Old Rocks
Diamond Member
Climate Prediction Center - Seasonal Outlook
CURRENT ATMOSPHERIC AND OCEANIC CONDITIONS WEEKLY SEA SURFACE TEMPERATURE (SST) ANOMALIES REMAIN SIGNIFICANTLY ABOVE NORMAL NEAR THE EQUATOR THROUGHOUT THE CENTRAL AND EASTERN PACIFIC OCEAN. EQUATORIAL SST ANOMALIES AVERAGED OVER THE LAST 30 DAYS NOW EXCEED 2 DEGREES C FROM THE DATE LINE TO ABOUT 130 W AND ARE MORE THAN 1 DEG. C ABOVE NORMAL FROM 160 E TO ABOUT 90 W. THE SST ANOMALIES IN THE NINO 3.4 REGION HAVE BEEN SLOWLY INCREASING IN RECENT WEEKS AND CURRENTLY AVERAGE 1.8 DEGREES C ABOVE NORMAL. THE AREA OF MAXIMUM SST ANOMALIES HAS BEEN EXPANDING EASTWARD DURING THE LAST MONTH AS HAVE THE POSITIVE SUBSURFACE OCEAN TEMPERATURE ANOMALIES. EQUATORIAL OUTGOING LONGWAVE RADIATION ANOMALIES REFLECT EL NINO CONDITIONS, WITH SUPPRESSED CONVECTION OVER INDONESIA AND ENHANCED CONVECTION NEAR THE DATE LINE. THE SUBSURFACE HEAT CONTENT IS GENERALLY ABOVE NORMAL IN THE UPPER 200 METERS OF THE TROPICAL PACIFIC OCEAN WITH WATER TEMPERATURE ANOMALIES EXCEEDING +6 CELSIUS AT THERMOCLINE DEPTH NEAR 105W. HISTORICALLY, POSITIVE TEMPERATURE ANOMALIES IN THE UPPER OCEAN PRECEDE FURTHER DEVELOPMENT OF EL NINO EVENTS. THUS TROPICAL PACIFIC SSTS ARE LIKELY TO REMAIN CONSISTENT WITH MODERATE EL NINO CONDITIONS IN THE NEXT FEW MONTHS.
CURRENT ATMOSPHERIC AND OCEANIC CONDITIONS WEEKLY SEA SURFACE TEMPERATURE (SST) ANOMALIES REMAIN SIGNIFICANTLY ABOVE NORMAL NEAR THE EQUATOR THROUGHOUT THE CENTRAL AND EASTERN PACIFIC OCEAN. EQUATORIAL SST ANOMALIES AVERAGED OVER THE LAST 30 DAYS NOW EXCEED 2 DEGREES C FROM THE DATE LINE TO ABOUT 130 W AND ARE MORE THAN 1 DEG. C ABOVE NORMAL FROM 160 E TO ABOUT 90 W. THE SST ANOMALIES IN THE NINO 3.4 REGION HAVE BEEN SLOWLY INCREASING IN RECENT WEEKS AND CURRENTLY AVERAGE 1.8 DEGREES C ABOVE NORMAL. THE AREA OF MAXIMUM SST ANOMALIES HAS BEEN EXPANDING EASTWARD DURING THE LAST MONTH AS HAVE THE POSITIVE SUBSURFACE OCEAN TEMPERATURE ANOMALIES. EQUATORIAL OUTGOING LONGWAVE RADIATION ANOMALIES REFLECT EL NINO CONDITIONS, WITH SUPPRESSED CONVECTION OVER INDONESIA AND ENHANCED CONVECTION NEAR THE DATE LINE. THE SUBSURFACE HEAT CONTENT IS GENERALLY ABOVE NORMAL IN THE UPPER 200 METERS OF THE TROPICAL PACIFIC OCEAN WITH WATER TEMPERATURE ANOMALIES EXCEEDING +6 CELSIUS AT THERMOCLINE DEPTH NEAR 105W. HISTORICALLY, POSITIVE TEMPERATURE ANOMALIES IN THE UPPER OCEAN PRECEDE FURTHER DEVELOPMENT OF EL NINO EVENTS. THUS TROPICAL PACIFIC SSTS ARE LIKELY TO REMAIN CONSISTENT WITH MODERATE EL NINO CONDITIONS IN THE NEXT FEW MONTHS.