climate factors that affect our weather patterns
here are some factors that influence Kentucky weather they update every day and are quite useful in long range forecasts.
http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.sprd2.gif
http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/ao.sprd2.gif
http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/pna.sprd2.gif
NAO when it’s negative we have a cold stormy pattern when positive we usually have warmer weather.
PNA when it’s positive a trough forms in the east when negative the trough is over the west.
AO when it’s negative colder than normal positive warmer than normal.
sea surface temps in the Pacific ocean
http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_update/sstanim.shtml
blue is colder than normal , red is warmer than normal
colder than normal temps are associated with la-nina while warmer than normal temps are associated with el-nino.
we see different weather patterns with el-nino and la-nina. el-nino generally leads to cooler and dryer than average seasonal conditions while la-nina is warmer and wetter. here some maps to show more detailed seasonal variations.
http://www.cpc.ncep.noaa.gov/products/precip/CWlink/ENSO/enso.anal.shtml
more telconnection links
epo (negative favors a cold pattern)
http://raleighwx.easternuswx.com/models/00zEPOcomparison.html
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