Which response most closely interprets the following PIREP?

UA/OV OKC 063064/TM 1522/FL080/TP C172/TA-04/WV 245040/TB LGT/RM IN CLR.

What significant sky condition is reported in this METAR observation?

METAR KBNA 1250Z 33018KT 290V360 1/2SM R31/2700FT +SN BLSNFG VV008 00/M03 A2991 RMK RAE42SNB42

On what frequency should you obtain En Route Flight Advisory Service below FL 180?

The Low-Level Significant Weather Prognostic Chart depicts weather conditions

(Refer to figure 9.) The Severe Weather Outlook Chart, which is used primarily for advance planning, provides what information?