Revisions made to EPAC HURDAT: Storm #6/1957 2008 Revision 02230 09/17/1957 M= 2 6 SNBR= 67 NOT NAMED XING=1 02240 09/18*1701013 75 0X1741017 75 0X1781020 75 0* 0 0 0 0* 02240 09/18*1701013 75 0X1741017 75 0X1781020 75 0X1821023 75 0 Previous track just offshore. New position is to bring the hurricane inland per Eds book (NHC resource) and Mariners Weather Log (MWL). Storm #10/1957 2008 Revision 02330 10/01/1957 M= 6 10 SNBR= 71 NOT NAMED XING=1 02335 10/01* 0 0 0 0* 0 0 0 0*1741194 75 0*1751199 75 0* 02340 10/02*1801204 75 0*1891209 75 0*1981212 75 0*2031206 75 0* 02345 10/03*2081197 75 0*2161192 75 0*2241187 75 0*2301170 75 0* 02350 10/04*2361152 75 0*2391145 75 0*2421137 75 0*2501128 75 0* 02355 10/05*2581119 75 0*2641112 75 0*2701105 75 0X2941091 75 0* 02355 10/05*2581119 75 0*2641112 75 0*2701105 75 0X2941091 25 0* 02360 10/06X3221075 75 0X3311065 75 0X3281059 75 0* 0 0 0 0* 02360 10/06L3221075 20 0L3311065 20 0L3281059 20 0* 0 0 0 0* Hurricane erroneously tracked well inland over very high mountains and throughout southwestern USA. Track better reflects likely reality of remnant low. Storm #11/1957 2008 Revision 02370 10/17/1957 M= 5 11 SNBR= 72 NOT NAMED XING=0 02375 10/17* 0 0 0 0* 0 0 0 0*1291029 75 0*1471035 75 0* 02380 10/18*1591042 75 0*1651052 75 0*1701060 75 0*1741062 75 0* 02385 10/19*1791063 75 0*1851063 75 0*1911063 75 0*1981063 75 0* 02390 10/20*2051063 75 0X2151062 75 0X2251061 75 0X2351061 75 0* 02390 10/20*2051063 75 0 0 0 0 0 0 0 0 0 0 0 0 0* 02395 10/21X2451060 75 0X2551057 75 0X2651050 75 0* 0 0 0 0* 02395 10/21 Delete all points Recommend deleting this hurricane landfall. MWL says the hurricane rapidly dissipated before landfall. Also category 3 hurricane made landfall one day later in the same area. Original MWL never shows system inland. Storm #11/1958 2008 Revision 02800 09/30/1958 M= 7 11 SNBR= 85 NOT NAMED XING=1 02805 09/30*1561003 75 0*1581008 75 0*1601013 75 0*1611018 75 0* 02810 10/01*1631023 75 0*1651028 75 0*1671033 75 0*1691039 75 0* 02815 10/02*1701045 75 0*1721049 75 0*1741054 75 0*1791062 75 0* 02820 10/03*1861070 75 0*1931076 75 0*2001082 75 0*2081089 75 0* 02825 10/04*2191095 75 0*2341099 75 0*2501103 75 0*2641107 75 0* 02830 10/05*2791110 75 0X2941112 75 0X3101112 75 0X3231110 75 0* 02830 10/05*2791110 75 0X2941112 45 0X3101112 25 0L3231110 20 0* 02835 10/06X3341104 75 0X3391089 75 0X3381062 75 0* 0 0 0 0* 02835 10/06L3341104 20 0L3391089 20 0L3381062 20 0* 0 0 0 0* Change to remove hurricane intensity over southwestern USA and add a more reasonable weakening rate over high terrain. Storm #10/1959 2008 Revision 03165 09/04/1959 M= 8 10 SNBR= 97 NOT NAMED XING=1 03170 09/04*132 940 75 0*135 955 75 0*138 969 75 0*142 984 75 0* 03175 09/05*147 997 75 0*1541007 75 0*1611016 75 0*1711026 75 0* 03180 09/06*1791035 75 0*1801039 75 0*1801041 75 0*1801048 75 0* 03185 09/07*1801054 75 0*1811060 75 0*1831066 75 0*1851072 75 0* 03190 09/08*1881077 75 0*1921080 75 0*1961082 75 0*2011083 75 0* 03195 09/09*2091085 75 0*2191090 75 0*2291096 75 0*2401102 75 0* 03200 09/10*2501109 75 0*2561116 75 0*2601124 75 0*2681133 75 0* 03205 09/11*2791143 75 0X2961151 75 0X3181159 75 0* 0 0 0 0* 03205 09/11*2791143 75 0X2961151 45 0X3181159 25 0* 0 0 0 0* Hurricane over hilly terrain of Baja California for 36 hours and couldnt have maintained hurricane intensity. System dissipates before reaching southern California and best track change smoothes the dissipation stage. Storm #15/1959 2008 Revision 03335 10/23/1959 M= 7 15 SNBR= 102 NOT NAMED XING=1 03340 10/23*126 967 75 0*127 976 75 0*130 985 75 0*135 993 75 0* 03345 10/24*1401000 75 0*1451008 75 0*1501016 75 0*1561023 75 0* 03350 10/25*1611029 100 0*1651034 100 0*1681039 110 0*1701045 110 0* 03355 10/26*1721052 120 0*1751056 120 0*1781058 120 0*1831057 120 0* 03360 10/27X1881053 120 0X1931048 120 0X1971044 140 958X2011040 45 0* 03360 10/27X1881053 120 0X1931048 140 958X1971044 140 958X2011040 45 0* 03365 10/28X2051037 45 0X2101033 25 0X2161029 25 0X2221026 25 0* 03370 10/29X2281023 25 0X2341021 25 0X2401020 25 0* 0 0 0 0* Change to make the Great Hurricane of 1959 become a Cat 5 over water instead of over land. Kept intensity inland the same because of 135+ kt wind report in Manzanillo. May have been stronger than 140 kt offshore. Storm #7/1960 HYACINTH 2008 Revision 03610 10/21/1960 M= 3 7 SNBR= 109 HYACINTH XING=1 03610 10/21/1960 M= 3 7 SNBR= 109 HYACINTH XING=0 03615 10/21* 0 0 0 0* 0 0 0 0*1831052 75 0*1891060 75 0* 03620 10/22*1971066 75 0*2091071 75 0*2191073 75 0X2241073 75 0* 03625 10/23X2281072 75 0X2311071 75 0X2341070 75 0* 0 0 0 0* 03625 10/23X2281072 75 0X2311071 45 0X2341070 25 0* 0 0 0 0* Recommend deleting as a landfall. MWL states that Hyacinth rapidly dissipated as it approached the coast. Original track never brought it inland, even after extrapolation in the 1970s. Suggested changes show a smooth dissipation and keep with general intensity assignments of the era. Storm #1/1961 IVA 2008 Revision 03635 06/09/1961 M= 4 1 SNBR= 110 IVA XING=1 03640 06/09* 0 0 0 0* 0 0 0 0*1351000 75 0*1401008 75 0* 03645 06/10*1461014 75 0*1531017 75 0*1601019 75 0*1681020 75 0* 03650 06/11*1761020 75 0X1871019 75 0X1981017 75 0X2051009 75 0* 03650 06/11*1761020 75 0X1871019 45 0X1981017 35 0X2051009 25 0* 03655 06/12X208 993 75 0* 0 0 0 0* 0 0 0 0* 0 0 0 0* 03655 06/12L208 993 20 0* 0 0 0 0* 0 0 0 0* 0 0 0 0* This is to fix erroneous maintenance of hurricane conditions over very high terrain of central Mexico. EP051962 UNNAMED 2013 Revision Replacing value at: 1962-08-29 06Z was 18.0N 140.0W with 18.0N 141.0W Typographical error Storm #9/1962 DOREEN 2008 Revision 04150 10/01/1962 M= 5 9 SNBR= 128 DOREEN XING=1 04155 10/01*1391040 75 0*1401046 75 0*1431052 75 0*1471057 75 0* 04160 10/02*1511061 75 0*1561065 75 0*1611068 75 0*1681069 75 0* 04165 10/03*1751070 75 0*1841071 75 0*1921073 75 0*2021080 75 0* 04170 10/04*2111090 75 0*2281093 75 0*2461088 75 0*2651076 75 0* 04170 10/04*2111090 75 0*2281093 75 0*2461088 75 0*2651076 45 0* 04175 10/05*2801060 75 0* 0 0 0 0* 0 0 0 0* 0 0 0 0* 04175 10/05*2801060 25 0* 0 0 0 0* 0 0 0 0* 0 0 0 0* This change is to provide a more reasonable rate of dissipation over the high terrain of Mexico. CP011963 UNNAMED 2013 Revision Replacing value at: 1963-08-07 00Z was 22.7N 173.3W with 21.7N 173.3W Typographical error Storm #1/1964 NATALIE 2008 Revision 04490 07/06/1964 M= 3 1 SNBR= 137 NATALIE XING=1 04495 07/06*1681049 45 0*1821057 45 0*1961062 45 0*2091064 45 0* 04500 07/07*2221066 45 0X2341068 45 0X2461071 45 0X2621076 45 0* 04500 07/07*2221066 45 0X2341068 45 0X2461071 45 0X2621076 25 0* 04505 07/08X2821083 45 0* 0 0 0 0* 0 0 0 0* 0 0 0 0* 04505 07/08L2821083 20 0* 0 0 0 0* 0 0 0 0* 0 0 0 0* This change is also to provide a more reasonable rate of dissipation over the high terrain of Mexico. Storm #10/1967 KATRINA 2008 Revision 05985 08/30/1967 M= 5 10 SNBR= 174 KATRINA XING=1 05990 08/30*1781072 45 0*1821080 45 0*1891088 45 0*1991097 45 0* 05995 08/31*2091107 75 0*2191114 75 0*2291118 75 0*2461113 75 0* 06000 09/01*2631110 75 0*2721116 75 0*2811124 75 0*2901132 75 0* 06005 09/02*3001141 75 0*3091146 75 0*3191146 75 0*3271134 45 0* 06005 09/02*3001141 75 0*3091146 75 0*3191146 45 0*3271134 25 0* 06010 09/03X3321108 45 0* 0 0 0 0* 0 0 0 0* 0 0 0 0 06010 09/03L3321108 20 0* 0 0 0 0* 0 0 0 0* 0 0 0 0 This is to take out the hurricane over Arizona that is currently in the best track. MWL says that its remnants made it into Arizona, not a full hurricane. It is highly unlikely that it kept hurricane strength over the southwestern US. Recommend weakening to TS over Arizona and show a typical dissipation thereafter. Storm #15/1967 OLIVIA 2008 Revision 06250 10/06/1967 M=10 15 SNBR= 179 OLIVIA XING=1 06290 10/13*2231123 45 0*2321118 45 0*2401113 45 0*2531108 75 0* 06295 10/14*2651110 75 0*2691116 75 0*2701122 75 0X2711127 45 0* 06295 10/14*2651110 90 0*2691116 110 0*2701122 75 0X2711127 45 0* 06300 10/15X2711132 25 0* 0 0 0 0* 0 0 0 0* 0 0 0 0* 06305 HR Change is based on a ship report of 939 mb. In addition, wind report of 110 kt matches approximate pressure/wind relationship that confirms the ship. Recommend Category 3 for hurricane landfall based on ship and land station (all MWL). Storm #18/1968 SIMONE 2008 Addition This storm is missing from the best track file. Here is a suggested best track: 0xxxx 10/18* 0 0 0 0* 0 0 0 0* 0 0 0 0*135 915 45 0* 0xxxx 10/19*138 918 45 0*143 922 45 0*147 926 35 0* 0 0 0 0* Also add landfall x=1 because system crossed the coast as a TS For whatever reason, Simone 1968 is not in the best track, despite its existence chronicled in many publications. The track of the system is based off the 1968 Navy Annual Tropical Cyclone Report, Annex A. No intensities are noted in the Navy report. However the 1968 MWR article says that winds of 40 to 45 kt were reported as the ship was (apparently) moving through the center. MWL mentions the same short-lived storm, though it has the ship reporting 40-50 kt maximum winds and a pressure of 1005.4 mb in the center. 45 kt is chosen as the maximum intensity, which better fits the relatively high pressure of 1005 mb reported than 50 kt. 45 kt is also a useful value because of the uncertainty involved since it is the value of generic tropical storms in the EPAC database. Storm #16/1974 ORLENE 2008 Revision 11100 09/21/1974 M= 4 16 SNBR= 288 ORLENE XING=1 11105 09/21*158 975 30 0*161 980 30 0*162 988 40 0*1651007 40 0* 11110 09/22*1691026 40 0*1741037 40 0*1801046 40 0*1871052 50 0* 11115 09/23*1941058 50 0*1991063 50 0*2061067 55 0*2221071 60 0* 11115 09/23*1941058 50 0*1991063 50 0*2061067 65 0*2221071 75 0* 11120 09/24*2401070 80 0X2551062 25 0X2701045 25 0* 0 0 0 0* 11120 09/24*2401070 90 0X2551062 25 0X2701045 25 0* 0 0 0 0* Change is based on a reconnaissance report of 110 kt (measured) by an Air Force plane. The level is unknown so used a conservative 80% reduction to reach a landfall intensity of 90 kt. MWL states the hurricane rapidly intensified right before landfall. EP071976 GWEN 2013 Revision Replacing value at: 1976-08-14 06Z was 24.0N 136.0W with 24.0N 137.0W Typographic error EP081976 HYACINTH 2013 Revision Replacing value at: 1976-08-08 18Z was 13.7N 108.9W with 13.7N 107.9W Typographic error EP101978 JOHN 2013 Revision Replacing value at: 1978-08-25 00Z was 16.3N 145.2E with 16.3N 146.2W Typographical error EP131978 MIRIAM 2013 Revision Replacing value at: 1978-08-29 18Z was 16.3N 149.2W with 15.3N 149.2W Typographical error Storm #11/1981 KNUT 2008 Revision 15235 09/19/1981 M= 3 11 SNBR= 384 KNUT XING=1 15240 09/19*1551045 30 0*1581060 35 0*1611074 45 0*1671088 50 0* 15245 09/20*1761095 50 0*1861099 55 0*1971102 55 0*2081106 55 0* 15250 09/21*2161094 50 0*2251081 45 0*2331070 40 0* 0 0 0 0* 15250 09/21*2161094 50 0*2251081 45 0*2331070 40 0X2411059 30 0* This adjustment is to move the track inland based on MWL and extrapolation. For the 1981-1987 period, many storms simply stopped near or offshore because Redwood City stopped writing advisories on them before moving inland. Changes are cosmetic to show actual landfalls. Storm #1/1983 ADOLPH 2008 Revision 16540 05/21/1983 M= 8 1 SNBR= 412 ADOLPH XING=1 16545 05/21* 71 915 25 0* 74 927 25 0* 78 938 30 0* 81 947 40 0* 16550 05/22* 84 955 45 0* 87 967 45 0* 88 977 45 0* 91 987 50 0* 16555 05/23* 94 994 55 0* 981002 55 0*1001010 55 0*1041018 65 0* 16560 05/24*1081026 80 0*1141032 95 0*1201039 95 0*1251045 95 0* 16565 05/25*1301050 95 0*1341054 90 0*1391059 85 0*1441061 80 0* 16570 05/26*1481060 65 0*1521058 60 0*1581055 60 0*1651054 55 0* 16575 05/27*1741052 50 0*1821051 45 0*1921052 40 0*2021053 35 0* 16580 05/28*2121056 35 0*2231058 35 0* 0 0 0 0* 0 0 0 0* 16580 05/28*2121056 35 0*2231058 35 0X2341060 30 0* 0 0 0 0* Extrapolated inland based on MWL. Storm #19/1983 TICO 2008 Revision 17485 10/11/1983 M= 9 19 SNBR= 430 TICO XING=1 17490 10/11* 0 0 0 0* 0 0 0 0* 851004 25 0* 871009 30 0* 17495 10/12* 881014 30 0* 911020 30 0* 941026 30 0*1021029 30 0* 17500 10/13*1121029 35 0*1211029 35 0*1301029 40 0*1381029 45 0* 17505 10/14*1421029 55 0*1471029 60 0*1531031 75 0*1571033 80 0* 17510 10/15*1611036 75 0*1621039 75 0*1631042 80 0*1651045 80 0* 17515 10/16*1681049 80 0*1711054 75 0*1721060 80 0*1731068 95 0* 17520 10/17*1741074 100 0*1751084 90 0*1751090 100 0*1761097 100 0* 17525 10/18*1791101 100 0*1831104 105 0*1881104 110 0*1931102 105 0* 17530 10/19*2011095 115 0*2111083 110 0*2231070 110 0* 0 0 0 0* 17530 10/19*2011095 115 0*2111083 110 0*2231070 110 0X2351055 75 0* Extrapolated inland based on MWL Storm #7/1984 GENEVIEVE 2008 Revision 17995 07/07/1984 M= 8 7 SNBR= 439 GENEVIEVE XING=0 17995 07/07/1984 M= 8 7 SNBR= 439 GENEVIEVE XING=1 18000 07/07* 0 0 0 0*105 955 30 0*109 961 30 0*113 968 35 0* 18005 07/08*117 978 40 0*117 988 50 0*120 997 60 0*1231004 65 0* 18010 07/09*1301014 65 0*1371022 75 0*1451032 90 0*1531043 90 0* 18015 07/10*1611051 90 0*1701061 90 0*1791070 90 0*1881078 100 0* 18020 07/11*1941084 100 0*2001089 90 0*2041090 80 0*2071090 65 0* 18025 07/12*2091090 65 0*2111090 55 0*2131091 50 0*2141093 50 0* 18030 07/13*2171096 50 0*2181100 45 0*2201103 35 0*2221106 35 0* 18035 07/14*2271108 30 0*2351109 25 0* 0 0 0 0* 0 0 0 0* 18035 07/14*2271108 30 0*2351109 25 0X2431110 25 0* 0 0 0 0* Extrapolated inland based on MWL (did not remain offshore) Storm #17/1984 NORBERT 2008 Revision 18435 09/14/1984 M=13 17 SNBR= 449 NORBERT XING=1 18475 09/21*1731161 115 0*1691154 105 0*1661144 105 0*1651133 105 0* 18480 09/22*1651119 115 0*1651108 105 0*1661097 105 0*1701089 115 0* 18485 09/23*1741084 115 0*1781083 110 0*1831083 105 0*1881087 105 0* 18490 09/24*1931091 110 0*1991096 115 0*2071103 115 0*2151111 100 0* 18495 09/25*2231120 90 0*2311126 105 0*2411131 105 0*2511135 75 0* 18500 09/26*2611136 60 0* 0 0 0 0* 0 0 0 0* 0 0 0 0* 18500 09/26*2611136 60 0*2711135 45 0* 0 0 0 0* 0 0 0 0* Extrapolation and based on MWL report Storm #18/1984 ODILE 2008 Revision 18510 09/17/1984 M= 6 18 SNBR= 450 ODILE XING=1 18515 09/17* 0 0 0 0* 0 0 0 0* 0 0 0 0*1431015 30 0* 18520 09/18*1451022 35 0*1471029 35 0*1501036 35 0*1521041 40 0* 18525 09/19*1541045 45 0*1571049 50 0*1601050 55 0*1631047 55 0* 18530 09/20*1651045 65 0*1661041 65 0*1661036 65 0*1661032 65 0* 18535 09/21*1661026 65 0*1641019 65 0*1631012 65 0*1641009 80 0* 18540 09/22*1641008 80 0*1651007 90 0*1701020 85 0*1801020 50 0* NEW** 09/23X1901020 25 0* 0 0 0 0* 0 0 0 0* 0 0 0 0* Based on extrapolation and info in MWL. Storm #21/1985 WALDO 2008 Revision 19765 10/07/1985 M= 3 21 SNBR= 474 WALDO XING=1 19770 10/07*1501061 25 0*1581073 30 0*1681081 35 0*1761088 45 0* 19775 10/08*1851093 50 0*1951096 60 0*2051097 65 0*2121097 75 0* 19780 10/09*2211093 80 0*2311083 90 0* 0* 0* 19780 10/09*2211093 80 0*2311083 90 0X2451071 65 0* 0* Extrapolation based on MWL Storm #14/1986 NEWTON 2008 Revision 20480 09/18/1986 M= 6 14 SNBR= 490 NEWTON XING=1 20485 09/18* 0 0 0 0* 0 0 0 0*1240945 25 0*1270958 25 0* 20490 09/19*1290970 25 0*1330982 25 0*1360996 25 0*1411010 30 0* 20495 09/20*1481020 35 0*1531029 40 0*1591038 45 0*1671046 45 0* 20500 09/21*1751052 50 0*1851059 65 0*1941064 65 0*2031068 65 0* 20505 09/22*2121073 65 0*2201077 65 0*2281084 65 0*2361091 65 0* 20510 09/23*2451097 70 0*2521099 75 0*2611099 65 0*2671098 65 0* NEW** 09/23X2731097 50 0* 0 0 0 0* 0 0 0 0* 0 0 0 0* Extrapolation to bring inland Storm #17/1986 ROSLYN 2008 Revision 20590 10/15/1986 M= 8 17 SNBR= 493 ROSLYN XING=1 20595 10/15* 0 0 0 0* 0 0 0 0* 0 0 0 0*1020927 25 0* 20600 10/16*1030941 30 0*1050953 35 0*1070968 40 0*1080980 45 0* 20605 10/17*1100996 50 0*1131010 65 0*1151026 75 0*1171041 85 0* 20610 10/18*1191053 90 0*1211065 100 0*1231077 110 0*1271088 115 0* 20615 10/19*1301094 120 0*1341101 125 0*1381107 125 0*1441113 125 0* 20620 10/20*1521117 115 0*1611121 115 0*1711120 90 0*1811116 75 0* 20625 10/21*1911111 75 0*2021105 75 0*2081098 65 0*2141090 65 0* 20630 10/22*2201081 65 0*2271071 65 0* 0 0 0 0* 0 0 0 0* 20630 10/22*2201081 65 0*2271071 65 0X2351060 45 0* 0 0 0 0* Extrapolation to bring inland CP011990 AKA 2013 Revision Replacing value at: 1990-08-13 12Z was 15.0N 179.0W with 15.0N 179.0E Typographical error EP142003 NORA 2013 Revision Replacing value at: 2003-10-08 06Z was 21.0N 108.0W with 20.6N 109.2W Point inadvertently repeated CP012009 MAKA 2013 Revision The b-decks are missing 12 and 18Z on the 13th. Convention in the best tracks is to always give a 6 hourly latitude longitude, even for cases like this that being as a TC, degenerate to a disturbance, and reform into a TC. Given that it was a "DB" immediately before and after this missing two time periods, it stands to reason that it was a "DB" in between as well: 20090813, 1200, , DB, 14.2N, 179.7E, 25, 1011, 20090813, 1800, , DB, 14.0N, 179.2E, 25, 1011,