724 
 WTPZ24 KNHC 230836
 TCMEP4
 
 HURRICANE WILLA FORECAST/ADVISORY NUMBER  13
 NWS NATIONAL HURRICANE CENTER MIAMI FL       EP242018
 0900 UTC TUE OCT 23 2018
 
 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
 NONE.
 
 SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
 A HURRICANE WARNING IS IN EFFECT FOR...
 * SAN BLAS TO MAZATLAN... INCLUDING LAS ISLAS MARIAS
 
 A TROPICAL STORM WARNING IS IN EFFECT FOR...
 * PLAYA PERULA TO SAN BLAS
 * NORTH OF MAZATLAN TO BAHIA TEMPEHUAYA
 
 A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
 SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE NEXT
 6 TO 12 HOURS FOR ISLA MARIAS...AND WITHIN 12 TO 18 HOURS FOR
 MAINLAND MEXICO. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD
 BE RUSHED TO COMPLETION.
 
 A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
 EXPECTED SOMEWHERE WITHIN THE WARNING AREA.
 
 INTERESTS ELSEWHERE ALONG THE COASTS OF WEST-CENTRAL AND
 SOUTHWESTERN MAINLAND MEXICO SHOULD MONITOR THE PROGRESS OF WILLA.
 
 HURRICANE CENTER LOCATED NEAR 20.8N 107.3W AT 23/0900Z
 POSITION ACCURATE WITHIN  15 NM
 
 PRESENT MOVEMENT TOWARD THE NORTH OR 360 DEGREES AT   4 KT
 
 ESTIMATED MINIMUM CENTRAL PRESSURE  945 MB
 MAX SUSTAINED WINDS 115 KT WITH GUSTS TO 140 KT.
 64 KT....... 30NE  30SE  20SW  25NW.
 50 KT....... 50NE  50SE  40SW  50NW.
 34 KT.......110NE 100SE  80SW  90NW.
 12 FT SEAS..150NE 210SE 180SW 180NW.
 WINDS AND SEAS VARY GREATLY IN EACH QUADRANT.  RADII IN NAUTICAL
 MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.
 
 REPEAT...CENTER LOCATED NEAR 20.8N 107.3W AT 23/0900Z
 AT 23/0600Z CENTER WAS LOCATED NEAR 20.6N 107.3W
 
 FORECAST VALID 23/1800Z 22.0N 106.5W
 MAX WIND 100 KT...GUSTS 120 KT.
 64 KT... 30NE  30SE  20SW  20NW.
 50 KT... 60NE  50SE  40SW  40NW.
 34 KT...100NE 100SE  70SW  80NW.
 
 FORECAST VALID 24/0600Z 23.8N 104.5W...INLAND
 MAX WIND  40 KT...GUSTS  50 KT.
 34 KT... 50NE  60SE  40SW  40NW.
 
 FORECAST VALID 24/1800Z 25.8N 102.3W...POST-TROP/REMNT LOW INLAND
 MAX WIND  20 KT...GUSTS  30 KT.
 
 FORECAST VALID 25/0600Z...DISSIPATED INLAND
 
 REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.8N 107.3W
 
 NEXT ADVISORY AT 23/1500Z
 
 $$
 FORECASTER STEWART