National Weather Service United States Department of Commerce

Locally Heavy Rainfall Possible Over the Four Corners; Critical Fire Weather Conditions in the Great Basin

Monsoon moisture will result in locally heavy showers and thunderstorms over the Four Corners region, which could lead to flash flooding. While, critical fire weather threats are expected for much of the Great Basin, from dry and windy conditions. Finally, Tropical Cyclone Humberto remains well offshore of the Southeast, but rip currents and heavy surf are expected from Florida to the Carolinas. 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.