KMRD Ridgefall — Composite Reflectivity — 230 km range
KMRD
44.61°N 92.08°W
vcp 212 · storm mode
vcp 212 · storm mode
AZ 302° RNG — km
SEL none
17:42Z
Bulletin
17:42Z
Meridian Weather forecasters have upgraded the western half of the coverage area to an enhanced risk through 22:00Z. The line currently running from Alder Bend to Halverson has produced three confirmed hail reports in the past forty minutes, and rotation signatures in cell C-04 have tightened for two consecutive volume scans.
Expect the strongest returns to cross the Verity River corridor between 18:20Z and 19:10Z. Motion is east-northeast at 38 knots, which is quick enough that individual cells will clear any given county in under twenty minutes — but slow enough that the training pattern behind them matters more than any single core.
| Scan | Time | Max dBZ | Echo top | VIL | Cells |
|---|---|---|---|---|---|
| V-2214 | 17:42Z | 68 | 52,000 ft | 61 kg/m² | 6 |
| V-2213 | 17:36Z | 66 | 50,500 ft | 57 kg/m² | 6 |
| V-2212 | 17:30Z | 63 | 48,000 ft | 49 kg/m² | 5 |
| V-2211 | 17:24Z | 61 | 46,200 ft | 44 kg/m² | 5 |
| V-2210 | 17:18Z | 58 | 43,800 ft | 38 kg/m² | 4 |
| V-2209 | 17:12Z | 54 | 41,100 ft | 31 kg/m² | 4 |
Severe thunderstorm warning issued for Halverson and Verity counties until 18:30Z. Quarter-size hail, 60 mph gusts.
Spotter report near Alder Bend: 1.25 in hail, no structural damage observed.
Cell C-04 exhibits a tightening mesocyclone at 8,000 ft. Under continuous review.
KMRD returned to service after a 90-second pedestal calibration. No data loss.
Outflow boundary from the earlier Sable Flats complex now draped across the southern tier.
Meridian operates 14 S-band sites across the northern tier. Composite products refresh every 4–6 minutes.