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Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Fig. 18. Radar base reflectivity from 2206 to 2340 UTC showing convection along an east- to-west oriented segment of Claudette’s outer rainband north of the storm’s center. At least two storms seen in the loop were relatively long lived and displayed evidence of storm scale organization.