Impact of a Diagnostic Pressure Equation Constraint on Tornadic Supercell Thunderstorm Forecasts Initialized Using 3DVAR Radar Data Assimilation
Figure 2
Observed radar reflectivity mosaic (dBZ) at 2 km MSL from KDDC, KICT, KVNX, KAMA, and KTLX Doppler radars valid at (a) 0230, (b) 0250, (c) 0310, and (d) 0330 UTC; simulated radar reflectivity (dBZ), horizontal winds, and vertical vorticity (contours staring at 0.005 s−1 with an interval of 0.005 s−1) at 2 km MSL from NoDP1 valid at (e) 0230, (f) 0250, (g) 0310, and (h) 0330 UTC, and from DP1 valid at (i) 0230, (j) 0250, (k) 0310, and (l) 0330 UTC. The duration 0230–0330 UTC covers the 1 h forecast period. The black dots in (a)–(d) indicate the location of the town of Greensburg. The maximum vertical vorticity is shown for NoDP1 and DP1 experiments with the unit of 10−5 s−1.
