MONTHLY GLOBAL TROPICAL CYCLONE SUMMARY
JUNE, 2006
(For general comments about the nature of these summaries, as well as
information on how to download the tabular cyclone track files, see
the Author's Note at the end of this summary.)
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JUNE HIGHLIGHTS
--> First Atlantic tropical storm of season crosses Florida Peninsula
--> Minor tropical storm traverses South China Sea
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!!!!!!!!!!!!!! EXTRA FEATURE !!!!!!!!!!!!!!
A REVIEW OF THE 2005-2006 TROPICAL CYCLONE SEASON
FOR THE SOUTHERN HEMISPHERE
Following is a tabular summary of all the tropical depressions
and tropical cyclones which occurred in the Southern Hemisphere
between 1 July 2005 and 30 June 2006 as reported in the Monthly
Global Tropical Cyclone Summaries prepared by the author.
(1) Number - this is the sequential cyclone number assigned by JTWC
in Hawaii.
(2) Name - the name (if any) assigned by the responsible Tropical
Cyclone Warning Centre. For systems in the South Indian Ocean
west of 90E and in the Southwest Pacific east of 160E which were
unnamed, the alphanumeric designator applied by La Reunion or
Fiji, respectively, is given in this column.
(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. The dates given in most cases refer to
the time the system was in warning status and generally do not
include the pre-depression stages of the disturbance.
(4) Pressure - Lowest central pressure (either estimated or recorded)
during the lifetime of the cyclone. An asterisk (*) following
the pressure indicates the reading was an actual measured
pressure. Central pressure is given in millibars, which is
numerically equivalent to hectopascals.
(5) MSW 1-min avg - maximum 1-minute average sustained windspeed in
knots as assigned by JTWC. An asterisk (*) following the MSW
indicates that it was an actual measured value.
(6) MSW 10-min avg - maximum 10-minute average sustained windspeed
in knots as assigned by the responsible Tropical Cyclone Warning
Centre. An asterisk (*) following the MSW indicates that it was
an actual measured value.
(7) Basins - tropical cyclone basins where the cyclone tracked during
its life:
SWI - Southwest Indian Ocean - West of 90E
AUW - Northwest Australia/Southeast Indian Ocean - 90E to 135E
AUE - Northeast Australia/Coral Sea - 135E to 160E
SPA - South Pacific Ocean - East of 160E
SAT - South Atlantic Ocean
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 Southern Hemisphere basins.
Abbreviations for Tropical Cyclone Warning Centres:
JTWC - Joint Typhoon Warning Center, formerly on Guam, now at
Pearl Harbor, Hawaii
MFR - Meteo France Reunion (RSMC La Reunion)
RSMC - Regional Specialised Meteorological Centre
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
SOUTHWEST INDIAN OCEAN
JTWC NAME DATES CENT MSW MSW BASIN
NUM PRS 1-MIN 10-MIN
(mb) (kts) (kts)
------------------------------------------------------------------------
--- (MFR-01) 05-06 Sep 1001 -- 25 SWI
01S (MFR-02) 12-15 Oct 997 35 30 SWI
--- (MFR-03) 06-08 Nov 998 -- 30 SWI
--- (MFR-07) 03-07 Jan 1000 -- 25 SWI
09S Boloetse 24 Jan-06 Feb 946 100 90 SWI
12S (MFR-09) 19-21 Feb 995 45 40 SWI
14S Carina 23 Feb-03 Mar 910 130 115 SWI
16S Diwa 02-10 Mar 980 55 60 SWI
--- (MFR-12) 04 Mar 1000 -- 25 SWI
22S Elia 06-16 Apr 987 55 45 SWI/AUW
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
NORTHWEST AUSTRALIA / SOUTHEAST INDIAN OCEAN
JTWC NAME DATES CENT MSW MSW BASIN
NUM PRS 1-MIN 10-MIN
(mb) (kts) (kts)
------------------------------------------------------------------------
02S (MFR-04) 05-08 Nov 995 45 30 AUW/SWI
03S Bertie-Alvin 18-28 Nov 930 115 100 AUW/SWI
04S (MFR-06) 21-29 Dec 998 35 30 AUW/SWI
05S Clare 07-10 Jan 960 60 75 AUW
08S Daryl 17-23 Jan 965 65 65 AUW
15S Emma 26-28 Feb 986 35 40 AUW
--- ----- 28 Feb-07 Mar 998 -- 30 AUW
19S Floyd 19-27 Mar 915 115 105 AUW
20S Glenda 23-31 Mar 910 140 115 AUW
--- ----- 26-27 Mar 996 -- 30 AUW
21S Hubert 04-07 Apr 970 55 55 AUW
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
NORTHEAST AUSTRALIA / CORAL SEA
JTWC NAME DATES CENT MSW MSW BASIN
NUM PRS 1-MIN 10-MIN
(mb) (kts) (kts)
------------------------------------------------------------------------
10P Jim 26 Jan-02 Feb 955 80 80 AUE/SPA
13P Kate 22-24 Feb 985 50 50 AUE
--- ----- 01-06 Mar 995 -- 55 AUE (1)
17P Larry 16-21 Mar 915 100 110 AUE
23P Monica 16-26 Apr 905 155 135 AUE/AUW
NOTES:
(1) System was a hybrid, subtropical LOW.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
SOUTH PACIFIC OCEAN
JTWC NAME DATES CENT MSW MSW BASIN
NUM PRS 1-MIN 10-MIN
(mb) (kts) (kts)
------------------------------------------------------------------------
06P Tam 06-15 Jan 987 40 45 SPA
--- (05F) 10-13 Jan 996 -- 30 SPA
07P Urmil 13-15 Jan 975 60 60 SPA
--- (10F) 02-04 Feb 998 -- 30 SPA (1)
--- (11F) 08-10 Feb 1000 -- 30 SPA
11P Vaianu 09-19 Feb 965 75 70 SPA
--- (13F) 19-25 Feb 998 -- 25 SPA (1)
18P Wati 17-28 Mar 950 80 85 SPA/AUE
NOTES:
(1) Some peripheral gales were associated with these systems.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
SOUTH ATLANTIC OCEAN
JTWC NAME DATES CENT MSW MSW BASIN
NUM PRS 1-MIN 10-MIN
(mb) (kts) (kts)
------------------------------------------------------------------------
--- ----- 21-23 Feb --- 55 -- SAT (1)
NOTES:
(1) The tracking and intensity information for this South Atlantic
tropical storm was supplied by Dr. Karl Hoarau of Cergy-Pontoise
University, Paris, France.
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ACTIVITY BY BASINS
ATLANTIC (ATL) - North Atlantic Ocean, Caribbean Sea, Gulf of Mexico
Activity for June: 1 tropical storm
Sources of Information
----------------------
Most of the information presented below was obtained from the
various tropical cyclone products issued by the Tropical Prediction
Center/National Hurricane Center (TPC/NHC) in Miami, Florida:
discussions, public advisories, forecast/advisories, tropical weather
outlooks, special tropical disturbance statements, etc. Some
additional information may have been gleaned from the monthly
summaries prepared by the hurricane specialists and available on
TPC/NHC's website. All references to sustained winds imply a
1-minute averaging period unless otherwise noted.
Atlantic Tropical Activity for June
-----------------------------------
Since 1950 the month of June in the Atlantic basin has averaged a
tropical storm roughly every other year with an average of 1.38 NSD.
June of 2006 was the second consecutive month of June to produce a
tropical storm, following the two named storms which kicked off the
incredibly active 2005 season. However, neither of the 2005 or 2006
storms reached hurricane intensity. On the average a June hurricane
forms about every six years, but the last June hurricane was Hurricane
Allison in 1995, and the previous June hurricane prior to that was
Hurricane Bonnie in 1986. Between 1954 and 1972, inclusive, seven
hurricanes formed in the month of June, plus one in May (1970). This
year's Tropical Storm Alberto, as did Arlene last year, neared hurricane
intensity but fell a little short of being upgraded. Alberto lasted
longer than the average June tropical storm, producing 3.00 NSD. A
short report on Alberto follows.
TROPICAL STORM ALBERTO
(TC-01)
10 - 18 June
------------------------------------------
Much of the information following was obtained from the monthly
summary for June prepared by the hurricane specialists at TPC/NHC.
Alberto formed from the interaction of a tropical wave with a trough
of low pressure which lay over the northwestern Caribbean Sea in early
June. A tropical depression formed on 10 June and the poorly-organized
center moved northwestward through the Yucatan Channel that night.
Around 1300 UTC on the morning of 11 June a reconnaissance plane measured
a FLW of 51 kts at 425 metres. This data, along with a ship report of
33 kts at 1200 UTC in the same area, was the basis for upgrading Alberto
to a tropical storm at 1500 UTC. The center of the newly-christened
cyclone with 40-kt winds was then located about 175 nm northwest of the
western tip of Cuba.
Tropical Storm Alberto subsequently turned northward but as the system
was located in a high vertical shear environment, had strengthened to
only 45 kts by the early morning of 12 June. However, later that
morning, a reconnaissance aircraft found that the center had reformed
near the deep convection and the MSW was abruptly upped to 60 kts--the
peak for Alberto. As a precaution, a hurricane warning was issued for
portions of the Florida coastline. The storm's sudden strengthening
had occurred over a region of high oceanic heat content--the Gulf Loop
Current--but as Alberto turned northeastward and left the Loop Current
behind, it began to slowly weaken. The storm made landfall around
midday on 13 June near Adams Beach in the Big Bend area of Florida,
about 80 km southeast of Tallahassee, with the MSW near 45 kts. Alberto
weakened to a tropical depression on the 14th over Georgia and then
emerged off the mid-Atlantic coast as an extratropical gale that night.
The post-Alberto system accelerated northeastward, passing near the
Canadian Maritimes, and then traversed the North Atlantic, nearing
Ireland by the 18th.
A graphic displaying the track of Tropical Storm Alberto up through
extratropical transition may be found at the following link:
Another graphic depicting the entire track may be found at the
following link:
The track in tabular format may be accessed at the following URL:
The very detailed and informative Wikipedia report may be accessed
at the following link:
A few highlights gleaned from the Wikipedia report:
(1) Grand Cayman recorded 577 mm of rainfall in association with Alberto.
(2) Some stations in Cuba recorded in excess of 400 mm of rain.
(3) The maximum rainfall for the U. S. was at Raleigh, NC, where 182 mm
was measured.
(4) Ruskin, FL, measured 170 mm while Rincon, GA, recorded 179 mm.
(5) Two fatalities were attributed to Alberto: the pilot of a small
plane which crashed near Tampa, FL, and a 13-year old boy who
drowned near Raleigh, NC. In addition, nine people were reported
missing after a boat supposedly sank off Boynton Beach Inlet, but
this was later determined to be a hoax and the perpetrator arrested.
(6) There were 16 tornadoes reported in association with Alberto.
(Report written by Gary Padgett)
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NORTHEAST PACIFIC (NEP) - North Pacific Ocean East of Longitude 180
Activity for June: 1 tropical depression
Sources of Information
----------------------
Most of the information presented below was obtained from the
various tropical cyclone products issued by the Tropical Prediction
Center/National Hurricane Center (TPC/NHC) in Miami, Florida (or the
Central Pacific Hurricane Center (CPHC) in Honolulu, Hawaii, for
locations west of longitude 140W): discussions, public advisories,
forecast/advisories, tropical weather outlooks, special tropical
disturbance statements, etc. Some additional information may have
been gleaned from the monthly summaries prepared by the hurricane
specialists and available on TPC/NHC's website. All references to
sustained winds imply a 1-minute averaging period unless otherwise
noted.
Northeast Pacific Tropical Activity for June
--------------------------------------------
Over the 1971-2005 period of record, the Northeast Pacific basin has
averaged two tropical storms per year with one reaching hurricane
intensity. No tropical storm formed in June, 2006, and this was only the
second time since 1969 that the month of June was stormless--the other
occasion being just two years earlier in 2004. And even though over the
long haul June has averaged one hurricane per year, the last Eastern
Pacific hurricane to form in the month of June was Hurricane Carlotta in
June, 2000. Interestingly, the month of May, which averages a hurricane
about once every four years, has seen three hurricanes during this
hurricane-free June period. In 2000 a hurricane formed in both May
and June with May's Hurricane Aletta being the first Eastern Pacific
May hurricane in ten years.
One tropical depression did form during the month of June--Tropical
Depression 02E. This system developed from a tropical wave about 140
miles southwest of Zihuatanejo, Mexico, on 3 June. Although it never
reached tropical storm intensity, its proximity to land and the
uncertainty in the intensity forecast prompted the issuance of tropical
storm warnings along the Mexican coast. The depression meandered off
the coast for a couple of days and brought heavy rainfall, flash floods
and mud slides over portion of Mexico. The system dissipated on 5 June
as it interacted with land. According to the Wikipedia report (see link
following), Acapulco received between 250 and 300 mm of rain from the
depression.
The short Wikipedia report on Tropical Depression 02E may be accessed
at the following link:
A graphic depicting the track of Tropical Depression 02E may be found
at the following link:
The track in tabular format may be accessed at the following URL:
*************************************************************************
NORTHWEST PACIFIC (NWP) - North Pacific Ocean West of Longitude 180
Activity for June: 2 tropical storms **
** - one formed on final day of month and became super typhoon in July
Sources of Information
----------------------
Most of the information presented below is based upon tropical
cyclone warnings and significant tropical weather outlooks issued
by the Joint Typhoon Warning Center of the U. S. Air Force and
Navy (JTWC), located at Pearl Harbor, Hawaii. In the companion
tropical cyclone tracks file, I normally annotate track coordinates
from some of the various Asian warning centers when their center
positions differ from JTWC's by usually 40-50 nm or more. All
references to sustained winds imply a 1-minute averaging period
unless otherwise noted.
Michael V. Padua of Naga City in the Philippines, owner of the
Typhoon 2000 website, normally sends me cyclone tracks based upon
warnings issued by the Japanese Meteorological Agency (JMA) and the
Philippines' Atmospheric, Geophysical & Astronomical Services
Administration (PAGASA). A very special thanks to Michael for the
assistance he so reliably provides.
In the title line for each storm I have referenced all the cyclone
names/numbers I have available: JTWC's depression number, the
JMA-assigned name (if any), JMA's tropical storm numeric designator,
and PAGASA's name for systems forming in or passing through their
area of warning responsibility.
Northwest Pacific Tropical Activity for June
--------------------------------------------
Following the dissipation of Super Typhoon Chanchu in late May, the
world's most active tropical cyclone basin lay dormant until late in
June when a tropical disturbance crossed the Philippines into the South
China Sea where it became Tropical Storm Jelawat. This event, however,
marked the beginning of an active spell in the Western Pacific which is
still continuing at the present time (14 August). Another tropical
depression formed late in the month and at 1800 UTC on 30 June was
upgraded by both JMA and JTWC to Tropical Storm Ewiniar. Ewiniar became
a strong typhoon in early July, briefly reaching super typhoon status
per JTWC's analysis. A short report on Jelawat, authored by Kevin Boyle,
follows--Typhoon Ewiniar will be covered in the July summary.
TROPICAL STORM JELAWAT
(TC-03W / TS 0206 / DOMENG)
26 - 29 June
-----------------------------------------------
Jelawat: contributed by Malaysia, is the name of a freshwater carp also
known as the Sultan fish. This tasty fish normally inhabits
large rivers and is much sought after by gourmets.
A. Storm History
----------------
Tropical Storm Jelawat was a relatively weak tropical storm that
brought heavy rains and flooding to southern parts of China. After a
month's hiatus, Jelawat was the first of three significant tropical
cyclones marking the beginning of an active period in the Northwest
Pacific basin, beginning in late June and continuing into July.
At 0600 UTC 22 June an area of convection had persisted approximately
30 nm southeast of Palau. It was first mentioned in JTWC's STWO when
animated multi-spectral satellite imagery showed convection consolidating
over a possible LLCC. An upper-level analysis indicated a low vertical
wind shear environment with favourable poleward outflow so further
development was expected. The disturbance moved quickly westwards
across the southern Philippines as Tropical Depression Domeng (PAGASA
assigned this name at 24/0000 UTC) on 24-25 June and entered the South
China Sea the next day. The system began to organize, prompting JTWC
to issue a TCFA at 25/2230 UTC, followed by the first warning at
26/0600 UTC. At this time, Tropical Depression 03W was located
approximately 160 nm west-southwest of Manila, Philippines, and
drifting towards the west-northwest at 12 kts along the southwestern
periphery of a subtropical ridge.
(Editor's Note: PAGASA classified the pre-Jelawat system as a tropical
depression as early as 24/0000 UTC and upgraded it to a tropical storm
at 24/1200 UTC, well before either JMA or JTWC had classified it as a
depression. So according to PAGASA's warnings, it was Tropical Storm
Domeng which crossed the southern Philippines.)
Tropical Depression 03W was raised to tropical storm status at 0000
UTC 27 June while centred approximately 345 nm south-southeast of Hong
Kong, China. It was named Jelawat at 27/0600 UTC after JMA upgraded
the system to a 35-kt tropical storm. Tropical Storm Jelawat followed
a predominantly northwestward track through the South China Sea and
reached its peak intensity of 45 kts at 27/1800 UTC as it was
approaching the island of Hainan, China. Passing very near the
northeast coast of Hainan, Jelawat began to weaken and was downgraded
to a tropical depression at 28/1800 UTC. Continuing northwestward, the
system made landfall near Zhanjiang, China, early on 29 June. JMA and
JTWC issued their final warnings at 29/0000 UTC and 29/0600 UTC,
respectively.
JMA estimated a peak intensity of 40 kts (10-min avg) and minimum CP
of 994 mb while PAGASA estimated a maximum intensity of 40 kts also.
Unfortunately, John Diebolt has had some problems with his track
graphic database, and the graphic for Tropical Storm Jelawat is not
available at this time. Once John has gotten it restored, I will
include the link in a future summary.
Jelawat's track in tabular format may be accessed at the following
URL:
B. Damage and Casualties
------------------------
Tropical Storm Jelawat brought heavy rainfall and flooding to
Guangdong and Guangxi Provinces. News reports indicate that seven people
were killed with one reported missing.
According to the Wikipedia report, Haikou, China, recorded 309.7 mm
of rainfall in association with Jelawat. Kampung, Malaysia, measured
220 mm of rain in 16 hours.
(Report written by Kevin Boyle)
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NORTH INDIAN OCEAN (NIO) - Bay of Bengal and Arabian Sea
Activity for June: No tropical cyclones
*************************************************************************
SOUTHWEST INDIAN OCEAN (SWI) - South Indian Ocean West of Longitude 90E
Activity for June: No tropical cyclones
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NORTHWEST AUSTRALIA/SOUTHEAST INDIAN OCEAN (AUW) - From 90E to 135E
Activity for June: No tropical cyclones
*************************************************************************
NORTHEAST AUSTRALIA/CORAL SEA (AUE) - From 135E to 160E
Activity for June: No tropical cyclones
*************************************************************************
SOUTH PACIFIC (SPA) - South Pacific Ocean East of Longitude 160E
Activity for June: No tropical cyclones
*************************************************************************
SPECIAL FEATURE - SOURCES OF TROPICAL CYCLONE INFORMATION
The purpose of this section is to list some websites where many and
varied types of tropical cyclone information are archived. Many readers
will know about these already, but for the benefit of those who don't,
I wanted to include them.
(1) Aircraft Reconnaissance Information
---------------------------------------
Various types of messages from reconnaissance aircraft may be
retrieved from the following FTP site:
Information regarding how to interpret the coded reconnaissance
messages may be found at the following URL:
Links are also included to websites with further information about the
U. S. Air Force 53rd Weather Reconnaissance Squadron and the NOAA Air-
craft Operations Center.
(2) Archived Advisories
-----------------------
All the advisory products (public advisories, forecast/advisories,
strike probabilities, discussions, various graphics) issued by TPC/NHC
are archived on TPC's website. For the current year (using 2004 as an
example), the archived products can be found at:
Links to tropical products archives for earlier years are available at
the following URL:
JTWC warnings for past storms are archived on the NRL Monterry website:
On the NRL site, the link to past years can be found in the upper left
corner of the screen.
I am not aware at the moment of any other TCWC which archives all
its tropical cyclone warning/advisory products for public access, but
if I learn of any, I will add them to this list.
(3) Satellite Imagery
---------------------
Satellite images of tropical cyclones in various sensor bands are
available on the NRL Monterrey and University of Wisconsin websites,
courtesy of Jeff Hawkins and Chris Velden and their associates. The
links are:
On the NRL site, the link to past years can be found in the upper left
corner of the screen. For the CIMSS site, a link to data archives is
located in the lower left portion of the screen.
Additional tropical satellite imagery, along with looping ability for
composite microwave imagery for the Western Hemisphere north of the
equator, can be found at:
(1) For the Eastern North Pacific:
(2) For the Atlantic, Gulf of Mexico and Caribbean Sea:
I'm sure there are other sites with available imagery available, and
as I learn of them, I will add the links to this list.
*************************************************************************
EXTRA FEATURE
In order to shorten the amount of typing in preparing the narrative
material, I have been in the habit of freely using abbreviations and
acronyms. I have tried to define most of these with the first usage
in a given summary, but I may have missed one now and then. Most of
these are probably understood by a majority of readers but perhaps a
few aren't clear to some. To remedy this I developed a Glossary of
Abbreviations and Acronyms which I first included in the August, 1998
summary. I don't normally include the Glossary in most months in
order to help keep them from being too long. If anyone would like to
receive a copy of the Glossary, please e-mail me and I'll be happy
to send them a copy.
*************************************************************************
AUTHOR'S NOTE: This summary should be considered a very preliminary
overview of the tropical cyclones that occur in each month. The cyclone
tracks (provided separately) will generally be based upon operational
warnings issued by the various tropical cyclone warning centers. The
information contained therein may differ somewhat from the tracking and
intensity information obtained from a "best-track" file which is based
on a detailed post-seasonal analysis of all available data. Information
on where to find official "best-track" files from the various warning
centers will be passed along from time to time.
The track files are not being sent via e-mail. They can be retrieved
from the archive sites listed below. (Note: I do have a limited e-mail
distribution list for the track files. If anyone wishes to receive
these via e-mail, please send me a message.)
Both the summaries and the track files are standard text files
created in DOS editor. Download to disk and use a viewer such as
Notepad or DOS editor to view the files.
The first summary in this series covered the month of October,
1997. Back issues can be obtained from the following websites
(courtesy of Michael Bath, Michael V. Padua, Michael Pitt, Chris
Landsea, and John Diebolt):
Another website where much information about tropical cyclones may
be found is the website for the UK Meteorological Office. Their site
contains a lot of statistical information about tropical cyclones
globally on a monthly basis. The URL is:
TROPICAL CYCLONE REPORTS AVAILABLE
JTWC now has available on its website the Annual Tropical Cyclone
Report (ATCR) for 2004 (2003-2004 season for the Southern Hemisphere).
ATCRs for earlier years are available also.
Also, TPC/NHC has available on its webpage nice "technicolor"
tracking charts for the 2004 Atlantic and Eastern North Pacific
tropical cyclones; also, storm reports for all the 2004 Atlantic
and Eastern North Pacific cyclones are now available, as well as
track charts and reports on storms from earlier years.
A special thanks to Michael Bath of McLeans Ridges, New South Wales,
Australia, for assisting me with proofreading the summaries.
PREPARED BY
*************************************************************************
*************************************************************************
Posted: 08.18.06 / Typhoon2000.ph, Typhoon2000.com