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Mesoscale Discussion 1034
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   MESOSCALE DISCUSSION 1034
   NWS STORM PREDICTION CENTER NORMAN OK
   0458 AM CDT TUE JUN 17 2014

   AREAS AFFECTED...FAR S WI/N IL

   CONCERNING...TORNADO WATCH 310...

   VALID 170958Z - 171100Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 310 CONTINUES.

   SUMMARY...ENHANCED RISK FOR DAMAGING WINDS AND BRIEF TORNADOES
   EVIDENT WITH FAST-MOVING MCV ALONG THE WI/IL BORDER.

   DISCUSSION...BOWING MCV FROM GREEN COUNTY WI TO OGLE COUNTY IL HAS
   ACCELERATED ITS FORWARD SPEED TO AROUND 60-65 KT. CURRENT
   EXTRAPOLATION WOULD CROSS THE I-94 CORRIDOR NEAR 1130Z. KMKX HAS
   SAMPLED WIDESPREAD INBOUND VELOCITIES AOA 50 KT AOA 2500 FT AGL.
   GIVEN THE RAPID MOTION OF THE LINE AMIDST 35-45 KT 0-1 KM
   SHEAR...SEVERE WIND GUSTS WOULD APPEAR PROBABLE WITHIN THE BOWING
   PORTION OF THE MCV...WITH TRANSIENT MESOVORTICES OCCASIONALLY
   TIGHTENING UP WITHIN THE COMMA-HEAD.

   ..GRAMS.. 06/17/2014


   ATTN...WFO...GRR...LOT...MKX...

   LAT...LON   43298802 43238630 42878604 42578605 42178642 41878741
               41828844 41998899 42608916 42878921 43078906 43298802 

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Page last modified: June 17, 2014
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