Sunday, October 20, 2019

Winter '19 / '20 - What Is the Polar Vortex and How Does It Influence Weather?

›
"The term polar vortex has become part of the everyday vocabulary after the widespread media coverage of the extreme cold events ove...
Friday, October 18, 2019

Winter '19 / '20 - Statistical Winter Outlook: Solar cycle and ENSO

›
Severe Weather Europe's (SWE) analysis of the solar cycle and ENSO analogs ... "After removing all the cold phases and strong w...
Saturday, October 12, 2019

Winter '19 / '20 - Quasi-Biennial Oscillation (QBO): Leading Analogs' 500 mb Anomaly Height Composite ... as of SEP-19

›
Analog 5H composite ('78/'79 ... '85/'86 ...'95/'96 ... '99/'00 ... '02/'03) ... as of SEP-19 - R...
Tuesday, October 08, 2019

Winter '19 / '20 - Eurasia Snow Cover: SEP

›
Eurasia/s areal snow cover for SEP-19: ~1,570,000 SQ-KM 3% below 48-year P-O-R-N (~1,629,000 SQ-KM) 1% below 48-year Median (~1,588,000...
Saturday, October 05, 2019

Winter '19 / '20 - Arctic Oscillation (AO): Leading Analogs' 500 mb Anomaly Height Composite ... as of SEP-19

›
Analog 5H composite ('53/'54 ... '54/'55 ...'59/'60 ... '97/'98 ... '14/'15) ... as of SEP-19   -...
Thursday, October 03, 2019

Winter '19 / '20 - North Atlantic Oscillation (NAO): Leading Analogs' 500 mb Anomaly Height Composite... as of AUG-19

›
UPDATE :  SEP/s NAO did not change the analog years other than to shuffle the 4th and 5th ranks. --- Analog 5H composite ('50/'51...
Saturday, September 28, 2019

Winter '19 / '20 - Eurasian Snow Cover: AUG

›
Eurasia/s areal snow cover for AUG-19:  ~158,300 km2 -61% below 48-year P-O-R-N (~403,000 km2) -46% below 48-year Median (~294,000 km2)...
Thursday, September 26, 2019

Winter '19 / '20 - Arctic Oscillation (AO): AUG

›
AUG AO:  -.722 Leading analog contenders ... as of AUG-19. Consensus Outlook:  Winter '19 / '20 AO < 0 KEY ENSO:  nada-...
Wednesday, September 25, 2019

Winter '19 / '20 - North Atlantic Oscillation (NAO): AUG

›
AUG NAO:  -1.17 Leading analog contenders ... as of AUG-19. Consensus Outlook:  Winter '19 / '20 NAO > 0 CORRECTION:  ...
Saturday, September 14, 2019

Winter '18 / '19 - North Atlantic Oscillation (NAO) Analog Verification

›
The analog forecasting technique seeks similarities to the NAO state in the run-up to the coming winter with NAO run-up states of winters pa...