Watches, Warnings & Advisories for Sunflower Co.

Tuesday, April 26, 2011

WX Conf Call Notes - 4/26/2011

  • Outbreak of severe storms over next 36 hours 
  • Several rounds possible over Southeast Arkansas, Northwest Mississippi and Northeast Louisiana starting late this afternoon
  • Most of the rest of the area will not see severe weather until late tonight or Wednesday 
  • Strong, long-track tornadoes possible 
  • Weather set-up is similar to that of storm/tornado outbreak of April 15 weekend.
The tornado risk is greatest tonight for Delta counties (Bolivar, Washington, Sunflower, Leflore, Humphreys, Sharkey, Issaquena, Tallahatchie, Coahoma, Quitman).  The Storm Prediction Center has placed parts of Northwest Mississippi and east-central Arkansas under a "High Risk" for severe thunderstorms and tornado development.  The "high risk" terminology is only used a scant few times per year, so this is significant.  Timing for storms is uncertain, but expect development to begin after 3:00 PM today for western areas, and lasting through the night.  The timing uncertainty is due to the possibility that discreet supercell storms could develop ahead of an organized line of storms.
 
The tornado risk area moves east during the day Wednesday, for areas generally along and east of the I-55 corridor (Leflore, Carroll, Grenada, Holmes, Yazoo and areas east of those).
 
A flash flood watch is in effect for the Highway 82 corridor in the Delta counties through Wednesday afternoon.  Additionally the Mississippi River will be rising over the next couple of weeks, thus affecting backwater areas such as the Sunflower and Yazoo rivers and their related drainage areas.
 


 

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