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IL- chicago area

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fzus73 klot 010410
mwslot
960 

marine weather statement
national weather service chicago/romeoville il
1110 pm cdt sun apr 30 2017

lmz740>745-777-779-010515-
1110 pm cdt sun apr 30 2017

...strong thunderstorms approaching the waters...

the areas affected include...
  nearshore waters from winthrop harbor to michigan city...
  open waters from winthrop harbor to michigan city out to mid
lake...

at 1109 pm cdt...doppler radar indicated strong 
thunderstorms...capable of producing winds to around 30 knots. these 
thunderstorms were located along a line extending from 23 nm 
southwest of winthrop harbor to 11 nm south of montrose harbor to 18 
nm south of michigan city...moving north at 55 knots.

precautionary/preparedness actions...

mariners can expect gusty winds to around 30 knots...locally higher 
waves...lightning strikes...and heavy downpours. boaters should seek 
safe harbor immediately until these storms pass.

&&

lat...lon 4162 8733 4164 8743 4168 8743 4167 8747
      4170 8751 4183 8760 4189 8762 4189 8760
      4190 8762 4206 8767 4227 8783 4248 8780
      4246 8702 4213 8696 4179 8697 4179 8696
      4172 8691 4163 8716 4162 8732 4161 8732

$$

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