National Weather Service United States Department of Commerce

Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >


28-day Mississippi River Forecast Plots

 

These experimental plots were created as a way to display long range (28-day) forecasts which became part of daily operations at LMRFC in November of 2016. The official forecast (2 days of QPF) is displayed along with an experimental, raw model NAEFS-based forecast (16 days of QPF).

 


NEXRAD ZR Relationship Table

 

This table displays the radar reflectivity to rain rate relationships being used by each of the NEXRAD radar sites in the LMRFC area. Local weather forecast offices will change this relationship seasonally and by rainfall event to help improve radar estimates of rainfall.

 


MRMS Rainfall Diagnostics

 

Plots displaying diagnostics for the MRMS radar-only rainfall estimate product. The plots were developed as a tool for monitoring biases in radar-only products.