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| DAMAGING
GREGALE WIND - 24th
January 2008 |
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A fierce
northeasterly wind and rough seas caused by the
clash of a low pressure system to the southeast
of Malta and a strong high pressure system over
Europe (as can be seen in the synoptic map to
the right) lashed Malta throughout the day and
caused damage all along the east coast, with
boats slipping their moorings at St Pual's Bay,
St Julians and Sliema Creek. Tiles were
dislodged at The Strand promenade in
Sliema/Gzira. Some small boats in Spinola were
smashed to pieces. Winds were averaging Force 8
and gusting Force 10 in exposed areas. Our
weather station at Mellieha in fact measured
gusts by to 96.2km/h.
At the Jews Sally Port, below
the Valletta bastions, a Toyota Vitz was almost
washed away by the waves, which carried it onto
the rocks. The driver, a 70-year-old man from
Valletta, was lucky to escape unhurt, having
been assisted out of the car by SAG police who
happened to be on a patrol nearby. At St Julians
traffic had to be diverted because of seawater
on the road while at Marsascala a kiosk had
window panes broken and plastic chairs and
tables scattered over a wide area.
The police also reported that
a 59-year-old Italian resident of Naxxar was
injured in the afternoon when he was hit by a
water tank as he walked along High Street, St
Julians. He was taken to hospital where his
injuries were found not to be serious. The tank
is thought to have been blown by the wind. Photos of the
rough sea can
be viewed by clicking on the camera pic. |
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BRIEF SMALL TORNADO
- 18th January 2008 |
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On
18th January 2008, at
around 8.205am a small tornado was seen briefly to
the WNW of San Gwann for about 5 minutes. There
also was a report of the same tornado to
the southwest of Maghtab over Madliena. Yet
another report and photos show the tornado just
off the coast at Sliema at around 8.15am.
The clouds and tornado were
moving NE-SW. As can be seen from the
sounding and hodograph to the right there was an
unusual type of wind shear - anticlockwise wind
shear, but this was enough to create this brief
tornado. Weather at the time of the tornado was isolated showers with small hail -
there were no reports of any strong wind or
damage caused. Photos of the
funnel cloud can
be viewed by clicking on the camera pic. |
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HEAVY THUNDERSTORMS AND FLOODS
- 29th December 2007 |
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On
29th December 2007, in the
afternoon and throughout the
night, heavy rainfall
and thunderstorms caused
lots of flooding in the usual
low-lying areas of Malta and Gozo, with
some people having to be rescued from their
cars. Fields were flooded and some rubble walls
collapsed. Various telephone
connections were also damaged. The beach at
Ramla Bay in Gozo was carved out by the flood
waters. In excess of 100mm was recorded
within a period of 24 hours from noon of the
29th to noon of 30th December.
The highest rainfall was
recorded in Mellieha with 165.8mm. This heavy
rainfall was caused by a low pressure
system over the central Mediterranean
which was practically
stationary due to very light upper level winds.
Photos of the
hail can
be viewed by clicking on the camera pic. |
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SEVERE THUNDERSTORM
- 16th November 2007 |
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On 16th November 2007, in the
morning around 8.30am, a severe thunderstorm caused some havoc
in Gozo with heavy rain showers and large hail
about 1 inch in diameter. The large hail dented
cars and destroyed crops. A brief waterspout was
also seen from Gozo. Strong
lightning from this super cell cumulonimbus
cloud
was also present in various localities. Du ring
the storm gusts of 93.3km/h and 74.0km/h were recorded at
Mellieha and Zebbug Malta respectively.
The storms were caused due to strong wind shear
and very moist and unstable air over the Maltese
Islands. A warm and moist surface SSE
airflow together with a drier and cool upper air
westerly flow contributed to this severe weather. The
wind shear situation was in fact very
similar to that found in the USA in spring, as
can also be confirmed from the hodograph..
CAPE readings were over 1200J/kg with a lifted
index of -4.8 (click on sounding to the right).
Photos of the
hail can
be viewed by clicking on the camera pic. |
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STRONG WINDS DUE TO MEDITERRANEAN CYCLONE OVER
SICILY
- 22nd October 2007 |
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Gale force winds buffetted
the island on 22 October 2007, giving the Civil
Protection Department a busy time as trees were
uprooted and moored boats sank. The force eight
wind howled throughout the night as thunder and
lightening ripped through the sky. CPD head
Peter Cordina said his men were kept busy
clearing roads from fallen trees and branches.
One man had a lucky escape when his boat, moored
in St Julians, sank. "The man got onto
another boat to try and save his own, but
unfortunately that boat started to sink too," Mr
Cordina said. In the end, members of the CPD had
to come to his rescue. A number of other boats
were torn away from their moorings and met the
same fate, he said.

Three electricity poles were toppled over
during the night, a spokesman for Enemalta said.
The wind also pushed down a periphery wall
surrounding part of Mater Dei Hospital. On
Sunday night the police reported that branches
ripped off a tree fell onto a moving car and the
two occupants had to be treated for shock.
This strong WNW winds with
gusts of over 100km/h at Melieha was caused by a
Mediterranean Cyclone that formed over Sicily
due to the bitter cold northerly winds clashing
with the warm Mediterranean Sea.
Rainfall totals were not
especially high with mean rainfall only 22mm or
so, but at one time during this storm, around
10pm or so at Cirkewwa, it seemed like a
hurricane with torrential rainfall and very
strong winds, as witnessed by Mark and Chris.
Photos of the
storm can
be viewed by clicking on the camera pic. |
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LARGE WATERSPOUT TO THE NORTHEAST OF GOZO
- 20th OCtober 2007 |
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On 20th
October 2007, a
large waterspout was seen to the northeast of
Qala, Gozo at around 9.30am. This lasted about
10 minutes. The cloud that produced this
waterspout seemed to be a large cumulus as no
lightning strikes were reported from this
particular cloud. The was a negatively-tilted upper-level trough
to the north and speed shear was definitely
present (see sounding to the right). The lifted
index was of -3.0 with a CAPE of almost
1000J/kg. Sea temperature was a warm 23 °C.
This paticular cloud moved WNW-ESE and did not
affect any land area of the Maltese Islands. Photos of the
cloudy and its associated waterspout can
be viewed by clicking on the camera pic. |
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HEAVY THUNDERSTORMS
AND FLOODS
- 25th September 2007 |
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On 25th June 2007, a
short-wave upper-level trough produced an
Mesoscale Convective System (MCS) which passed
over the Maltese Islands during the early
morning causing heavy thundery rain
showers and blustery gusts especially over Gozo.
Cars with people inside were carried away by the
flood waters at Bahar ic-Caghaq, while strong
gusts broke off some big tree branches in Gozo
between Nadur and Victoria. Some big boulders at
Dahlet Qorrot in Gozo were dislodged by the rain
and these crashed down in front of some boat
houses. Luckily no one was injured in any of
these incidents.
Today’s heavy
rainfall and thunderstorms were caused due t o
an short-wave upper-level low pressure system
which passed quickly over the
central Mediterranean bringing relatively cold
air over a warm sea, creating a great deal of
instability with lots of clouds and heavy rain
showers and thunderstorms.
There was lots of moisture in the atmosphere and
the lifted index was of -5.8 and CAPE of 1751J/Kg
(click on sounding to the right). Some rainfall totals for this
storm
(from around 5am to 10pm) for some localities
were: Bahar ic-Caghaq 40.8mm, Kalkara 30.6mm,
Zurrieq 30.4mm, Nadur 50.4mm, Zebbug Gozo 50.8mm,
Gharb 59.8mm.
Photos of the
storm can
be viewed by clicking on the camera pic. |
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HEAVY THUNDERSTORMS
AND FLOODS
- 4th June 2007 |
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On 4th June 2007, heavy rain
showers and thunderstorms struck Malta causing
lots of flooding in
the usual low-lying areas of Malta with cars
being carried away by the flood waters
too. Some small hail also fell in a few localities.
Photos of an uncofirmed funnel clouds can also
be seen in the photo gallery.
Today’s heavy
rainfall and thunderstorms were caused due t o
an upper-level low pressure system over the
central Mediterranean bringing relatively cold
air over a warm sea, creating a great deal of
instability with lots of clouds and heavy rain
showers and thunderstorms.
There was lots of moisture in the atmosphere and
the lifted index was of -3.1 and CAPE of 884J/Kg
(click on sounding to the right). Worst hit were
the extreme south and the central parts of the
island. Some rainfall totals for the whole day
(from around 9am to 6pm) for some localities
were: Zurrieq 99.2mm, Bahar ic-Caghaq 97.8mm,
Iklin 90.0mm, San Gwann 83.9mm, Naxxar 76.0mm,
Qormi 73.8mm, Balzan 68.0mm, Msida 63.6mm,
Siggiewi 62.6mm. Gozo had hardly any rain!
This storm broke all records for June and has
already made June 2007 the wettest June ever
since rainfall records began in Valletta in
1865! The previous wettest June was in 1915 with
34.5mm of rainfall.
Photos of the
storms and floods can
be viewed by clicking on the camera pic. |
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SEVERE THUNDERSTORMS
- 24th December 2006 |
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On 24th December 2006, in the
morning, severe thunderstorms caused some havoc
in Malta with heavy rain showers and flooding in
the usual low-lying areas of Malta. Strong
lightning and large h ail
was also present in various localities. Hail at
least one inch in size (see photo) fell in Gzira
damaging some cars parked there. There was also
a report of a funnel cloud close to the airport.
Gusts of 82km/h were recorded at Zebbug and
88.5km/h at Mellieha.
The storms were caused due to strong wind shear
and very moist and unstable air over the Maltese
Islands. A warm and moist surface southeasterly
airflow together with a drier and cool upper air
flow contributed to this severe weather. The
wind shear situation was in fact very
similar to that found in the USA in spring.
CAPE readings were over 900J/kg with a lifted
index of -4.6 (click on sounding to the right).
Photos of the
storms and damage can
be viewed by clicking on the camera pic. |
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SEVERE THUNDERSTORM
- 5th October 2006 |
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An
isolated thunderstorm moving in from the
northwest affected the Maltese Islands, especially
Gozo, where heavy rain caused severe flooding
and an unconfirmed tornado at Xlendi. An
unconfirmed tornado was also reported at
Golden Bay, while 1cm hail was reported at
Qrendi. Winds were very strong during this
storm with a gust of 107km/h (57 knots) at
Mellie ha
at around 4.10pm. The unconfirmed brief
tornado at Xlendi uprooted some trees
and brought down a few rubble walls. The small
sandy beach at Xlendi was also practically
washed away by the floodwaters. The
heaviest rainfall was reported in Zebbug
86.2mm, Marsalforn 54.0mm, Victoria 41.0mm and
Sannat 34.4mm. A relatively weak dry line oriented
southwest-northeast was present together with
a lifted index of -6.6 and a CAPE of over
2000J/kg. The hodograph was oriented
southwest-northeast too indicating that a good
wind shear was present (click on sounding to
the right). Photos of the
damage at Xlendi can
be viewed by clicking on the camera pic.
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WATERSPOUT OVER ST THOMAS BAY
- 18th July 2006 |
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An
isolated thunderstorm moving in from the
northeast affected the extreme northeast of
Malta, especially Marsascala, Zabbar and the
Cottonera area. Heavy rainfall was measured in
these areas lasting for about 2 hours in
Marsascala from 11.30am to 1.30pm. Rainfall
measured was 46.0mm at Marsascala, 28.2mm at
Vittoriosa and 25.0mm at Zabbar. A waterspout
lasting about 10 minutes was also seen over St Thomas Bay, Marsascala
at around 11.45am. This
storm was caused due
to a dry line that was oriented
northwest-southeast, denoting a sharp contrast
between very humid air on one side and much
drier air on the other side. During this storm
it was noted that the wind was blowing from
the southwest over much of Malta, with gusts
up to 33.3km/h at Zebbug at 12.12pm (during
the height of the storm). This definitely
helped the inflow into this storm. Photos of the
waterspout at St Thomas Bay can
be viewed by clicking on the camera pic.
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STORM FORCE 11 WINDS
- 1st February 2006 |
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It
was extremely windy from late 31st January
till early 1st February as a low pressure
system moving slowing to our east intensified
suddenly to 993hPa, causing very strong
northeasterly winds over the Maltese Islands.
Highest gusts
were
81.4km/h at the
Airport, 70.3km/h at
Rabat, 75.9km/h at
Msida, 82.0km/h at
Nadur, and at
Mellieha an extremely high gust of
109.2km/h (Force 11)!
Winds were averaging Force 9 gusting Force 11
over exposed areas of the Maltese Islands.
It was inevitable that such strong winds would
cause damage in several areas. Civil
Protection Department chief Peter Cordina said
that the department had received reports of
uprooted trees, electricity cables and poles,
collapsed stone rubble walls and twisted
television aerials.
A car suffered extensive damage when a tree
fell onto it, although no one was injured, and
part of the wall in the Regional Road tunnel
in the direction of Swieqi was also damaged. Photos of the
rough seas on this day can
be viewed by clicking on the camera pic.
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TORNADO AND FLOODING
- 13th December 2005 |
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Malta once again bore the
brunt of heavy rain and
thunderstorms as roads flooded on Tuesday
morning. Albeit
being a public holiday, this morning's heavy
rain caught many people by surprise, bringing
the traffic to a standstill in many areas.
During the storm, the emergency number was down,
the police said. A
tornado was also reported at Marsascala in the
early morning.
Photos of the damage
caused by this tornado can
be viewed by clicking on the camera pic.
During the heavy downpour, which began just
after 0500CET, an average of
55.1
millimeters of rain fell in
approximately four hours.
In fact, the highest rainfall
was at Msida with 91.5mm. Several roads
were closed, as a number of areas known for
flooding problems were temporarily cut off.
These included Msida, Balzan, Birkirkara, Marsa
and areas in the south of Malta.
Members of the Civil Protection Department and
Armed Forces personnel braved the heavy rain to
assist people, mainly motorists, who found
themselves in difficulty whilst driving through
flooded areas. An official spokesman for the
Civil Protection Department said that a house in
Gzira collapsed and a big wall in Valley Road
was knocked down by flood waters. No one was
injured.
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ALMOST SEVERE THUNDERSTORM - 22nd November
2005 |
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A
thunderstorm affecting mainly Gozo and Mellieha
early this afternoon produced heavy rainfall,
hail up to 1.5cm large (if the hail had been
just 4mm larger it would have qualified as a
severe thunderstorm!) and strong gusts of wind.
Rotation of the cloud base was also noted.
Photos of this hail can
be viewed by clicking on the camera pic.
Rainfall from this storm was estimated at around
10mm.
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POSSIBLE BRIEF TORNADO AT ST PAUL'S BAY - 19th
November 2005 |
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A
thunderstorm with gusts up to 43.5 knots (80.3
km/h) at Mellieha hit the Maltese Islands early
this morning. The thunderstorm passed at around
6.30am but did not last long. Lightning was
rather strong and flooding was reported in
various localities, such as B'Kara and Msida. A
high garden boundary wall in St Paul's Bay was
demolished by an alleged brief tornado, according to maltarightnow.com. Highest rainfall was in
Valletta with 10.8 mm.
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STRONG THUNDERSTORM
HITS MALTA - 4th October 2005 |
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A thunderstorm hit the
Maltese islands early in the
morning, bringing with it torrential
rainfall and severe lightning
with lightning strikes hitting Mellieha and
Nadur. The rains caused flooding on parts
of the islands,
leaving motorists stranded in their vehicles,
reports Malta Media. To assist them, members of
the Civil Protection Department were dispatched,
as well as being on-hand to offer help with the
traffic congestion caused. The timing of the
storm did not help, with many caught up in the
morning rush-hour when the heavy rain hit.
Several valleys were also flooded during the
storm. The Civil
Protection Department assisted about 50 people
including a group of students in Birkirkara, who
were waiting for school transport during the
heavy downpour. In Siggiewi, the
newly-constructed road - which formed part of
the 16kilometres of roads financed by the Fifth
Italian Protocol -- overflowed with waste water
as the water lifted all the manhole covers. In
Hamrun, the ceiling of a house collapsed but no
one was injured. Strong straight-line
gusts of 44.0 knots (81.4 km/h) were recorded at Luqa Airport and Rabat during the storm.
Highest rainfall was 82.2 mm at Nadur, Gozo.
Click on the camera pic
above to view photos taken of this storm from
Xlendi, Gozo.
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SUDDEN SQUALL LINE STRONG WINDS - 3rd August
2005 |
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Many
areas of the Maltese Islands were hit by a
squall line, where the wind changed direction
and increased in speed very quickly. At one
time gusts were reaching 37.8 knots (70km/h).
It was around 7.50am when the calm summer
atmosphere took a sudden turn for the worse
when the light southeasterly wind was replaced
by a very strong northwesterly wind, together
with some isolated rain showers, low clouds
and even some fog. The strong wind shocked
some people as they heard their shutters
banging and saw outside furniture and potted
plants tossed around. Large trees were also
swaying in the strong wind. This however
lasted just 6 minutes or so. |
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POSSIBLE TORNADO AT SAFI - 25th May 2005 |
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An
alleged tornado was reported by
maltarightnow.com at Safi early in the
afternoon today. The alleged tornado only
lasted a few moments and developed while some
parents were waiting for their children at the
local primary school. Witnesses said that the
wind increased suddenly and lots of dust and
bits and pieces were blown into the air, while
others found it difficult to walk and had to
shelter behind a wall. No damage was reported.
This website concludes that this was more
likely to be a strong straight-line wind
rather than a tornado. |
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