textproduct: Charleston

WHAT HAS CHANGED

All sections have been updated.

KEY MESSAGES

- 1) Heat will remain a concern through the middle of the week.

- 2) Some strong to severe thunderstorms are possible each afternoon this week.

AVIATION /06Z MONDAY THROUGH FRIDAY/

06Z TAFs: VFR. There could be some isolated to maybe scattered showers and thunderstorms along the sea breeze this afternoon and early evening. However, the probabilities of direct impacts to the TAF sites is too low to mention with this set of TAFs.

Extended Aviation Outlook: VFR conditions expected at all terminals Tuesday through Thursday, although limited impacts are possible with isolated showers and thunderstorms during afternoon hours. Chances for afternoon shower/thunderstorms increase this weekend, which could result in TEMPO flight restrictions at all terminals.

MARINE

Today and Tonight: The combination of High pressure over the northern Gulf and surface troughing over the Southeast U.S. will yield a typical summertime wind pattern over our coastal waters. Expect winds to gradually back into this afternoon. The strongest winds will be later this afternoon, especially along the land/sea interface associated with the sea breeze. Winds should stay elevated this evening and overnight, gradually veering to the west by daybreak Tuesday. Seas will average 2-3 ft within 20 nm and 3-4 ft in the 20-60 nm leg.

Extended Marine: There will be areas of high pressure in the western Atlantic and the northern Gulf, while surface troughing persists over the Southeast United States. The interaction between these synoptic features will support a typical summertime wind pattern with winds/seas that remain below Small Craft Advisory levels. In general, southwest winds should back to a more south direction each day, peaking in speed along the coast due to a sea breeze, then return to southwest during the overnight period. Seas will mainly be in the 2-3 ft range.

CLIMATE

Record High Temperatures:

August 17: KCHS: 102/1954 KCXM: 100/1954 KSAV: 102/1954

August 18: KCHS: 101/1995 KCXM: 97/1995 KSAV: 100/1995

August 19: KCHS: 98/1983 KCXM: 98/1895 KSAV: 99/1900

August 20: KCHS: 97/2005 KSAV: 102/1900

August 21: KCHS: 100/1983 KSAV: 101/1902

Record High Minimum Temperatures:

August 17: KCHS: 80/2017 KSAV: 78/2017

August 18: KCHS: 80/2017 KCXM: 82/2017 KSAV: 78/2010

August 19: KCHS: 79/2010 KCXM: 83/2021 KSAV: 79/1878

August 20: KCHS: 78/2017 KCXM: 82/2017

August 21: KCHS: 79/2010 KCXM: 82/2023 KSAV: 80/1902

August 22: KCHS: 79/2023 KCXM: 82/2014 KSAV: 79/1902

August 23: KCXM: 81/2019 KSAV: 78/2016

CHS WATCHES/WARNINGS/ADVISORIES

GA...Heat Advisory from 11 AM this morning to 8 PM EDT this evening for GAZ087-088-099>101-114-115-137-216-218-238. Extreme Heat Watch from Tuesday morning through Tuesday evening for GAZ216>219-238>241. Extreme Heat Warning from 11 AM this morning to 8 PM EDT this evening for GAZ217-219-239>241. SC...Heat Advisory from 11 AM this morning to 8 PM EDT this evening for SCZ040-042>044-147. Extreme Heat Watch from Tuesday morning through Tuesday evening for SCZ044-045-147>152. Extreme Heat Warning from 11 AM this morning to 8 PM EDT this evening for SCZ045-148>152. MARINE...None.