Title: Meteorological history of Hurricane Irma
Content:  intensification of the storm. Sustained winds peaked at 180 mph (285 km/h) near 18:00 UTC on September 5 – although it was operationally assessed at 185 mph (295 km/h). Early on September 6, the storm reached its minimum barometric pressure of 914 mbar just before 06:00 UTC, an estimate based on a dropsonde surface pressure observation and measurements from Barbuda and Saint Barthélemy. This was the lowest barometric pressure in the Atlantic since Dean in 2007. Irma made landfall along the northern coast of Barbuda around 05:45 UTC on September 6, at peak intensity; Irma maintained its peak until 12:00 UTC on September 6. After crossing the island of Barbuda, the hurricane, which maintained its 
Title: Hurricane Irma
Content:  on September 6, Irma made landfall along the northern coast of Barbuda at peak intensity, with the storm's central minimum pressure having bottomed out at 914 mbar – this was the lowest in the Atlantic since Dean in 2007; the storm also made landfall with maximum sustained winds of 180 mph (285 km/h). Irma continued to maintain its peak intensity until 12:00 UTC on September 6 and made additional successive landfalls on that same day, at 11:15 UTC on Sint Maarten, and at 16:30 UTC on Virgin Gorda, in the British Virgin Islands, though the storm's central pressure had risen slightly 
Title: Hurricane Wilma
Content:  At 18:01 UTC on October 19, a Hurricane Hunters dropsonde measured a barometric pressure of 884 mbar in the eye of Wilma, along with sustained winds of 23 mph (46 km/h); the wind value suggested that the central pressure was slightly lower, estimated at 882 mbar. This is the lowest central pressure on record for any Atlantic hurricane, breaking the previous record of 888 mbar set by Hurricane Gilbert in 1988. Wilma's intensification rate broke all records in the basin, with a 24&ndash;hour pressure drop of 97 mbar; this also broke the record set by Gilbert. At the hurricane's peak intensity, the Hurricane Hunters estimated 
Title: Meteorological history of Hurricane Irma
Content:  At 05:00 UTC, early on September 8, the eye of Irma made landfall on the island of Little Inagua in the Bahamas, with winds of 155 mph (250 km/h) and a central pressure of 924 mbar. The hurricane then began tracking more to the west due to the intensification of a subtropical ridge to its north. Once the eyewall replacement cycle was completed, Irma began to re-intensify, and it re-attained Category 5 intensity at 18:00 UTC that day east of Cuba, as deep convection became more pronounced and organized. The hurricane then made landfall in Cayo Romano, Cuba, at 03:00 UTC on September 9, at Category 5 intensity, with winds of 165 mph (270 km/h) and a central pressure identical to its previous landfall. 
Title: Hurricane Irma
Content:  Islands on August 30. Favorable conditions allowed Irma to rapidly intensify into a Category 3 hurricane on the Saffir–Simpson wind scale by late on August 31. The storm's intensity fluctuated between Categories 2 and 3 for the next several days, due to a series of eyewall replacement cycles. On September 4, Irma resumed intensifying, becoming a Category 5 hurricane by early on the next day. Early on September 6, Irma peaked with 1-minute sustained winds of 180 mph (285 km/h) and a minimum pressure of 914 hPa. Irma was the second-most intense tropical cyclone worldwide in 2017 in terms of barometric pressure, and 
Title: Hurricane Irma
Content:  Irma set multiple records for intensity, especially at easterly longitudes, time spent at such an intensity, and its intensity at landfall. When Irma reached Category 5 intensity with winds of 175 mph (280 km/h) at 11:45 UTC on September 5 at 57.7°W, it became the easternmost Atlantic hurricane of this strength on record, surpassing Hurricane David of 1979, later beaten by Hurricane Lorenzo 2 years later. By 00:15 UTC on September 6, Irma reached peak intensity with 155 kn (155 kn) winds and a minimum pressure of 914 mbar. This ties it with Hurricane Mitch of 1998 and Hurricane Rita of 2005 as the sixth-strongest Atlantic hurricane by wind speed. Only five other Atlantic hurricanes 
Title: Typhoon Irma (1981)
Content:  mbar was anticipated by the JTWC. At 1800 UTC on November 21, the JMA raised the intensity of the typhoon to 175 km/h while the JTWC reported that Irma reached winds of 200 km/h, equivalent to a Category 3 hurricane on the United States-based Saffir-Simpson Hurricane Wind Scale (SSHWS). Midday on November 22, a Hurricane Hunter airplane reported a pressure of 905 mbar. Based on this the JTWC upgraded Irma into a super typhoon. Meanwhile, data from both the JTWC and JMA suggested that Irma reached its peak intensity, with the former reporting winds of 250 km/h and the latter reporting winds of 200 km/h. On that day, the Philippine Atmospheric, Geophysical 
Title: Hurricane Bob (1979)
Content:  Mexico since Hurricane Debra in 1959. Though the hurricane's maximum sustained winds would hold steady at 75 mph for approximately the ensuing twelve hours, the storm's barometric pressure would fluctuate before reaching a minimum of 981 mbar (hPa; 28.98 inHg) at 1200 UTC that day; this would be Bob's lowest documented barometric pressure. At around the same time, the hurricane made landfall west of Grand Isle, Louisiana. After moving inland, Bob quickly weakened due to land interaction, and was a mere tropical depression by July 12. However, the resulting depression would maintain its intensity for the next several days. On July 13, the low-pressure area drifted into southern Ohio and afterwards curved eastward. On July 16, Bob's remnants moved into the western Atlantic, where they were subsequently absorbed by another low-pressure area.
Title: 2005 Atlantic hurricane season
Content:  lowest barometric pressure in an Atlantic hurricane; at 12:00 UTC on October 19, the Hurricane Hunters recorded a pressure of 882 mbar in the center of the tiny, well-defined eye of Wilma. Wilma weakened to Category 4 intensity by the time it made landfall on Cozumel on October 21. It later crossed the northeastern Yucatán Peninsula and emerged into the Gulf of Mexico, turning northeast. On October 24, Wilma made landfall in southwestern Florida at Cape Romano with winds of 120 mph (190 km/h). The hurricane quickly crossed the state and continued across the western Atlantic Ocean. Wilma transitioned into an extratropical cyclone on October 26, which was absorbed by a larger extratropical 
Title: Cyclone Mahina
Content:  Contemporary reports vary considerably in the reported lowest barometric pressures. The pressure recorded on the schooner Olive reasonably consistently show her lowest pressure recorded: 29.60 inHg to 29.10 inHg or between 29.00 inHg and 29.10 inHg. In a further variant, "during the lull in the hurricane, the barometer on the Olive recorded" 29.70 inHg to 29.10 inHg. Most sources record the schooner Crest of the Wave observation as 27 inHg. More modern reports of an 18 inHg observation on a vessel in the eye of Mahina are unrealistic (the most intense tropical cyclone, Typhoon Tip, had a central pressure 260 hPa higher). One author accepted the 

Question: what was the lowest barometric pressure for hurricane irma?
Answer: 914 mbar (hPa).