02/12/2012 @ KCLE
17:28 UTC -
WX Scenario:
Short wave passage through Great Lakes leads to Lake Effect band development
Discussion:
The NIRSS ILW and icing hazard product detects pockets of moderate severity IFI over KCLE associated with the weak winter convection in the Lake Effect bands around the time of the null PIREP. The polarized IHL sees physically-based SLW= 'yes icing' banded features oriented with the northwesterly flow in the radar domain. The main area of IHL=SLW='yes icing' is evident in the lowest several tilt angles, which is consistent with the relatively shallow nature of the weak Lake Effect convection. The non-polarized SLW algorithm warns on a large percent of the radar volume in this case. Temperature profile is subfreezing through the whole case.
PIREP: '/OV,CLE135005 /TM 1721 /FL040 /TP E145 /SK OVC038?TOP055/ SKC /TA M14 /IC NEG'
Note: Although a Null PIREP, IHL and NIRSS show other wise, warranting this case for consideration as a moderate or greater case during statistical analysis.
IHL 3.0 and 0.5 degree plots |
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NIRSS |
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NEXRAD and Meteogram |
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No PING data for this date and time.
The preliminary mixed phase category based on Earle Williams 35th Radar Conference paper shows a band of icing conditions to the SW of the radar. The region was not identified by the SLW. The FRZDRZ shows some icing-yes identification in the same region, but generally at higher altitudes (farther ranges).
