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Tropical Depression Bertha Public Advisory Number 4
2020-05-28 04:32:16| National Hurricane Center (Atlantic)
The NHC has issued its final advisory on this system. Public Advisories from the Weather Prediction Center will provide updates as long as the system remains a flood threat. Issued at 1100 PM EDT Wed May 27 2020
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Tropical Depression Bertha Graphics
2020-05-27 22:34:59| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Wed, 27 May 2020 20:34:59 GMT Wind Speed Probabilities last updated Wed, 27 May 2020 20:34:59 GMT
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Tropical Depression Bertha Forecast Discussion Number 3
2020-05-27 22:34:16| National Hurricane Center (Atlantic)
Issued at 500 PM EDT Wed May 27 2020 000 WTNT42 KNHC 272034 TCDAT2 Tropical Depression Bertha Discussion Number 3 NWS National Hurricane Center Miami FL AL022020 500 PM EDT Wed May 27 2020 Surface observations and WSR-88D radar data indicate that the center of Bertha continues to move farther inland across central and northern South Carolina. Based on surface observations, the maximum sustained winds have decreased to near 25 kt, with these winds mainly along the coastal areas to the east of the center. Additional weakening is expected as the system moves farther inland, with Bertha forecast to decay to a remnant low pressure area on Thursday, followed by dissipation on Thursday night. The initial motion is 340/13. The cyclone is located between the subtropical ridge to the east and a large deep-layer low pressure area over the lower Mississippi River valley. These features should steer the system and its associated rainfall generally northward during the next day or so, followed by a turn toward the north-northeast before dissipation between 24-36 h. The new forecast track is nudged a little to the west of the previous track based mainly on the initial location and motion. This is the last advisory on Bertha issued by the National Hurricane Center. Future information on this system can be found in Public Advisories issued by the Weather Prediction Center beginning at 11 PM EDT, under AWIPS header TCPAT2, WMO header WTNT32 KWNH, and on the web at http://www.wpc.ncep.noaa.gov. Key Messages: 1. Bertha may produce life-threatening flash flooding across portions of northeastern South Carolina into west central to far southeast North Carolina and Southwest Virginia. Ongoing river flooding will be aggravated and recessions prolonged in the region. FORECAST POSITIONS AND MAX WINDS INIT 27/2100Z 34.4N 80.3W 25 KT 30 MPH...INLAND 12H 28/0600Z 37.0N 80.7W 25 KT 30 MPH...INLAND 24H 28/1800Z 41.7N 79.7W 20 KT 25 MPH...POST-TROP/REMNT LOW 36H 29/0600Z...DISSIPATED $$ Forecaster Beven
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Summary for Tropical Depression Bertha (AT2/AL022020)
2020-05-27 22:33:44| National Hurricane Center (Atlantic)
...CENTER OF BERTHA MOVING FARTHER INLAND... ...HEAVY RAINFALL SPREADING ACROSS THE CAROLINAS... As of 5:00 PM EDT Wed May 27 the center of Bertha was located near 34.4, -80.3 with movement NNW at 15 mph. The minimum central pressure was 1008 mb with maximum sustained winds of about 30 mph.
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Tropical Depression Bertha Public Advisory Number 3
2020-05-27 22:33:44| National Hurricane Center (Atlantic)
Issued at 500 PM EDT Wed May 27 2020 000 WTNT32 KNHC 272033 TCPAT2 BULLETIN Tropical Depression Bertha Advisory Number 3 NWS National Hurricane Center Miami FL AL022020 500 PM EDT Wed May 27 2020 ...CENTER OF BERTHA MOVING FARTHER INLAND... ...HEAVY RAINFALL SPREADING ACROSS THE CAROLINAS... SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...34.4N 80.3W ABOUT 55 MI...85 KM ENE OF COLUMBIA SOUTH CAROLINA ABOUT 95 MI...150 KM WNW OF MYRTLE BEACH SOUTH CAROLINA MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H PRESENT MOVEMENT...NNW OR 340 DEGREES AT 15 MPH...24 KM/H MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM EDT (2100 UTC), the center of Tropical Depression Bertha was located near latitude 34.4 North, longitude 80.3 West. The depression is moving toward the north-northwest near 15 mph (24 km/h). A turn toward the north at a faster forward speed is expected tonight, followed by a turn toward the north-northeast on Thursday. On the forecast track, Bertha will move across northern South Carolina this evening and into central North Carolina and southwestern Virginia later tonight. Maximum sustained winds have decreased to near 30 mph (45 km/h) with higher gusts, mainly along the coast to the east of the center. Additional weakening is expected, and Bertha is forecast to degenerate to a remnant low pressure area on Thursday. The estimated minimum central pressure is 1008 mb (29.77 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Bertha is expected to produce total rain accumulation of 2 to 4 inches with isolated totals of 8 inches across northeastern South Carolina into west central to far southeastern North Carolina and southwest Virginia. Given very saturated antecedent conditions, this rainfall may produce life threatening flash flooding, aggravate and prolong ongoing river flooding, and produce rapid out of bank rises on smaller rivers. WIND: Gusty winds will continue over portions of eastern South Carolina this evening. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on this system. Future information on this system can be found in Public Advisories issued by the Weather Prediction Center beginning at 11 PM EDT, under AWIPS header TCPAT2, WMO header WTNT32 KWNH, and on the web at http://www.wpc.ncep.noaa.gov. $$ Forecaster Beven
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