In 1979 the World Meteorological Organization came up with 6 rotating naming lists for the National Hurricane Center to use. These lists are reused every 6 years. The new lists included both male and female names. 1984 saw the 6th rotating naming list introduced for the very first time.
In addition, the 1980's brought more advancements modern computer models came more advanced, and infrared satellites where used this allowed the National Hurricane Center to see developing storms even when the sun went down.
In my 1984 Hurricane Season Post I explained how this was a strange year. It was a La Nina year which allowed more named storms. On the other hand, it was still in the Cooling Phase. The season was above average with 13 named storms, near average in hurricanes, and below average in major hurricanes. The seasons total ACE was 84.50 which was average. Most of the named storms stayed out to sea. However, two hurricanes ended up being destructive those hurricanes names where Diana and Klaus. Today I'm going to be focusing on Diana.
Diana's origins can be traced by a frontal boundary that moved off the east coast. On September the 6th the tail of the cold front separated around the Bahamas, and started to produce convection. The next day satellite data showed a broad area of circulation had developed. The National Hurricane Center determined that the system was poorly organized and did not have a closed circulation. On September 8th Satellite data and shipping reports showed 45 mph winds. The National Hurricane Center determined the low was now closed off and it was named Tropical Storm Diana.
Computer models showed that Diana could pose a threat to the Carolina coastline as a significant hurricane. The National Hurricane Center noted that Diana was expected to become a hurricane. Diana slowly drifted northward due to weak steering currents. Also, Diana started to strengthen some more becoming a hurricane on September the 10th.
On September the 11th Diana's winds increased from 75 mph to 100 mph making Diana a category 2 hurricane. On the 12th Diana went rapid deepening becoming a 135 mph category 4 hurricane with a low pressure reading of 949 millibars. The hurricane remained a category 4 for a several more hours.
A new cold front emerged off the east coast causing Diana to go into a loop. However, this cold front pulled some cooler air into Diana and Diana begin to weaken. Early on the 13th winds decreased to 115 mph making Diana a category 3 hurricane.
On September the 13th Diana made landfall in the Outer Banks of North Carolina. The National Hurricane Center has landfall with winds at 90 mph to 100 mph. This would make Diana a high end category 1 or category 2 at landfall. Weather stations measured winds at 96-100 mph at landfall at the surface which is category 2 strength. On the 14th Diana moved off the North Carolina coastline and went out to sea.
Diana was originally feared to be like other North Carolina Hurricanes decades ago. However, Diana made landfall in a rural area at that time. Therefore, the damage was limited. Also, Diana was weakening when it came ashore sparing North Carolina a major hurricane landfall. On the other hand, Diana still caused problems in the Outer Banks. The Hurricane was reported to have produced a 6-10 feet storm surge, 90 mph winds or greater, and flood rains.
In the Outer Banks damage was estimated to be about $66 million dollars and 3 deaths occurred mostly due to drowning from the storm surge. It was not the most destructive storm, but it was destructive in the area it came ashore in.
Diana was 1 of 2 hurricanes to have impacts in the year 1984, which saw a lot of storms remain out to sea. Due to making landfall in a rural area massive damage was limited to small areas. The name Diana was not retired the following year and was used again in 1990. But in 1990 that Diana caused historic flooding in Mexico and after the 1990 season Diana would be retired.
In 1979 the World Meteorological Organization came up with 6 rotating naming lists for the National Hurricane Center to use. These lists are reused every 6 years. The new lists included both male and female names. 1984 saw the 6th rotating naming list introduced for the very first time.
In addition, the 1980's brought more advancements modern computer models came more advanced, and infrared satellites where used this allowed the National Hurricane Center to see developing storms even when the sun went down.
In my 1984 Hurricane Season Post I explained how this was a strange year. It was a La Nina year which allowed more named storms. On the other hand, it was still in the Cooling Phase. The season was above average with 13 named storms, near average in hurricanes, and below average in major hurricanes. The seasons total ACE was 84.50 which was average. Most of the named storms stayed out to sea. However, two hurricanes ended up being destructive those hurricanes names where Diana and Klaus. Today I'm going to be focusing on Diana.
Diana's origins can be traced by a frontal boundary that moved off the east coast. On September the 6th the tail of the cold front separated around the Bahamas, and started to produce convection. The next day satellite data showed a broad area of circulation had developed. The National Hurricane Center determined that the system was poorly organized and did not have a closed circulation. On September 8th Satellite data and shipping reports showed 45 mph winds. The National Hurricane Center determined the low was now closed off and it was named Tropical Storm Diana.
Computer models showed that Diana could pose a threat to the Carolina coastline as a significant hurricane. The National Hurricane Center noted that Diana was expected to become a hurricane. Diana slowly drifted northward due to weak steering currents. Also, Diana started to strengthen some more becoming a hurricane on September the 10th.
On September the 11th Diana's winds increased from 75 mph to 100 mph making Diana a category 2 hurricane. On the 12th Diana went rapid deepening becoming a 135 mph category 4 hurricane with a low pressure reading of 949 millibars. The hurricane remained a category 4 for a several more hours.
A new cold front emerged off the east coast causing Diana to go into a loop. However, this cold front pulled some cooler air into Diana and Diana begin to weaken. Early on the 13th winds decreased to 115 mph making Diana a category 3 hurricane.
On September the 13th Diana made landfall in the Outer Banks of North Carolina. The National Hurricane Center has landfall with winds at 90 mph to 100 mph. This would make Diana a high end category 1 or category 2 at landfall. Weather stations measured winds at 96-100 mph at landfall at the surface which is category 2 strength. On the 14th Diana moved off the North Carolina coastline and went out to sea.
Diana was originally feared to be like other North Carolina Hurricanes decades ago. However, Diana made landfall in a rural area at that time. Therefore, the damage was limited. Also, Diana was weakening when it came ashore sparing North Carolina a major hurricane landfall. On the other hand, Diana still caused problems in the Outer Banks. The Hurricane was reported to have produced a 6-10 feet storm surge, 90 mph winds or greater, and flood rains.
In the Outer Banks damage was estimated to be about $66 million dollars and 3 deaths occurred mostly due to drowning from the storm surge. It was not the most destructive storm, but it was destructive in the area it came ashore in.
Diana was 1 of 2 hurricanes to have impacts in the year 1984, which saw a lot of storms remain out to sea. Due to making landfall in a rural area massive damage was limited to small areas. The name Diana was not retired the following year and was used again in 1990. But in 1990 that Diana caused historic flooding in Mexico and after the 1990 season Diana would be retired.
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