Heavy Rain Continues in Florida; Cold Front Brings Thunderstorms and Showers to Central US

Scattered areas of heavy rain continue to produce isolated flash flooding across the Florida peninsula. Anomalous moisture will combine with a cold front and will bring heavy rain and scattered flash flooding across the Mid-South, Ohio and Tennessee Valleys today and Tuesday. Above average temperatures will continue to be found ahead of the cold front from the Midwest to the Northeast. Read More >

Overview

Purpose – The Winter Storm Severity Index (WSSI) has been developed to have a two-fold focus. The first is for use as a tool to assist NWS operational forecasters in maintaining situational awareness of the possible significance of weather-related impacts based upon the current official forecasts. The second is to enhance communication to external partners, media and the general public of the expected severity of potential societal impacts due to expected winter hazards and their distribution.

Audience – The WSSI is intended for operational use by NWS Weather Forecast Offices (WFOs) and Weather Prediction Center (WPC) staff as an enhancement to decision support services, as well as for use and evaluation by NWS partners, the media, and the general public.

Source – Utilizes NWS forecast information, along with various non-meteorological and climatological data. Updates every 2 hours and because it uses forecast information, will not include recent PAST impacts (i.e. looks ahead, not back).

The index uses a six (6) level impact scale.

Days 1-3 Overall Impacts