Issued our second Severe Thunderstorm Warning for Persidio County.  Storm is showing strongest Cloud Top Cooling rates observed today around -37C/15 min.  This cell is over northern Mexico way out towards the edge of the KMAF NexRad coverage…with 40 dBZ echo at 35 thousand feet.  We will see how this one pans out as it get closer in on the radar coverage as it moves towards the Davis Mts. Here is the corresponding CI imagery…

Update…KMAF Echo Top shows storm west of the Rio Grande has increased to 54 kft at 2220z. This gave around 30 minute lead time before increase.

Update…storm over Mexico northwest of Candelaria intensified to over 64 dBZ at 2311z. The strong CTC signature gave a lead time of a little over an hour for this intense storm.

Tim/JeffG