Tornadoes are rated on the Enhanced Fujita (EF) Scale based on estimated 3-second wind gusts in miles per hour (mph). An EF0 tornado, the weakest category, has winds from 65 to 85 mph. To assess the impact on small UAS performance, which are typically limited to winds around 20 knots (kt), convert the minimum EF0 wind speed of 65 mph to knots using the approximation 1 kt = 1.15 mph. The converted speed is approximately

(Refer to Figure 12.) Which airport's METAR report indicates surface wind conditions most likely to adversely impact small UAS performance during takeoff, flight, and landing?

Density altitude is

Refer to the provided figure. According to the 24 HR SIG WX PROG LOW LVL chart (VT 06Z Sun Apr 15 2012), the area depicted with extreme turbulence symbols presents the greatest risk to small UAS performance from

A remote pilot-in-command (PIC) is evaluating weather conditions for a proposed small unmanned aircraft (sUA) operation and determines that a stationary front is influencing the area. The front is producing widespread low stratus clouds, light rain, and light winds. What is the primary performance impact on the sUA from this weather scenario?

(Refer to Figure 15.) The TAF for KMEM indicates the likely passage of a front primarily due to

(Refer to the provided figure.) A remote pilot plans a small UAS operation in an area shown on the 24 HR forecast with the symbol for ceiling less than 1,000 feet and/or visibility less than 3 miles. This condition will primarily affect UAS performance by

A remote pilot is operating a small unmanned aircraft system (sUAS) near a thunderstorm and encounters a microburst. This will most likely affect the sUAS performance by causing

Refer to Figure 19, Low-Level Significant Weather (SIGWX) Prognostic Chart. For an sUAS operation planned between 90°W and 80°W along 40°N according to the 12 HR SIG WX PROG valid at 18Z Sat Apr 14 2012, the moderate turbulence indicated on the chart will most significantly affect performance by

Referring to Figure 15, the PROB40 1220/1222 1SM TSRA OVC008CB in the KMEM TAF represents conditions most likely to produce which primary effect on small unmanned aircraft performance?

Refer to the Low-Level Significant Weather (SIGWX) Prognostic Chart. The severe turbulence symbol near 80W and 40N on the 24 HR forecast (VT 06Z Sun Apr 15 2012) represents the greatest risk to small UAS performance from

Referring to the Low-Level Significant Weather (SIGWX) Prognostic Chart in the figure, which condition depicted along 40°N between 90°W and 80°W longitude for the 18Z validity time on April 14, 2012, would most adversely affect the performance of a small unmanned aircraft?

A remote pilot plans a small unmanned aircraft system (sUAS) operation near KMEM within the valid period of the TAF shown in Figure 15. The sUAS performance is most likely to be adversely affected by high density altitude during which KMEM forecast period?

Refer to Figure 12, which presents Aviation Routine Weather Reports (METARs). A remote pilot in command (PIC) is planning a small unmanned aircraft system (sUAS) operation and must assess the impact of wind on aircraft performance. Which location's METAR reports the wind conditions most likely to cause degraded controllability and performance of the sUAS?

A continental polar (cP) air mass is classified as

High density altitude conditions MOST affect small unmanned aircraft performance by

Your small unmanned aircraft (sUA) is flying at 300 feet above ground level (AGL) when it encounters the core of a microburst with a downdraft speed of 6,000 feet per minute (fpm). Assuming no corrective action by the remote pilot and constant vertical velocity, approximately how many seconds will elapse before the sUA impacts the ground?

Refer to the provided figure, which depicts Low-Level Significant Weather (SIGWX) Prognostic Charts. The combination of the 'Ceiling less than 1,000 feet and/or visibility less than 3 miles' symbol and an adjacent moderate or greater turbulence symbol near 90W at 40N on the 12 HR SIG WX PROG chart is most indicative of what weather condition that adversely affects small UAS performance?

(Refer to the provided figure.) The moderate turbulence indicated on the 12 HR SIG WX PROG chart near 80°W would most significantly impact small unmanned aircraft systems (sUAS) performance by

(Refer to Figure 15.) According to the TAF for KMEM, a temporary condition of 1/2 SM fog is forecast between 1212Z and 1214Z. This fog would most significantly impact the performance of a small unmanned aircraft system (sUAS) by

A remote pilot is evaluating potential small UAS operating sites based on the Aviation Routine Weather Reports (METARs) shown in Figure 12. Which location's conditions most strongly suggest proximity to a frontal boundary between air masses, where low visibility due to fog and low overcast ceilings could adversely affect UAS performance and visual line-of-sight operations?

When planning a small UAS operation in the vicinity of an approaching cold front, which weather effect is most likely to adversely impact aircraft control?

A remote pilot in command (PIC) is operating a small unmanned aircraft system (sUAS) in conditions of high atmospheric temperature, low pressure, and a stable atmosphere. These conditions will most likely result in

Refer to the provided figure, a Low-Level Significant Weather Prognostic Chart. A remote PIC is evaluating small UAS performance risks for an operation near 90W, 40N at 18Z Sat Apr 14 2012, where the chart depicts moderate turbulence along with areas of ceilings less than 1,000 feet and/or visibility less than 3 miles. These conditions most likely result from

When operating a small unmanned aircraft near an approaching cold front, what weather effect is most likely to impact aircraft performance?

Referring to the Low-Level Significant Weather (SIGWX) Prognostic Chart in the figure, the notation '120' adjacent to certain wind arrows on the 12 HR forecast panel represents