Guten Morgen

takt 15,2 C°
tp 11,6 C°

Wind Suedwest 6 km/ h

Bei mir kommt grad die Sonne wider, größeres Wolkenloch ... gut warm ... 19°C, noch immer kein Wind ...

Morgen jetzt 15,5°C und die Sonne kämpft sich langsam durchb die Wolken!!

Habe gerade eine Ö3-Wetterwarnug bekommen: „Erhöhung der erwarteten Regenmenge auf insgesamt 80 mm!"

Aktuell Kumulus wolken trocken und 14,7° w wind 1bft trocken .

Linz aktuell 19°C, bedeckt, momentan kein Wind, vor 10 Minuten um die 15km/h ...

Aktuell sonne und wolken kein wind 15° .

bedeckt, schwacher Wind und 17,4°C

Hallo zusammen ^^

Aktuell 22,9 Grad, arg dunstig, beinahe windstill

Jössas, wie schaut denn das UWZ heute aus.... das knallt ja krachbunt durch halb Österreich

Wetterwarnung für 5580: Starker Regen mit bis zu 80mm von 18. Sept. 16Uhr bis 19 Sept. 21 Uhr Zamg wetterwarnung

Interesting setup, with a strong cold front, and its breakdown above alps, and formation of the secondary cyclone.



This cold front is a part of a cold/deep “late autumn” type through.


My quick and short thought: Strong warm air advection will be present across much of Slovenia, FVG, and parts of S Austria, because of the strong S/SW surface and lower level winds associated with the formation of a secondary cyclogenesis, because of the breaking cold front and deformation to warm front over the SE Alpine region. Large scale lifting will be present, so the main focus will be on a lot of convective precipitation, from thunderstorms and showers.
Because of the secondary cyclone and the strong wind fields, the low level shear and helicity will be enhanced across much of the Alpine region. There will be some convective mess, so I don’t really expect any isolated storms, but of course, supercells are a reality. Mesocyclones could be covered up, because of the low LCL, and can be embedded with clusters or vertical lines, in the region that I have mentioned before.

Wind forecast for 700m and 850hpa, where S/SW advection winds can be seen.





If we look at the SST in the Adriatic Sea, we quickly notice above normal temperatures, which will enhance the warm S/SW advection.



A strong 500hpa jet will be present before and with the cold front, with speeds around 45 and up to 50 knots. There is alot of moisture present in the mid levels, which will enhance the precipitable water, and help to increase the total rainfall.



And also a nice low level jet, once the cold front deforms.



So a very “rainy” passing of the front, across the W/Central Slovenia, parts of S Austria, and FVG region in Italy. Lots of precipitation can be expected over W Slovenia on the Alpine-Dinar region.

And for Austria
With and before the front, there will be thunderstorms that could be severe, especially because of the enhanced 6km DLS. The models don’t show any CAPE with the front itself, but that can be deceiving, because cold fronts have instability of their own (because of the temperature gradients/lapse rates), that is usually not picked up by models.

So, definitely a very interesting weather day. And night of course. :)

My "view" above is for the late evening/night hours. But prefrontal storms are already forming.

I will try to post some "updates" later, regarding the setup, and the whole situation. :)

Best regards.

Ohh, thanks for so much informations, capillatus ! i appreciate your presents here in this forum !!

Hier ziemlich Windig, bereits Westwind, der stabilisiert !
hohe AS und herunten CU hu und Cu med
die Front sieht im moment ned grad gradientreich aus, wird eher mau durchlaufen bei mir
Takt: 20,9°C
TP: 15,4°C

tak 21 C° aber bewölkt