مباحث عمومی هواشناسی

[نيما]

سلام دوستان:گل:پيش بيني فوركا و بي بي 30 درست در اومد طبق همين پيش بيني فردا هم برفي هست هنوز accuweather با فوركاهم اعتقادست

 

[navid_komperes]

امیرمحسن عزیز مرسی از جوابت
ما که داریم میریم امروز از مشهد...امیدوارم یه شب یلدای برفی و سرد در انتظار مشهد باشه:گل:

 

[نيما]

درود بر همه دوستان و تبریک به مشهدی های عزیز واسه بارش برف غافلگیر کننده :گل:

اینجا هوا دوباره داره ابری میشه. چیزی که جالبه اینه که با وجودی که برف دیشب آبکی بود و حداقل 2 سانت برف روی خاک ها نشسته بود ولی ایستگاه شکوهیه قم ( بخوانید خشکیه قم!!) فقط 0.4 میل بارش ثبت کرده! در حالی که من حداقل روی 2 یا 3 میل حساب باز کرده بودم. من نمیدونم این آمار تخیلی رو چطوری محاسبه می کنند اما خودم که یه بار ظرف باراسنجی گذاشته بودم در حالی که بارش داخل ظرف 24 میل شده بود سازمان فقط 12 میل بارش ثبت کرد یعنی نصفش!

سلام حسن جان بارش برف زيباتون تبريك عرض مي كنم خيلي جالبه فرودكاه ما هم همين جوريه به نقل هادي گرمادره خيلي سر به سر ما ميزاره

 

[ali.doosti]

امیرمحسن زمستون 50 تکرار شه من تو پادگان چیکار کنم :خنده1:

 

[Amir Mohsen]

 

[Amir Mohsen]

 

[Amir Mohsen]

Weekly Tropical Climate Note Issued on Tuesday 17 December 2013
[h=2]Active monsoon trough next week, but will it move over Australia? It is becoming increasingly likely that parts of northern Australia will see another burst of monsoon activity before the end of the year. Enhanced cloudiness associated with the Madden-Julian Oscillation (MJO) is currently located over the eastern Indian Ocean and most climate models forecast the MJO to progress eastward into Australian longitudes over the coming week. The North Australian Monsoon often becomes more active when influenced by the MJO. Weather models support this outcome; a monsoon trough is forecast to develop over northern Australian waters next week. However, there is currently uncertainty as to whether the trough will move southwards over the Australian continent, or linger offshore to the north. In either case, next week is likely to see active tropical weather over southern Indonesia, East Timor and along Australia's North Coast. Showers or storms may push inland, over northern Australia, depending upon the movement and location of the trough. This also increases the risk of tropical cyclone development within the Australian Region over the next fortnight.
See the Bureau's MJO Monitoring for more information on location and tracking of the MJO.
[h=2]Two tropical cyclones in the southern Indian Ocean This past week has seen two tropical cyclones form over the southern Indian Ocean. The first, tropical cyclone Amara, formed near 15° S and 70° E and is tracking west. The other tropical low is located southeast of Sumatra, near Cocos Island, is forecast to reach tropical cyclone strength later this week.
[h=2]ENSO state: neutral El Niño–Southern Oscillation (ENSO) remains in the neutral state. The latest NINO3.4 sea surface temperature anomaly is +0.1 °C. The 30-day Southern Oscillation Index (SOI) value to 15 December is +8.0.
See the Bureau's ENSO Wrap-Up which includes a compilation of computer model predictions of ENSO indices.
Next update expected by 24 December 2013| Product Code IDCKGEWOOO
​

 

[Amir Mohsen]

Summary of MJO impacts globally
The impacts of the MJO on global weather patterns are summarized in Figs. 4.10a and 4.10b, which show the MJO impact on weather out to 1–3 weeks.

Fig. 4.10a. Global pattern of MJO impacts during Boreal summer (JJA). Impacts identified are: (1) alternating periods of wetter and drier conditions; (2) modulation of the monsoons; and (3) modulation of tropical cyclone activity.

Fig. 4.10b. Global pattern of MJO impacts during Boreal winter (DJF): (1) alternate periods of wetter and drier conditions; (2) extension of a tropical moisture plume (the "Pineapple Express") into higher latitudes, feeding heavy midlatitude rainfall events; (3) modulation of monsoon systems; (4) modulation of tropical cyclone activity; and (5) modulation of ENSO through oceanic Kelvin waves.
​

 

[Amir Mohsen]

 

[Amir Mohsen]

 

[Amir Mohsen]

 

[Amir Mohsen]

 

[Amir Mohsen]

 

[Amir Mohsen]

 

[Amir Mohsen]

اپدیت جدید اکیوریت ودر برای مشهد:

Fri 12/20/2013	3°	-7°	4 mm	1.3 CM	A little snow, mainly early	7°	-2°
Sat 12/21/2013	2°	-8°	0 mm	0.1 CM	Mostly cloudy and cold

Fri 12/27/2013	3°	-7°	0 mm	0.9 CM	Considerable clouds	6°	-3°
Sat 12/28/2013	-1°	-9°	8 mm	13.6 CM	Colder with snow	6°	-3°
Sun 12/29/2013	-2°	-10°	1 mm	2.1 CM	Very cold with a little snow	6°	-3°

 

[hasan1]

سلام حسن جان بارش برف زيباتون تبريك عرض مي كنم خيلي جالبه فرودكاه ما هم همين جوريه به نقل هادي گرمادره خيلي سر به سر ما ميزاره

سلام نیما جان

ممنون از لطفت :گل:

البته انقدر ما از این ایستگاه شکوهیه زجر کشیدیم که دیگه واسمون مهم نیست چند میل ثبت میکنه. مهم خودمونیم که میدونیم کم باریده یا زیاد!

 

[Amir Mohsen]

 

[Amir Mohsen]

 

[Amir Mohsen]

 

[Amir Mohsen]

http://www.google.com/imgres?q=Mjo+...age=15&tbnh=178&tbnw=255&ndsp=21&tx=147&ty=31