Hurricane Ophelia (2011)
![]() Ophelia as a Category 3 hurricane on October 1 | |
Meteorological history | |
---|---|
Formed | September 20, 2011 |
Extratropical | October 3 |
Dissipated | October 7, 2011 |
Category 4 major hurricane | |
1-minute sustained (SSHWS/NWS) | |
Highest winds | 140 mph (220 km/h) |
Lowest pressure | 940 mbar (hPa); 27.76 inHg |
Overall effects | |
Fatalities | None |
Damage | Minimal |
Areas affected | Leeward Islands, Bermuda, Newfoundland |
IBTrACS | |
Part of the 2011 Atlantic hurricane season |
Hurricane Ophelia was the most intense hurricane of the
Following the development of Ophelia, numerous storm watches and warnings were issued for the northeastern Caribbean Islands. Residents were urged to prepare for strong winds and substantial flooding. As the system made its closest approach, Ophelia produced several inches of rainfall, leading to mudslides and several road rescues. While light rain totals and gusty winds below tropical storm force were recorded on the island of Bermuda, storm surge and dangerous rip currents along the coast caused minimal damage. In Newfoundland, heavy rainfall contributed to floods that destroyed roads and many buildings. Following Ophelia's transition into an extratropical cyclone, residents across Europe were urged to prepare for strong winds in excess of 75 mph (121 km/h) in some locations, as well as rainfall accumulations up to 4 in (100 mm). In northern Ireland, a combination of moisture and significantly cooler weather produced several inches of snow across the region, cutting electricity to hundreds. Overall, there were no deaths reported in association with Ophelia, and damage was minimal.
Meteorological history
![Track of a tropical cyclone, with different colors corresponding to differing intensities. The track begins to the right, moves left and then up, eventually crossing a land mass near the top of the image.](http://upload.wikimedia.org/wikipedia/commons/thumb/7/75/Ophelia_2011_track.png/275px-Ophelia_2011_track.png)
Tropical storm (39–73 mph, 63–118 km/h)
Category 1 (74–95 mph, 119–153 km/h)
Category 2 (96–110 mph, 154–177 km/h)
Category 3 (111–129 mph, 178–208 km/h)
Category 4 (130–156 mph, 209–251 km/h)
Category 5 (≥157 mph, ≥252 km/h)
Unknown
![triangle](http://upload.wikimedia.org/wikipedia/commons/thumb/5/50/ArrowUp.svg/18px-ArrowUp.svg.png)
The formation of Hurricane Ophelia is attributed in part to a low-latitude tropical wave that emerged off the western coast of Africa in mid-September. As the wave tracked westward, it began to interact with the Intertropical Convergence Zone (ITCZ), and was subsequently introduced with a low chance of tropical development in the National Hurricane Center's (NHC) 48-hour Tropical Weather Outlook.[1] Though atmospheric wind shear was only marginally favorable, the cloud pattern organized, and a surface low-pressure area developed in association with the disturbance. Deep shower and thunderstorm activity continued to fire as the disturbance moved in a general westward motion, and it was assessed with a high chance of development by early on September 19.[2] Following satellite trends and data from the Advanced Scatterometer, the disturbance was upgraded to a tropical depression at 1800 UTC the following day, while positioned roughly 1,300 mi (2,100 km) east of the Lesser Antilles, and to a tropical storm six hours later.[3]
![Satellite image of a tropical cyclone in open water. Cloud activity stretches three-fourths the way around the cyclone, and the center is partially exposed.](http://upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Tropical_Storm_Ophelia_Sept_28_2011_1705Z.jpg/220px-Tropical_Storm_Ophelia_Sept_28_2011_1705Z.jpg)
Tropical Storm Ophelia continued to intensify as it moved west-northwest. Curved
Though the low-level center dissipated later that afternoon, a well-defined mid-level center lingered. The National Hurricane Center initially assessed the remnants of Ophelia with a low chance of regeneration as deep convection fired in association with the low,
An unexpected period of
Preparations and impact
![Satellite image of an organized with a ragged eye and some spread out mass of clouds.](http://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Hurricane_Ophelia_Oct_2_2011_1505Z.jpg/220px-Hurricane_Ophelia_Oct_2_2011_1505Z.jpg)
Though the center of Ophelia remained 205 mi (330 km) east of the Lesser Antilles,[11] its outer bands produced heavy rains across the region. In Dominica, more than 4 in (100 mm) of rain fell over parts of the country, triggering flooding along several rivers. Nearly 1,600 people were stranded and many cars were washed away by the flooding, while landslides severed access to several communities.[12] Several businesses and schools were closed in preparation of the storm.[13] As Ophelia made its closest approach to the region, heavy rainfall submerged Canefield Airport, and numerous roads, buildings and farms were damaged, leaving residents trapped. Gusty winds, reaching 37 mph (60 km/h) at times, and scattered thunderstorms affected portions of Guadeloupe.[14]
Following Ophelia's upgrade to hurricane status on September 29, the Bermuda Weather Service (BWS) issued a tropical storm watch for the entirety of the island.[15] Over the following days, the threat of damaging winds gradually decreased as the storm's forecast track took it far enough east of the territory to spare the region of a direct hit. Correspondingly, the BWS discontinued the watch on the evening of October 1.[16] Four flights from the United States to Bermuda were canceled due to stormy conditions. Along the coast, the Department of Parks raised high surf warnings for the entire south shore and temporarily closed Horseshoe Beach. Additionally, a few local events were postponed.[17] Passing roughly 140 mi (230 km) east of Bermuda, the outer bands of Ophelia produced 0.38 in (9.7 mm) of rain and wind gusts up to 35 mph (56 km/h) across the islands.[18]
On October 1,
While Ophelia was still impacting Newfoundland, forecasters in the United Kingdom warned residents that the remnants of the storm would bring unsettled weather to the nation within a few days.[22] In the midst of a record-breaking heat wave, with temperatures reaching an all-time monthly record high of 86 °F (30 °C), the storm was expected to bring much cooler weather across the region. Strong winds and heavy rains were also anticipated, leading to the cancellation of ferry services. Plummeting temperatures in association with the remnants of the storm were expected to produce snowfall across the United Kingdom as well.[23] In County Donegal the first snows of the season fell, leaving hundreds of residents without electricity.[24]
See also
- Hurricane Erin (2001)
- Hurricane Gonzalo
- Hurricane Teddy
- List of Bermuda hurricanes
- List of Category 4 Atlantic hurricanes
- Other storms with the same name
References
- ^ Stacy Stewart (September 17, 2011). "Graphical Tropical Weather Outlook". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved January 18, 2013.
- ^ Stacy Stewart (September 19, 2011). "Graphical Tropical Weather Outlook". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved January 18, 2013.
- ^ a b c d John Cangialosi (December 8, 2011). Hurricane Ophelia Tropical Cyclone Report (PDF). National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved January 18, 2013.
- ^ Daniel Brown (September 21, 2011). "Tropical Storm Ophelia Discussion Number 2". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved January 18, 2013.
- ^ John Cangialosi (September 26, 2011). "Graphical Tropical Weather Outlook". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved January 18, 2013.
- ^ Richard Pasch (September 26, 2011). "Graphical Tropical Weather Outlook". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved January 18, 2013.
- ^ Robbie Berg (September 26, 2011). "Graphical Tropical Weather Outlook". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved January 18, 2013.
- ^ Eric Blake (September 28, 2011). "Tropical Storm Ophelia Discussion Number 26". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved January 18, 2013.
- ^ Lixion Avila (September 29, 2011). "Hurricane Ophelia Discussion Number 29". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved January 18, 2013.
- ^ Stacy Stewart (September 30, 2011). "Hurricane Ophelia Discussion Number 31". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved January 18, 2013.
- ^ John Cangialosi (September 28, 2011). "Tropical Depression Ophelia Public Advisory Number 23". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved October 2, 2011.
- ^ TDN Wire Staff (September 28, 2011). "Flooding and landslides in Dominica during heavy rainfall". The Dominican. Retrieved September 29, 2011.
- ^ Staff Writer (September 29, 2011). "Dominica Schools closed in Ophelia's wake". Caribbean Broadcasting Cooperation. Archived from the original on October 6, 2014. Retrieved January 18, 2013.
- ^ Staff Writer (September 29, 2011). "Encore en jaune pour fortes pluies et orages!" (in French). France-Antilles. Retrieved October 1, 2011.
- ^ Lixion Avila (September 29, 2011). Hurricane Ophelia Public Advisory Number 29. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved January 18, 2013.
- ^ Eric Blake and Michael Brennan (October 1, 2011). Hurricane Ophelia Tropical Cyclone Update. National Hurricane Center (Report). National Hurricane Center. Retrieved October 2, 2011.
- ^ Staff Writer (October 1, 2011). "Flights cancelled, beach closed by Ophelia". The Royal Gazette. Archived from the original on October 3, 2011. Retrieved October 2, 2011.
- ^ "October 1, 2011, Climate Report". Bermuda Weather Service. October 2, 2011. Archived from the original on October 3, 2011. Retrieved October 2, 2011.
- ^ Lixion Avila (October 1, 2011). "Hurricane Ophelia Public Advisory Number 37". National Hurricane Center. National Oceanic and Atmospheric Administration. Retrieved October 2, 2011.
- ^ Staff Writer (October 1, 2011). "Hurricane Ophelia heads to Newfoundland, Nova Scotia". CBC News. Retrieved January 18, 2012.
- ^ Staff Writer (October 4, 2011). "Igor damage wasn't fixed well: mayor". CBC News. Retrieved October 4, 2011.
- ^ Heidi Blake (October 2, 2011). "North braced for Hurricane Ophelia as south basks in record-breaking heat". The Telegraph. Archived from the original on October 3, 2011. Retrieved January 1, 2012.
- ^ Richard James (October 3, 2011). "Britain set for heavy rain and snow as Hurricane Ophelia ends mini heatwave". Metro News United Kingdom. Retrieved October 3, 2011.
- ^ Staff Writer (October 6, 2011). "Almost 1,0000 homes left without electricity as rain, gales and snow hits Donegal". DonegalDaily. Retrieved January 26, 2013.
External links
![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)