[Index]
Northern Hemisphere 1999 Tropical Cyclone Season Review
[Summaries and Track Data] [Prepared by Gary Padgett]
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Northern Hemisphere 1999 Tropical Cyclone Season Review [Summaries and Track Data] [Prepared by Gary Padgett] |
A REVIEW OF THE 1999 TROPICAL CYCLONE SEASON
FOR THE NORTHERN HEMISPHERE
Following is a tabular summary of all the tropical depressions,
tropical storms, hurricanes, and typhoons which occurred in the
Northern Hemisphere between 1 January and 31 December 1999, as
reported in the Monthly Global Tropical Cyclone Summaries prepared
by the author.
(1) Number - this is the cyclone warning number assigned by either
TPC/NHC, CPHC in Honolulu, or JTWC. If neither of these
agencies issued any warnings, no number will be given.
(2) Name - the name (if any) assigned by either TPC/NHC, CPHC, or
JTWC (and PAGASA for Western North Pacific systems in
their area of warning responsibility). Greek letter
names were assigned to certain systems by the author
for purposes of discussion in the monthly summaries.
(3) Dates - range of dates for which tracking information for the
cyclone is available in the Global Tropical Cyclone
Tracks documents prepared by the author.
(4) Pressure - Lowest central pressure (either estimated or recorded)
during the lifetime of the cyclone. For Atlantic and
Northeastern Pacific systems these will be the values
reported in operational advisories from TPC/NHC or
CPHC. For Northwestern Pacific systems the central
pressure estimates are taken from advisories issued by
the Japanese Meteorological Agency. An asterisk (*)
following the pressure indicates the reading was an
actual measured pressure normally obtained by a drop-
sonde released during an aerial reconnaissance
flight. Central pressure is given in millibars,
which is numerically equivalent to hectopascals.
(5) MSW - maximum 1-minute average sustained windspeed in knots.
For the Northwestern Pacific and North Indian Ocean
basins, these will be the highest value assigned
operationally by JTWC. For the Atlantic and Northeastern
Pacific basins, the MSW values are taken from the
preliminary seasonal summary released by TPC/NHC at the
end of the official Hurricane Season on 30 November.
(6) Basins - tropical cyclone basins where the cyclone tracked during
its life:
ATL - North Atlantic, Gulf of Mexico, Caribbean Sea
NEP - North Pacific east of Longitude 180
NWP - North Pacific west of Longitude 180
(including South China Sea)
NIO - Bay of Bengal and Arabian Sea
For tropical systems in the NWP basin, two additional columns of
information are given:
(1) The tropical storm serial number assigned by the Japanese
Meteorological Agency to tropical depressions which are deemed
to have reached tropical storm intensity. This does not always
agree with JTWC's assessment.
(2) An estimate of the maximum 10-minute average sustained wind.
These values are taken from either Japan's or Manila's warnings,
whichever had the higher value.
A number in parentheses (e.g. (1) ) following an entry refers to
a note following the entries for the given basin. A separate table
is given for each of the four Northern Hemisphere basins.
***********************************************************************
ATLANTIC BASIN
NUM NAME DATES CENT PRS MSW BASIN
(mb) (kts)
------------------------------------------------------------------------
01 Arlene 11-18 Jun 1008* 50 ATL
02 ----- 02-03 Jul 1004* 30 ATL
03 Bret 18-25 Aug 944* 120 ATL
04 Cindy 19-31 Aug 944 120 ATL
05 Dennis 24 Aug-07 Sep 962* 90 ATL
06 Emily 24-28 Aug 1004* 45 ATL
07 ----- 05-07 Sep 1005 30 ATL
08 Floyd 07-17 Sep 921* 135 ATL
-- "Delta" 07-11 Sep --- 25 ATL (1)
09 Gert 11-24 Sep 930 130 ATL
-- "Epsilon" 13-17 Sep 1005 30 ATL (2)
10 Harvey 19-22 Sep 994* 50 ATL
11 ----- 04-06 Oct 1002* 30 ATL
12 ----- 06-08 Oct 1007 30 ATL
13 Irene 13-21 Oct 958* 95 ATL
14 Jose 17-28 Oct 979* 85 ATL
15 Katrina 28 Oct-01 Nov 999* 35 ATL
-- ----- 05-07 Nov 998 30 ATL (3)
16 Lenny 13-21 Nov 933* 135 ATL
-- ----- 24 Nov-03 Dec 997 40 ATL (3)
NOTES:
(1) After a post-season review of available data, it was determined that
this system had been quite weak. But in satellite imagery it did
display some features which raised the possibility that it could
have been a very small midget tropical cyclone of somewhat greater
intensity--hence its inclusion in the September summary.
(2) This system had more to commend its possible inclusion as an unnamed
tropical storm, but after a careful review of available data, it
was decided not to include the system as a tropical storm. There
were some winds exceeding gale force reported by ships, but these
were not near the center when the LOW was best organized. This
system will likely be considered as a unnumbered/non-operational
tropical depression by TPC/NHC.
(3) These two systems were hybrid LOWs which exhibited some subtropical
characteristics but which never acquired enough organized central
convection to be regarded as tropical cyclones. The gale-force
winds reported in the second system were peripheral gales well
removed from the central area of the LOW.
************************************************************************
NORTHEAST PACFICIC BASIN
NUM NAME DATES CENT PRS MSW BASIN
(mb) (kts)
------------------------------------------------------------------------
01E Adrian 18-22 Jun 975 85 NEP
02E Beatriz 09-16 Jul 956 105 NEP
03E ----- 14-15 Jul 1007 30 NEP
04E ----- 23-25 Jul 1007 30 NEP
05E Calvin 25-27 Jul 1005 35 NEP
06E ----- 26-28 Jul 1005 30 NEP
07E Dora (9911) 06-23 Aug 943 120 NEP/NWP
08E Eugene 06-15 Aug 965 95 NEP
09E ----- 13-15 Aug 1005 30 NEP
10E Fernanda 17-22 Aug 994 55 NEP
11E ----- 23-24 Aug 1000 30 NEP
12E Greg 05-09 Sep 987 65 NEP
13E Hilary 17-21 Sep 987 65 NEP
14E Irwin 08-11 Oct 997 50 NEP
NOTE: Hurricane Dora was assigned the number 9911 by the Japanese
Meteorological Agency when the storm crossed longitude 180 and entered
the Northwest Pacific basin.
************************************************************************
NORTHWEST PACFICIC BASIN
JTWC NAME(S) JMA DATES CENT MSW MSW BASIN
NUM TROP STM PRS 1-MIN 10-MIN
NUM (mb) (kts) (kts)
------------------------------------------------------------------------
01W Hilda/Auring ---- 03-08 Jan 1000 35 30 NWP
02W Iris/Bebeng ---- 15-18 Feb --- 35 30 NWP
03W Jacob/Karing ---- 06-10 Apr --- 35 30 NWP
04W Kate/Diding 9901 22-28 Apr 980 75 55 NWP
05W Leo 9902 27 Apr-02 May 960 110 75 NWP
06W Maggie/Etang 9903 01-08 Jun 955 105 85 NWP
--- Gening ---- 04-06 Jun --- -- 30 NWP (1)
07W ----- 9904 15-18 Jul 996 30 35 NWP (2)
08W ----- ---- 21-22 Jul --- 30 -- NWP
09W Neil/Helming 9905 21-28 Jul 980 40 50 NWP
10W ---- 9906 26-27 Jul 985 25 40 NWP (2)
11W Olga/Ising 9907 28 Jul-03 Aug 970 75 65 NWP
12W Paul 9908 03-08 Aug 985 50 45 NWP
13W Rachel 9909 05-09 Aug 992 35 35 NWP
14W ----- ---- 08-10 Aug --- 30 -- NWP
--- "Alpha" ---- 08-11 Aug --- 55 -- NWP (3)
--- "Beta" ---- 09-11 Aug --- 45 -- NWP (3)
--- "Gamma" ---- 11-17 Aug --- 35 -- NWP (3)
15W ----- ---- 16-18 Aug --- 25 -- NWP
16W Sam/Luding 9910 18-23 Aug 980 75 55 NWP
17W Tanya 9912 19-24 Aug --- 70 50 NWP (4)
18W ----- ---- 21-24 Aug --- 30 -- NWP (5)
19W Virgil 9913 24-29 Aug --- 75 45 NWP (6)
20W Wendy/Mameng 9914 30 Aug-04 Sep 996 40 40 NWP
21W York/Neneng 9915 10-17 Sep 980 70 55 NWP
22W Zia 9916 13-15 Sep 985 35 45 NWP
23W Ann 9917 15-20 Sep 980 45 50 NWP
24W Bart/Oniang 9918 17-25 Sep 930 140 90 NWP
25W Cam 9919 22-26 Sep 990 40 45 NWP
26W Dan/Pepang 9920 02-11 Oct 960 110 80 NWP
27W Eve/Rening 9921 15-20 Oct 990 45 45 NWP
--- "Zeta" ---- 02-05 Nov 1003 20 -- NWP (7)
28W ----- ---- 05-07 Nov 1000 30 30 NWP
29W Frankie/Sendang ---- 06-10 Nov 994 35 40 NWP (8)
--- "Eta" ---- 08-16 Nov --- 60 -- NWP (9)
30W Gloria/Trining 9922 13-16 Nov 980 65 50 NWP
--- "Theta" ---- 26 Nov-01 Dec --- 50 -- NWP (A)
31W ----- ---- 01-04 Dec --- 30 -- NWP
32W ----- ---- 09-11 Dec --- 30 -- NWP
33W ----- ---- 14-16 Dec --- 30 -- NWP
NOTES:
(1) System was carried as a tropical depression by PAGASA only.
(2) These depressions were classifed as tropical storms by JMA.
(3) Tracks and intensities for these systems were provided by Dr. Mark
Lander of the University of Guam. Greek letter names were assigned
by the author.
(4) Mark Lander's highest MSW for Tanya was 90 kts.
(5) Mark Lander's highest MSW for 18W was 45 kts.
(6) Mark Lander's highest MSW for Virgil was 100 kts.
(7) System was a monsoon depression which brought extremely devastating
floods to Vietnam. According to Mark Lander, gale-force winds
were present in a peripheral cloud band to the north and east of
the center, and winds were likely approaching gale force in the
central region when landfall occurred.
(8) Frankie/Sendang was not regarded as a tropical storm by JMA.
(9) Track and intensity for this system provided by Mark Lander.
The peak winds of 60 kts occurred after the initial tropical
depression had weakened and had transformed into a vigorous
subtropical cyclone. Estimated strongest winds while still a
tropical depression were 30 kts.
(A) Track and intensity for this system provided by Mark Lander.
System originated east of Dateline as a typical Hawaiian Kona LOW.
Peak winds of 50 kts occurred during this initial subtropical phase.
After transforming into a tropical storm the highest MSW were
estimated to be on the order of 40-45 kts.
************************************************************************
NORTH INDIAN OCEAN BASIN
NUM NAME DATES CENT PRS MSW BASIN
(mb) (kts)
------------------------------------------------------------------------
01B ----- 01-05 Feb --- 40 NIO
02A ----- 16-22 May --- 110 NIO
03B ----- 10-11 Jun --- 35 NIO (1)
--- ----- 17 Jun --- 30 NIO (2)
--- ----- 27-28 Jul --- 25 NIO (3)
--- ----- 06-08 Aug --- 25 NIO (2)
04B ----- 15-19 Oct --- 120 NIO
05B ----- 25 Oct-01 Nov --- 140 NIO
--- ----- 08-11 Dec --- 25 NIO (2)
NOTES:
(1) System was intensifying at landfall and winds likely reached
40-45 kts shortly before moving inland.
(2) Treated as a depression by only IMD.
(3) Treated as a depression by only IMD. System was strengthening at
landfall and winds were likely 30 kts as it moved inland.
************************************************************************
Prepared by Gary Padgett
[email protected]
Home: 334-222-5327
Work: 850-882-2594
|
Document: summ1999.htm
Updated: 4th January 2007 |
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