Paper on the types and sizes of ice particles in hurricanes published in the Journal of Applied Meteorology and Climatology

Many people have experienced the heavy rain and warm, moist air when hurricanes reach land. But several miles above the ground, where the air is very cold, hurricane clouds are made up of snowflakes and tiny ice particles called ice crystals. The computers that scientists use to forecast where hurricanes will go and how strong …

AOML and HRD researchers at 32nd AMS Conference on Hurricanes and Tropical Meteorology, San Juan, Puerto Rico – 10-14 April 2016

Twenty-three AOML and HRD scientists participated in the recent 32nd AMS Conference on Hurricanes and Tropical Meteorology in San Juan, PR, as authors or co-authors on 36 presentations and 11 posters. Roughly 650 presentations (452 oral presentations in 70 sessions and 196 posters in 2 session) were submitted to the conference. Of the 440 TC-related presentations …

HRD seminar – Amitabh Nag and Ryan Said, Vaisala, Boulder, CO– 8 December 2014

Dr. Nag presented a seminar on "Performance Characteristics of Lightning Locating Systems with Focus on U.S. NLDN". ABSTRACT: Ground-based or satellite-based lightning locating systems are the most common way to geolocate lightning. Depending upon the frequency range of operation, such systems can also report a variety of characteristics associated with lightning events (channel formation processes, …

Highlights from the 2014 hurricane season

The Atlantic hurricane season will officially end November 30, and will be remembered as a relatively quiet season as was predicted.  Still, the season afforded NOAA scientists with opportunities to produce new forecast products, showcase successful modeling advancements, and conduct research to benefit future forecasts. Despite the quiet Atlantic season, NOAA, and especially HRD, had an …

Doppler radar quick-looks from 2:00 AM P-3 flight into Ex-Hurricane Arthur, 5 July 2014

As the remains of Hurricane Arthur transitioned into an extra-tropical cyclone as it approached landfall in Nova Scotia (the Gulf of Maine and Nova Scotia coast are visible as black line in the upper half  of the images) a P-3 mission collected airborne Doppler radar data to use in initializing and evaluating model guidance.  Included …

Doppler radar quick-looks from 1:30 PM G-IV flight into Hurricane Arthur, 4 July 2014

As Hurricane Arthur passed southeast of Long Island, NY (the New England coast is visible as black line in the upper portion of the images) a G-IV mission collected airborne Doppler radar data to use in initializing and evaluating model guidance.  Included here you see images of the horizontal winds within 300 km of Arthur …

Doppler radar quick-looks from 2:00 PM P-3 flight into Hurricane Arthur, 3 July 2014

As Hurricane Arthur approached landfall just south of Wilmington, NC (the North Carolina coast is visible as black line in the upper portion of the images) a NOAA P-3 and a G-IV mission collected airborne Doppler radar data to use in initializing and evaluating model guidance.  Included here you see images of the horizontal winds within …

Doppler radar quick-looks from 2:00 AM P-3 flight into Hurricane Arthur, 3 July 2014

As Hurricane Arthur continued to intensify just east of Savannah, GA (the South Carolina coast is visible as black line in the upper left of the images) a NOAA P-3 mission collected airborne Doppler radar data to use in initializing and evaluating model guidance.  Included here you see images of the horizontal winds within 300 km …

Doppler radar quick-looks from 2:00 PM P-3 flight into Tropical Storm Arthur, 2 July 2014

As Tropical Storm Arthur continued to intensify just east of Jacksonville, Florida (the Florida coast is visible as black line in the left of the images) a NOAA P-3 mission collected airborne Doppler radar data to use in initializing and evaluating model guidance.  Included here you see images of the horizontal winds within 300 km of …