Da'Vel Johnson

Da'Vel Johnson
  • Master of Science in Meteorology
  • Meteorologist at National Weather Service

About

3
Publications
521
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Introduction
I'm a meteorologist working in the Weather Service hoping to help the public become more aware and better prepared for hazardous weather.
Current institution
National Weather Service
  • Weather Forecast Office
Current position
  • Meteorologist

Publications

Publications (3)
FIG. 2. The 500mb chart for May 20 th , 2017 at 12Z. The isohypses are...
FIG. 3. The Southern Mississippi River Valley radar mosaic for May 20...
FIG. 6. KMOB Radar image for May 20 th , 2017 at 23Z.
FIG. 7. Car partially submerged in a Hibbett Sport parking lot in...
FIG. 8. Surface temperatures and dew points for May 20 th , 2017 at...
A Discussion of the 2017 Record Rainfall Year for WFO Mobile
Conference Paper
Full-text available
  • Feb 2018
In 2017, The annual rainfall total in Mobile was ranked 8 th of 147 recorded years (1871-2018), while Pensacola, Florida was 2 nd of 138 years (1880-2018). In addition to a host of non-tropical locally heavy precipitation producing storm systems, three tropical systems directly and indirectly contributed to these totals (i.e., Tropical Storm Cindy,...
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Providing NWS Forecasters with Mesoscale Domain Options of the WRF-EMS for Enhancing Local Decision Support, Continuity of Operations, and Service Backup
Conference Paper
  • Nov 2015
The use of local mesoscale models has significantly increased during the past decade. The availability of the Weather Research and Forecasting-Environmental Modeling System (WRF-EMS) and its high degree of configurability has brought modeling capabilities to many Weather Forecast Offices (WFOs) within the National Weather Service. The WFO in Melbou...
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Figure 1: Thunderstorm vertical cross section using GR2Analyst. Red...
Figure 2: Map of Central Florida, USA blue markers depict the location...
Figure 3: (left) Thunderstorm located at 28.2368 N, 81.2838 W on June...
Figure 6: Reflectivity of Thunderstorm Cores vs Outflow Boundary Speeds.
Figure 8: Equation for radar reflectivity in dBZ 
HOW OUTFLOW BOUNDARY SPEED RELATES TO THUNDERSTORM CORE RADAR REFLECTIVITY
Data
Full-text available
  • Jul 2013
During the month of June 2013, twenty-six thunderstorm cells were analyzed using Level II base radar data in order to derive the speeds of their outflows. These derived outflow boundary speeds were then related to the storm's maximum core height and average storm core reflectivity. It was found that outflow boundary speed has a positive linear rela...
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