Second-latest snowfall on record at Rockford, Ilinois

May 16th, 2014 |
GOES-13 6.5 µm water vapor channel images (click to play animation)

GOES-13 6.5 µm water vapor channel images (click to play animation)

According to the NWS Chicago, Rockford Illinois had their second-latest snowfall on record during the morning of 16 May 2014. AWIPS images of 4-km resolution GOES-13 6.5 µm water vapor channel data (above; click image to play animation) showed the distinct signature of the center of the upper-level low that moved southeastward across Iowa and Illinois during the 15-16 May period.

The relatively dry “eye-like” signature of the center of the upper-level low also showed up well on 1-km resolution Terra and Aqua MODIS 6.7 µm water vapor channel imagery (below).

Terra and Aqua MODIS 6.7 µm water vapor channel images

Terra and Aqua MODIS 6.7 µm water vapor channel images

Widespread convective features could be seen beneath the upper-level low on 375-meter resolution (projected onto a 1-km AWIPS grid) Suomi NPP VIIRS 0.64 µm visible channel images (below).

Suomi NPP VIIRS 0.64 µm visible channel images

Suomi NPP VIIRS 0.64 µm visible channel images