Weather in Croatia:Goodbye 2013

[Crostorm]

Font Unibas Bern

[Crostorm]

Storm Forecast
Valid: Mon 19 Mar 2007 06:00 to Tue 20 Mar 2007 06:00 UTC
Issued: Sun 18 Mar 2007 17:22
Forecaster: TUSCHY

SYNOPSIS

Dramatic changes are underway / have already occured over Europe.
Southward expanding polar vortex will reach the extreme northern part of the forecast area during the end of the forecast period .
At lower levels, a combination of a stout 1040hPa anticyclone over the Azores and a slowly filling low pressure area over Norway and Sweden will support an outbreak of arctic air over parts of western, southern , northern and central Europe. A broad area will be affected by this type of airmass and will see an active convective day.
Strong WAA on the downstream side of the impressive upper-level trough will bring warm conditions well towards the north, affecting eastern / northeastern Europe.

A developing lee-cyclogenesis over N-Italy will be another area to watch out for enhanced thunderstorm activity.

DISCUSSION

...Scotland, Ireland, United Kingdom, France, Belgium, the Netherlands, Germany, Switzerland and parts of Spain...

Temperatures of -35 to -40°C at 500hPa, -15°C at 700hPa and -5°C at 850hPa will cover a huge area, supporting mid-level lapse rates of 8-9K / km !
This kind of atmospheric stratification will admit SBCAPE release in the order of 100-300 J/kg.
Such a postfrontal convective event makes it difficult to pinpoint areas of enhanced (severe) thunderstorm activity that far out... especially over such an huge area.

GFS indicates numerous lines with enhanced moisture advection, various upper-level impulses and small UVV maxima, which will cross the area from the north. Topography and fluctuating boundary layer moisture will play a role as well as possible small-scale polar low development, which are hard to forecast by global models.
Summarized we can say that a broad area will see isolated to scattered thunderstorm development during the next 24 hours.

LL shear of 10-15m/s was calculated for Ireland, Scotland, UK and northern / western France with decreasing values further towards the east / southeast.
Boundary layer moisture is forecast to be very shallow and constant mixing will bring the LCLs to values of 750-1500m, which will lower the tornado possibility.
Storm relative helicity values stay pretty low , besides UK, Scotland and Ireland.

Decided to issue a level-1 for regions, where 850hPa flow is at least somewhat enhanced ( e.g. Ireland, Scotland and UK with 25m/s ), which poses a threat for an isolated severe wind gust. Shear / instability combination also points out the possibility for an isolated tornado in those areas.
Exactly the same for SW / W / NW / N France, where LL shear and instability favor the evolution of an isolated tornado/ severe wind gust event.
During maximum heating, storms could produce mostly sub-severe hail, although an isolated large hail event can't be ruled out, given still 10-20m/s DLS.

...Central Mediterranean...

Constantly deepening lee-cyclogenesis over N-Italy will be the focus for another area of enhanced thunderstorm possibility.

During the latter part of my forecast period, the atmosphere will start a rapid cool-down over the Balearic Islands, Sardinia and Corsica and 400-600 J/kg SBCAPE can be expected.
Despite the favorable environment, thunderstorms will have problems to evolve just south of France / east of Spain, because of expected long fetch, before dry continental airmass will be mixed out.
Further torwards the south, scattered thunderstorms can be expected in an environment with up to 50m/s DLS.
Low / mid-level flow won't be that strong, but don't want to exclude an isolated severe wind gust risk with the stronger storms.
LL shear of 10m/s, low LCLs and fine instability will also support an local tornado threat along / over Sardinia and Corsica, which was the reason for issuing a level-1.... otherwise confidence is low that storms will be able to gain severe thunderstorm status.

The same for an area between Sicily and CNTRL Italy.

Further towards the east, over Italy and the Adriatic Sea, conditions for isolated to scattered TSTMs will become favorable, too, especially during the latter part of the forecast.
DLS of 30-40m/s and locally up to 17m/s LL shear favor an isolated tornado / severe wind gust risk. Expected pretty strong forcing will compensate the warm temperatures at low / mid-levels.

[Crostorm]

[Crostorm]

Here are some photos from 19.03-22.03.2007
The snow returned to Croatia
We caled this Ciklone Horacije and here are some foto report.
Horacije in Dubrovnik
http://www.crometeo.net/phpbb/viewtopic.php?t=2812
Dalmatinska zagora na prvi dan proljeca
http://www.crometeo.net/phpbb/viewtopic.php?t=2809
Ciklone Horacije u Zadru i okolici
http://www.crometeo.net/phpbb/viewtopic.php?t=2810
Ciklona HORACIJE - snijeg u Varaždinu 19.3.2007.
http://www.crometeo.net/phpbb/viewtopic.php?t=2791
Koprivnica 19 i 20.3.2007. (Ciklona Horacije)
http://www.crometeo.net/phpbb/viewtopic.php?t=2799
Ciklona Horacije - snijeg Grdanjci-Bregana 19/20.03.2007.
http://www.crometeo.net/phpbb/viewtopic.php?t=2796
Slovenija:Uživancija na snijegu - Ljubljana (Ciklona Horacije)
http://www.crometeo.net/phpbb/viewtopic.php?t=2790

I hope you will enyoy
Bye!

[Crostorm]

Hi to everybody!
I am back on forum after half year.In summer time i work in Italy,so I dont have time to come on forum.But now I am back.
So what to say about weather in Croatia!
Its cold and first snow come
Here you can see the snow and wind chase from my friend on Croatian weather forum .
Velebit 19.10.2007
http://www.crometeo.net/phpbb/viewtopic.php?t=3595

[Crostorm]

Hurricane force Bura in Razanac (Velebit channel) below Velebit massif on March 12th 2006. Gusts were reaching 230km/h on that day.
http://www.youtube.com/watch?v=I5iguLOwEJg

What is Bura(wind)?
The changeable Bora can often be felt all over Dalmatia and the rest of the Adriatic east coast. It blows in gusts. The Bora is most common during the winter. It blows hardest, as the meteorologist Wrangel first explained in 1876, when a polar high-pressure area sits over the snow-covered mountains of the interior plateau behind the Dinaric coastal mountain range and a low-pressure area lies further south over the warmer Adriatic. As the air grows even colder and thus denser at night, the Bora increases. The wind takes two different traditional names depending on associated meteorological conditions: the "clear bora" (Italian: Bora chiara) is Bora in the presence of clear skies, whereas clouds gathering on the hilltops and moving towards the seaside with rain characterize the "dark bora" .

The area where some of the strongest bora winds occur is the Velebit mountain range in Croatia. This seaside mountain chain, spanning 145 kilometers, represents a huge weather and climatic divide between the sharp continental climate of the interior, characterized by significant day/night temperature differences throughout the year, and the Adriatic coast, with a Mediterranean climate. Bora occurs because these two divided masses tend to equalize. Sailing can be extremely dangerous for an unexperienced navigator in the Velebit channel because the wind can start suddenly on a clear and calm day and result in major problems, frequently also affecting road traffic. Near the towns of Senj, Stara Novalja, Karlobag and the southern portal of the Sv. Rok Tunnel in Croatia, it can reach speeds of up to 220 kilometers per hour. On 15 March 2006 the speed of a gust on the Pag Bridge was measured at 235 kilometres per hour

[Crostorm]

This morning is very cold in Croatia and Slovenia states


Croatia


Slovenia

[Crostorm]

SNOW AND SNOW

[Crostorm]

The reportage about tornado in Podravska Slatina (Croatia) on 20th of August 2007

http://de.youtube.com/watch?v=Et0rpEg0bFc

[Crostorm]

The winter is coming in Croatia and all adriatic states

[Crostorm]

temperature,wind direction,hPa in Croatia

[Crostorm]

Its starting the snow in most parts of Croatia

[Crostorm]

[Crostorm]

Snowing in Croatia capital Zagreb this morning

[Crostorm]

Hi,In last days in Croatia,Slovenia,Bosnia and Herzegovina,Austria was falling planty of snow so here are some snow reprts from that Countrys.
I hope you will enyoy.

Ok let start with;
Sarajevo on 15.12.2007
http://crometeo.net/phpbb/viewtopic.php?t=3821

Kutina(Croatia) snow from high pression,23.12.2007
http://crometeo.net/phpbb/viewtopic.php?t=3845

Austria(atmospheric inversion on 21 and 22 12.2007)
http://crometeo.net/phpbb/viewtopic.php?t=3844

Koprivnica(Croatia 24.12.2007)
http://crometeo.net/phpbb/viewtopic.php?t=3847

Zagreb(Croatia 24.12.2007)
http://crometeo.net/phpbb/viewtopic.php?t=3848

Zivnice(Bosnia and Herzegovina 25.12.2007)
http://crometeo.net/phpbb/viewtopic.php?t=3861

Kutina (Croatia 24 and 25 12.2007)
http://crometeo.net/phpbb/viewtopic.php?t=3857

Gorjanci(Slovenia 21.12.2007)
http://crometeo.net/phpbb/viewtopic.php?t=3851

White Christmas in Zagreb(Croatia 24.12.2007)
http://crometeo.net/phpbb/viewtopic.php?t=3859

White Christmas in Donji Lug(Bosnia and Herzegovina 24.12.2007)
http://crometeo.net/phpbb/viewtopic.php?t=3858

Gradiste(Croatia 26.12.2007)
http://crometeo.net/phpbb/viewtopic.php?t=3862

Icy condition in Split,city in Croatia,on adriatic sea)
http://crometeo.net/phpbb/viewtopic.php?t=3819

I hope you enyoy.
Bye

[Crostorm]

Yesterday were very cold day in some parts Bosnia and Herzegovina

Donji Lug on -20°C(-68°F) - 01.03. 2007.

Photos
http://crometeo.net/phpbb/viewtopic.php?t=3892

[Crostorm]

Minimum temperature in 24h. 01/04/2008 at 06:00 UTC
(20 of 20 stations)
1 Osijek / Klisa (Croatia) -12.3 °C
2 Gospic (Croatia) -11.6 °C
3 Puntijarka (Croatia) -9.0 °C
4 Osijek / Cepin (Croatia) -8.1 °C
5 Slavonski Brod (Croatia) -8.0 °C
6 Parg (Croatia) -7.9 °C
7 Daruvar (Croatia) -7.6 °C
8 Bilogora (Croatia) -5.7 °C
9 Zagreb / Pleso (Croatia) -5.2 °C
10 Zadar / Zemunik (Croatia) -4.5 °C
11 Sisak (Croatia) -4.1 °C
12 Zagreb / Maksimir (Croatia) -4.1 °C
13 Bjelovar (Croatia) -3.9 °C
14 Krapina (Croatia) -3.8 °C
15 Krizevci (Croatia) -3.7 °C
16 Zagreb / Gric (Croatia) -3.3 °C
17 Split / Resnik (Croatia) -2.2 °C
18 Dubrovnik / Cilipi (Croatia) -0.8 °C
19 Pula Aerodrome (Croatia) 0.4 °C
20 Split / Marjan (Croatia) 2.5 °C

[Crostorm]

[Crostorm]

Minimum temperature in 24h. 01/05/2008 at 12:00 UTC
(37 of 37 stations)
1 Osijek / Klisa (Croatia) -14.4 °C
2 Osijek / Cepin (Croatia) -12.9 °C
3 Gradiste (Croatia) -12.6 °C
4 Bilogora (Croatia) -9.4 °C
5 Slavonski Brod (Croatia) -8.6 °C
6 Varazdin (Croatia) -6.2 °C
7 Daruvar (Croatia) -6.0 °C
8 Bjelovar (Croatia) -5.9 °C
9 Krizevci (Croatia) -5.6 °C
10 Ogulin (Croatia) -5.5 °C
11 Zagreb / Pleso (Croatia) -5.3 °C
12 Krapina (Croatia) -5.2 °C
13 Zagreb / Maksimir (Croatia) -5.1 °C
14 Parg (Croatia) -4.5 °C
15 Zagreb / Gric (Croatia) -4.5 °C
16 Karlovac (Croatia) -4.4 °C
17 Puntijarka (Croatia) -4.3 °C
18 Zavizan (Croatia) -3.2 °C
19 Gospic (Croatia) -1.4 °C
20 Pazin (Croatia) 1.4 °C
21 Ploce (Croatia) 3.4 °C
22 Zadar / Zemunik (Croatia) 4.7 °C
23 Rovinj / Sv. Ivan Na Pucini (Croatia) 5.8 °C
24 Knin (Croatia) 6.1 °C
25 Pula Aerodrome (Croatia) 6.2 °C
26 Zadar Puntamika (Croatia) 6.2 °C
27 Senj (Croatia) 6.3 °C
28 Rijeka / Kozala (Croatia) 6.5 °C
29 Komiza (Croatia) 6.7 °C
30 Split / Resnik (Croatia) 6.7 °C
31 Split / Marjan (Croatia) 7.0 °C
32 Sibenik (Croatia) 7.6 °C
33 Dubrovnik / Cilipi (Croatia) 7.7 °C
34 Dubrovnik / Gorica (Croatia) 7.7 °C
35 Mali Losinj (Croatia) 8.0 °C
36 Makarska (Croatia) 8.6 °C
37 Hvar (Croatia) 9.0 °C

[Crostorm]

--------------------------------------------------------------------------------
Minimum temperature in 24h. 01/06/2008 at 06:00 UTC
(20 of 20 stations)

1 Osijek / Klisa (Croatia) -11.3 °C
2 Gradiste (Croatia) -10.4 °C
3 Osijek / Cepin (Croatia) -9.5 °C
4 Bilogora (Croatia) -8.8 °C
5 Slavonski Brod (Croatia) -7.7 °C
6 Daruvar (Croatia) -5.8 °C
7 Sisak (Croatia) -4.3 °C
8 Zagreb / Maksimir (Croatia) -4.3 °C
9 Zagreb / Pleso (Croatia) -4.2 °C
10 Puntijarka (Croatia) -0.8 °C
11 Zavizan (Croatia) -0.6 °C
12 Gospic (Croatia) -0.4 °C
13 Rovinj / Sv. Ivan Na Pucini (Croatia) 7.6 °C
14 Zadar / Zemunik (Croatia) 8.0 °C
15 Pula Aerodrome (Croatia) 8.1 °C
16 Split / Resnik (Croatia) 8.6 °C
17 Mali Losinj (Croatia) 9.0 °C
18 Dubrovnik / Cilipi (Croatia) 9.3 °C
19 Split / Marjan (Croatia) 9.9 °C
20 Palagruza (Croatia) 11.4 °C