STEPS OPERATIONS JOURNAL

    Date: June 21, 2000
    Operations Director: Morris Weisman


WEATHER FORECAST:

    Forecasters: Morris Weisman (NCAR/MMM)

Today will be partly cloudy and dry, with a slight chance of late afternoon sprinkles.

Low-level moisture is forecast to return overnight, with significant instability expected to set up over the STEPS region by Thursday afternoon. A weak upper-level disturbance will also increase the triggering potential. Shear values will be marginal for supercellular activity, but severe convection cannot be ruled out.

For Friday, conditions continue to look favorable for significant convection.

FORECAST MATRIX

VARIABLE Day 1: 1-4 pm Day 1: 4-9 pm Day 2 Day 3
Convective
Potential
0.51 22
Storm Type 21 21
Triggering 01 1.52
Intuition -10 11
Total 1.53 6.56


EQUIPMENT STATUS:

SYSTEM STATUS
Ops Center Operational.
CHILL Operational.
S-Pol Operational.
LMA Operational.
MGLASS Operational.
T-28 Operational.
Storm ballooning Operational.
Mobile mesonet Operational, but now based out of Norman OK.
Storm chase van Operational.
YRFS Operational.
NWS Operational.


EXPECTED OPERATIONS FOR 0621:

STEPS operations were called down for today (Wednesday). A weather-only meeting was held this morning. The results of that meeting were sent to the STEPS list-serve and are posted here. Weather briefings will be held at 9:00 am and 10:00 am as usual on Thursday morning in anticipation of operations Thursday afternoon.


DEBRIEFING OF OPERATIONS FOR 0621:

Down day, no operations.