Map Discussions

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6 Feb 2009

*
Loops of 300-hPa HGHT (1 deg GFS), HGHT departures, and standardized HGHT anomalies (climatology from NCEP-NCAR reanalysis) for:
Pacific/North American sector (10 Dec -- 6 Feb 2009)

North Atlantic/Europe sector (1 Jan -- 6 Feb 2009)

*Isobaric and cross-section plots for recent SSW event (from Tom Galarneau)

*300-hPa meridional wind Hovmoellers (30--50 N and 40--60 N; 1 Jan -- 6 Feb 2009)



Archived Friday Map Discussions (2006--2007)

--- Fall 2007 ---

9 November 2007: Part I: European wind storm of 8--9 November 2007. Part II: Flooding in the Mexican state of Tabasco in late October 2007. Part III: European wind storm #2 (10--11 November 2007).


2 November 2007:  Extratropical transition of Noel.

 

26 October 2007:  Meteorological and climate conditions favoring the 21–28 October 2007 southern California fire outbreak

 

19 October 2007: The central and eastern U.S. extended warm spell, and how the associated large-scale flow pattern favors autumnal severe weather outbreaks

 

12 October 2007:  PV tails over the North Atlantic, South Atlantic, and South Indian oceans

 

5 October 2007:  Recent central and eastern U.S. warmth, and recent null tropical transition events in the Gulf of Mexico and western Atlantic

 

28 September 2007:  Recent 850-hPa/surface temperature relationships in the Northeast, and NH July/August decadal changes in 1000-500 hPa thickness

 

21 September 2007:  Historical context and evolution of a recent southern California cutoff

 

14 September 2007:  Record minimum Arctic sea ice and near-record maximum Antarctic sea ice

 

7 September 2007:  Lifecycle of Tropical Storm Gabrielle

 

31 August 2007:  Synoptic and sub-synoptic features controlling the life cycles of Tropical Storm Erin and Hurricane Dean

 

--- Spring 2007 ---

 

13 April 2007:  (i) Recent NH height/temperature anomaly patterns, and (ii) severe weather in Texas and links to an upcoming Nor’easter (4/15–16)

 

30 March 2007:  Mid- to late March severe weather outbreaks over the U.S. Plains and MS Valley

 

23 March 2007:  String of South Indian TCs in mid-February

 

16 March 2007:  St. Patrick’s Day storm in the Northeast

       

9 March 2007:  No map discussion

 

2 March 2007:  1 March severe weather event in AL and GA, with a focus on the Enterprise, AL tornado (2 parts)

 

16 February 2007:  Upper-level conditions associated with the Tug Hill Plateau lake-effect snows in the first two weeks of February, and the origin and evolution of the Valentine’s Day snowstorm

 

9 February 2007:  Recent cyclone behavior in the eastern Pacific and North Atlantic, and cross-equatorial upper-level flow linkages between the NH and SH

 

2 February 2007:  Life cycles of blocking anticyclones that formed over the North Pacific and North Atlantic in the third week of January 2007

 

26 January 2007:  17–18 January 2007 European wind storm and the ensuing formation of a significant omega block over the North Atlantic ocean

 

--- Fall 2006 ---

 

8 December 2006:  Subtropical jetogenesis over the East Pacific, the NH 2006 SON climate, and the short-lived arctic cold surge over the Northeast

 

3 November 2006:  29 October 2006 eastern Pacific unnamed tropical storm (text only)