Page 48 of 48 < 1 2 ... 46 47 48
Topic Options
#1413157 - 18/03/2017 15:08 Re: Streamflow Observation [Re: Seira]
Seira Offline
Meteorological Motor Mouth

Registered: 27/08/2003
Posts: 6729
Loc: Adelaide Hills.
14th to 24th of March, 2017:
Potential Key features:
  • Deep Southern-Ocean rossby-wave slings NE in the Indian Ocean.
  • Rossby-wave, with significantly-lower 500-hPa temperatures (-30s), reaches the NE edge of the Eastern IO high, intersecting the 576-thickness line.
  • WA surface troughing and low activity drifts SW into the ocean, interacting with approaching rossby-wave.
  • The high in the Bight is disrupted by the intersect (having already been disrupted by isoheight anomalies a week earlier).
  • The disrupted high in the Bight moves further east, allowing more southerly air-streams north near its SW corner.
  • The now-shorter-wave upper trough buckles, allowing the 576-thickness temperatures to wrap around it, disconnecting at the surface from the deep-south trough, potentially dragging East-Coast (Coral-Sea) activity west.
  • This potential [cut-off] system is capable of gaining more latent energy from the tropical north (Broome-GOC-NE QLD-NSW), intensifying pressure and temperature gradient at its core, both vertically and horizontally.
  • Flooding is a potential issue (consequence of this) along the NSW northern Coastal Fringes within this time period, as Coral-Sea moisture ventures south.
  • The troposphere, in this situation, would be fairly unstable with cooler-to-colder air above a milder-to-warm, humid air-mass.
  • A second upper trough ventures NE into the Eastern Indian Ocean, this time buckling (because it is stuck between ridges and the first cut-off).
  • This second upper trough also A. disrupts the 576-thickness NW of Perth WA, and B. drags moisture off a developing surface low near Broome, intensifying its development.
  • The 576-thickness (approaching Adelaide) drags much-higher dew-points (+14 C) in an arc from as far as Broome and SE QLD…again.
  • The first shorter-wave cut-off is likely to add to the consequences of the second.


Edited by Seira (18/03/2017 15:11)
_________________________
Only the most naive gamblers bet against physics, and only the most irresponsible bet with their grandchildren’s resources.

-- William H. Calvin.

[A quote about abrupt weather pattern changes occurring within decades.]

Top
#1413220 - 18/03/2017 20:06 Re: Streamflow Observation [Re: Seira]
Seira Offline
Meteorological Motor Mouth

Registered: 27/08/2003
Posts: 6729
Loc: Adelaide Hills.
Originally Posted By: Seira
14th to 24th of March, 2017:
Potential Key features:
  • This potential [cut-off] system is capable of gaining more latent energy from the tropical north (Broome-GOC-NE QLD-NSW), intensifying pressure and temperature gradient at its core, both vertically and horizontally.
  • Flooding is a potential issue (consequence of this) along the NSW northern Coastal Fringes within this time period, as Coral-Sea moisture ventures south.
  • The troposphere, in this situation, would be fairly unstable with cooler-to-colder air above a milder-to-warm, humid air-mass.

More Flood Warnings now issued by Bureau.

Clarity: mesoscale cut-off near Eastern Seaboard is a precursor.


Edited by Seira (18/03/2017 20:16)
_________________________
Only the most naive gamblers bet against physics, and only the most irresponsible bet with their grandchildren’s resources.

-- William H. Calvin.

[A quote about abrupt weather pattern changes occurring within decades.]

Top
#1415673 - Today at 00:06 Re: Streamflow Observation [Re: Seira]
Seira Offline
Meteorological Motor Mouth

Registered: 27/08/2003
Posts: 6729
Loc: Adelaide Hills.
Bowen QLD might need to prepare for flooding next 3-5 days... frown just my view, oh well smile .
_________________________
Only the most naive gamblers bet against physics, and only the most irresponsible bet with their grandchildren’s resources.

-- William H. Calvin.

[A quote about abrupt weather pattern changes occurring within decades.]

Top
Page 48 of 48 < 1 2 ... 46 47 48


Who's Online
57 registered (Rhys., Thrombus, Red Watch, Rainheart, sunworshipper, RC, CraigA74, Lunar, Timbuck, DaveD, show_me_weather, Max744, wildopete, White Squall, Weary, TrentG, Foehn Correspondent, Perfect Storm, Tempest, meedee, nthqlndr, FNQ, ozone doug, S.Novaehollandia, Ollieo, Colin Maitland, Cyclone_Tim_, Wezza, Locke, breezy04, Matt_30, StormCapture, phreeky, kmack43, MangroveJack70, Patrolit, redbucket, Tan, Tel, Corretto, Knot, Ms.Weatherfreak, Stormy3, Steve O, Cybermouse, Swigman, Mr Cooee bay, Aussea, exodus, Hailin, ol mate, Sepo, 5 invisible), 644 Guests and 5 Spiders online.
Key: Admin, Global Mod, Mod
Today's Birthdays
andyman, Stealth, T2Tornado
Forum Stats
29145 Members
32 Forums
23559 Topics
1443501 Posts

Max Online: 2925 @ 02/02/2011 22:23
Satellite Image