FIRST ALERT: Heat Advisory in place Thursday
MYRTLE BEACH, SC (WMBF) - The heat index will climb into dangerous territory on Thursday as the typical summer weather pattern continues.
Temperatures on Thursday will climb into the lower 90s. Extremely high humidity will send the heat index soaring into the dangerous category.
A heat advisory is in effect Thursday for heat index values as high as 105 to 108 from midday through the early evening.
The high heat and humidity will once again lead to pop-up thunderstorms developing in the afternoon and evening. Rain chances are 30%.
The typical summer pattern continues on Friday with temperatures once again climbing to near 90. Another round of pop up storms is likely with rain chances again at 30% through the afternoon and evening. The heat index will climb to 100 to 105 through the day.
Slightly drier air in the upper atmosphere will start to limit the risk of thunderstorms by the weekend. Rain chances of 20% on Saturday will drop to 0% by Sunday and will continue into early next week.
Despite the drying in the upper atmosphere, it will remain very humid at the surface. Afternoon temperatures will climb into the upper 80s to lower 90s with the heat index remaining between 100 and 105.
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