Department of Commerce • National Oceanic & Atmospheric
Department of Commerce • National Oceanic & Atmospheric Administration • National Weather Service NATIONAL WEATHER SERVICE INSTRUCTION 10-601 JUNE 9, 2010 Operations and Services Tropical Cyclone Weather Services Program, NWSPD 10-6 TROPICAL CYCLONE PRODUCTS NOTICE: This publication is available at: http://www.nws.noaa.gov/directives/. OPR: W/OS21 (T. Schott) Certified by: W/OS21 (T. Pierce) Type of Issuance: Emergency SUMMARY OF REVISIONS: This directive supersedes NWS Instruction 10-601, dated July 27, 2009. The following revisions were made to this directive: Sec 1.1 Updates TCP for new Storm Summary Block Sec 1.1 The Aviation Tropical Cyclone Advisory, Tropical Cyclone Watch/Warning Graphic, Cumulative Wind Distribution, Tropical Cyclone Wind Field Graphic, Maximum Wind Speed Probability Table, and Tropical Cyclone Storm Surge Probabilities products were moved from Section 6 and deemed more appropriate for inclusion in Section 1. Sec 1.1.3.3.b Revises NHC watch and warning issuance times Sec 6.3.3.2 Begins Graphical Tropical Weather Outlook for CPHC, and provides NHC and CPHC probabilistic genesis forecasts to nearest 10 percent Sec 6.12 Begins CPHC Tropical Cyclone Surface Wind Field graphic Sec 7.1.3.4 Adds order in watches and warnings listed in Overview Block of the Hurricane Local Statement (HLS) and adds WINDS AND SEAS and TORNADOES AND WATERSPOUTS in marine segments of HLS Changes to product examples in Appendix: Updates Tropical Weather Outlook (TWO) for NHC and CPHC, for probabilistic genesis forecasts to nearest 10 percent Modifies example of Special Tropical Weather Outlook Adds new TCU product examples Updates to all TCP products (Tropical Cyclone Public Advisory, Tropical Cyclone Intermediate Public Advisory, Tropical Cyclone Special Public Advisory, Subtropical Cyclone Public Advisory) for the new Storm Summary block NWSI 10-601 JUNE 9, 2010 Adds new TCM product example Updates HLS example for 2010 signed May 26, 2010 David B.
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