Summary of Analysis of June 28, 2000 

Flight 1

During this flight (~1400-~1510) the Citation investigated the debris
from a line of 3 or 4 small cells with small anvils that moved off to
the SSE.  They had produced several CG flashes and more IC flashes from
approx.  1215 to the last lightning at ~1325. 

Case 1
A/C first arrives ~1410 then does spiral up from 2 to 7.5 km (1412-1422).
The strongest Ez fields seen during any of this flight were ~4-5 kV/m at
~1412 at low altitudes ~3 km as the Citation climbed in a spiral.
Last LDAR in this cell was seen in the 1321-1324 CAPPI and last CG at
1319-1321. So last lightning approx.  50 to 55 m before A/C arrived.
There had been sporadic lightning since 1210 to 1213. Estimate of total
no. of flashes 20 to 30.

Case 2
A larger cell than Case 1 with more of an anvil blowing off towards SSE.
There seems to be less lightning in this cell than Case 1 but the cell
is ~125 km from PAFB, so CGs may not be plotted (files with CGs for <150 km range
from KSC).  First LDAR 1218:20, then sporadic until ~1310. Very roughly
20-30 LDAR flashes.
A/C moved to this cell ~1428 at 7.5 km but descended to 6 km by 1443. 
E fields were < 1 kV/m, even with reflectivity at A/C position of
20 - 25 dBZ at times (e.g. 1429).
E fields had decayed to weak values about 1 hour after the last lightning.

Flight 2

NOTE: The 2D probe operated intermittently on this flight. FSSP is a better
indicator of when the A/C was in cloud.

Case 1   Decayed anvil debris

The A/C did a spiral ascent from ~1825 t0 1835 below and in the edge of
decaying debris in an anvil in very late stages of decary from cells
just to the SW of PAFB (in the radar void) which had produced lightning
from roughly 1500 to the last activity at roughly 1710. [Last LDAR sources
1703-1706 CAPPI, last CG 1642-1645 CAPPI]
Both the reflectivities and the E fields were very weak by the time
the A/C arrived.

NOTE: The CGs were just to the south of PAFB suggesting that it probably
had a wet radome and some attenuation. Should work with NEXRAD for
any reflectivity work.

Case 2 Decay of anvil debris

At ~1837 the A/C move East to this group of cells which had started
producing lightning ~1715 and continued until the last LDAR flash at 
about 1910. The cells of this moderate complex showed very little
translation, but there was some development of an anvil to the south
at 7 to 10 km. The A/C flew N-S legs back and forth in this small line
through the decaying cores of reflectivity with extensions to both
the south (a little into the anvil) and to the north until ~1955.
E fields in the higher reflectivites were strong.

Case 3  Decay of attached anvil with active core

From about 2000 until end of the flight the A/C made NW-SE passes
through the anvil of a storm which initially was actively producing
lightning. The E fields had started to decay to moderate E by the
end of the passes.