FGUS72 KMFL 210659 ESFMFL FLC011-021-043-051-086-087-099-211900- Hydrologic Outlook National Weather Service Miami FL 259 AM EDT Thu Mar 21 2024 ...Heavy Rainfall Possible Friday Into Early This Weekend... A surface low is forecast to develop over the Gulf of Mexico sometime on Friday and move eastward across portions of the Florida Peninsula Friday night into Saturday morning. A warm front will lift north of the area early on Friday, with a cold front crossing the area later in the day. This will lead to couple of rounds of potential heavy rain and thunderstorms over South Florida during this time frame. The forecast soundings are also showing that the precipitable water values will be around 1.6 to 1.8 inches which is above the 90th percentile and near the maximum values for this time of year. This means that heavy rainfall is also possible with the rounds of showers and thunderstorms. Current forecast calls for 3 to 6 inches of rain, with locally high amounts possible, especially along and south of Alligator Alley. While South Florida has been dry the past week, heavy rainfall may still lead to instances of flooding, especially across urban and poor drainage locations. $$