Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
230 PM EST Thu Nov 27 2025
Day 1
Valid 16Z Thu Nov 27 2025 - 12Z Fri Nov 28 2025

The probability of rainfall exceeding flash flood guidance is less
than 5 percent.

An instance of urban flash flooding cannot be ruled out across
portions of southeastern Florida this afternoon. An approaching
cold front will trigger a few outflow-driven thunderstorms that may
exhibit relatively slow storm motions due to weak wind fields below
500mb. 1.6 inch PW values and 1000+ J/kg MLCAPE in the pre-frontal
airmass both support robust updrafts with locally heavy rainfall.
A conditional threat will exist for spotty 1 inch/hr rain rates to
impact urban areas between Miami and West Palm Beach. The isolated
and conditional nature of this threat precludes any introduction of
probabilities/risk areas for this outlook.

Cook

Day 1 threat area: www.wpc.ncep.noaa.gov/qpf/94epoints.txt