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Tropical Depression Fifteen-E Public Advisory Number 2A
2021-09-08 07:41:30| National Hurricane Center (East Pacific)
Issued at 1200 AM MDT Wed Sep 08 2021 000 WTPZ35 KNHC 080541 TCPEP5 BULLETIN Tropical Depression Fifteen-E Intermediate Advisory Number 2A NWS National Hurricane Center Miami FL EP152021 1200 AM MDT Wed Sep 08 2021 ...DEPRESSION NOT MOVING MUCH OFF THE COAST OF WEST-CENTRAL MEXICO... SUMMARY OF 1200 AM MDT...0600 UTC...INFORMATION ----------------------------------------------- LOCATION...18.3N 107.3W ABOUT 190 MI...305 KM WSW OF MANZANILLO MEXICO ABOUT 355 MI...575 KM SSE OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NW OR 320 DEGREES AT 2 MPH...4 KM/H MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * The southern portion of Baja California Sur from Todos Santos to Los Barriles A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in Baja California Sur should monitor the progress of this system. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1200 AM MDT (0600 UTC), the center of Tropical Depression Fifteen-E was located near latitude 18.3 North, longitude 107.3 West. The depression has been meandering for much of the last day or so, and the longer-term motion is toward the northwest near 2 mph (4 km/h). A continued motion toward the northwest but with a gradual increase in forward speed is expected through Thursday. On the forecast track, the center of the cyclone will approach the southern end of the Baja California Peninsula late Thursday and Thursday night. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Strengthening is expected over the next couple of days, and the depression is forecast to become a tropical storm later today, and a hurricane on Thursday or Thursday night. The estimated minimum central pressure is 1007 mb (29.74 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are possible in the watch area in Baja California Sur by late Thursday or Thursday night. RAINFALL: Outer rainbands from the depression are likely to produce locally heavy rainfall and gusty winds along the coast of the Mexican states of Colima and Jalisco this morning. Locally heavy rainfall is also possible over portions of Baja California Sur Thursday and Thursday night. SURF: The strengthening cyclone is expected to generate swells that will affect the portions of the southern Baja California peninsula by Thursday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 300 AM MDT. $$ Forecaster Berg
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Tropical Depression Fifteen-E Graphics
2021-09-08 07:41:24| National Hurricane Center (East Pacific)
5-Day Uncertainty Track last updated Wed, 08 Sep 2021 05:41:24 GMT Wind Speed Probabilities last updated Wed, 08 Sep 2021 03:29:00 GMT
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Tropical Depression Fifteen-E Graphics
2021-09-08 04:45:02| National Hurricane Center (East Pacific)
5-Day Uncertainty Track last updated Wed, 08 Sep 2021 02:45:02 GMT Wind Speed Probabilities last updated Wed, 08 Sep 2021 02:45:03 GMT
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Tropical Depression Fifteen-E Forecast Discussion Number 2
2021-09-08 04:43:53| National Hurricane Center (East Pacific)
Issued at 900 PM MDT Tue Sep 07 2021 000 WTPZ45 KNHC 080243 TCDEP5 Tropical Depression Fifteen-E Discussion Number 2 NWS National Hurricane Center Miami FL EP152021 900 PM MDT Tue Sep 07 2021 Satellite imagery indicates that Tropical Depression Fifteen-E has changed little in organization during the past several hours. While the system is producing good convective banding in the eastern semicircle, the convection near the center is currently poorly organized, and there is no evidence that the inner core has consolidated. Thus, the initial intensity remains 30 kt based mainly on continuity from the previous advisory. A combination of conventional and 37 GHz microwave satellite imagery suggests that the center is farther east than previously thought, so the new initial position is about a half degree east of the previous advisory position. The initial motion is a somewhat uncertain 300/5. A large mid-level anticyclone is located over the southwestern United States with a ridge extending southeastward across Mexico. The anticyclone should shift a little eastward during the next few days, with the ridge extending southward across Mexico. This evolution should steer the tropical cyclone generally northwestward for the next several days, followed by a more westward motion as the cyclone weakens over cooler water and is steered by low-level easterly flow. The track guidance is in good agreement with this scenario, and the new forecast track is near the consensus models. However, the more eastward initial position required an eastward shift to the forecast track. It should be noted that some erratic motion is possible until the cyclone develops a better-defined inner core. Conditions appear favorable for strengthening until the system reaches the 26-deg-C SST isotherm in 60-72 h, with the main restraining factor being the current lack of internal organization. The intensity forecast has only minor adjustments from the previous forecast and calls for the depression to become a tropical storm in about 12 h and a hurricane in about 48 h. Steady to rapid weakening is expected after 60-72 h due to the cooler water and dry air entrainment. The more easterly initial position and the new forecast track require a Tropical Storm Watch for portions of Baja California Sur at this time. Interests elsewhere in Baja California Sur should monitor the progress of this system. FORECAST POSITIONS AND MAX WINDS INIT 08/0300Z 18.2N 107.4W 30 KT 35 MPH 12H 08/1200Z 18.6N 107.7W 35 KT 40 MPH 24H 09/0000Z 19.4N 108.4W 45 KT 50 MPH 36H 09/1200Z 20.4N 109.2W 55 KT 65 MPH 48H 10/0000Z 21.7N 110.6W 65 KT 75 MPH 60H 10/1200Z 22.8N 112.0W 65 KT 75 MPH 72H 11/0000Z 23.7N 113.7W 55 KT 65 MPH 96H 12/0000Z 24.5N 116.5W 40 KT 45 MPH 120H 13/0000Z 24.0N 119.0W 25 KT 30 MPH...POST-TROP/REMNT LOW $$ Forecaster Beven
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Summary for Tropical Depression Fifteen-E (EP5/EP152021)
2021-09-08 04:43:23| National Hurricane Center (East Pacific)
...CENTER OF THE DEPRESSION A LITTLE FARTHER EAST THAN PREVIOUSLY... ...TROPICAL STORM WATCH ISSUED FOR PORTIONS OF BAJA CALIFORNIA SUR... As of 9:00 PM MDT Tue Sep 7 the center of Fifteen-E was located near 18.2, -107.4 with movement WNW at 5 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.
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