Hurricane Nicholas

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Hurricane Nicholas
Category 1 hurricane (SSHWS/NWS)
Nicholas 2021-09-14 0404Z.png
Hurricane Nicholas at peak intensity just before landfall in Texas early on September 14
FormedSeptember 12, 2021
DissipatedSeptember 20, 2021
(Post-tropical after September 15)
Highest winds1-minute sustained: 75 mph (120 km/h)
Lowest pressure988 mbar (hPa); 29.18 inHg
Fatalities4 total
Damage$1.1 billion (2021 USD)
Areas affectedYucatán Peninsula, Tamaulipas, Gulf Coast of the United States
Part of the 2021 Atlantic hurricane season

Hurricane Nicholas was a slow and erratic Category 1 hurricane that made landfall in the U.S. state of Texas in mid-September 2021. The fourteenth named storm, and sixth hurricane of the 2021 Atlantic hurricane season, Nicholas originated from a tropical wave that emerged off the west coast of Africa on August 28. The system developed into a tropical storm on September 12, with the National Hurricane Center (NHC) assigning the system the name Nicholas. Nicholas gradually intensified initially, due to adverse effects of strong wind shear. However, late on September 13, Nicholas began intensifying at a faster rate, and at 03:00 UTC on September 14, Nicholas intensified into a Category 1 hurricane, with maximum sustained winds of 75 mph (120 km/h) and a minimum central pressure of 988 mbar (29.2 inHg). At 5:30 UTC on the same day, Nicholas made landfall in Texas at peak intensity. Afterward, the system gradually weakened, weakening into a tropical storm several hours later, and weakening further into a tropical depression on the next day. The system proceeded to drift slowly over Louisiana. On September 15, Nicholas degenerated into a remnant low, before being absorbed into another extratropical system on September 20.

The storm brought heavy rainfall and storm surge to parts of Texas and Louisiana. Some of the affected areas were still recovering from the effects of Hurricane Ida, which impacted the Gulf Coast of the United States a few weeks prior. Hurricane Nicholas killed a total of four people. Damage was $1 billion.[1]

Meteorological history

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  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
Storm type
▲ Extratropical cyclone / Remnant low / Tropical disturbance / Monsoon depression

On August 28, a tropical wave moved off the west coast of Africa.[1] At 06:00 UTC on September 9, the National Hurricane Center (NHC) began monitoring the northern portion the tropical wave over the western Caribbean Sea for potential development, as it moved across northern Central America and the Yucatán Peninsula toward the Bay of Campeche.[2] By the next day, the wave was interacting with a surface trough over the southern Gulf of Mexico, producing widespread but disorganized showers and thunderstorms across the region.[3] Showers and thunderstorms associated with this system increased and become better organized on September 12, and its top sustained winds reached 40 mph (65 km/h) (tropical storm-force), as confirmed by an Air Force hurricane-hunter flight that morning.[4] As a result, advisories were initiated at 15:00 UTC on Tropical Storm Nicholas.[5]

After forming, the storm was found to be not very organized, as it lacked convective banding features. The center was also not well defined.[6] After satellite imagery from radar and aircraft, it was found that the center had re-formed 150 nautical miles more north than expected and the storm had gained speed.[7] The storm entered the southern part of a large area of deep convection, as signs of an eyewall structure forming were beginning to become prominent.[8] The eyewall structure then dissipated and a new center began forming north-northeast of the previous.[9] The storm then underwent a period of rapid intensification, the fifth hurricane of the season to do so, after intensifying by 35 mph (55 km/h) in a 24-hour period.[10] Consequently, at 03:00 UTC on September 14, the system was upgraded to a Category 1 hurricane.[11] Shortly thereafter, at 05:30 UTC, Nicholas made landfall about 10 mi (15 km) west-southwest of Sargent Beach, Texas, with maximum sustained winds of 75 mph (120 km/h).[10][12] It then quickly weakened inland to tropical storm strength, as it moved to near Galveston Bay.[13] Nicholas was downgraded to tropical depression status at 00:00 UTC on September 15,[14] as it moved slowly into southern Louisiana, where residents were still recovering in the aftermath of Hurricane Ida.[15] At the time, the system consisted of a large swirl of low- to mid-level clouds and showers, with a few patches of deep convection well removed from the center, according to the NHC.[16] Early the following day, while situated near Marsh Island, along the Louisiana coast, Nicholas became post-tropical.[17][18] Nicholas's remnant low later moved further inland, stalling over northern Louisiana,[19][20][21] before its low-level circulation center became ill-defined on September 18.[1] The storm's remnants persisted for another few days, before they were absorbed into an extratropical storm to the north on September 20.[1] The system's residual tropical moisture lingered over parts of the southeastern U.S. for several days.[22][23][24]

Preparations

The tropical wave that would become Nicholas shortly before forming on September 12.

When Tropical Storm Nicholas formed, tropical storm warnings were sent out along the coast from Barra El Mezquital and north to Port Aransas, Texas. Additionally, tropical storm watches were called from Port Aransas to High Island, Texas. As Nicholas neared landfall, tropical storm alerts were issued for the entire Texan coast. The first hurricane warning was issued from Port O'Connor to Freeport, Texas at 03:00 UTC, when the storm was upgraded to a Category 1 hurricane.[11]

Rainfall estimate totals were 8 to 16 inches (200 to 410 mm), with some places potentially receiving 15 inches (380 mm). Coastal Louisiana, which was battered by Hurricane Ida just weeks earlier, was estimated to receive 5 to 10 inches (130 to 250 mm). Lake Houston was lowered by one foot (30 cm).[25] Schools in southern Texas were suspended on September 13.[26][27] At least 330 flights originating from William P. Hobby Airport and George Bush Intercontinental Airport were cancelled.[28] In Harris County, COVID-19 testing sites were closed.[29] Late on September 13, ferry service between Galveston and the Bolivar Peninsula were suspended. Service resumed the next day.[30]

Governor of Louisiana, John Bel Edwards, declared a state of emergency and noted that areas affected by Hurricane Ida would possibly feel the effects of the tropical storm.[31] Edwards also requested a federal disaster declaration, which was approved by President Joe Biden on September 14.[29][32] Governor of Texas, Greg Abbott, issued a disaster declaration for 17 counties in southeastern Texas and ordered the State Operations Center to increase its readiness level.[33] The Louisiana National Guard deployed 80 high water vehicles, 23 boats and 15 aircraft across southern Louisiana.[28] On September 13, before the storm hit, singer-songwriter Harry Styles postponed his performance in Houston.[34]

Impact and aftermath

Losses in the United States ranged from $1.1 to $2.2 billion, according to an estimate by Risk Management (RMS). RMS estimated losses to the National Flood Insurance Program to be between $200 million and $500 million. Karen Clark & Co. estimated damage around $950 million.[35]

Texas

Coastal Flooding in from Dickinson Bayou in Texas City, Texas after Nicholas

The storm left at least 503,000 without power in Texas, mostly in the Houston area.[28][29] An estimated 33% of Galveston County residents were without power. Portions of the Strand Historic District in Galveston were left underwater.[30] The Colonial Pipeline shut down two pipelines from Houston to North Carolina due to power outages. This shutdown occurred just two weeks after the same pipelines were shut down due to Hurricane Ida.[36] In Seabrook, officials estimated that 30 homes sustained wind or flood damage. The Pine Gully fishing pier in the Pine Gully Park was destroyed by storm surge. City officials promised to work with the Federal Emergency Management Agency (FEMA）to rebuild the pier.[37]

Rain totals reached 14 inches (360 mm) near Galveston and Houston saw over 6 inches (150 mm).[38] Storm surge in Port O'Connor was reported to be near 4 feet.[29] A gas station had its roof blown off in Matagorda.[29] Several roadways were closed due to flooding and debris, including a section of I-10 and Texas State Highway 225.[39] No injuries or deaths have been reported due to the storm in Texas.[30] Several highways in and near Clear Lake, League City, and Friendswood were inundated, including several lanes of Interstate 45.[40] Tropical Storm Nicholas floods local road. In Pearland, 21% of people in the city were without power.[41]

Louisiana

The storm left at least 120,000 without power in Louisiana.[12] Around 87,000 residents were still without power from Hurricane Ida when Nicholas made landfall.[29] By early morning, heavy rains had reached New Orleans and flood warnings were issued in the New Orleans area.[42]

Elsewhere

The remnants of Nicholas contributed to two reported direct deaths that occurred in Alabama due to freshwater flooding. One was when a 40-year-old man was swept away in floodwaters in Tuscaloosa, and the other in Hazel Green when a 35-year-old man was pulled into a drainage pipe.[1]

In Florida, there were two indirect deaths due to rip currents from the storm's remnants in Panama City Beach where two males were swept out to sea. Additionally, a 60-year-old man was hospitalized in critical condition on 17 September as a result of these rip currents.[1]

See also

References

  1. ^ a b c d e f Latto, Andy S. (March 1, 2022). Tropical Cyclone Report: Hurricane Nicholas (PDF) (Report). Miami, Florida: National Hurricane Center. Retrieved March 1, 2022.
  2. ^ Brown, Daniel (September 9, 2021). Five-Day Graphical Tropical Weather Outlook (Report). Miami, Florida: National Hurricane Center. Retrieved September 12, 2021.
  3. ^ Papin, Philippe (September 10, 2021). Five-Day Graphical Tropical Weather Outlook (Report). Miami, Florida: National Hurricane Center. Retrieved September 12, 2021.
  4. ^ Henson, Bob; Masters, Jeff (September 12, 2021). "Tropical Storm Nicholas to douse Texas coast with torrential rains". New Haven, Connecticut: Yale Climate Connections. Retrieved September 12, 2021.
  5. ^ Brown, Daniel (September 12, 2021). Tropical Storm Nicholas Discussion Number 1 (Report). Miami, Florida: National Hurricane Center. Retrieved September 12, 2021.
  6. ^ Brown, Daniel (September 12, 2021). Tropical Storm Nicholas Discussion Number 3 (Report). Miami, Florida: National Hurricane Center. Retrieved September 12, 2021.
  7. ^ Brown, Daniel (September 12, 2021). Tropical Storm Nicholas Discussion Number 4 (Report). Miami, Florida: National Hurricane Center. Retrieved September 12, 2021.
  8. ^ Brown, Daniel (September 13, 2021). Tropical Storm Nicholas Discussion Number 5 (Report). Miami, Florida: National Hurricane Center. Retrieved September 13, 2021.
  9. ^ Brown, Daniel (September 13, 2021). Tropical Storm Nicholas Discussion Number 6 (Report). Miami, Florida: National Hurricane Center. Retrieved September 13, 2021.
  10. ^ a b Masters, Jeff; Henson, Bob (September 14, 2021). "Nicholas brings debris, storm surge to Texas as Cat 1 hurricane". New Haven, Connecticut: Yale Climate Connections. Retrieved September 15, 2021.
  11. ^ a b Pasch, Richard; Blake, Eric; Papin, Philippe (September 13, 2021). Hurricane Nicholas Advisory Number 8...Corrected (Report). Miami, Florida: National Hurricane Center. Retrieved September 13, 2021.
  12. ^ a b "Hurricane Nicholas Makes Landfall On The Texas Coast". NPR. AP. September 14, 2021. Retrieved September 15, 2021.
  13. ^ Blake, Eric (September 14, 2021). Tropical Storm Nicholas Discussion Number 9 (Report). Miami, Florida: National Hurricane Center. Retrieved September 14, 2021.
  14. ^ Beven, Jack (September 14, 2021). Tropical Depression Nicholas Intermediate Advisory Number 11A (Report). Miami, Florida: National Hurricane Center. Retrieved September 16, 2021.
  15. ^ "Nicholas Crawls Into Louisiana From Texas, Dumping Rain In Areas Struck By Ida". NPR. AP. September 15, 2021. Retrieved September 16, 2021.
  16. ^ Beven, Jack (September 14, 2021). Tropical Depression Nicholas Discussion Number 12 (Report). Miami, Florida: National Hurricane Center. Retrieved September 16, 2021.
  17. ^ Alex Lamers (September 16, 2021). Post-Tropical Cyclone Nicholas Advisory Number 17. www.nhc.noaa.gov (Report). College Park, Maryland: Weather Prediction Center. Retrieved September 22, 2021.
  18. ^ "Nicholas Becomes Post-Tropical Near Marsh Island Along The Central Louisiana Coast". Orlando, Florida: WKMG-TV. September 16, 2021. Retrieved September 16, 2021.
  19. ^ Greg Carbin (September 17, 2021). Post-Tropical Cyclone Nicholas Advisory Number 23. www.nhc.noaa.gov (Report). College Park, Maryland: Weather Prediction Center. Retrieved September 22, 2021.
  20. ^ "WPC Surface Analysis valid for 09/18/2021 at 18 UTC". wpc.ncep.noaa.gov. Weather Prediction Center. September 18, 2021. Retrieved September 22, 2021.{{cite web}}: CS1 maint: url-status (link)
  21. ^ "WPC Surface Analysis valid for 09/18/2021 at 21 UTC". wpc.ncep.noaa.gov. Weather Prediction Center. September 18, 2021. Retrieved September 22, 2021.{{cite web}}: CS1 maint: url-status (link)
  22. ^ "Showers And Storms Will Continue Through Tuesday". Jackson, Tennessee: WBBJ-TV. September 18, 2021. Retrieved September 18, 2021.
  23. ^ Morgan, Leigh (September 18, 2021). "Flooding rain possible for Alabama today". AL.com. Retrieved September 18, 2021.
  24. ^ Cappucci, Matthew (September 22, 2021). "Forecasters eyeing new Atlantic tropical system set to be named 'Sam'". The Washington Post. Retrieved September 22, 2021.
  25. ^ "Flash flood risk grows for coastal Texas and Louisiana as Tropical Storm Nicholas takes aim". CNN. September 13, 2021. Retrieved September 13, 2021.
  26. ^ "LIST: CCISD and area school district closure status". September 12, 2021. Retrieved September 13, 2021.
  27. ^ "Tropical Storm Nicholas 2021: Here's a list of school closures for South Texas". USA Today. September 12, 2021. Retrieved September 13, 2021.
  28. ^ a b c Holcombe, Madeline (September 14, 2021). "Nicholas threatens flooding in Texas and Louisiana after making landfall as a hurricane with 75-mph winds". CNN. Retrieved September 14, 2021.
  29. ^ a b c d e f Shapiro, Emily; Golembo, Max; Griffin, Melissa; Pereira, Ivan (September 14, 2021). "Tropical Storm Nicholas takes aim on hard-hit Louisiana: Latest path". ABC News. Retrieved September 14, 2021.
  30. ^ a b c Ehling, Jeff (September 14, 2021). "Nicholas floods streets in historic Strand District in Galveston". Retrieved September 14, 2021.
  31. ^ "Louisiana declares state of emergency as Tropical Storm Nicholas targets battered region". USA Today. September 12, 2021. Retrieved September 13, 2021.
  32. ^ "Biden approves Louisiana emergency declaration due to tropical storm Nicholas". Reuters. September 14, 2021. Retrieved September 14, 2021.
  33. ^ Alexander, Chloe (September 13, 2021). "Gov. Abbott issues disaster declaration for 17 Texas counties ahead of Tropical Storm Nicholas". Retrieved September 13, 2021.
  34. ^ KTRK (2021-09-13). "Harry Styles concert at Toyota Center postponed due to Hurricane Nicholas". ABC13 Houston. Retrieved 2021-09-24.
  35. ^ Evans, Steve (September 24, 2021). Hurricane Nicholas insured loss estimated up to $2.2bn by RMS. artemis.bm (Report). Retrieved September 26, 2021.
  36. ^ Molinski, Dan (September 14, 2021). "Colonial Re-Shuts Fuel Pipelines, This Time Due to Hurricane Nicholas". Retrieved September 14, 2021.
  37. ^ Ferguson, Colleen (September 15, 2021). "Hurricane Nicholas destroys Seabrook's Pine Gully Fishing Pier". Community Impact. Retrieved September 23, 2021.
  38. ^ Lozano, Juan (September 14, 2021). "Tropical Storm Nicholas slows, dumps rain along Gulf Coast". Retrieved September 14, 2021.
  39. ^ "LIST: High-water locations in Houston area due to Tropical Storm Nicholas". September 15, 2021. Retrieved September 15, 2021.
  40. ^ Magee, Jake (September 14, 2021). "Tropical Storm Nicholas floods local roads". Community Impact. Retrieved September 23, 2021.
  41. ^ Yanez, Andy; Magee, Jake (September 14, 2021). "Hurricane Nicholas destroys Seabrook's Pine Gully Fishing Pier". Community Impact. Retrieved September 23, 2021.
  42. ^ Kollath Wells, Clarie (September 14, 2021). "Parking restrictions lifted in New Orleans as rain from Tropical Storm Nicholas reaches city". nola.com. Retrieved September 14, 2021.

External links

Wikimedia Commons has media related to Hurricane Nicholas.
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