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Hurricane Douglas Graphics

2020-07-22 22:57:35| National Hurricane Center (East Pacific)

5-Day Uncertainty Track last updated Wed, 22 Jul 2020 20:57:35 GMT Wind Speed Probabilities last updated Wed, 22 Jul 2020 21:31:56 GMT

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Hurricane Douglas Forecast Discussion Number 10

2020-07-22 22:39:10| National Hurricane Center (East Pacific)

Issued at 1100 AM HST Wed Jul 22 2020 000 WTPZ43 KNHC 222039 TCDEP3 Hurricane Douglas Discussion Number 10 NWS National Hurricane Center Miami FL EP082020 1100 AM HST Wed Jul 22 2020 Douglas's structure has continued to improve, with a more well-defined eye becoming apparent in visible and microwave satellite images. Subjective Dvorak intensity estimates from TAFB and SAB range from T4.0/65 kt and T5.0/90 kt, while the latest UW-CIMSS ADT is 4.0. Douglas's initial intensity is therefore raised to 70 kt as a blend of the satellite estimates. The hurricane has begun to gain some latitude, and the initial motion is just north of due west, or 275/14 kt. The track forecast reasoning has not changed since earlier this morning, with a persistent mid-tropospheric ridge to Douglas's north expected to be the main driving force for the entire 5-day forecast period. Douglas is forecast to turn west-northwestward by this evening, and then maintain that heading with some increase in forward speed through day 4 as it approaches the Hawaiian Islands. A bend back to the west is then expected at the end of the forecast period. The new NHC track forecast lies right along the forecast path from the previous advisory through 60 hours, although it has been shifted slightly north on days 3-5 based on an overall shift of the guidance envelope at those times. Confidence in the track forecast at this stage is rather high. Intensity-wise, low shear and sea surface temperature of 28-29C favor continued strengthening, potentially at a rapid rate for the next 24 hours. SHIPS, HCCA, and the Florida State Superensemble all bring the intensity near or at major hurricane strength in 24-36 hours, which qualifies as rapid intensification. The NHC intensity forecast is in line with these models and lies near the upper bound of the guidance envelope given the favorable conditions. Some weakening is expected to begin by 48 hours due to cooler waters, but since vertical shear is not expected to increase until around day 4, the weakening rate is likely to be gradual. This forecast increases the chance that Douglas could maintain hurricane intensity as it approaches the Hawaiian Islands, and all interests on the islands should monitor the forecasts as they evolve over the next few days. Key Messages: 1. Douglas is expected to move near or over portions of the Hawaiian Islands this weekend, and there is an increasing chance that strong winds and heavy rainfall could affect portions of the state beginning on Sunday. Interests on the Hawaiian Islands should continue to monitor the progress of Douglas and the official forecasts as they evolve over the next few days. FORECAST POSITIONS AND MAX WINDS INIT 22/2100Z 12.1N 130.9W 70 KT 80 MPH 12H 23/0600Z 12.7N 132.9W 85 KT 100 MPH 24H 23/1800Z 13.8N 135.8W 100 KT 115 MPH 36H 24/0600Z 15.1N 138.9W 100 KT 115 MPH 48H 24/1800Z 16.4N 141.9W 90 KT 105 MPH 60H 25/0600Z 17.6N 145.0W 80 KT 90 MPH 72H 25/1800Z 18.7N 148.0W 75 KT 85 MPH 96H 26/1800Z 20.0N 154.0W 65 KT 75 MPH...NEAR HAWAII 120H 27/1800Z 21.0N 160.0W 55 KT 65 MPH...NEAR HAWAII $$ Forecaster Berg

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Summary for Hurricane Douglas (EP3/EP082020)

2020-07-22 22:38:39| National Hurricane Center (East Pacific)

...DOUGLAS CONTINUES TO STRENGTHEN... ...COULD BECOME A MAJOR HURRICANE ON THURSDAY... As of 11:00 AM HST Wed Jul 22 the center of Douglas was located near 12.1, -130.9 with movement W at 16 mph. The minimum central pressure was 989 mb with maximum sustained winds of about 80 mph.

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Hurricane Douglas Public Advisory Number 10

2020-07-22 22:38:39| National Hurricane Center (East Pacific)

Issued at 1100 AM HST Wed Jul 22 2020 000 WTPZ33 KNHC 222038 TCPEP3 BULLETIN Hurricane Douglas Advisory Number 10 NWS National Hurricane Center Miami FL EP082020 1100 AM HST Wed Jul 22 2020 ...DOUGLAS CONTINUES TO STRENGTHEN... ...COULD BECOME A MAJOR HURRICANE ON THURSDAY... SUMMARY OF 1100 AM HST...2100 UTC...INFORMATION ----------------------------------------------- LOCATION...12.1N 130.9W ABOUT 1570 MI...2525 KM WSW OF THE SOUTHERN TIP OF BAJA CALIFORNIA ABOUT 1690 MI...2715 KM ESE OF HILO HAWAII MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H PRESENT MOVEMENT...W OR 275 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interests in the Hawaiian Islands should monitor the progress of Douglas. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM HST (2100 UTC), the eye of Hurricane Douglas was located near latitude 12.1 North, longitude 130.9 West. Douglas is moving toward the west near 16 mph (26 km/h). A turn toward the west-northwest is expected by this evening, and a west- northwestward motion at a faster forward speed is forecast to continue into the weekend. Maximum sustained winds have increased to near 80 mph (130 km/h) with higher gusts. Additional strengthening is forecast during the next day or two, and Douglas could become a major hurricane on Thursday. Hurricane-force winds extend outward up to 10 miles (20 km) from the center, and tropical-storm-force winds extend outward up to 105 miles (165 km). The estimated minimum central pressure is 989 mb (29.21 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 500 PM HST. $$ Forecaster Berg

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Hurricane Douglas Wind Speed Probabilities Number 10

2020-07-22 22:38:39| National Hurricane Center (East Pacific)

Issued at 2100 UTC WED JUL 22 2020 000 FOPZ13 KNHC 222038 PWSEP3 HURRICANE DOUGLAS WIND SPEED PROBABILITIES NUMBER 10 NWS NATIONAL HURRICANE CENTER MIAMI FL EP082020 2100 UTC WED JUL 22 2020 AT 2100Z THE CENTER OF HURRICANE DOUGLAS WAS LOCATED NEAR LATITUDE 12.1 NORTH...LONGITUDE 130.9 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 70 KTS...80 MPH...130 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 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 18Z WED 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 18Z WED 06Z THU 18Z THU 06Z FRI 18Z FRI 18Z SAT 18Z SUN PERIODS TO TO TO TO TO TO TO 06Z THU 18Z THU 06Z FRI 18Z FRI 18Z SAT 18Z SUN 18Z MON FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT 15N 135W 34 1 20(21) 2(23) X(23) X(23) X(23) X(23) 15N 135W 50 X 3( 3) X( 3) X( 3) X( 3) X( 3) X( 3) 15N 140W 34 X X( X) 30(30) 36(66) 1(67) X(67) X(67) 15N 140W 50 X X( X) 8( 8) 27(35) X(35) X(35) X(35) 15N 140W 64 X X( X) 2( 2) 12(14) X(14) X(14) X(14) 15N 145W 34 X X( X) X( X) X( X) 9( 9) X( 9) X( 9) 15N 145W 50 X X( X) X( X) X( X) 3( 3) X( 3) X( 3) 20N 145W 34 X X( X) X( X) X( X) 11(11) X(11) X(11) 20N 145W 50 X X( X) X( X) X( X) 3( 3) X( 3) X( 3) 20N 150W 34 X X( X) X( X) X( X) 7( 7) 28(35) X(35) 20N 150W 50 X X( X) X( X) X( X) 2( 2) 11(13) X(13) 20N 150W 64 X X( X) X( X) X( X) X( X) 3( 3) X( 3) 20N 151W 34 X X( X) X( X) X( X) 3( 3) 31(34) 1(35) 20N 151W 50 X X( X) X( X) X( X) 1( 1) 12(13) 1(14) 20N 151W 64 X X( X) X( X) X( X) X( X) 4( 4) X( 4) BUOY 51004 34 X X( X) X( X) X( X) X( X) 15(15) 1(16) BUOY 51004 50 X X( X) X( X) X( X) X( X) 4( 4) 1( 5) BUOY 51004 64 X X( X) X( X) X( X) X( X) 1( 1) X( 1) 20N 154W 34 X X( X) X( X) X( X) X( X) 22(22) 8(30) 20N 154W 50 X X( X) X( X) X( X) X( X) 8( 8) 2(10) 20N 154W 64 X X( X) X( X) X( X) X( X) 1( 1) 1( 2) HILO 34 X X( X) X( X) X( X) X( X) 15(15) 12(27) HILO 50 X X( X) X( X) X( X) X( X) 4( 4) 5( 9) HILO 64 X X( X) X( X) X( X) X( X) 1( 1) 1( 2) BRADSHAW AAF 34 X X( X) X( X) X( X) X( X) 7( 7) 11(18) BRADSHAW AAF 50 X X( X) X( X) X( X) X( X) 2( 2) 3( 5) 18N 156W 34 X X( X) X( X) X( X) X( X) 5( 5) 8(13) 18N 156W 50 X X( X) X( X) X( X) X( X) 2( 2) 3( 5) SOUTH POINT 34 X X( X) X( X) X( X) X( X) 9( 9) 11(20) SOUTH POINT 50 X X( X) X( X) X( X) X( X) 2( 2) 2( 4) 21N 156W 34 X X( X) X( X) X( X) X( X) 9( 9) 14(23) 21N 156W 50 X X( X) X( X) X( X) X( X) 2( 2) 4( 6) KAILUA-KONA 34 X X( X) X( X) X( X) X( X) 9( 9) 14(23) KAILUA-KONA 50 X X( X) X( X) X( X) X( X) 2( 2) 3( 5) KAHULUI 34 X X( X) X( X) X( X) X( X) 7( 7) 16(23) KAHULUI 50 X X( X) X( X) X( X) X( X) 1( 1) 5( 6) 21N 158W 34 X X( X) X( X) X( X) X( X) 2( 2) 17(19) 21N 158W 50 X X( X) X( X) X( X) X( X) X( X) 5( 5) BARKING SANDS 34 X X( X) X( X) X( X) X( X) X( X) 10(10) HANA 34 X X( X) X( X) X( X) X( X) 9( 9) 15(24) HANA 50 X X( X) X( X) X( X) X( X) 2( 2) 6( 8) LANAI CITY 34 X X( X) X( X) X( X) X( X) 5( 5) 18(23) LANAI CITY 50 X X( X) X( X) X( X) X( X) 1( 1) 4( 5) LANAI CITY 64 X X( X) X( X) X( X) X( X) X( X) 1( 1) KAUNAKAKAI 34 X X( X) X( X) X( X) X( X) 5( 5) 17(22) KAUNAKAKAI 50 X X( X) X( X) X( X) X( X) 1( 1) 4( 5) KAUNAKAKAI 64 X X( X) X( X) X( X) X( X) X( X) 1( 1) BUOY 51002 34 X X( X) X( X) X( X) X( X) 1( 1) 5( 6) HONOLULU 34 X X( X) X( X) X( X) X( X) 3( 3) 16(19) HONOLULU 50 X X( X) X( X) X( X) X( X) X( X) 4( 4) JOINT BASE PHH 34 X X( X) X( X) X( X) X( X) 3( 3) 16(19) JOINT BASE PHH 50 X X( X) X( X) X( X) X( X) X( X) 4( 4) LIHUE 34 X X( X) X( X) X( X) X( X) 1( 1) 9(10) 20N 160W 34 X X( X) X( X) X( X) X( X) X( X) 12(12) 20N 160W 50 X X( X) X( X) X( X) X( X) X( X) 3( 3) NIIHAU 34 X X( X) X( X) X( X) X( X) X( X) 11(11) 21N 160W 34 X X( X) X( X) X( X) X( X) X( X) 13(13) 21N 160W 50 X X( X) X( X) X( X) X( X) X( X) 4( 4) BUOY 51003 34 X X( X) X( X) X( X) X( X) X( X) 8( 8) NIHOA 34 X X( X) X( X) X( X) X( X) X( X) 4( 4) $$ FORECASTER BERG

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