His original tweet, which Musk, copied read, "An incredible shelf cloud
moved over the Cape early this afternoon.
Figure 10 shows DOW 1[degrees] (top) and 5[degrees] (bottom) base reflectivity and radial velocity at 2230 UTC, at the time of the Edgewater shelf cloud (Fig.
Figures 6a and 6b show photographs of shelf clouds associated with the strong thunderstorms during IOP9 (Table 4), which at times had severe thunderstorm warnings from the NWS.
Shelf clouds during IOP9 on 20 May 2015: (a) Port Orange at 2210 UTC and (b) Edgewater at 2230 UTC.
The pilot said to "hurry, because a storm front is coming." A broad dark shelf cloud filled the Rantoul skies, bearing down on the airfield.
By this time, the shelf cloud had passed overhead, but no rain was occurring and conditions stayed VFR.
Off the shelf cloud
email services was by far the most common 'first use' of cloud in the public sector--for 46% of respondents.
WORCESTER - About 75 weather enthusiasts got the lowdown on squall lines, shelf clouds
, wall clouds and supercell thunderstorms last week at a National Weather Service Skywarn spotter training class at the National Guard Armory on Skyline Drive.