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Tropical Storm Theta Wind Speed Probabilities Number 11
2020-11-12 15:45:18| National Hurricane Center (Atlantic)
Issued at 1500 UTC THU NOV 12 2020 000 FONT15 KNHC 121445 PWSAT5 TROPICAL STORM THETA WIND SPEED PROBABILITIES NUMBER 11 NWS NATIONAL HURRICANE CENTER MIAMI FL AL302020 1500 UTC THU NOV 12 2020 AT 1500Z THE CENTER OF TROPICAL STORM THETA WAS LOCATED NEAR LATITUDE 31.6 NORTH...LONGITUDE 28.8 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 55 KTS...65 MPH...100 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME EASTERN STANDARD TIME (EST)...SUBTRACT 5 HOURS FROM Z TIME CENTRAL STANDARD TIME (CST)...SUBTRACT 6 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 12Z THU AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY 64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 12Z THU 00Z FRI 12Z FRI 00Z SAT 12Z SAT 12Z SUN 12Z MON PERIODS TO TO TO TO TO TO TO 00Z FRI 12Z FRI 00Z SAT 12Z SAT 12Z SUN 12Z MON 12Z TUE FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT $$ FORECASTER LATTO
Tropical Storm Theta Forecast Advisory Number 11
2020-11-12 15:44:48| National Hurricane Center (Atlantic)
Issued at 1500 UTC THU NOV 12 2020 000 WTNT25 KNHC 121444 TCMAT5 TROPICAL STORM THETA FORECAST/ADVISORY NUMBER 11 NWS NATIONAL HURRICANE CENTER MIAMI FL AL302020 1500 UTC THU NOV 12 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. TROPICAL STORM CENTER LOCATED NEAR 31.6N 28.8W AT 12/1500Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE EAST OR 80 DEGREES AT 10 KT ESTIMATED MINIMUM CENTRAL PRESSURE 990 MB MAX SUSTAINED WINDS 55 KT WITH GUSTS TO 65 KT. 50 KT....... 0NE 0SE 60SW 60NW. 34 KT.......140NE 100SE 130SW 180NW. 12 FT SEAS..240NE 300SE 540SW 360NW. 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 31.6N 28.8W AT 12/1500Z AT 12/1200Z CENTER WAS LOCATED NEAR 31.5N 29.4W FORECAST VALID 13/0000Z 31.7N 27.0W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 0NE 0SE 50SW 50NW. 34 KT...130NE 100SE 100SW 140NW. FORECAST VALID 13/1200Z 31.8N 24.7W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 0NE 30SE 30SW 20NW. 34 KT... 90NE 100SE 70SW 90NW. FORECAST VALID 14/0000Z 31.8N 22.6W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 0NE 30SE 20SW 0NW. 34 KT... 90NE 80SE 80SW 90NW. FORECAST VALID 14/1200Z 31.5N 21.0W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 0NE 20SE 20SW 0NW. 34 KT... 70NE 60SE 60SW 70NW. FORECAST VALID 15/0000Z 31.2N 20.2W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 30NE 40SE 40SW 30NW. FORECAST VALID 15/1200Z 31.1N 19.6W...POST-TROP/REMNT LOW MAX WIND 30 KT...GUSTS 40 KT. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 16/1200Z 32.7N 19.2W...POST-TROP/REMNT LOW MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 17/1200Z 37.6N 17.4W...POST-TROP/REMNT LOW MAX WIND 30 KT...GUSTS 40 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 31.6N 28.8W NEXT ADVISORY AT 12/2100Z $$ FORECASTER LATTO
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Tropical Storm Theta Graphics
2020-11-12 09:50:45| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Thu, 12 Nov 2020 08:50:45 GMT Wind Speed Probabilities last updated Thu, 12 Nov 2020 09:31:37 GMT
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Tropical Storm Theta Forecast Discussion Number 10
2020-11-12 09:49:43| National Hurricane Center (Atlantic)
Issued at 900 AM GMT Thu Nov 12 2020 000 WTNT45 KNHC 120849 TCDAT5 Tropical Storm Theta Discussion Number 10 NWS National Hurricane Center Miami FL AL302020 900 AM GMT Thu Nov 12 2020 Theta currently is comprised of a large swirl of low- to mid-level clouds with no convection near the center. However, a band of convection is wrapped about three-quarters of the way around the center at a distance of about 200 n mi in the eastern semicircle and 100 n mi in the western semicircle. Overall, the cyclone has somewhat of a subtropical appearance at this time. Since there has been no data from the cyclone's core region since the last scatterometer pass, the initial intensity is held at 55 kt. The storm continued to jog a little to the left since the last advisory, but the last few satellite images suggest a more eastward motion has resumed. The initial motion is a somewhat uncertain 060/10. For the next 24 h or so, Theta is expected to continue to move east-northeastward as it rounds the north side of a mid-level ridge centered over the Cabo Verde islands. An eastward to east-southeastward motion is expected from 24-72 h as the mid-level ridge to the south weakens and mid- to upper-level northerly flow moves over the cyclone. After that time, Theta or its remnants is expected to be steered northeastward in the low-level flow to the southeast of a deep-layer mid-latitude cyclone over the northeastern Atlantic. The new forecast track is adjusted north of the previous track based on the initial position and motion, and it lies near the various consensus models. Theta is forecast to change little in intensity during the next 36 h or so as it moves into the light shear area near an upper-level trough axis. After that time, the trough moves south of the cyclone, and strong northerly vertical shear should occur along with the entrainment of stable air. This combination should cause Theta to quickly weaken, and the intensity forecast calls for the system to decay to a remnant low pressure area by 96 h. The new intensity forecast has only minor adjustments from the old forecast, and it lies a little above the intensity consensus. FORECAST POSITIONS AND MAX WINDS INIT 12/0900Z 31.7N 30.2W 55 KT 65 MPH 12H 12/1800Z 32.0N 28.5W 55 KT 65 MPH 24H 13/0600Z 32.3N 26.2W 55 KT 65 MPH 36H 13/1800Z 32.3N 24.0W 55 KT 65 MPH 48H 14/0600Z 32.0N 22.1W 50 KT 60 MPH 60H 14/1800Z 31.7N 20.8W 40 KT 45 MPH 72H 15/0600Z 31.6N 20.1W 35 KT 40 MPH 96H 16/0600Z 33.0N 19.5W 30 KT 35 MPH...POST-TROP/REMNT LOW 120H 17/0600Z 37.0N 18.0W 30 KT 35 MPH...POST-TROP/REMNT LOW $$ Forecaster Beven
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Summary for Tropical Storm Theta (AT5/AL302020)
2020-11-12 09:49:14| National Hurricane Center (Atlantic)
...THETA MOVING EAST-NORTHEASTWARD WITH LITTLE CHANGE IN STRENGTH... As of 9:00 AM GMT Thu Nov 12 the center of Theta was located near 31.7, -30.2 with movement ENE at 12 mph. The minimum central pressure was 990 mb with maximum sustained winds of about 65 mph.
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