SPC Mesoscale Analysis and Convective Parameters - NOAA

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Mesoanalysis Summary •Use all available resources to aid in surface analysis (surface observations, mesonet data, satellite, radar, profilers, etc) •Continuity is extremely critical for mesoanalysis; should be done hourly, if possible •Mesoanalysis is an important part of the severe weather evaluation process
Research Summary •Proximity sounding research has aided <strong>SPC</strong> in better tools to identify areas for severe storm potential •Research has shown low MLLCL heights <strong>and</strong> strong 0-1 km SRH/shear vector are best predictors for stronger tornadoes (all other environmental conditions being equal) • 30-40+ kt 0-6 km shear is favorable for supercells •However, information misleading if initiation/ evolution of convective mode is not accurately forecast
Page 1 and 2: SPC Mesoscale Analysis and Convecti
Page 3 and 4: Why do Surface Mesoanalysis? • Fo
Page 5 and 6: Use Computer and Forecaster Analyse
Page 7 and 8: Observational Sources used in SPC M
Page 9 and 10: Techniques to Help Identify Surface
Page 11 and 12: Mesoanalysis Pressure/Wind Data •
Page 13 and 14: Severe Weather Forecast Tools
Page 15 and 16: SBCAPE
Page 17 and 18: 100 mb MLCAPE
Page 19 and 20: Research Proximity Soundings ** Pro
Page 21 and 22: Edwards/Thompson (SPC) Research Use
Page 23 and 24: Deep Layer Shear Deep layer shear =
Page 25 and 26: Craven/Brooks 0-1km Vector Shear 0-
Page 27 and 28: 0-1 km SRH
Page 29 and 30: Thompson/Edwards MLLCL Heights
Page 31 and 32: Craven/Brooks Findings • MLCAPE a
Page 33 and 34: SIMILAR SOUNDINGS - DIFFERENT CONVE
Page 35 and 36: Supercell Composite Parameter (SCP)
Page 37 and 38: Example of SCP Graphic
Page 39 and 40: STP Equation STP = (MLCAPE/1000 J/k
Page 41: Example of STP

SPC Mesoscale Analysis and Convective Parameters - NOAA

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