National Weather Service United States Department of Commerce

Heavy Rain and Severe Thunderstorms Possible in the Lower Mississippi Valley & Southeast

A few severe thunderstorms are possible over Texas, the lower Mississippi Valley, and Southeast into Sunday. Locally heavy rainfall and flash flooding may also occur in these areas. Elsewhere, rain and higher elevation snow will develop from Idaho into western Montana by Sunday evening, followed by cooling temperatures and a changeover to snow for most of the northern Rockies by Monday. Read More >

 
Black and white image of radar echoes from the NSSL 10 cm Doppler radar in Norman at 2340Z, April 10, 1979. Credit: NSSL
 
Photo of a TV screen showing the radar reflectivity display of the approaching Wichita Falls supercell. Time is approximate 2330-2340Z, April 10, 1979. Credit: © Doug Peterson
Map of Radar Reflectivity and Mesocyclone Positions of the Wichita Falls, Texas Supercell at 2330Z, April 10, 1979. Credit: Don Burgess, OSF
 
Map of Radar Reflectivity and Mesocyclone Positions of the Wichita Falls, Texas Supercell at 0000Z, April 11, 1979. Credit: Don Burgess, OSF
Color image of radar reflectivity values from the NSSL 10 cm Doppler radar in Norman at 2155Z, April 10, 1979. Credit: NSSL
 
Color image of radar velocity values from the NSSL 10 cm Doppler radar in Norman at 2155Z, April 10, 1979. Note: warm colors indicate outbound velocities and cool colors indicate inbound velocities. Credit: NSSL
Color image of radar reflectivity values from the NSSL 10 cm Doppler radar in Norman at 2209Z, April 10, 1979. Credit: NSSL
 
Color image of radar velocity values from the NSSL 10 cm Doppler radar in Norman at 2209Z, April 10, 1979. Credit: NSSL
Color image of radar reflectivity values from the NSSL 10 cm Doppler radar in Norman at 2216Z, April 10, 1979. Credit: NSSL
 
Color image of radar velocity values from the NSSL 10 cm Doppler radar in Norman at 2216Z, April 10, 1979. Credit: NSSL
Color image of radar reflectivity values from the NSSL 10 cm Doppler radar in Norman at 2309Z, April 10, 1979. Credit: NSSL
 
Color image of radar velocity values from the NSSL 10 cm Doppler radar in Norman at 2309Z, April 10, 1979. Credit: NSSL
Color image of radar reflectivity values from the NSSL 10 cm Doppler radar in Norman at 2322Z, April 10, 1979. Credit: NSSL
 
Color image of radar velocity values from the NSSL 10 cm Doppler radar in Norman at 2322Z, April 10, 1979. Credit: NSSL