Paper on how tropical storms do (or don’t) organize thunderstorms around the center to intensify released online in Monthly Weather Review

It has been believed that tropical cyclones are likely to strengthen when strong thunderstorms (called convection) almost completely surround the storm's center. In order to better understand what prevents this convection from surrounding the storm’s center in some storms (but not others), this study analyzes data collected on NOAA aircraft flights in two storms that …

HRD & AOML researchers at 97th American Meteorological Society Annual Meeting, Seattle, WA – 23-27 January 2017

Abstracts and recordings of  the 25 presentations and 6 posters AOML & HRD researchers presented (or were co-authors) at the 97th AMS Annual Meeting are available online from the AMS website: Presentations: Bachir Annane,  B. D. McNoldy, S. M. Leidner, R. N. Hoffman, R. Atlas, and S. J. Majumdar, Impact of Simulated CYGNSS Ocean Surface Winds …

HRD Monthly Science Meeting of November 2016

November’s science meeting consisted of 7 presentations: Shun-Nan Wu (RSMAS), “The signal of future TC intensification in the CloudSat measurements” Jon Zawislak (FIU/CIMAS/HRD), “The Relationship Between Precipitation and Environmental Forcing during Tropical Cyclone Formation” Leon Nguyen (HRD), “Thermodynamic and kinematic influences on precipitation symmetry in sheared tropical cyclones: Bertha and Cristobal (2014)” Brad Klotz (CIMAS/HRD): …

HRD Monthly Science Meeting of June 2016

June's science meeting consisted of 4 presentations: Ghassan Alaka:   "Demo of the Basin-Scale HWRF Web Site" Elena Konopleva (ESRL/PSD):   "Simple flight planning tool based on tkmap" George Halliwell (AOML/PhOD):  "OSSE evaluation of pre-storm ocean profile surveys" Leon Nguyen:  "Observations of intensifying sheared tropical cyclones: Bertha" All the presentations are available on the anonymous …

HRD observation team monthly meeting – 19 May 2016

The purpose of the observation team meetings is to bring together the people who use observations in their research on a regular basis to discuss issues they’re having, provide updates on observations they’re analyzing or collecting, and any other information that may be of interest to the broader group.  These meetings are also an excellent …

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 …

New technologies successfully deployed in recent hurricane flights

During NOAA’s recent reconnaissance and surveillance missions into Hurricane Edouard, aircraft-deployed unmanned aircraft systems (UASs) were successfully deployed for the first time. On September 16, 2014, Sensintel’s Coyote UAS was released into major Hurricane Edouard’s eye using NOAA’s P-3 aircraft operating out of Bermuda as the delivery vehicle. Once deployed, the 7-lb, 5-ft-wingspan Coyote proceeded …

HRD Debrief for missions into Tropical Storm/Hurricane Cristobal – 5 September 2014

HRD researchers discussed the results from the 8 P-3 and 2 G-IV missions into Tropical Storm/Hurricane Cristobal. The agenda for the discussion was: Missions Overview (Reasor) Science Discussions 20140823I1 Tail Doppler radar (TDR) (Aberson) 20140824H1 TDR (Rogers) 20140824N1 TDR (M. Black/Dunion) 20140824I1 TDR (Sellwood) 20140825H1 TDR (Jun Zhang) 20140825N1 TDR (Aksoy) 20140825I1 TDR (Sellwood) 20140826H1 …

Doppler radar quick-looks from 2:00 PM P-3 flight into Hurricane Cristobal, 27 August 2014

As Hurricane Cristobal picked up its northward motion while passing east of Wilmington, NC a NOAA P-3 collected airborne Doppler radar data to use in initializing and evaluating model guidance (section 1) during an Ocean Winds and Rain experiment (section 4).  Included here you see images of the horizontal winds within 300 km of Cristobal sampled from …

Doppler radar quick-looks from 2:00 PM P-3 flight into Hurricane Cristobal, 26 August 2014

As Hurricane Cristobal continued it northward motion east of Cape Canaveral, FL a NOAA P-3 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 Cristobal sampled from the tail Doppler radar on the P-3 aircraft during the evening of …