December 30, 201213 yr Got thunder at ekch today.. Seems incorrect for this season Occasionally experience thunderstorms on wrong seasons, what is The logic behind thunderstorms ?
December 30, 201213 yr Commercial Member What did the METAR say in the opusweather file? If the METAR contains CBs then FSX depicts thunder at any time of year. CBs can occur at any time of the year, they are not just a summer time phenomena, and in FSX CBs mean thunder. But we had a storm just the other week and that's in the UK winter, also the Dutch coast has been having occassional storms this past month. CBs aren't just a summer phenomena. Regards Stephen :-)
December 30, 201213 yr Commercial Member Extract from a weather guide .... There are three basic types of thunderstorms that the UK may encounter at anytime of the year: Single Cell Storms A single-cell thunderstorm forms when there is little wind shear (neither in direction nor strength) with height. The storm will be poorly organized, and without the slant of the downdraft from wind shear away from the updraft, the downdraft of cool air and precipitation, cuts off the updraft and terminates the storm growth cycle. A single cell storm will typically last around 30 to 50 minutes. If there is windshear with altitude, the storm usually becomes multicellular, having several growth cycles and lasting longer. Multicell Storms Multicell thunderstorms are likely to form when wind shear is stronger, they usually consist of multiple convective updrafts and downdrafts. Multicell storms form when new convective cells develop along the boundary of a cold pool from the downdraft on the downshear side of an old cell. In severe multicell storms, there are usually several cells active at any one time, and a storm complex may develop called a Mesoscale Convective System or MCS which is an area of deep convective cloud that has an anvil which can be several hundred kms across in diameter. These 'storm complexes' can sometimes affect the UK in summer during Spanish Plume set-ups, usually drifting up from France. A MCS can also, under the right conditions, develop supercell characteristics aswell. Supercell Storms These tend to be a rare visitor to the UK, but are not unkown to occur most years under the right conditions. The supercell is the most severe of all thunderstorms. It can form out of a generic multicell storm, if there is enough directional windshear in the atmosphere to slant the updraft and separate the cool downdraft from the updraft. The main updraft can strengthen and start rotating due to the air vorticity and mesoscale inflow/outflow pattern (mesocyclone); rotation in a storm is an indicator for supercellular behaviour. Supercells create their own small low-pressure systems with fronts (usually in the form of a flanking line and gustfront). They can last several hours and spawn tornadoes, wall clouds and drop very large hail (in rare cases up to 10 cm or 4"). Supercells in the UK normally form in summer when warm moist air at low-levels is over run by colder drier air aloft, usually in the vicinity of a cold front moving in from the West, and also with a strong jet aloft creating strong vertical wind shear. Thunderstorms are not necessarily just seasonal phenomena. Stephen
December 30, 201213 yr Commercial Member Here are some of the METARs for EKCH (Copenhagen) today, CBs have been reported virtually all day long ... EKCH 301650Z 22016KT 9999 FEW021CB BKN050 04/02 Q1004 TEMPO 22020G30KT SHRA BKN020CB EKCH 301620Z 23017KT 9999 FEW021CB BKN034 04/02 Q1004 TEMPO 22020G30KT SHRA BKN020CB EKCH 301550Z 24013KT 9999 -SHRA SCT021CB BKN034 04/03 Q1004 TEMPO 22020G30KT SHGS BKN020CB EKCH 301520Z 22015KT 9999 FEW021CB BKN034 05/03 Q1004 TEMPO 22020G30KT SHGS BKN020CB EKCH 301503Z 22017KT 9999 FEW021CB SCT024 05/02 Q1004 TEMPO 22020G30KT SHGR BKN020CB EKCH 301450Z 22016KT 9999 FEW021CB SCT024 05/02 Q1004 TEMPO 22020G30KT SHRA BKN020CB EKCH 301420Z 23019KT 9999 -SHRA FEW021CB SCT025 05/02 Q1003 TEMPO 22020G30KT SHRA BKN020CB EKCH 301350Z 23018KT 9999 FEW021 SCT045 BKN050 06/03 Q1003 TEMPO 22020G30KT SHRA BKN020CB EKCH 301320Z 22017KT 9999 FEW022 SCT034 BKN042 06/03 Q1003 NOSIG EKCH 301250Z 23018KT 9999 FEW020CB SCT036 BKN051 06/03 Q1003 NOSIG EKCH 301220Z 23016KT 9999 FEW020CB SCT050 BKN080 06/03 Q1003 NOSIG EKCH 301150Z 22017KT 9999 FEW018CB SCT050 BKN070 06/04 Q1003 NOSIG EKCH 301120Z 21015KT 9999 -SHRA SCT018CB SCT044 BKN052 06/05 Q1004 TEMPO 22015G25KT Regards Stephen P.S. I should also add CB in a METAR by definition means Cumulonimbus and Thunderstorm. The TS in a METAR is usually added as a conditional statement when there are no CBs overhead and yet there is thunderstorm activity in the vicinity of the airport. Any mention of CB or the TS condition should warn all pilots of thunderstorm (and possible accompanying wind shear) conditions.
December 31, 201213 yr Guys in the middle of the flight it suddenly say changing terrain and i got to wait like 10sec for it to load finish,is it supposely to be liddat? and the frames at Wsss weather is like 20fps i think of going back to as2012 :( To be truth the weather is very very nice but i think i lose fps here and there.Mb a setting could be added like the amount of clouds? like in as2012 min and max clouds? Kailiang Seah
December 31, 201213 yr Commercial Member OpusFSX has little if any FPS impact on FSX. We show the real weather and will not change it to show fewer clouds, have you followed the recommendations in our getting started guide, if you are flying low level set the cloud draw distance to 80 miles, about 110 miles for high flyers should be fine. Use low res cloud textures to improve your system performance, they look more realistic too. If your system is not coping with the detailed true weather then you can import your own custom themes or import custom METARs. Regards Cheryl
December 31, 201213 yr Thank you I will read agin indeed good weather program i will try the the low res cloud textures i52500k 4.3ghz 7850 Should be fine Sir: simple clouds or detail clouds low? Kailiang Seah
December 31, 201213 yr Commercial Member You will have to play around with your FSX settings to see what works best on your system, performance wise. Cheryl :smile:
December 31, 201213 yr This has almost certainly been answered somewhere but I couldn't find it on the OPUS page...is there a way to force visibility to 1 or 2 miles and/or create a low ceiling manually? I often turn vis down to practice instrument procedures. I do it in FSX sometimes but I don't find it to be all that great. Gregg Gregg Seipp "A good landing is when you can walk away from the airplane. A great landing is when you can reuse it." i9 64GB RAM, GTX-5090
December 31, 201213 yr Commercial Member Hi Gregg You can create a METAR import text file with a single GLOB (global) METAR specified in it, then just import the file into OpusFSX. Leave the LWE enabled, open the Weather dialog, browse for your import text file (button in the top right corner), then tick the Import option, finally click on the Update Weather button. The specified METAR can be of the form, GLOB 000000Z 27008KT 7000 OVC004 03/02 Q1003 etc. use the GLOB code to specify a global weather report and enter the entire METAR on a single line within your import text file. You can have a look in OpusWeather.txt for some other example METAR statements. Stephen
December 31, 201213 yr Hi Gregg You can create a METAR import text file with a single GLOB (global) METAR specified in it, then just import the file into OpusFSX. Leave the LWE enabled, open the Weather dialog, browse for your import text file (button in the top right corner), then tick the Import option, finally click on the Update Weather button. The specified METAR can be of the form, GLOB 000000Z 27008KT 7000 OVC004 03/02 Q1003 etc. use the GLOB code to specify a global weather report and enter the entire METAR on a single line within your import text file. You can have a look in OpusWeather.txt for some other example METAR statements. Stephen Ok. That works for me. I just updated my REXE and it seems to have a problem there. I might try Opus the way other people have. Regards, Gregg Gregg Seipp "A good landing is when you can walk away from the airplane. A great landing is when you can reuse it." i9 64GB RAM, GTX-5090
January 2, 201313 yr BTW, can someone tell me how you set up Opus to use REXE textures? Gregg Seipp "A good landing is when you can walk away from the airplane. A great landing is when you can reuse it." i9 64GB RAM, GTX-5090
January 2, 201313 yr BTW, can someone tell me how you set up Opus to use REXE textures? Greg, there's nothing you need to do in Opus. Just be sure you've loaded a REX texture set. Opus simply uses whatever is loaded. Scott
January 2, 201313 yr Greg, there's nothing you need to do in Opus. Just be sure you've loaded a REX texture set. Opus simply uses whatever is loaded. Scott So, do I have to have REXE running or does it just use the textures without REXE running? Gregg Gregg Seipp "A good landing is when you can walk away from the airplane. A great landing is when you can reuse it." i9 64GB RAM, GTX-5090
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