Mesoscale Discussion 1389 NWS Storm Prediction Center Norman OK 1102 PM CDT Mon Aug 03 2020 Areas affected...Eastern North Carolina...Southeast Virginia Concerning...Tornado Watch 414... Valid 040402Z - 040600Z The severe weather threat for Tornado Watch 414 continues. SUMMARY...The tornado threat will likely continue across much of eastern North Carolina over the next few hours. The tornado threat is expected to increase across southeast Virginia where a new tornado watch will likely be needed. DISCUSSION...The center of Hurricane Isaias is about 20 statute miles southwest of Wilmington, North Carolina. Two bands of heavy rainfall are present around the center. The first and southern most-band is located in southern North Carolina near Wilmington. The second and northern-most band is located in eastern North Carolina near Morehead City, extending northwestward to about 75 miles inland. The Morehead City WSR-88D VWP shows very strong low-level shear with 0-1 km storm relative helicity near 600 m2/s2. This will be favorable to continue a tornado threat with the more discrete cells across eastern North Carolina late this evening into the early overnight period. The tornado threat should spread into southeast Virginia as low-level shear and theta-e increases. A new tornado watch will be necessary across parts of southeast Virginia over the next few hours. ..Broyles/Hart.. 08/04/2020 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...AKQ...MHX...RAH...ILM... LAT...LON 37877668 37777760 36897813 35967840 34967817 34607766 34507687 34627617 34957556 35437528 36177549 36967571 37647612 37877668Read more
from SPC Forecast Products http://www.spc.noaa.gov/products/md/md1389.html
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