Search Results
.Special credit is due the hurricane reconnaissancemeteorologists of the US. Navy and the U.S. Air Force,whose "detailed eye reports" and "postflight summaries"have been cited extensively.HURRICANE ADELEA disturbance marked by a cloud mass beginning toassume vortex shape was seen on satellite pictures near11"N, 100W, on May 30; this disturbance developed intoan intense tropical storm in less than 24 hr. Ships in thevicinity of the cloud mass reported nearly calm winds onthe 30th. The existence of intense
.Special credit is due the hurricane reconnaissancemeteorologists of the US. Navy and the U.S. Air Force,whose "detailed eye reports" and "postflight summaries"have been cited extensively.HURRICANE ADELEA disturbance marked by a cloud mass beginning toassume vortex shape was seen on satellite pictures near11"N, 100W, on May 30; this disturbance developed intoan intense tropical storm in less than 24 hr. Ships in thevicinity of the cloud mass reported nearly calm winds onthe 30th. The existence of intense
be unnecessary. In 1985, 59 MCCs were identified; this total is approximately 20to 40 more than in any year since 1978, when these annual summaries began. The monthly distribution andseasonal progression of MCCs in 1985 are similar to those of prior years. The enhanced MCC activity in June1985 is associated with a persistent favorable quasi-geostrophic forcing during that period. Significant MCCresearch conducted in 1985 included a prototype large-scale field program (O.-K. PRE-STORM) in May
be unnecessary. In 1985, 59 MCCs were identified; this total is approximately 20to 40 more than in any year since 1978, when these annual summaries began. The monthly distribution andseasonal progression of MCCs in 1985 are similar to those of prior years. The enhanced MCC activity in June1985 is associated with a persistent favorable quasi-geostrophic forcing during that period. Significant MCCresearch conducted in 1985 included a prototype large-scale field program (O.-K. PRE-STORM) in May
ending at 0600 GMT 8September and satellite pictures showed the storm'sconvective cloud structure advected away from thelow-level circulation center. The center passed within75 km southeast of Bermuda and maximum sustained winds at Kindley Naval Air Station remainedbelow gale force. In Fig, 10, Floyd is seen near Bermuda. It continued east-northeastward for severaldays, dissipating near the Azores on 12 September.f. Hurricane Floyd, 3-12 Septemberg. Hurricane Gert, 7-15 September Floyd, recognized
ending at 0600 GMT 8September and satellite pictures showed the storm'sconvective cloud structure advected away from thelow-level circulation center. The center passed within75 km southeast of Bermuda and maximum sustained winds at Kindley Naval Air Station remainedbelow gale force. In Fig, 10, Floyd is seen near Bermuda. It continued east-northeastward for severaldays, dissipating near the Azores on 12 September.f. Hurricane Floyd, 3-12 Septemberg. Hurricane Gert, 7-15 September Floyd, recognized
the coolair that started south.The area of showers in the satellite pictures taken July 2generated a weak low-pressure center with winds reportedas high as 25 kt the next day. A tropical storm with esti-mated 45-kt winds was seen on ESSA 8 pictures of July 4(fig. 4). Strengthening continued, and Denise was classi-fied as a hurricane early on July 6 after confirmation by aU.S. Air Force reconnaissance of the developing eye at1917 GMT on July 5. Strong wall clouds at the time of theradar fix
the coolair that started south.The area of showers in the satellite pictures taken July 2generated a weak low-pressure center with winds reportedas high as 25 kt the next day. A tropical storm with esti-mated 45-kt winds was seen on ESSA 8 pictures of July 4(fig. 4). Strengthening continued, and Denise was classi-fied as a hurricane early on July 6 after confirmation by aU.S. Air Force reconnaissance of the developing eye at1917 GMT on July 5. Strong wall clouds at the time of theradar fix
pictureswere practically void of disturbances or cloud featureswhich are usually antecedent to cyclone development.This unfavorahle pattern for tropical cyclone develop-ment persisted through August. The feature is revealed inthe similarity of the departures from normal charts (700mb.) for July and August. In discussing the circulationfor August, Posey [4] states that the long wave patternchanged very little during the 2 months and that the posi-tive anomaly over the western Atlantic continued in thesame
pictureswere practically void of disturbances or cloud featureswhich are usually antecedent to cyclone development.This unfavorahle pattern for tropical cyclone develop-ment persisted through August. The feature is revealed inthe similarity of the departures from normal charts (700mb.) for July and August. In discussing the circulationfor August, Posey [4] states that the long wave patternchanged very little during the 2 months and that the posi-tive anomaly over the western Atlantic continued in thesame
. After a pause in development, strengthening resumed on 7 July as the outflow became more symmetrical. Dolores became a hurricane that day and developed a mostly cloud-filled, ragged-appearing eye, analyzed from satellite images to be 10–20 n mi in diameter by the Air Force Global Weather Center. The hurricane attained its peak strength of 80 kt around 0600 UTC on 9 July, shortly after moving near 125°W. The eye then disappeared and the cyclone gradually weakened while becoming sheared from the
. After a pause in development, strengthening resumed on 7 July as the outflow became more symmetrical. Dolores became a hurricane that day and developed a mostly cloud-filled, ragged-appearing eye, analyzed from satellite images to be 10–20 n mi in diameter by the Air Force Global Weather Center. The hurricane attained its peak strength of 80 kt around 0600 UTC on 9 July, shortly after moving near 125°W. The eye then disappeared and the cyclone gradually weakened while becoming sheared from the
resolution).c. Hurricane Clara, 5-I1 September Clara's origin was unusual. The cloud system withinwhich it developed was a convective band containinggale force winds and was associated with the earlystages of Babe. On 4 September, as this system movedover southeast Georgia, a weak mid-troposphericcirculation formed. By 1200 GMT 5 September, thiscirculation was affecting the surface and a depressionbecame located just north of Charleston,. S. C. Charleston reported a west surface wind and a 24 h
resolution).c. Hurricane Clara, 5-I1 September Clara's origin was unusual. The cloud system withinwhich it developed was a convective band containinggale force winds and was associated with the earlystages of Babe. On 4 September, as this system movedover southeast Georgia, a weak mid-troposphericcirculation formed. By 1200 GMT 5 September, thiscirculation was affecting the surface and a depressionbecame located just north of Charleston,. S. C. Charleston reported a west surface wind and a 24 h
part of the cloud pattern. Finally, at 0000 UTC 31 July, a reconnaissance mission determined the existence of a closed low-level circulation and tropical storm–force wind speeds and Tropical Storm Erin had formed over the southeastern Bahamas. The upper-level low near Florida affected Erin’s movement and development. Associated steering currents accelerated Erin from 2.6 to 7.7 m s −1 and diverted the cyclone around the northeast side of the low. The temporary and fairly subtle change of
part of the cloud pattern. Finally, at 0000 UTC 31 July, a reconnaissance mission determined the existence of a closed low-level circulation and tropical storm–force wind speeds and Tropical Storm Erin had formed over the southeastern Bahamas. The upper-level low near Florida affected Erin’s movement and development. Associated steering currents accelerated Erin from 2.6 to 7.7 m s −1 and diverted the cyclone around the northeast side of the low. The temporary and fairly subtle change of
wave’s “intrinsic” potential for development (e.g., its observed size, cloud and circulation structure, convective nature) when it crosses the west coast of Africa, and 2) the characteristics of the eastern Atlantic atmospheric and oceanic environment that it then encounters. While satellite signatures, surface pressure analyses, and circulation features derived from rawindsonde data provide some clues about tropical waves departing Africa, a reliable quantitative measure of point 1 above remains
wave’s “intrinsic” potential for development (e.g., its observed size, cloud and circulation structure, convective nature) when it crosses the west coast of Africa, and 2) the characteristics of the eastern Atlantic atmospheric and oceanic environment that it then encounters. While satellite signatures, surface pressure analyses, and circulation features derived from rawindsonde data provide some clues about tropical waves departing Africa, a reliable quantitative measure of point 1 above remains
25 November, satellite pictures showedthat a circular convective cloud mass about 100 nmi in diameter had formed near the low center. Theeye was well-defined, implying that a small tropicalsystem had developed within the larger extratropical cyclone. Satellite intensity estimates were at 65 kt--minimal hurricane force--by 1800 GMT of that day, atwhich time the system was centered 600 n mi westsouthwest of the Azores. Given the name Karl, thehurricane strengthened slightly for the next 24 h
25 November, satellite pictures showedthat a circular convective cloud mass about 100 nmi in diameter had formed near the low center. Theeye was well-defined, implying that a small tropicalsystem had developed within the larger extratropical cyclone. Satellite intensity estimates were at 65 kt--minimal hurricane force--by 1800 GMT of that day, atwhich time the system was centered 600 n mi westsouthwest of the Azores. Given the name Karl, thehurricane strengthened slightly for the next 24 h
