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Tropical Storm Zeta Graphics
2020-10-26 06:54:00| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Mon, 26 Oct 2020 05:54:00 GMT Wind Speed Probabilities last updated Mon, 26 Oct 2020 03:32:48 GMT
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Summary for Tropical Storm Zeta (AT3/AL282020)
2020-10-26 06:53:45| National Hurricane Center (Atlantic)
...NOAA HURRICANE HUNTER AIRCRAFT INVESTIGATING ZETA... ...HURRICANE CONDITIONS AND STORM SURGE EXPECTED ACROSS PORTIONS OF THE YUCATAN PENINSULA BY LATE TODAY... As of 2:00 AM EDT Mon Oct 26 the center of Zeta was located near 18.2, -83.9 with movement NNW at 2 mph. The minimum central pressure was 996 mb with maximum sustained winds of about 60 mph.
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Tropical Storm Zeta Public Advisory Number 6A
2020-10-26 06:53:45| National Hurricane Center (Atlantic)
Issued at 200 AM EDT Mon Oct 26 2020 000 WTNT33 KNHC 260553 TCPAT3 BULLETIN Tropical Storm Zeta Intermediate Advisory Number 6A NWS National Hurricane Center Miami FL AL282020 200 AM EDT Mon Oct 26 2020 ...NOAA HURRICANE HUNTER AIRCRAFT INVESTIGATING ZETA... ...HURRICANE CONDITIONS AND STORM SURGE EXPECTED ACROSS PORTIONS OF THE YUCATAN PENINSULA BY LATE TODAY... SUMMARY OF 200 AM EDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...18.2N 83.9W ABOUT 250 MI...405 KM SE OF COZUMEL MEXICO ABOUT 265 MI...425 KM SSE OF THE WESTERN TIP OF CUBA MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...NNW OR 330 DEGREES AT 2 MPH...4 KM/H MINIMUM CENTRAL PRESSURE...996 MB...29.41 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Tulum to Rio Lagartos Mexico * Cozumel A Tropical Storm Warning is in effect for... * Pinar del Rio Cuba A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 200 AM EDT (0600 UTC), the center of Tropical Storm Zeta was located near latitude 18.2 North, longitude 83.9 West. Zeta is drifting toward the north-northwest near 2 mph (4 km/h), but a faster northwestward motion is expected over the next couple of days, followed by a turn to the north. On the forecast track, the center of Zeta will move near or over the northern Yucatan Peninsula or the Yucatan Channel later today or tonight, move over the southern Gulf of Mexico on Tuesday, and approach the northern Gulf Coast on Wednesday. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Strengthening is forecast, and Zeta is expected to become a hurricane before it moves near or over the Yucatan Peninsula. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. The estimated minimum central pressure is 996 mb (29.41 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Tropical Storm Zeta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3, WMO header WTNT43 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT3.shtml. RAINFALL: Rainfall totals of 4 to 8 inches with local amounts of 12 inches are possible through Wednesday along and east-northeast of Zetas track from Jamaica, the Cayman Islands, central to western Cuba, and the northeast Yucatan peninsula of Mexico. Additional rainfall amounts of 1 to 2 inches with local amounts of 4 inches are possible across Southern Florida and the Keys through Tuesday, with isolated storm total accumulations of 8 inches. Between Wednesday and Friday, storm total rainfall of 2 to 4 inches, with local 6 inch amounts, is expected across sections of the U.S. Gulf Coast and the southern U.S. near and in advance of Zeta. Heavy rainfall will spread north into the Tennessee Valley, Southern Appalachians, and portions of the Mid-Atlantic States near and in advance of Zeta late in the week. The expected rainfall could lead to flash flooding and minor river flooding. By Wednesday, heavy rainfall associated with Zeta will begin to affect the central Gulf Coast region, which may lead to flash flooding in urban areas. WIND: Hurricane conditions are expected within the Hurricane Warning area in the Yucatan Peninsula by late today. Tropical storm conditions could occur in the warning area in western Cuba beginning later today. STORM SURGE: A dangerous storm surge will raise water levels by as much as 1-3 feet above normal tide levels along the immediate coast in the Hurricane Warning area near and to the north of where the center makes landfall in the Yucatan Peninsula. NEXT ADVISORY ------------- Next complete advisory at 500 AM EDT. $$ Forecaster Brown/Stewart
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Tropical Storm Zeta Graphics
2020-10-26 03:46:20| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Mon, 26 Oct 2020 02:46:20 GMT Wind Speed Probabilities last updated Mon, 26 Oct 2020 03:32:48 GMT
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Tropical Storm Zeta Forecast Discussion Number 6
2020-10-26 03:44:45| National Hurricane Center (Atlantic)
Issued at 1100 PM EDT Sun Oct 25 2020 000 WTNT43 KNHC 260244 TCDAT3 Tropical Storm Zeta Discussion Number 6 NWS National Hurricane Center Miami FL AL282020 1100 PM EDT Sun Oct 25 2020 The tropical storm continues to produce deep convection on its south side, with the low-level center estimated to be near the northern edge of the thunderstorms. The last pass from the NOAA Hurricane Hunters a few hours ago indicated that the minimum pressure had fallen to 997 mb, and since the storm appears better organized than before the initial intensity is nudged up to 50 kt. This intensity estimate is slightly above the latest Dvorak numbers. The NOAA Hurricane Hunters are planning to be in Zeta again overnight and that data will be helpful in assessing the storm's intensity and structure. Zeta has not moved much during the past several hours, and the initial motion is a very slow north-northwest drift. As ridging begins to build over and near Florida, Zeta is forecast to move faster to the northwest overnight and Monday, and that should take the center of the cyclone near or over the northeastern portion of the Yucatan Peninsula in about 24 hours. The ridge is then expected to shift eastward over the western Atlantic on Tuesday and Wednesday as a large and quite powerful mid- to upper-level low moves eastward across the southwest and south-central United States. This change in the steering pattern should cause Zeta to accelerate northward toward the northern Gulf Coast, and likely make landfall there on Wednesday. The models remain in poor agreement on the details of the evolution of the steering pattern and consequently, there is about a 300 n mi spread in the landfall locations from the various models, which currently spans the region from the far western Florida panhandle to western Louisiana. The NHC track forecast is a little west of the previous one trending toward the middle of the guidance envelope. Based on the poor model agreement, the confidence in the track forecast is lower than normal. It is hoped that data being collected by the NOAA Gulfstream jet flying around Zeta and special NWS weather balloon launches will help the models come into better agreement on the future track of Zeta soon. Given the low wind shear conditions, moist air mass, and high oceanic heat content over the northwestern Caribbean, steady strengthening seems likely until Zeta reaches the Yucatan Peninsula by late Monday. The cyclone is expected to be a hurricane at landfall in Mexico, and the new forecast shows a slightly higher intensity there based on the new models and favorable conditions. The models differ on how long the core of Zeta will be inland over the Yucatan, but in general, it seems likely that significant weakening won't occur given the storm's expected increasing forward speed. The overall environmental conditions are anticipated to remain generally favorable while Zeta moves across the southern Gulf of Mexico, but there should be an increase in shear when it reaches the central Gulf and the cyclone will then be moving over the cooler shelf waters over the northern Gulf. The combination of the stronger shear and cooler waters should cause Zeta to level off in strength and perhaps weaken slightly before the U.S. landfall. The intensity models are in fair agreement, and the NHC forecast lies near the HCCA and IVCN consensus models. KEY MESSAGES: 1. Hurricane conditions and storm surge are expected in portions of the northern Yucatan Peninsula of Mexico Monday night and early Tuesday. Tropical storm conditions could occur over extreme western Cuba on Monday. 2. Through Wednesday, heavy rainfall is expected from Zeta across portions of central and western Cuba, the Cayman Islands, Jamaica, the northeast Yucatan peninsula of Mexico, southern Florida and the Keys. This rainfall could lead to flash flooding in urban areas. 3. Zeta is forecast to be at or near hurricane strength when it approaches the northern Gulf Coast on Wednesday, and there is an increasing risk of storm surge, rainfall, and wind impacts from Louisiana to the Florida Panhandle. Residents in these areas should monitor the progress of Zeta and updates to the forecast. FORECAST POSITIONS AND MAX WINDS INIT 26/0300Z 18.1N 83.8W 50 KT 60 MPH 12H 26/1200Z 18.9N 84.7W 60 KT 70 MPH 24H 27/0000Z 20.2N 86.5W 75 KT 85 MPH 36H 27/1200Z 21.8N 88.6W 65 KT 75 MPH 48H 28/0000Z 24.0N 90.4W 65 KT 75 MPH 60H 28/1200Z 27.1N 91.1W 65 KT 75 MPH 72H 29/0000Z 31.1N 89.6W 50 KT 60 MPH...INLAND 96H 30/0000Z 38.7N 78.8W 30 KT 35 MPH...POST-TROP/EXTRATROP 120H 31/0000Z...DISSIPATED $$ Forecaster Cangialosi
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