Reports

Reports, Updates

June so far / Ġunju sa issa

With an average high of 29.7 C and an average low of 20.7 C, June 2019 has so far been more than 2 C warmer than normal. That’s more than the 0.25 C forecast at the start of the month. The maximum temperature so far this month was reached on the 9th, when it had soared to a sweltering 37 C. That was just more than 10 C hotter than the mean for that time of year. With a low of 25 C, the following night was the warmest so far this month. Having reached mid-month, we can safely say that June 2019 is now following the same pattern as in June 2012 and June 2017, two years with very hot summers. Just two weeks ago, many were fearing that there would be no summer this year. This fear was for very good reason too, as the beginning of June was one of the most unsettled on record.

In contrast to what long-term maps showed some weeks ago, the latest versions almost all agree that summer will be hotter than average by at least 1 C. Precipitation will be very close to average. An average summer is completely to almost completely dry. The hottest part of this year’s summer is expected to be around mid-August.

B’medja massima ta’ 29.7 C u medja minima ta’ 20.7 C, Ġunju 2019 kien aktar minn 2 C aktar sħun minn normal sa issa. Dan jaqbeż iż-0.25 C li kien imbassar fil-bidu tax-xahar. L-aktar temperatura għolja sa issa dan ix-xahar laħqet 37 C u kienet imkejjla fid-9 tax-xahar. Dan qabeż il-medja għal dan iż-żmien tas-sena b’10 C. Bl-anqas ta’ 25 C, il-lejl ta’ wara kien l-aktar sħun ta’ dan ix-xahar. Hekk kif wasalna f’nofs ix-xahar, nistgħu nikkonkludu li Ġunju 2019 qed isegwi l-istess sinjali ta’ Ġunju 2012 u Ġunju 2017, sentejn li fihom esperjenzajna sjuf sħan ferm. Sa ħmistax ilu biss, ħafna kienu ħasbu li kienet se tkun sena bla sajf. Kien bir-raġuni wkoll, peress li l-bidu ta’ Ġunju ta’ din is-sena kien mill-aktar instabbli.

B’differenza lejn kif mudelli tat-temp kienu qed juru ġimgħat ilu, dawk aktar riċenti qed jaqblu li dan is-sajf għandu jkun qieħed aktar sħun minn normal, saħansitra b’aktar minn 1 C. It-total ta’ xita se jkun ħafna qrib il-medja. Jekk inħarsu lejn sajf tipiku Malti, ftit li xejn ikollna xita fih. L-aktar parti taħraq ta’ dan is-sajf għandha tkun lejn nofs ix-xahar ta’ Awwissu.

End of Month Reports

Cooler and Wetter in May 2019

Air Temperature

Highest Maximum 24°C 11th, 24th, 25th and 29th
Lowest Maximum 18°C 6th, 7th and 16th
Highest Minimum 17°C 26th, 28th and 29th
Lowest Minimum 12°C 3rd, 8th and 17th

 

Mean Maximum 21.0°C
Mean Minimum 14.0°C
Mean 17.5°C

 

Relative Humidity

Highest Relative Humidity 73% 2nd and 3rd
Lowest Relative Humidity 29% 22nd

 

Mean Relative Humidity 61.0%

 

Atmospheric Pressure

Highest Atmospheric Pressure 1022.0hPa 30th
Lowest Atmospheric Pressure 1000.0hPa 4th

 

Mean Atmospheric Pressure 1014.0hPa

 

Wind

Highest Gust 68km/h 6th

 

Mean Wind Speed 12km/h
Mean Gust Speed 30km/h
Mean Wind + Gust Speed 21.5km/h
Most Frequent Wind Direction Northwest

 

Precipitation

Total Rainfall During May 2019 21.1 mm
Total Rainfall Since Last 01/09 503.7 mm

 

Highest 24 Hour Total 7.8 mm 3rd

 

Rain Days 8
Thunderstorm Days 4
Hail Days 0

 

Rainfall Events

03/05/2019 7.8 mm Showers
04/05/2019 0.5 mm Thunderstorm
12/05/2019 2.5 mm Thunderstorm
13/05/2019 0.3 mm Light Rain
14/05/2019 2.3 mm Light Rain
16/05/2019 5.6 mm Thunderstorm
26/05/2019 1.8 mm Thunderstorm
30/05/2019 0.3 mm Light Rain

 

May 2019 Compared to the Climate Means 

  Climate Mean May 2019 Anomaly
Mean Maximum Temperature 23.9°C 21.0°C -2.9°C
Mean Minimum Temperature 15.7°C 14.0°C -1.7°C
Mean Temperature 19.8°C 17.5°C -2.3°C
Mean Relative Humidity 74% 61% -13%
Mean Atmospheric Pressure 1015.3hPa 1014.0hPa +1.3hPa
Mean Wind Speed 17.0 km/h 21.5km/h +4.5km/h
Most Frequent Wind Direction Northwest Northwest Nil
Total Rainfall 10.6 mm 21.1 mm +10.5 mm
Total Rainfall Since Last 01/09 572.3 mm 503.7 mm -68.6 mm
Total Rain Days 3 5 +2
Total Thunderstorm Days 1 2 +1
Total Hail Days 0 0 0


Cooler and Wetter in May 2019

May 2019 was rather cool, as below-average temperatures were recorded throughout. The mean maximum temperature of 23.9°C was exceeded on only 4 days out of 31 days. Overall, the air temperature was 2.3°C colder than the norm. Once again, the biggest margin from the mean was registered by the daytime highs. May 2019 was infact one of the coldest ever. Unseasonal anticyclones over Scandinavia persisted throughout the month. This deflected bad weather towards the Mediterranean. This bad weather brought with it frequent blasts of cold air from the north, allowing temperatures to remain colder than average throughout.

Total rainfall measured at our weather station in Għarb, at 21.1 mm was above the mean for this time of year. The number of days with rain and thunderstorms, at 8 and 4 respectively, were also greater than the norm. This observation is also the result of prevailing anticyclones over Scandinavia, deviating bad weather to the south.

A number of windy days dotted May. Winds were significantly stronger than the average for May. The wind reached Force 6 or higher on 6 days. This was the consequence of air moving from high pressure over Scandinavia towards successive low pressure systems traversing the Mediterranean. The prevailing wind direction was the Northwest. The strongest wind gust was of 68 km/h, registered on the 6th.

 

Reports

Chance of isolated thunderstorm / Ċans ta’ maltempata bir-ragħad iżolata

A rapidly disentegrating low pressure system will reach the central Mediterranean from over southern Italy. With it is an occluded front. This will be influencing the weather in the Maltese Islands from late on Monday 13/05 till around noon on Tuesday 14/05. Occluded fronts are associated with mature low pressure areas. There are two types of occlusion; warm and cold. In our case, it will be a cold occlusion. In a cold occlusion, an advancing mass of cold air will have caused a mass of warm air to rise completely and be cut-off from the Earth’s surface. When this happens, the warm air is cut-off from surface-based sources of moisture. A variety of weather can be found along occluded fronts, with thunderstorms being a possibility. Their passage is normally associated with the drying of the air mass, and thus, a minimal amount of rainfall.

A few isolated possibly briefly heavy, thundery and with hail at times may affect parts of the Maltese Islands overnight and in the morning of Tuesday 14/05. Total rainfall is will likely be less than 10 mm, even in the hardest hit areas. Temperatures may dip to below 13 C in areas affected by hail. Real-feels may fall below 10 C. The meteorological situation will improve in the afternoon on Tuesday 14/05, albeit with a Force 4/5 wind from the West Northwest.

Sistema ta’ pressjoni baxxa li kull ma jmur qed tiddgħajjef se tilħaq iċ-ċentru tal-Mediterran minn fuq l-Italja ta’ isfel. Abbinat magħha se jkun hemm front ta’ okklużjoni. Dan se jkun qed jinfluwenza t-temp tal-Gżejjer Maltin minn tard it-Tnejn 13/05 sa madwar nofsinhar tat-Tlieta 14/05. Front ta’ okklużjoni huwa normalment assoċjat ma’ sistema ta’ pressjoni baxxa matura. Hemm żewġ tipi ta’ front ta’ okklużjoni; kiesaħ u sħun. Fil kas tagħna, se jkun wieħed kiesaħ. Fi front ta’ okklużjoni kiesaħ, massa ta’ arja kiesħa tkun imbuttat massa ta’ arja sħun il-fuq, b’ tali mod li din ta’ l-aħħar tinqata mill-art kumpletament. Meta jiġri dan, l-arja sħuna tinqata minn mas-sors ta’ ilma kumpletament , u b’hekk tibda titlef l-ilma. Front ta’ okklużjoni huwa assoċjat ma’ varjeta ta’ temp, b’maltempati bir-ragħad tkun waħda mill-possibilitajiet. Peress li front ta’ okklużjoni ikun qed jitlef mill-ilma, kapaċi jipproduċu biss xita f’ammonti żgħar.

Xi ħalbiet iżolati tax-xita possibilment qawwijin, bir-ragħad u silġ għal ftit ħin kultant jistgħu jaffetwaw lil Gżejjer Maltin billejl u filgħodu tat-Tlieta 14/05. It-total ta’ xita probabli mhux se jaqbeż l-10 mm, anke fl-aktar inħawi milquta. It-temperaturi jistgħu jinżlu taħt 13 C fl-inħawi milquta mis-silġ. It-temperatura tkun tinħass daqs li kieku 10 C. Is-sitwazzjoni metejoroloġika se taqleb għal aħjar wara nofsinhar tat-Tlieta 14/05, għalkemm b’riħ Forza 4/5 mill-Punent Majjistru.

Reports

Wet and windy for Mothers’ Day / Imxarrab u mirjieħ għal Jum l-Omm

A cold front associated with a low pressure system over central Italy will be traversing the central Mediterranean on Sunday 12/05. This year’s Mothers’ Day promises to be a wet and windy one. The main influence of this cold front will be a plunge in air temperature. From a 26 C high on Saturday 11/05, it will struggle to reach 21 C on Sunday 12/05. The minimum temperature will dip to 14 C. That is 3 C lower than the average for this time of year. The crossing of this cold front will also mean a strong wind from the West Northwest to Northwest for the Maltese Islands. It will reach Force 5/6 from around noon on Sunday 12/05 onward. Finally, there is also the chance for some isolated showers. Rain will be possible at any time during the day, with the greatest chance being in the morning and early afternoon. It will be mainly light, but could become briefly heavy and thundery from time to time. Monday 13/05 will see similar weather conditions. It will then become mainly sunny, but remain rather windy, from Tuesday 14/05 onward, as the Maltese Islands face an unstable week.

Front kiesaħ assoċjat ma’ sistema ta’ pressjoni baxxa fuq iċ-ċentru tal-Mediterran mistenni lgħaddi minn fuq iċ-ċentru tal-Mediterran nhar il-Ħadd 12/05. Jum l-Omm jaf ikun wieħed imxarrab u mirjieħ. L-effetti prinċipali ta’ dan il-front kiesaħ hija temperaturi ferm aktar kesħin. Minn l-ogħla ta’ 26 C nhar is-Sibt 11/05, it-temperatura se tbati biex tilħaq 21 C il-Ħadd 12/05. L-anqas temperatura se tkun ta’ 14 C. Dan huwa 3 C anqas mill-medja għal dan iż-żmien tas-sena. Dan il-front kiesaħ se jfisser ukoll riħ qawwi mill-Punent Majjistru għal Majjistral għal-Gżejjer Maltin. Dan se jilħaq Forza5/6 minn madwar nofsinhar tal-Ħadd 12/05 ‘il quddiem. Fl-aħħar nett, se jkun hemm iċ-ċans ta’ ħalbiet iżolati tax-xita. Ix-xita se tkun possibli f’kwalunkwe ħin , biċ-ċans ikun l-ogħla filgħodu u kmieni wara nofsinhar. Din se tkun fil-maġġor parti ħafifa, imma taf issir qawwija u bir-ragħad minn ħin għal ieħor. It-Tnejn 13/05 mistenni jkun ikkaratteriżżat minn temp simili. Minn nhar it-Tlieta 14/05 ‘il quddiem, it-temp se jsir il-biċċa l-kbira xemxi, imma jibqa ferm mirjieħ, hekk kif il-Gżejjer Malti qed jiffaċjaw ġimgħa ta’ temp instabbli.

End of Month Reports

Cooler and Drier in April 2019

Air Temperature

Highest Maximum 27°C 23rd
Lowest Maximum 15°C 1st and 2nd
Highest Minimum 16°C 25th
Lowest Minimum 10°C 1st and 8th

 

Mean Maximum 17.0°C
Mean Minimum 11.8°C
Mean 13.9°C

 

Relative Humidity

Highest Relative Humidity 78% 6th
Lowest Relative Humidity 24% 23rd

 

Mean Relative Humidity 72.0% ed-hrvatski.com

 

Atmospheric Pressure

Highest Atmospheric Pressure 1024.1hPa 19th
Lowest Atmospheric Pressure 1013.2hPa 21st

 

Mean Atmospheric Pressure 1019.3hPa

 

Wind

Highest Gust 68km/h 19th

 

Mean Wind Speed 12km/h
Mean Gust Speed 31km/h
Mean Wind + Gust Speed 21.5km/h
Most Frequent Wind Direction Southeast

 

Precipitation

Total Rainfall During April 2019 27.5 mm
Total Rainfall Since Last 01/09 482.6 mm

 

Highest 24 Hour Total 19.1 mm 5th

 

Rain Days 5
Thunderstorm Days 0
Hail Days 2

 

Rainfall Events

04/04/2019 1.8 mm Light Rain
05/04/2019 19.1 mm Thunderstorm
07/04/2019 4.3 mm Isolated Showers
14/04/2019 2.0 mm Isolated Showers
22/04/2019 0.3 mm Thunderstorm


April 2019 Compared to the Climate Means
 

  Climate Mean April 2019 Anomaly
Mean Maximum Temperature 19.6°C 17.0°C -2.6°C
Mean Minimum Temperature 12.5°C 11.8°C -0.7°C
Mean Temperature 16.2°C 13.9°C -2.3°C
Mean Relative Humidity 77% 72% -5%
Mean Atmospheric Pressure 1014.3hPa 1019.3hPa +5.0hPa
Mean Wind Speed 18.9 km/h 21.3km/h +2.4km/h
Most Frequent Wind Direction Northwest Southeast 135°
Total Rainfall 23.2 mm 27.5 mm +4.3 mm
Total Rainfall Since Last 01/09 561.7 mm 474.2 mm -87.5 mm
Total Rain Days 6 5 -1
Total Thunderstorm Days 1 2 +1
Total Hail Days 1 0 0


Cooler and Drier in April 2019

The air was significantly cooler than average over much of last month. Overall, air temperatures were 2.3°C colder than normal. The biggest difference from the average was registered by the daytime temperature (2.6°C cooler than usual). Nights were not as cold (0.7°C cooler than the norm). This could attributed to the fact that April was characterised by several days of overcast skies and airborne fine desert sand. In this case, light from the Sun would be reflected off the clouds and airborne fine desert sand back into space, preventing the air at ground level from heating up. Finally, temperatures returned to normal in the final week of April. The hottest day was the 23rd with a 27°C high. Conversely, the coldest was at 10°C  on the 1st and 8th.

Total rainfall measured at our weather station in Għarb, at 27.5 mm was below the mean for this time of year. April started off promisingly with regards to precipitation. 25.2 mm (or 91%) of April’s rainfall total fell in the first week of the month. The rest fell in light showers which deposited copious amounts of fine desert sand.

A number of windy days dotted the month of April. Winds were significantly stronger than the average for April. The wind reached Force 6 or stronger on 10 days. This is the Maltese Islands were caught up between high and low pressure systems several times. The strongest gust was of 68 km/h, registered on the 19th. The prevailing wind direction was from the Southeast. This was the result of successive north African low pressure systems passing by us.

End of Month Reports

Cooler Days but Warmer Nights in March 2019

Air Temperature

Highest Maximum 22°C 8th, 9th and 18th
Lowest Maximum 14°C 12th and 27th
Highest Minimum 14°C 20th
Lowest Minimum 10°C 4th, 21st, 27th and 28th

 

Mean Maximum 17.0°C
Mean Minimum 11.8°C
Mean 13.9°C

 

Relative Humidity

Highest Relative Humidity 75% 6th
Lowest Relative Humidity 28% 8th

 

Mean Relative Humidity 64.0%

 

Atmospheric Pressure

Highest Atmospheric Pressure 1028.1hPa 10th
Lowest Atmospheric Pressure 1013.2hPa 21st

 

Mean Atmospheric Pressure 1019.3hPa

 

Wind

Highest Gust 85.0km/h 12th

 

Mean Wind Speed 12.6km/h
Mean Gust Speed 29.9km/h
Mean Wind + Gust Speed 21.3km/h
Most Frequent Wind Direction Northwest

 

Precipitation

Total Rainfall During March 2019 56.8 mm
Total Rainfall Since Last 01/09 455.1 mm

 

Highest 24 Hour Total 27.4 mm 21st

 

Rain Days 6
Thunderstorm Days 1
Hail Days 1

 

Rainfall Events

02/03/2019 polska-ed.com 0.5 mm Isolated Shower
06/03/2019 0.5 mm Fog and Dew
10/03/2019 0.3 mm Fog and Dew
12/03/2019 0.3 mm Isolated Shower
15/03/2019 2.0 mm Light Rain
18/03/2019 0.3 mm Fog and Dew
21/03/2019 27.4 mm Thunderstorm
22/03/2019 2.5 mm Light Rain
24/03/2019 0.3 mm Fog and Dew
27/03/2019 22.7 mm Steady Rain

 

March 2019 Compared to the Climate Means

  Climate Mean March 2019 Anomaly
Mean Maximum Temperature 17.3°C 17.0°C -0.3°C
Mean Minimum Temperature 10.7°C 11.8°C +1.1°C
Mean Temperature 14.0°C 14.4°C +0.4°C
Mean Relative Humidity 79% 64.0% -15.0%
Mean Atmospheric Pressure 1016.1hPa 1019.3hPa +3.2hPa
Mean Wind Speed 18.9 km/h 21.3km/h +2.4km/h
Most Frequent Wind Direction Northwest Northwest
Total Rainfall 40.7 mm 56.8 mm +16.1 mm
Total Rainfall Since Last 01/09 538.5 mm 455.1 mm -83.4 mm
Total Rain Days 9 6 -3
Total Thunderstorm Days 2 1 -1
Total Hail Days 1 1 0

 

 Cooler Days but Warmer Nights in March 2019

Daytime highs last month were colder than normal (by 0.3°C at 17.0°C). Conversely, nighttime lows were warmer than average (by 1.1°C at 11.8°C). Overall, March 2019 was warmer than average by 0.4°C, with a value of 14.4°C. The warmest temperature in March 2019 clocked in at 22°C and was measured on a number of days, mainly in the first half of the month. The low of the month, of 10°C, was measured on three nights towards the end of the month.

For yet another month, winds were significantly stronger than average. It reached Force 8 on six days. The strongest was recorded at 85.0 km/h (Force 9) on March 13th. Most days were characterised by a Northwest wind. This conforms with the climate mean.

Total rainfall measured at our weather station in Għarb exceeded the norm for this time of year. With a total of 56.8 mm, March 2019 was wetter than average by 40%. 50.1 mm of this fell during two major rainfall events. These consisted of a thunderstorm on the 21st and periods of steady rain on the 27th. Thunder and hail affected us only during the thunderstorm on the 21st.

Reports

Weekly Outlook (18/03/2019 to 24/03/2019)

As promised, the Maltese Islands enjoyed a weekend of uninterrupted bright sunshine. High pressure which has taken hold of the central Mediterranean will prevail till late on Monday 18/03. This means another day of gloriously warm sunshine to start off the week. This high pressure will retreat south on Tuesday 19/03, however, when an area of low pressure will develop over the central Mediterranean. This will mark the brief return of wintry weather; with rain/hail showers, strong Northeasterly winds and cooler temperatures returning to the Maltese Islands. The worst of it all is expected on Thursday 21/03, when the Northeast wind should reach Force 7/8 across exposed areas of our country. This state of affairs will prevail till Friday 22/03. High pressure will once again take hold of the central Mediterranean over the weekend, promising another weekend of bright sunshine. Air temperatures will also rise again, as southerly winds blow warm air from over north Africa towards our region. This is expected to be the third heat spell of the season.

Taking a look at the weather across the Maltese Islands over the coming week, the average maximum temperature will be around 19°C, with a high for the week peaking at 22°C expected on Monday 18/03. Meanwhile, the average minimum temperature will be 12°C, dipping to its lowest in the mornings of Saturday 23/03 and Sunday 24/03 at 11°C. This week will see some significant precipitation, with rain/hail showers expected from late on Tuesday 19/03 till early on Friday 22/03. Thursday 21/03 will be the wettest, with over 10 mm. Winds are expected to be strong to very strong from the East to East Northeast on Wednesday 20/03, Thursday 21/03 and Friday 22/03, with the strongest expected on Thursday 21/03. The rest of the days will be characterised by a light breeze from the West.

Reports

GALE-FORCE WIND WARNING / TWISSIJA TA’ RIEFNU

A cold front will move across the Maltese Islands at dawn on Thursday 14/03. Meanwhile, an area of high pressure will remain almost stationary over the western Mediterranean. This meteorological situation will be generating a gale from the West Northwest across the central Mediterranean. This gale-force wind warning is valid from 03:00 on Thursday 14/03 till 00:00 on Friday 15/03. This will be updated when necessary. The details below describe how the situation will develop over this time period.

 

Thursday 14/03

03:00 to 06:00 – West Northwest Force 6/7

06:00 to 09:00 – West Northwest Force 7/8

09:00 to 12:00 – West Northwest Force 7/8

12:00 to 15:00 – West Northwest Force 7/8

15:00 to 18:00 – West Northwest Force 7/8

18:00 to 21:00 – West Northwest Force 7/8

21:00 to 00:00 – West Northwest Force 7/8

 

Friday 15/03

00:00 to 03:00 – Northwest Force 6/7

03:00 to 06:00 – Northwest Force 6/7

06:00 to 09:00 – Northwest Force 7/8

09:00 to 12:00 – Northwest Force 7/8

12:00 to 15:00 – Northwest Force 7/8

15:00 to 18:00 – Northwest Force 7/8

18:00 to 21:00 – Northwest Force 6/7

21:00 to 00:00 – Northwest Force 6/7

 

The peak gusts will blow across the Maltese Islands during the evening of Thursday 14/03. On Saturday 16/03, the wind will decline gradually to become Force 3/4, and turn South by evening.

The sea will be very rough, with wave heights of up to 5.0 metres in peak gusts. The swell will be a low Northwest. The map shows the area of coastline most exposed to this strong wind.

 

Front ta’ arja kiesħa se jgħaddi minn fuq iċ-ċentru tal-Mediterran qabel sebħ il-jum nhar il-Ħamis 14/03. Sadattant, roqgħa ta’ arja bi pressjoni għolja mistennija żżomm stazzjonarja fuq il-punent tal-Mediterran. Din is-sitwazzjoni metejoroloġika se tiġġenera riefnu mill-Punent Majjistru madwar iċ-ċentru tal-Mediterran. Din it-twissija ta’ riefnu ser tkun fis-seħħ minn 03:00 tal-Ħamis 14/03 sa 00:00 tas-Sibt 16/03. Din it-twissija se tkun aġġornata jekk ikun hemm bżonn. Id-dettalji ta’ hawn isfel jiddeskrivu kif għandha tiżviluppa s-sistema matul il-ħin imsemmi.

 

Il-Ħamis 14/03

03:00 sa 06:00 – Punent Majjistru Forza 6/7

06:00 sa 09:00 – Punent Majjistru Forza 7/8

09:00 sa 12:00 – Punent Majjistru Forza 7/8

12:00 sa 15:00 – Punent Majjistru Forza 7/8

15:00 sa 18:00 – Punent Majjistru Forza 7/8

18:00 sa 21:00 – Punent Majjistru Forza 7/8

21:00 sa 00:00 – Punent Majjistru Forza 7/8

 

Friday 15/03

00:00 sa 03:00 – Majjistral Forza 6/7

03:00 sa 06:00 – Majjistral Forza 6/7

06:00 sa 09:00 – Majjistral Forza 6/7

09:00 sa 12:00 – Majjistral Forza 6/7

12:00 sa 15:00 – Majjistral Forza 6/7

15:00 sa 18:00 – Majjistral Forza 6/7

18:00 sa 21:00 – Majjistral Forza 6/7

21:00 sa 00:00 – Majjistral Forza 6/7

 

Il-buffuri l-aktar qawwijin mistennija jaffetwaw lil Gżejjer Maltin matul filgħaxija talĦamis 14/03. Nhar is-Sibt 16/03, ir-riħ mistenni jnaqqas bilmod biex isir Forza 3/4, u jsir Nofsinhar, sa filgħaxija.

Il-baħar se jkun qawwi ħafna b’mewġ ogħli 5.0 metri fl-aktar buffuri qawwijin. L-imbatt se jkun ħafif mill-Majjistral. Il-mappa tindika l-kosta l-aktar esposta għal dan ir-riħ.

 

Reports

GALE-FORCE WIND WARNING / TWISSIJA TA’ RIEFNU

A weak cold front will move across the Maltese Islands on Monday 11/03. Meanwhile, an area of high pressure will develop over the western Mediterranean. This meteorological situation will be generating a gale from the West Northwest across the central Mediterranean. This gale-force wind warning is valid from 18:00 on Monday 11/03 till 18:00 on Tuesday 12/03. This will be updated if and when necessary. The details below describe how the situation will develop over this time period.

Monday 11/03

18:00 to 21:00 – West Northwest Force 6/7

21:00 to 00:00 – West Northwest Force 7/8

Tuesday 12/03

00:00 to 03:00 – West Northwest Force 7/8

03:00 to 06:00 – West Northwest Force 8/9

06:00 to 09:00 – West Northwest Force 8/9

09:00 to 12:00 – West Northwest Force 7/8

12:00 to 15:00 – West Northwest Force 7/8

15:00 to 18:00 – West Northwest Force 6/7

 

The peak gusts will blow across the Maltese Islands during the early morning of Tuesday 12/03. The wind will then decline gradually to become Force 3/4 by morning on Wednesday 13/03.

The sea will be very rough, with wave heights of up to 5.0 metres in peak gusts. The swell will be a low Northwest. The map shows the area of coastline most exposed to this strong wind.

 

Front dgħajjef ta’ arja kiesħa se jgħaddi minn fuq iċ-ċentru tal-Mediterran nhar it-Tnejn 11/03. Sadattant, roqgħa ta’ arja bi pressjoni għolja se tiżviluppa fuq il-punent tal-Mediterran. Din is-sitwazzjoni metejoroloġika se tiġġenera riefnu mill-Punent Majjistru madwar iċ-ċentru tal-Mediterran. Din it-twissija ta’ riefnu ser tkun fis-seħħ minn 18:00 tat-Tnejn 11/03 sa 18:00 tat-Tlieta 12/03. Din it-twissija se tkun aġġornata jekk ikun hemm il-bżonn. Id-dettalji ta’ hawn isfel jiddeskrivu kif għandha tiżviluppa s-sistema matul il-ħin imsemmi.

It-Tnejn 11/03

18:00 sa 21:00 – Punent Majjistru Forza 6/7

21:00 sa 00:00 – Punent Majjistru Forza 7/8

It-Tnejn 12/02

00:00 sa 03:00 – Punent Majjistru Forza 7/8

03:00 sa 06:00 – Punent Majjistru Forza 8/9

06:00 sa 09:00 – Punent Majjistru Forza 8/9

09:00 sa 12:00 – Punent Majjistru Forza 7/8

12:00 sa 15:00 – Punent Majjistru Forza 7/8

15:00 sa 18:00 – Punent Majjistru Forza 6/7

 

Il-buffuri l-aktar qawwijin mistennija jaffetwaw lil Gżejjer Maltin matul filgħodu kmieni tat-Tlieta 12/03. Ir-riħ se jnaqqas bilmod biex isir Forza 3/4 sa filgħodu nhar l-Erbgħa 13/03.

Il-baħar se jkun qawwi ħafna b’mewġ ogħli 5.0 metri fl-aktar buffuri qawwijin. L-imbatt se jkun ħafif mill-Majjistral. Il-mappa tindika l-kosta l-aktar esposta għal dan ir-riħ.

Severe Weather Reports

Dense Fog on 09/03/2019

A warm and moist air mass passed over the central Mediterranean on Saturday 09/03. The meteorological conditions were ideal for the formation of sea fog. The sea fog formed as the warm and moist air mass from the south was advected (blown) over the cooler sea around us. This caused the air mass to cool down. Its temperature fell to the dew point (the temperature at which an air mass becomes saturated and the water vapour in it condenses) polska-ed.com. For this type of fog to form and persist, the wind must be light. The light wind allows the air mass to slide slowly over the cooler area of sea increasing the chances of saturation and condensation. Often, sea fog dissipates as it moves inland. However, given that the air on land is very similar to that of the sea around us, the sea fog prevailed and engulfed the Maltese Islands.

The most affected were coastal localities along the northwest of the Maltese Islands. Conditions are very rarely ideal for the formation of this fog locally. It is only possible in spring, when the first warm and moist air masses from the south start reaching us. These clash with the still cold sea around us. The air temperature over land dropped by 10°C as the fog shrouded the Maltese Islands.

Thanks to Andrea Muscat for the photos!