Periods of showers and thunderstorms will figure somewhat prominently into Saturday’s forecast as a low pressure system moves across the area. The feed of moisture and shower and thunderstorm coverage should help keep highs from getting into the 90s, though even upper 80s combined with rich mid-70s dewpoints yield heat indices in the upper 90s. The tropical moisture feed could lead to some very heavy rain in some spots, with nuisance flooding possible where the heaviest rains set up. It won’t rain all day in any one location, either, but expect interruptions to outdoor activities.
Sunday should be a little quieter rain-wise (at least to start) as the disturbance lifts away. This will let temperatures head well into the mid-90s, yielding heat indices 105-110°. Scattered showers and thunderstorms should develop in the afternoon and evening hours, and there is a small chance of a thunderstorm complex trying to make inroads into the area later in the evening, so be ready to dodge those if being out Sunday is in your plans. All in all, no washout, but just be flexible.
Heat indices head back into the danger zone for Friday and the weekend as an uptick in moisture within onshore flow sends dewpoints up into the mid-to-upper 70s. This will also help in bringing scattered to numerous showers and thunderstorms ashore across the area, perhaps as early as the morning, pressing inland with time with the seabreeze as the day goes on, much like Thursday. We’ll see a similar setup on Saturday, while Sunday should feature a more standard afternoon/evening thunderstorm configuration. The good news is that rain will not hang out terribly long in any one location, and should represent nothing more than a brief inconvenience.
Highs on Friday top out around 90° and in the low 90s on Saturday, while air temperatures warm into the mid-90s on Sunday. Heat indices will head above 105° each afternoon thanks to the aforementioned tropical air. Sunday could feature heat indices approaching 110°, which could lead to a heat advisory. Be cautious if you are out and about during the heat of the afternoons over the next few days!
Standard late-July weather continues for Thursday. We’ll see primarily partly cloudy skies across the area with highs topping out in the low 90s ahead of the seabreeze. Heat indices should top out around 103° or so, with some locally higher values closer to the coast possible for a brief time as the seabreeze moves inland. Said seabreeze should be responsible for a few showers and thunderstorms during the afternoon hours, moving inland with time. Some locally heavy rainfall and gusty winds will be possible in the strongest storms, but they shouldn’t last terribly long at any one location.
Not too much to write home about in the weather department for the rest of the work week — just more in the way of heat, humidity, and a slight uptick in showers and storms as we head toward Friday.
Air temperature-wise, Wednesday will be the warmest day of the rest of the work week with highs topping out in the mid-90s. However, drier mid-level air will mix down to the surface during the heat of the day, and this will help keep heat indices around 100-101°. (Not great, but it could be worse.) The aforementioned dry mid-levels should keep most, if not all, shower and storm activity at bay, though you can never truly rule any stray shower or storm out during this point of the year.
Moisture starts to return Thursday, and this manifests itself with a little higher heat index in the afternoon — approaching 105° — and a slightly better (but still low) chance of seabreeze thunderstorms. Friday could see a little better coverage of afternoon thunderstorms as heat indices top out over 105° at peak heating. (Remember, heat advisory criteria for July 1 and beyond is 110° for two hours.) Overall, there’s nothing in this forecast that’s terribly out of bounds for this point in the year — just mind the heat and be ready to head inside if a thunderstorm gets close.
