Synoptic Discussions

This page is an archival of some of my (and others) contributions to the Australian Bureau of Meteorology Synoptic_Discussion email list and to the international Tropical storms discussion list.  My active participation occurred from early 2002 to early 2003.  My current focus has moved to the international monsoon discussion list.  For information see http://tstorms.org/monsoon/

2005:

23 August 2005:  More on "Earth has not anything to show more fair"
18 August 2005:  Earth has not anything to show more fair:  Cut off low development (PVA max) off Western Australia

3 February 2005:  South East Australia record rainfall event Part I               Geoff Feren Figures
3 February 2005:  South East Australia record rainfall event Part II
 
 

Current Discussions: (2004)

24 December 2004:  Tropical Cyclone in the Southern Indian Ocean

31 May/1 June 2004: Dry season circulation/convective event over Darwin
31 May 2004  Differences in versions of today's MSLP analysis
28 May 2004  Progs for next Tuesday: an outlier?
10 May 2004  Extraordinary swell event
April 26 2004:  Good cut-off low over the weekend, current left-jet entrance cloud off Queensland
31 March 2004:  South Atlantic TC?
10 March 2004:  Interesting satpics over South Eastern Australia
3 March 2004:  Tropical cyclone Monty wrap-up
25 February 2004: Temperature extremes during February
9 February 2004  (Ensembles) Block over SE Australia
6 February 2004:  The "gusty Storm" from Australia
5 February 2004:  CAPE -Australia Day Storm

4 February 2004: Yesterday (3 Feb)'s heavy rainfall along Queensland Coast: Conditions required for heavy convective rainfall   Also includes follow-up discussion of Melbourne heavy convective rain event of 02 December.
2 February 2004:  (Ensembles) Maintenance of a cut-off low... a highly predictable configuration?
2 February 2004:  January in Melbourne: coldest for 12 years.
2 February 2004:  Burst in the monsoon
 

9 December 2003:  The 02 December thunderstorm event (continuation of discussion from 02 December)
3 December 2003: Line of Cb's across Victoria
3 December 2003: MCS in New South wales
2 December 2003:  Melbourne severe thunderstorm event: evening of 2 December
28 October 2003:  A Broken Hill dust event
27 September 2003:  Gale force winds over Sydney on Sep 27th
26 September 2003:  Frontogenesis in the Bight?
23 September 2003:  Australian thunderstorm climatology
 
 

19 May 2003:  Sri Lanka floods
15 May 2003:  Massive ITCZ: westerly "burst"
14 May 2003:  Surge on the northern New South Wales coast
8 May 2003:  Tropical Cyclone Development in Northern Indian Ocean
 

10 February 2003:  Transport of smoke and aerosols from the fires: upper troposphere or lower troposphere?
7 February 2003:  Planetary scale transport of aerosols from the South East Oz fires
6 February 2003:   Spectacular vortex-sheet roll-up last night across the Indian Ocean and into the West-Pacific
6 February 2003:  Tropical Hovmoellers
6 February 2003:  The last chapter of the life of TC Beni:  extratropical transition associated with a split jet blocking pair
5 February 2003:  Smoke cloud over Victoria: red ring around the sun and haze over Melbourne
1 February 2003:  Pyro_Cb's  (Continuation of 30 January)
30 January 2003:  Weekend Temperatures over Melbourne continued: Notes from duty forecaster Ward Rooney
30 January 2003:  Deep convection with fires? (reply to 23 January)
26 January 2003:  Weekend temperatures: why so warm?  Brave forecasts for Sunday
24 January 2003:  Smoke covering southern and eastern  Victoria
23 January 2003:  Deep convection with fires?
21 January 2003   Potential tropical-cyclogenesis in the Southern Indian Ocean, associated with an equatorial mixed Rossby-Gravity wave????
19 January 2003:  Canberra fires
14 January 2003:  December 21 2002: the "penguin fog event"
10 January 2003:  El Nino, Oz Rainfall, Guo Ming Wang, Friday afternoon, the pub, etc
10 January 2003:  The fires triggered by lightning
09 January 2003:  The cool change of 7-8 January: Lightning-caused fires, and a Southerly Buster.
07 January 2003:  Intense  monsoon low over Top End

Earlier Discussions
26 November 2002:  Potential TC near Singapore
23 November 2002   Structure of the ITCZ across the Indian Ocean (follow on from MRG discussion of 22 Nov)
22 November 2002:  Development of Haishen:  Mixed Rossby Gravity wave influence.
18 November 2002:  Tropical squall lines (continued from 15 November)
15 November 2002: Overnight squall line (and dust storm)
14 November 2002:  Griffith dust-storm on the 12th
11 November 2002:  "Knock-em- down" storms (Historic references to Australian monsoon) (reply to 6 November)
7 November 2002:  The development of Atang in the Southern Indian Ocean, a possible development in southern Bay of Bengal, the current SPCZ
6 November 2002:  Transition  season "knock'em down" storms
5 November 2002:  TUTT feature in Atlantic (replies to discussion of 4 November)
4 November 2002:  Dust storm continued:  Notes from Queensland Duty Forecaster (Geg Bond)
4 November 2002:  TUTT feature in Atlantic  (P.s:  Indian Ocean double ITCZ)
30 October 2002:  Melbourne's "cool change"
30 October 2002:    Dust-storm of 23 October, continued (Split window analysis)
28 October 2002:    North East Pacific vortex dynamics, still ongoing.
24 October 2002:    Today's GOES-West image: a lovely example of the Guinn and Schubert "ITCZ
  rolling up into  balls' process
23 October 2002:    Continental scale dust-storm
11  October 2002:   Northward movement of the Equatorial Rossby Waves
  Subsequent discussion on transformation of wave-types
  and real-time detection of equatorially-trapped waves
08 October 2002:      NSW fires
07 October 2002:   Monsoon depression / Rossby-gyre: When is a TC a TC?
06 October 2002:   Big Typhoon Brewing in WPAC and perhaps a twin
 
 
 
 

ARCHIVED DISCUSSIONS (pre- October 2002) by subject matter.

a) TROPICS

Tropical Cyclone Development  (see also n = 1 Rossby waves)         Tropical Cyclones

Tropical Squall Lines         Equatorial dynamics and the n= 1 trapped Rossby waves

Australian monsoon (and Indonesian monsoon)      Large scale tropical phenomena
 

b)  AUSTRALIAN SYNOPTICS

Australian Rainfall Events         Model Performance

South-east Australia summertime cold fronts

Dec_2001/January_2002  New South Wales Bushfires

Fire weather                                               WA Trough / Leeuwin Current

Severe weather / significant weather       Extra-tropical and midlatitude cyclones

Northwest cloudbands and related phenomena      Quikscat data

ClimatologySouthern hemisphere dynamics

Web graphics         Sea Surface Temperatures

Stratocumulus History of the frontal concept in Australia

    Blocking        Winter-time fronts

        fog             Dust  events
 

OTHER (internal to Bureau of Meteorology)

Hank De Witt's interactive sounding page

latest GPATS

GMS IR enhancement table