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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.
Current Wind Speed 55 knots / 63 MPH
Max Predicted Wind Speed 55 knots / 63 MPH at
Spaghetti models for JEBI can be found here:
WTPN31 PGTW 041500 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL STORM 25W (JEBI) WARNING NR 034 DOWNGRADED FROM TYPHOON 25W 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 041200Z --- NEAR 38.9N 137.7E MOVEMENT PAST SIX HOURS - 020 DEGREES AT 39 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT REPEAT POSIT: 38.9N 137.7E --- FORECASTS: 12 HRS, VALID AT: 050000Z --- 46.0N 138.6E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 275 NM NORTHEAST QUADRANT 230 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 345 DEG/ 24 KTS --- 24 HRS, VALID AT: 051200Z --- 50.7N 136.6E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL --- REMARKS: 041500Z POSITION NEAR 40.7N 137.9E. TROPICAL STORM 25W (JEBI), LOCATED APPROXIMATELY 185 NM WEST- SOUTHWEST OF MISAWA, JAPAN, HAS TRACKED NORTH-NORTHEASTWARD AT 39 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS AN EXPANSIVE SYSTEM WITH CONVECTION DISPLACED EAST AND POLEWARD OF THE LOW LEVEL CIRCULATION CENTER (LLCC), CHARACTERISTIC OF AN EXTRATROPICAL LOW. THE INITIAL POSITION IS PLACED WITH FAIR CONFIDENCE BASED ON A 041125Z ASCAT PASS SHOWING AN ELONGATED LLCC. THE INITIAL INTENSITY IS SET AT 55 KTS BASED ON 55 KT WIND BARBS TO THE SOUTH AND SOUTHEAST IN THE AFOREMENTIONED ASCAT PASS. ADDITIONALLY, OBSERVATIONS FROM STATIONS 50-75 NM FROM THE CENTER READ 980-982 MB, WHICH WOULD SUPPORT 55 KT WINDS NEAR THE CENTER. THE INITIAL INTENSITY AGREES WITH THE RJTD DVORAK CURRENT INTENSITY ESTIMATE OF T3.5 (55 KTS), AND IS ABOVE THE PGTW SUBTROPICAL METHOD ESTIMATE OF ST3.0 (45-50 KTS). UPPER LEVEL ANALYSIS INDICATES THAT THE SYSTEM IS NOW LOCATED UNDER A DEEP MIDLATITUDE SHORTWAVE TROUGH. HIGH VERTICAL WIND SHEAR (30-40 KTS) HAS SHEARED CONVECTION AWAY FROM THE CENTER, AND IN COMBINATION WITH LOW SEA SURFACE TEMPERATURES (LESS THAN 26 CELSIUS) IN THE SEA OF JAPAN, HAS LED TO WEAKENING. A 040600Z AMSU CORE TEMPERATURE ANOMALY CROSS SECTION REVEALS A BUILDING COLD ANOMALY AT MIDLEVELS, INDICATIVE OF EXTRATROPICAL TRANSITION. 25W IS ACCELERATING QUICKLY TO THE NORTHEAST, CAUGHT UP IN THE MIDLATITUDE WESTERLY JET. 25W IS FORECAST TO CONTINUE ACCELERATING POLEWARD AND WEAKENING AS IT COMPLETES EXTRATROPICAL TRANSITION BY TAU 12. ITS WIND FIELD WILL EXPAND AND BECOME MORE ASYMMETRIC UNDER THE INFLUENCE OF THE HIGH VWS. THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST TRACK WITH MODELS IN TIGHT AGREEMENT THROUGH THE END OF THE FORECAST PERIOD.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. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 041200Z IS 8 FEET. // NNNN
Public Advisory not available for this storm.
Forecast Discussion not available for this storm.
Time | Speed | Location | Status |
---|---|---|---|
55 knots | 38.9, 137.7 | ||
40 knots | 46.0, 138.6 | ||
25 knots | 50.7, 136.6 |
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