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Northern Hemisphere 2007 Tropical Cyclone Season Review
[Summaries and Track Data] [Prepared by Gary Padgett]
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Northern Hemisphere 2007 Tropical Cyclone Season Review [Summaries and Track Data] [Prepared by Gary Padgett] |
A REVIEW OF THE 2007 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 2007, as
reported in the Monthly Global Tropical Cyclone Summaries prepared
by the author.
(1) Number - this is the sequential cyclone 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, IMD,
or JMA (and PAGASA for Western North Pacific systems in
their area of warning responsibility).
(3) Dates - range of dates for which tracking information for the
cyclone is available in the Global Tropical Cyclone
Tracks files 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 Northwest 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
official tropical cyclone reports prepared by the
TPC/NHC Hurricane Specialists and which are available
on TPC/NHC's website: .
(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.
The value given represents the highest 10-min avg MSW assigned
by any agency. If from any warning center other than JMA, a
numbered note below identifies which center's value is given.
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 Andrea 06-14 May 1001 50 ATL (1)
02 Barry 01-05 Jun 997 * 50 ATL
03 Chantal 30 Jul-04 Aug 994 45 ATL
04 Dean 13-23 Aug 906 * 150 ATL
05 Erin 15-19 Aug 995 50 ATL (2)
06 Felix 31 Aug-05 Sep 930 * 150 ATL
07 Gabrielle 04-12 Sep 1004 * 50 ATL (4)
08 Ingrid 12-18 Sep 1002 40 ATL
09 Humberto 12-14 Sep 985 * 80 ATL
10 ----- 18-22 Sep 1005 * 30 ATL
11 Jerry 20-25 Sep 1003 35 ATL (4)
12 Karen 25-30 Sep 988 65 ATL (3)
13 Lorenzo 25-28 Sep 990 * 70 ATL
14 Melissa 23 Sep-02 Oct 1005 35 ATL
15 ----- 11-13 Oct 1011 30 ATL
16 Noel 28 Oct-05 Nov 980 * 70 ATL (5)
17 Olga 10-16 Dec 1003 50 ATL (4)
-- ----- 26 Dec-02 Jan 1004 45 ATL (6)
NOTES:
(1) System was a subtropical storm which never acquired full tropical
characteristics. The max winds/min pressure given above are for
the subtropical portion of its life only. The parent extratropical
cyclone from which Andrea evolved produced winds exceeding hurricane
force.
(2) The peak winds during the lifetime of Tropical Storm Erin occurred
during a brief and very surprising intensification episode over
Oklahoma hundreds of miles inland and three days after landfall on
the Texas coast. NHC has officially not classified this phase of
Erin's life as a tropical storm, but there are some meteorologists
who disagree with this assessment.
(3) Upgraded to a hurricane during post-storm analysis.
(4) System was initially named as a subtropical storm but made the
transition into a tropical cyclone.
(5) Winds reached 75 kts after Noel had become, or at least was in the
process of becoming, an extratropical cyclone.
(6) System was a non-tropical LOW south of the Azores that developed
organized convection. It looked best on 29 December when satellite
intensity estimates were 35-40 kts, and may have been a subtropical
storm that day before merging with a front and weakening on the 30th.
(Comments from Jack Beven.) Drifting buoy 62901 reported a pressure
of 1004.6 mb at 31/0000 UTC very near the low-level center, and an
ASCAT pass around the same time revealed a few 45-kt wind vectors
near the swath edge in the northwestern semicircle, where the
pressure gradient would be tightest due to high pressure centered
to the northwest.
************************************************************************
NORTHEAST PACFICIC BASIN
NUM NAME DATES CENT PRS MSW BASIN
(mb) (kts)
------------------------------------------------------------------------
01E Alvin 27-31 May 1003 35 NEP
02E Barbara 29 May-02 Jun 1000 45 NEP
03E ----- 11-13 Jun 1004 30 NEP
04E ----- 09-11 Jul 1006 30 NEP
05E ----- 14-16 Jul 1006 30 NEP
06E Cosme 14-23 Jul 987 65 NEP
07E Dalila 22-27 Jul 995 50 NEP
08E Erick 31 Jul-02 Aug 1004 35 NEP
09E Flossie 08-16 Aug 949 120 NEP
10E Gil 29 Aug-02 Sep 1001 40 NEP
11E Henriette 30 Aug-06 Sep 972 75 NEP
12E Ivo 18-24 Sep 984 70 NEP
13E ----- 19-20 Sep 1007 30 NEP
14E Juliette 29 Sep-02 Oct 997 50 NEP
15E Kiko 15-25 Oct 991 60 NEP
************************************************************************
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 Kong-rey 0701 31 Mar-07 Apr 960 90 75 NWP
02W Yutu/Amang 0702 15-25 May 935 125 95 NWP
03W Toraji 0703 03-06 Jul 996 35 35 NWP
04W Man-yi/Bebeng 0704 07-20 Jul 930 130 95 NWP (1)
05W Usagi 0705 27 Jul-07 Aug 945 120 90 NWP
06W ----- ---- 02-07 Aug 994 35 30 NWP
07W Pabuk/Chedeng 0706 04-14 Aug 975 65 65 NWP
08W Wutip/Dodong 0707 06-09 Aug 990 40 40 NWP
--- ----- ---- 10-12 Aug 992 -- 30 NWP (2)
09W Sepat/Egay 0708 11-22 Aug 910 140 110 NWP
--- ----- ---- 14-15 Aug 1002 -- 30 NWP (2)
--- ----- ---- 21-25 Aug 1004 -- 30 NWP (2)
10W Fitow 0709 26 Aug-09 Sep 970 85 65 NWP (3)
11W Danas 0710 06-17 Sep 994 60 50 NWP
--- ----- ---- 09-14 Sep 1000 -- 30 NWP (2)
12W Nari/Falcon 0711 11-18 Sep 940 120 95 NWP
13W Wipha/Goring 0712 15-21 Sep 930 135 100 NWP
14W ----- ---- 19-21 Sep 1006 30 25 NWP
15W Francisco 0713 21-26 Sep 990 45 45 NWP
16W Lekima/Hanna 0714 27 Sep-04 Oct 975 70 60 NWP (4)
17W Krosa/Ineng 0715 01-09 Oct 925 130 105 NWP
--- Haiyan 0716 30 Sep-07 Oct 998 65 35 NWP (5)
--- Podul 0717 03-09 Oct 990 55 35 NWP (6)
18W Lingling 0718 09-19 Oct 994 45 45 NWP (7)
19W Kajiki 0719 18-25 Oct 945 110 90 NWP (8)
20W Faxai/Juaning 0720 24-31 Oct 980 40 55 NWP
21W Peipah/Kabayan 0721 02-10 Nov 970 75 70 NWP
22W Tapah 0722 10-13 Nov 996 35 35 NWP
23W Hagibis/Lando 0724 18-28 Nov 970 85 70 NWP
24W Mitag/Mina 0723 20-27 Nov 955 95 80 NWP (9)
25W ----- ---- 26-27 Nov --- 25 -- MWP (10)
26W ----- ---- 28-29 Nov --- 35 -- NWP (11)
NOTES:
(1) Dr. Karl Hoarau performed his own analysis of Typhoon Man-yi and
does not believe that it reached 130 kts, but rather peaked at
125 kts (1-min avg).
(2) Classified as a tropical depression by JMA only.
(3) The times of JTWC's and JMA's respective peak intensities do not
coincide. When JMA was estimating 65 kts (10-min avg), JTWC's peak
MSW was 80 kts (1-min avg). At the time of JTWC's peak 1-min avg
MSW of 85 kts, JMA's 10-min avg MSW was 60 kts.
(4) This system was classified as Tropical Storm Hanna well before it was
officially named Lekima by JMA, by which time it had moved westward
out of PAGASA's AOR.
(5) No warnings were issued on TS Haiyan by JTWC. The 1-min avg MSW
estimates were sent to the author by Dr. Karl Hoarau.
(6) No warnings were issued on TS Podul by JTWC. The 1-min avg MSW
estimates were sent to the author by Dr. Karl Hoarau.
(7) The peak 1-min avg MSW of 45 kts was estimated by Dr. Karl Hoarau
during a time prior to warnings being issued on this system by any
agency. The peak operational 1-min avg MSW assigned by JTWC was
35 kts, concurrent with the peak 10-min avg of 45 kts assigned by
JMA.
(8) Dr. Karl Hoarau performed a Dvorak analysis of TY Kajiki and estimates
the peak 1-min avg MSW at 125 kts.
(9) The times of JTWC's and JMA's respective peak intensities do not
coincide. When JMA was estimating 80 kts (10-min avg), JTWC's peak
MSW was 90 kts (1-min avg). At the time of JTWC's peak 1-min avg
MSW of 95 kts, JMA's 10-min avg MSW was 75 kts.
(10) While JTWC's peak 1-min avg MSW was only 25 kts, several SAB
satellite fix bulletins rated the system at T2.0/2.0, suggesting
that the depression produced 30-kt winds at some point. JMA never
referenced this system in their High Seas bulletins, even as a
low-pressure area. According to Dr. Karl Hoarau, microwave imagery
clearly indicated the presence of a LLCC.
(11) JTWC issued only two warnings on this system, and the highest MSW
was only 25 kts. Rather unusual, given that the translational speed
was 29 kts! Dr. Karl Hoarau estimates that the MSW peaked at 35 kts,
and I included that value in the track I prepared. The Dvorak
estimates from JTWC's own satellite analyst reached T2.5/2.5 for
several hours, and one SAB rating reached T3.0/3.0. There was ample
evidence from satellite imagery, plus the rapid forward motion, to
believe that this system was a tropical storm. JMA never elevated
the system above weak depression status.
************************************************************************
NORTH INDIAN OCEAN BASIN
NUM NAME DATES CENT PRS MSW BASIN
(mb) (kts)
------------------------------------------------------------------------
01B Akash 12-15 May --- 65 NIO
02A Gonu 01-07 Jun 920 140 NIO
03B Yemyin 21-27 Jun --- 50 NIO (1)
04B ----- 27 Jun-01 Jul --- 45 NIO
--- ----- 05-06 Aug --- 30 NIO
05A ----- 27 Oct-04 Nov --- 45 NIO
--- ----- 26-28 Oct --- 30 NIO
06B Sidr 10-16 Nov --- 135 NIO (2)
NOTES:
(1) This system was not officially named operationally by IMD, who has
official naming responsibility for the NIO basin. However, the
Pakistani Meteorological Service unofficially named the storm Yemyin
and this name was given wide dissemination by the press. Later, IMD
re-analyzed the system to have been of cyclone intensity and made
the decision to officially let the name Yemyin stand. The highest
MSW assigned to Yemyin by JTWC was 50 kts, but based on most Dvorak
intensity estimates, microwave imagery, and at least one SLP
observation a few hours after landfall, the storm was likely of
hurricane intensity when it made landfall in Pakistan.
(2) Dr. Karl Hoarau believes that Sidr peaked at 140 kts.
************************************************************************
Prepared by Gary Padgett
[email protected]
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Document: summ2007.htm
Updated: 4th November 2008 |
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