[Jez Meyer]

Hi all. I was wondering if anyone could provide me with some real information on this event that wasn't present in the news reports at the time. I would be very appreciative of things like radar/satellite images, synoptic accounts and rainfall totals. I was in Istanbul during the floods and saw what looked to me in my ignorance as an ominous supercell building on the horizon, but no news reports I can find give any actual meteorological details of the floods. Apologies if this is in the wrong forum...

http://en.wikipedia....sh_flash_floods

[Bazmundo]

A quick query of the ESWD gives two entries for the 9 Sept:


large hail
Yerköy Yozgat Province
Turkey (39.64 N, 34.47 E)
09-09-2009 (Wednesday) 14:00 UTC (+/- 1 hrs.)
based on: information from photo or video of the event, a newspaper report, a report on a website, an eyewitness report of the damage
occurring over: land land use where event was first observed: land
maximum hail diameter: 5 cm
damage to crops and forests: 21 ha
large hail; fruits damaged; damages; source: "Yozgat'ı sel ve dolu vurdu", HABER 3, 10 SEP 2009;
report status: report confirmed (QC1)
contact: Thilo Kühne (ESWD management) [e-mail]

heavy rain
Istanbul Ikitelli
Turkey (41.01 N, 28.95 E)
09-09-2009 (Wednesday) 05:00 UTC (+/- 1 hrs.)
based on: information from photo or video of the event, an eye-witness report, a report by a weather service, a newspaper report, a television or radio broadcast, a report on a website
occurring over: land land use where event was first observed: town or city
duration of precipitation: 2 hr
precipitation: 135 mm
damage to property: Big
number of people dead: 31
Flash fllods at Ikitelli-Istanbul
report status: as received (QC0)

[Jez Meyer]

That's some major rainfall...
Estofex only had a Level 1 warning issued, with the following text:

... Northwestern Turkey...

An advection of moist, unstable airmass from the Black Sea and topographic uplift will result in numerous rounds of showers and thunderstorms in the region, probably lasting the whole forecast period ( convective precipitation is being simulated till Thursday 06 UTC). Moreover, weak wind field should result in the slow storm movements and especially in mountainous areas a heavy rainfall event or two is not ruled. out.

Since the actual consequences seem to have been somewhat more serious I'd really like to read a synoptic breakdown written after the event!