Italian weather

Discussion of weather and climate outside of NZ's waters. Australian weather, tropical cyclones and USA storm chasing feature here.
Michele
Posts: 22
Joined: Sun 02/10/2011 11:15
Location: Rimini (Italy)

Italian weather

Unread post by Michele »

Hi, my name's Michele and I'm 15. I live in Rimini (Italy) so my english isn't very good, but I'm studing it at school :-D
I decided to write on some foreign forums for try to use english language, to share with other people my interest for the meteorology and to introduce the Italian weather details.
First I'll talk about the climate of my city: Rimini.
Rimini is on the north of the Adriatic coast, in the southern part of the Po Valley, near the Appennines:
Image

Now I'll describe the average weather during the year:

January: It's the coldest month of the year. There are usually 10-15 day with min. temperature below 0°C, sometimes this month could be very cold and snowy.

February: It's another winter month with cold, rain and snow, but sometimes it could be milder in the last days.

March: The first 15-20 days are usually cold and rainy, sometimes snowy, but after the 20th of march the temperature increase very much with the first thunderstorms.

April: This is the first spring month with max temperature over 15°C and min always above 0°C. The snow is very rare.

May: In this month the warm and unstable air produce a lot of thunderstorms on the Appennines that can reach the coast. The Atlantic low pressure bring a lot of rain in the north of Italy in this month.

June: In the first 20-25 day it's similar to may, but with higher temperature (max >25°C and min >15°C). In the last day starts the summer.

July-August: These are the two warmest month of the year with max temperature that sometimes reach +30°C. There are only 4-5 rainy day a month, but the thunderstorms in that days are usually strong with a lot of rain. In the second part of august the temperature starts falling down.

Semptember: The rainy days increase and the temperature decrease (extreme +23/+17).

October: It's a rainy and cool month (temperature gets usually under 10°C for the fist time). It could fall some snow int the second part of the month, but it's really hard.

Novembrer: It could be an autumn month or a winter month, it depends, it's a very changable month.

December: It's the first winter month with min temperature below 0°C for 8-10 days. It's a very rainy month, and it's not hard to see the snow.
;-)


The last september it was the second warmest from 1955 here! It was a summer month, and also today the temperature are very above normal.
Oct 1st 2011: +15.3°C/+24.1°C ______ Sea water temperature: +23.0°C

In the next day it'll be warm with max temp. over +30°C in some places of the north and centre of Italy. But after the Oct 7th It'll get much colder than now for some cold air from the artic:
Image

I hope you enjoy the italian weather!!
:wave: :wave:
Richard
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Re: Italian weather

Unread post by Richard »

Hello Michele and welcome to NZ weather forum :wave: :D :D,interesting reading about your climate :-k

So what are the max average temperatures during the winter months
Michele
Posts: 22
Joined: Sun 02/10/2011 11:15
Location: Rimini (Italy)

Re: Italian weather

Unread post by Michele »

Richard wrote:Hello Michele and welcome to NZ weather forum :wave: :D :D,interesting reading about your climate :-k

So what are the max average temperatures during the winter months
In my city there are two different microclimates:
The places near the sea (<1.5km) have this average temperature for the winter:

Nov: +7.3°C/+12.6°C
Dec: +3.0°C/+7.9°C
Jan: +1.4°C/+6.4°C
Feb: +2.8°C/+8.7°C
Mar: +5.6°C/+12.0°C

In the western part of the city (about 3km from the sea) there are this average temperature:

Nov: +4.2°C/+11.9°C
Dec: -0.1°C/+7.3°C
Jan: -1.6°C/+5.9°C
Feb: -0.3°C/+8.4°C
Mar: +2.0°C/+12.5°C

The average rainfall for the year is 882mm, the average snowfall 20.3cm.

These are the records of my city:
Highest temp : +39.7°C (July 2005)
Lowest temp: -19.0°C (January 1963)

The wettest year: 1402mm (1964)
The dryest year: 456mm (1988)

The snowiest winter: 1963 (103cm), but in 1929 there are some documents that says that fell abut 150cm in only 3 days plus a lot of other snow during the winter, but there's no official data.

The strongest snowstorm: Jan 7th 1967 (80cm in 9 hours).

Now here it's morning (9.16am). Today min temp: +15.9°C (4.2°C above normal)!
:wave:
Richard
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Location: Medbury, Inland North Canterbury

Re: Italian weather

Unread post by Richard »

8-o wow 80cm in 9 hours is a heavy fall,1963 must have been a cold winter
Orion
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Location: Ashburton, Mid-Canterbury, 110m asl.

Re: Italian weather

Unread post by Orion »

Welcome, Michele, :wave: and thankyou for your informative posts.

Richard, the winter of 1962 - 1963 was memorably harsh in Europe: Wiki entry for the UK:

http://en.wikipedia.org/wiki/Winter_of_ ... ed_Kingdom
Richard
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Re: Italian weather

Unread post by Richard »

It must have been a nasty winter Orion
Simon Culling
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Re: Italian weather

Unread post by Simon Culling »

1963 was a very cold winter here in the UK and certainly the coldest of the 20th century.

Welcome to the Forum Michele. Your English is very good....better than some of these Kiwi's 8-o
Michele
Posts: 22
Joined: Sun 02/10/2011 11:15
Location: Rimini (Italy)

Re: Italian weather

Unread post by Michele »

Simon Culling wrote:1963 was a very cold winter here in the UK and certainly the coldest of the 20th century.

Welcome to the Forum Michele. Your English is very good....better than some of these Kiwi's 8-o
Thanks.
Here the coldest winter of the 20th century was 1928/29, 1963 was the second coldest.
Today is the 3rd day in a row without any cloud, and the 13th day in a row without rain. Here there's a severe drought from the end of July when it has stop raining for 52 days in a row! We have about one month of water supplies, then it will finish :(
But in the next days the temperature will decrease and it'll rain here, snow over 1200m.
Temperature at 850hPa:
Image

Temperature of the last two days:
Oct 2nd: +15.9°C/+24.6°C________Sea water temperature +23.0°C
Oct 3rd: +14.7°C/+24.7°C________Sea water temperature +23.0°C
:wave:
Richard
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Joined: Tue 14/07/2009 07:32
Location: Medbury, Inland North Canterbury

Re: Italian weather

Unread post by Richard »

The number of days without rain you get there Michele is similar to what many areas of eastern New Zealand often experience in summer.

Well here's hoping you get some good rain in the coming days.

And as for you Simon,ya cheeky bugger :B
Michele
Posts: 22
Joined: Sun 02/10/2011 11:15
Location: Rimini (Italy)

Re: Italian weather

Unread post by Michele »

Oct 4th: +14.4°C/+23.5°C_________Sea water temperature: +22.5°C
Oct 5th: +14.9°C/+24.2°C_________Sea water temperature: +22.0°C

On Oct 7th the temperature will get down with a little of rain, then from Oct 10th the temperature will return to the actual values. A very boring autumn for now.
:-(
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Michael
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Re: Italian weather

Unread post by Michael »

A very hot summer(and autumn) along Italy and also the other side of the adriatic too,currently in a warm pattern for october too.
Ciao :wave:
Michele
Posts: 22
Joined: Sun 02/10/2011 11:15
Location: Rimini (Italy)

Re: Italian weather

Unread post by Michele »

Oct 6th: +14.5°C/+24.7°C__________Sea water temperature: +22.5°C
Oct 7th: +12.9°C/+24.3°C__________Sea water temperature: +23.0°C______ Rain: 1.8mm

In the last afternoon the cold wind from noth arrived here on the adriatic coast with a lot of thunderstorms that dissolved on the northen part of Rimini and reformed 20-25km further south.
The max wind speed here for Oct 7th is 55km/h.
Now +12.7°C, we're waiting for some rain in the night between Saturday and Sunday, only 2-3mm.
:wave:
Michele
Posts: 22
Joined: Sun 02/10/2011 11:15
Location: Rimini (Italy)

Re: Italian weather

Unread post by Michele »

Oct 8th: +11.2°C/+19.3°C_________Sea water temperature: +22.0°C
Oct 9th: +10.2°C/+17.2°C_________Sea water temperature: +21.5°C ______Rain: 8.2mm

Yesterday appear the first snow of the season 2011-12 on the Appennines: 5cm over 1600m, 1cm over 1100m near Rimini. Here there was 6 waterspouts on the sea in front of Rimini. Here some photos: http://forum.meteonetwork.it/thundersto ... ca-rn.html

One of the waterspouts:

Image

Taken by Niccolò Ubalducci.

The temperature at 850hPa will rise of 15°C (from 0°C to +15°C) in the next 36h.
Now clear sky, +18.0°C RH 34%.
:wave:
Richard
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Re: Italian weather

Unread post by Richard »

That's one cool photo Michele,were the waterspouts moving away from land??
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Nev
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Re: Italian weather

Unread post by Nev »

Wow! Fantastic shots there Michele. _b
Michele
Posts: 22
Joined: Sun 02/10/2011 11:15
Location: Rimini (Italy)

Re: Italian weather

Unread post by Michele »

Richard wrote:That's one cool photo Michele,were the waterspouts moving away from land??
Yes, they were.

Oct 10th: +10.4°C/+18.5°C____________Sea water temperature: +21.5°C
Oct 11th: +12.0°C/+21.3°C____________Sea water temperature: +21.0°C
Oct 12th: +12.5°C/+21.7°C

The data of the sea temp aren't available for maintenance.

Tomorrow the cold air from north-east will arrive here on the adriatic coast with some showers and possible waterspouts. The temperature at 850hPa is now +18°C, but in the next 2 days it'll drop of 18°C, until 0°C, so it'll snow on the Appennines over 1000m, only 3-5cm.
In the next days I will take some photos in Rimini for show you my city.
:P :wave:
jamie
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Re: Italian weather

Unread post by jamie »

Hi,
i love that photo!!!

Are water spouts common in your area with the early winter cold air coming off the land meeting the warm water which is yet to cool down?
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Michael
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Re: Italian weather

Unread post by Michael »

I think the water areas relatively small,though they do get them time to time,as for cyclones like we get in summer they dont get them because theres lots of land but have heat lows in summer.
Michele
Posts: 22
Joined: Sun 02/10/2011 11:15
Location: Rimini (Italy)

Re: Italian weather

Unread post by Michele »

jamie.haultain wrote:Hi,
i love that photo!!!

Are water spouts common in your area with the early winter cold air coming off the land meeting the warm water which is yet to cool down?
In Italy the water spouts are very common from july to November when the cool air from the Atlantic Ocean, or the cold air from the arctic passes over the sea. There are also a lot of tornado in the North of Italy (expecially in the hinterland) from May to September when the dew point can be over 25/27°C
Michael wrote:I think the water areas relatively small,though they do get them time to time,as for cyclones like we get in summer they dont get them because theres lots of land but have heat lows in summer.
In the Mediterranean sea there are some cyclones called "Medicanes" or "TLC" (Tropical Like Cyclone). The TLC can form from January to December, here some Satellite photo:
Image
Image
Image

The temperature of the last days:
Oct 13th: +15.6°C/+21.8°C
Oct 14th: +14.7°C/+17.9°C

The last manual survey of the sea temperature (the buoy is not working at the moment) is +17.0°C.
The temperature at 850hPa is now 0°C, but it'll rising until +7°C on the Oct 19th.
PS: The drought is getting worse, we have only the 23% of the max available water. :wave:
jamie
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Re: Italian weather

Unread post by jamie »

WOW i had no idea the Mediterranean can support cyclones!!!!! awesome.

Is it about 1 or 2 every decade? or more?
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Michael
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Re: Italian weather

Unread post by Michael »

Slightly ot some countries call cyclones as refering to a common low pressure or depression,then storms are called uragana as tropical cyclone varieties.Guess the sea temperature swings wildely over summer and winter.
Michele
Posts: 22
Joined: Sun 02/10/2011 11:15
Location: Rimini (Italy)

Re: Italian weather

Unread post by Michele »

jamie.haultain wrote:WOW i had no idea the Mediterranean can support cyclones!!!!! awesome.

Is it about 1 or 2 every decade? or more?


Mediterranean Tropical Depression <63 km/h - 34 knts
Mediterranean Tropical Storm >63 km/h - >34 knts
Mediterranean Hurricane (o Medicane) >111 km/h - 60 knts

Here's the number of TLC for every year from 1976 to 2007
Year: number of TD+TS+Hurricanes (only hurricanes)

1976: 1 (1)
1982: 1 (1)
1983: 1 (1)
1985: 3 (1)
1986: 1 (0)
1989: 1 (0)
1990: 1 (0)
1992: 1 (0)
1994: 1 (0)
1995: 2 (1)
1996: 4 (1)
1997: 1 (0)
2000: 2 (0)
2003: 4 (0)
2004: 1 (0)
2005: 4 (1)
2006: 2 (0)
2007: 3 (0)

This is only a part of all the TLC because it's hard to find information of this events.
But i know the total number of event from 1976 to 2008 for each month:
Jan: 2 Medicanes + 1 Tropical Storm
Feb: 1 Tropical Storm
Mar: 1 Medicane
Apr: 0
May: 1 Tropical Storm
Jun: 1 Tropical Storm
Jul: 3 Tropical Storms
Aug: 2 Medicanes + 6 Tropical Storms
Sep: 5 Medicanes + 16 Tropical Storms
Oct: 3 Medicanes + 15 Tropical Storms
Nov: 1 Medicane + 7 Tropical Storms
Dec: 4 Medicanes + 2 Tropical Storms

From 1976 to 2008: 18 Medicanes + 53 Tropical Storms.
The average is 2.2 tropical cyclones per year (only 0.56 Hurricane per year).

The Hurricane of 1976 it's the only one that hit Rimini. Here some photos of Gabicce (20km from Rimini): http://forum.meteonetwork.it/meteo-foto ... bicce.html

Last days in Rimini:
Oct 15th: +10.4°C/+14.8°C____________Sea water temperature +16.5°C
Oct 16th: +8.1°C/+14.5°C
Oct 17th: +7.0°C/+15.6°C_____________Sea water temperature +16.0°C
Oct 18th: +6.9°C/+16.5°C

The sky is always clear or cloudy but without rain.
Tomorrow the temperature will rise, because of the fohn winds, untill +22/+23°C, but then the winds from North-East will bring the colder air from Balkans to the North of Italy, especially on the adriatic coast.
And finally, the most important thing... On Oct 20th IT'LL RAIN!!!! _b _b 8-o :D
Simon Culling
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Re: Italian weather

Unread post by Simon Culling »

There has been much debate on this subject over the years and I think the best way to look at it is that there are weather systems in the Mediterranean that ocassionally have some of the characteristics of hurricanes. The links to two pdf files of recent papers on this matter will help explain what I mean:

http://www.mmm.ucar.edu/people/rotunno/ ... eather.pdf

http://hal.archives-ouvertes.fr/docs/00 ... 7-2005.pdf

Ciao one and all :wave:
Michele
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Joined: Sun 02/10/2011 11:15
Location: Rimini (Italy)

Re: Italian weather

Unread post by Michele »

Last days:
Oct 19th: +10.2°C/+22.5°C Rain: 0.0mm
Oct 20th: +10.1°C/+19.6°C Rain: 31.8mm
Oct 21st: +8.7°C/+14.0°C Rain: 2.9mm

The Oct 20th was an incredible day in Rome! In the southern part of the city fell about 220mm of rain in 12h, but more than 150mm fell in only 2 hours!
A video of Rome: http://www.youtube.com/watch?v=qH9A55loAWM

In the next days the mild and humid air from the Atlantic Ocean will arrive in the west Mediterranean. At 850hPa the tempertaure will rise from the actual value of 0°C to +9°C.
Image
Last edited by Michele on Wed 26/10/2011 10:19, edited 1 time in total.
Richard
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Re: Italian weather

Unread post by Richard »

Thats a lot of rain in two hours 8-o was the subway out of action while they were pumping the water out