-- THIS INFORMATION WAS LAST UPDATED ON: Sun Feb 5 15:19:15 GMT 2012 - ------------------------------------------------------------------ - WE ASSUME NO LIABILITY FOR HOW ACCUATE IT IS - USE AT OWN RISK - ------------------------------------------------------------------ Expires:No;;663789 ABPZ20 KNHC 302333 TWOEP TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 400 PM PST WED NOV 30 2011 FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE.. TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS. THIS IS THE LAST TROPICAL WEATHER OUTLOOK OF THE 2011 EASTERN PACIFIC HURRICANE SEASON. THE NEXT REGULAR TROPICAL WEATHER OUTLOOK WILL BE ISSUED ON MAY 15 2012. SPECIAL TROPICAL WEATHER OUTLOOKS WILL BE ISSUED AS NEEDED IF A SIGNIFICANT WEATHER SYSTEM FORMS DURING THE OFF-SEASON. $$ FORECASTER BEVEN Expires:No;;694791 ACPN60 PHFO 012000 TWSCP TROPICAL WEATHER SUMMARY FOR THE CENTRAL NORTH PACIFIC NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 1000 AM HST THU DEC 1 2011 FOR THE CENTRAL NORTH PACIFIC...BETWEEN 140W AND 180 THE 2011 CENTRAL NORTH PACIFIC HURRICANE SEASON OFFICIALLY ENDED ON 30 NOVEMBER. FROM JUNE 1 THROUGH THE END OF THE SEASON...THERE WAS ONLY ONE TROPICAL CYCLONE WHICH FORMED OR MOVED INTO THE CENTRAL NORTH PACIFIC. TROPICAL STORM FERNANDA FORMED IN THE EASTERN PACIFIC AND MOVED WEST INTO THE CENTRAL PACIFIC HURRICANE CENTER /CPHC/ AREA OF RESPONSIBILITY DURING THE EARLY MORNING OF 18 AUGUST. FERNANDA WEAKENED INTO A REMNANT LOW PRESSURE SYSTEM ON 19 AUGUST. EVEN THOUGH THE 2011 HURRICANE SEASON HAS OFFICIALLY ENDED...TROPICAL CYCLONES HAVE BEEN KNOWN TO FORM OUTSIDE OF THE OFFICIAL HURRICANE SEASON. IN 2010...FOR EXAMPLE...TROPICAL STORM OMEKA DEVELOPED FAR WEST OF THE MAIN HAWAIIAN ISLANDS IN LATE DECEMBER. SUMMARY TABLE FOR 2011 CENTRAL PACIFIC HURRICANE SEASON NAME DATES MAX WIND /MPH/ DEATHS ---------------------------------------------------------------- TS FERNANDA 18 AUG - 19 AUG 55 0 FOR ADDITIONAL INFORMATION...VISIT THE CPHC WEB SITE AT... WEATHER.GOV/CPHC $$ HOUSTON/WROE/BIRCHARD WTPZ41 KNHC 170241 TCDEP1 POST-TROPICAL CYCLONE IRWIN DISCUSSION NUMBER 44 NWS NATIONAL HURRICANE CENTER MIAMI FL EP112011 800 PM PDT SUN OCT 16 2011 SATELLITE IMAGERY SHOWS THAT IRWIN HAS BEEN VOID OF DEEP CONVECTION FOR ABOUT 12 HOURS AND THAT THE CIRCULATION HAS WEAKENED AND BECOME LESS DEFINED. FOR THESE REASONS...IRWIN NO LONGER QUALIFIES AS A TROPICAL CYCLONE AND IS BEING DECLARED A REMNANT LOW. THE SYSTEM COULD PRODUCE ANOTHER BURST OR TWO OF CONVECTION DURING THE NEXT DAY OR SO...BUT GIVEN THE AMOUNT OF DRY AIR SURROUNDING THE LOW IT SHOULD BE VERY SHORT-LIVED. THE CYCLONE HAS BEEN DRIFTING NORTHWESTWARD DURING THE PAST FEW HOURS AND THIS GENERAL MOTION SHOULD CONTINUE INTO MONDAY. AFTER THAT...THE REMNANT LOW IS FORECAST TO TURN SOUTHWARD THEN SOUTHEASTWARD AS THE LOW-LEVEL FLOW BECOMES NORTHWESTERLY. THE UPDATED NHC FORECAST NOW CALLS FOR DISSIPATION WITHIN 72 HOURS. THIS IS IN GOOD AGREEMENT WITH THE GFS AND ECMWF MODELS...WHICH BOTH SHOW DISSIPATION IN ABOUT 2 DAYS. THIS IS THE LAST NHC ADVISORY ON IRWIN. FOR ADDITIONAL INFORMATION ON THE REMNANT LOW PLEASE SEE HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFEPI AND WMO HEADER FZPN02 KWBC. FORECAST POSITIONS AND MAX WINDS INIT 17/0300Z 14.1N 108.3W 25 KT 30 MPH...POST-TROP/REMNT LOW 12H 17/1200Z 14.5N 108.9W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 18/0000Z 14.6N 109.3W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 18/1200Z 14.4N 109.5W 20 KT 25 MPH...POST-TROP/REMNT LOW 48H 19/0000Z 14.1N 109.4W 20 KT 25 MPH...POST-TROP/REMNT LOW 72H 20/0000Z...DISSIPATED $$ FORECASTER BROWN