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Tropical Depression Hilda Forecast Advisory Number 26
2021-08-06 04:33:07| National Hurricane Center (East Pacific)
Issued at 0300 UTC FRI AUG 06 2021 000 WTPZ23 KNHC 060233 TCMEP3 TROPICAL DEPRESSION HILDA FORECAST/ADVISORY NUMBER 26 NWS NATIONAL HURRICANE CENTER MIAMI FL EP082021 0300 UTC FRI AUG 06 2021 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL DEPRESSION CENTER LOCATED NEAR 22.2N 132.2W AT 06/0300Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 305 DEGREES AT 11 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1006 MB MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 22.2N 132.2W AT 06/0300Z AT 06/0000Z CENTER WAS LOCATED NEAR 22.0N 131.7W FORECAST VALID 06/1200Z 22.8N 133.7W MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 07/0000Z 23.5N 135.6W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 07/1200Z 24.0N 137.3W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 08/0000Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 22.2N 132.2W NEXT ADVISORY AT 06/0900Z $$ FORECASTER REINHART/CANGIALOSI
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Tropical Depression Hilda Graphics
2021-08-05 22:32:10| National Hurricane Center (East Pacific)
5-Day Uncertainty Track last updated Thu, 05 Aug 2021 20:32:10 GMT Wind Speed Probabilities last updated Thu, 05 Aug 2021 20:32:10 GMT
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Tropical Depression Hilda Forecast Discussion Number 25
2021-08-05 22:31:35| National Hurricane Center (East Pacific)
Issued at 200 PM PDT Thu Aug 05 2021 000 WTPZ43 KNHC 052031 TCDEP3 Tropical Depression Hilda Discussion Number 25 NWS National Hurricane Center Miami FL EP082021 200 PM PDT Thu Aug 05 2021 Stubborn Hilda refuses to go away. Convection has been pulsing since the previous advisory with cloud tops fluctuating between -30C and -60C in the northeastern quadrant. However, this convection hasn't mixed higher winds downward into the boundary based on a 1634Z ASCAT-A scatterometer pass, which showed 30-31-kt wind vectors north of the center and outside of the convection. The initial intensity is being maintained at 30 kt for this advisory based on the aforementioned ASCAT surface wind data. Gradual weakening should occur now that Hilda is firmly located over sub-23 deg C sea-surface temperatures and will be moving into a drier and more stable air mass. Visible satellite imagery already shows an extensive field of cold-air stratocumulus clouds being entrained into much of the low-level circulation. Hilda is forecast to degenerate into a remnant low tonight or early Friday, and open up into a trough by the weekend, well east of the Hawaiian Islands. The initial motion estimate is 300/11 kt. Hilda should continue on a west-northwestward trajectory for the next couple of days, being steered by a deep-layer subtropical ridge to the north. The latest NHC track forecast is essentially just an update of the previous advisory track, and lies down the middle of the tightly packed consensus models. FORECAST POSITIONS AND MAX WINDS INIT 05/2100Z 21.5N 131.2W 30 KT 35 MPH 12H 06/0600Z 22.2N 132.8W 25 KT 30 MPH 24H 06/1800Z 23.0N 135.0W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 07/0600Z 23.7N 137.2W 20 KT 25 MPH...POST-TROP/REMNT LOW 48H 07/1800Z 24.4N 139.3W 15 KT 15 MPH...POST-TROP/REMNT LOW 60H 08/0600Z...DISSIPATED $$ Forecaster Stewart
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Summary for Tropical Depression Hilda (EP3/EP082021)
2021-08-05 22:31:03| National Hurricane Center (East Pacific)
...HILDA EXPECTED TO WEAKEN INTO A REMNANT LOW BY FRIDAY... As of 2:00 PM PDT Thu Aug 5 the center of Hilda was located near 21.5, -131.2 with movement WNW at 13 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 35 mph.
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Tropical Depression Hilda Public Advisory Number 25
2021-08-05 22:31:03| National Hurricane Center (East Pacific)
Issued at 200 PM PDT Thu Aug 05 2021 000 WTPZ33 KNHC 052030 TCPEP3 BULLETIN Tropical Depression Hilda Advisory Number 25 NWS National Hurricane Center Miami FL EP082021 200 PM PDT Thu Aug 05 2021 ...HILDA EXPECTED TO WEAKEN INTO A REMNANT LOW BY FRIDAY... SUMMARY OF 200 PM PDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...21.5N 131.2W ABOUT 1365 MI...2195 KM W OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...WNW OR 300 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 200 PM PDT (2100 UTC), the center of Tropical Depression Hilda was located near latitude 21.5 North, longitude 131.2 West. The depression is moving toward the west-northwest near 13 mph (20 km/h) and this general motion is expected over the next couple of days. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Gradual weakening is forecast during the next 48 hours, and Hilda is expected to degenerate into a remnant low by late tonight or early Friday. The estimated minimum central pressure is 1006 mb (29.71 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 800 PM PDT. $$ Forecaster Stewart
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