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This is the final warning / advisory for this storm as it has weakened below warning levels and/or the storm system is no longer a tropical cyclone.
Go to the main page to see active storms.
A small percentage of post-tropical cyclones will become tropical again. In that case, this page will be updated again with the latest advisories and warnings.
Current Wind Speed 30 knots / 35 MPH
Max Predicted Wind Speed 30 knots / 35 MPH at
Alternate tracking maps are only available on NHC tracked storms.
Spaghetti models for Alessia can be found here:
ALESSIA spaghetti models page »
Watches and Warnings are currently only available for NHC tracked storms.
WTPS31 PGTW 272100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE 02S (ALESSIA) WARNING NR 007// RMKS/ 1. TROPICAL CYCLONE 02S (ALESSIA) WARNING NR 007 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 271800Z --- NEAR 16.5S 137.7E MOVEMENT PAST SIX HOURS - 180 DEGREES AT 03 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE, RADAR AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND REPEAT POSIT: 16.5S 137.7E --- FORECASTS: 12 HRS, VALID AT: 280600Z --- 16.7S 137.0E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 272100Z POSITION NEAR 16.6S 137.5E. TROPICAL CYCLONE (TC) 02S (ALESSIA), LOCATED APPROXIMATELY 462 NM EAST-SOUTHEAST OF DARWIN, AUSTRALIA, HAS TRACKED SOUTHWARD AT 03 KNOTS OVER THE PAST SIX HOURS. ANIMATED INFRARED SATELLITE IMAGERY DEPICTS PERSISTENT DEEP CONVECTION OVER THE EASTERN SEMI-CIRCLE OF A POORLY-DEFINED LOW-LEVEL CIRCULATION CENTER (LLCC). RADAR IMAGERY FROM MORNINGTON ISLAND INDICATES THAT THE LLCC HAS TRACKED BACK OVER LAND AND HAS WEAKENED SIGNIFICANTLY. A 271242Z ASCAT IMAGE SHOWS ONLY 15 TO 25 KNOT WINDS OVER THE EASTERN SEMI-CIRCLE. SURFACE OBSERVATIONS LOCATED OVER THE WESTERN SEMI-CIRCLE OF THE SYSTEM INDICATE SUSTAINED WINDS LESS THAN 10 KNOTS AND SLP NEAR 1003 MB. THE INITIAL POSITION IS BASED ON RADAR IMAGERY WITH LOW CONFIDENCE DUE TO THE LACK OF CONVECTIVE BANDING INTO THE CENTER. THE INITIAL INTENSITY IS ASSESSED AT 30 KNOTS AND IS BASED ON THE ASCAT DATA. TC 02S IS DRIFTING SOUTHWARD AND IS EXPECTED TO REMAIN OVER LAND AS IT TRACKS WESTWARD UNDER THE LOW-LEVEL SUBTROPICAL RIDGE POSITIONED TO THE SOUTH. DYNAMIC MODELS INDICATE SLOW TRACK SPEEDS AND A GENERALLY WESTWARD TRACK WITH A LOW PROBABILITY OF TRACKING BACK OVER THE GULF OF CARPENTARIA. OVERALL, THERE IS LOW CONFIDENCE IN THE JTWC FORECAST TRACK DUE TO THE LACK OF CONVECTIVE STRUCTURE AND WEAK STEERING ENVIRONMENT. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION.// NNNN
Public Advisory not available for this storm.
Forecast Discussion not available for this storm.
Time | Speed | Location | Status |
---|---|---|---|
30 knots | -16.5, 137.7 | dissipated | |
25 knots | -16.7, 137.0 | dissipated |
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