV: 80/1990

July 9: KCHS: 80/1998 KSAV: 80/1883

July 10: KCHS: 81/1986 KCXM: 82/1986

CHS WATCHES/WARNINGS/ADVISORIES

GA...None. SC...None. MARINE...None.