EPIC WEATHER DISCUSSION REPORT
Date(UTC):
2001/09/23 15:29
Author:
Bates
Submitted at(UTC):
20010923:15:39
REVIEW OF PREVIOUS FORECAST
Highly complex weather situation in the EPIC region since the strong easterly wave crossed central america,
spawning Juliette and a number of other vorticity centers and/or a dispersion of the wave. Southwest flow
from Juliette may have pushed ITCZ to the north along 95W so convergence line
is now oriented NW-SE from near HUX offshore. MCC and other storms firing along this line
from se to nw during the day.
GENERAL OVERVIEW
GOES vis this am (Image 1)
shows a nice small eye on Juliette, prompting NHC to upgrade her to hurricane (location at 15Z, 14.8N,
102.8W, 80 kts moving 280 at 8 kts). Shear line noted yesterday along 95W has had mesoscale convective
complex develop along it over night. MCC now located 8-10N, 93-95W. This MCC likely to propagate
north to north-northwest during the day. Additional development may also occur northeast of this complex
as another convective line moving to southwest hits outflow boundary from this MCC. Thus, disturbed
conditions likely to continue in EPIC area for some time. Also watching as next easterly wave, of modest
intensity, starts to cross central america.
DISCUSSION
Distrubed weather to continue in EPIC area. Interesting model runs by Joe
Zehnder on interaction of easterly wave with central america agrees with
behavior of convection as vorticity centers split and moved both strait west and
another to the northwest. I speculated multiple vorticity centers and/or
wave dispersion may have occurred, since we find many apparent wave fronts
propagating convection thru EPIC area. Will be studying this case for a long time.
SUMMARY
Sun - C130 95W flight
Mon - Hard down day
Tues - no flights
Wed - P3 back to HUX, C130 95W equatorial flight
Image 1