El Nino question

[HurricaneBill]

Has there ever been a time where there was an El Nino, yet the Atlantic had a rather active hurricane season?

Or a La Nina that still had an active Eastern Pacific?

I mean there have been years where both Atlantic and Eastern Pacific had above average and below average seasons.

Examples:

Above average for both:
1990: Atlantic had 14 named storms (ending with Hurricane Nana)

Eastern Pacific had 20 named storms (ending with Hurricane Vance)

Below Average:
1977: Atlantic had only 6 named storms (ending with Tropical Storm Frieda)

Eastern Pacific had only 8 named storms (ending with Hurricane Heather)

Also, 1977 yielded no major hurricanes in the Eastern Pacific, just like 2003. The Atlantic had one major that year. The Category 5 Hurricane Anita. (no, not Bryant)

[Derecho]

1977 is interesting for other reasons:

Fromr the CPHC:

"There were no tropical cyclones reported in the Central North Pacific during 1977. The Western North Pacific experienced the smallest number of typhoons (11) since JTWC's formation in 1959. Eastern North Pacific activity was also at a minimum; only 8 tropical storms or hurricanes were reported during the year in that area--the lowest number since 1966 when excellent satellite full coverage began"

Haven't looked at Southern Hemisphere/Indian Ocean #s for 1977, may have been the least active year recorded worldwide.

[AussieMark]

1985 was a La Nina Year and it had stacks of Activity



23 Tropical Storms
13 Hurricanes
8 Major Hurricanes

1985 was also a active season in the Atlantic



11 Tropical Storms
7 Hurricanes
3 Major Hurricanes

[USAwx1]

It usually takes an El Nino of MODERATE or STRONG intensity to really affect the atlantic tropical season significantly.

There have been years (for example 1969) which had well above normal activity in the atlantic basin. 1969 had 5 MAJOR hurricanes, one of which being camille!



What i do think you will notice is that many La Nina years in the ATC weak and PDO warm cycles still feature somewhat above average activity in the EPAC and near or somewhat below normal Activity in the Atlantic basin. the opposite goes for the PDO cold/ATC strong cycles, where El Nino events during the tropical season (unless of a moderate to strong intensity) don't really mitigate activity in the Atlantic, and don't do much to enhance activity in the EPAC.