MARYLAND GEOLOGICAL SURVEY 



205 



the position of forests north and south of the station, and the inclina- 

 tion of the land surface upward towards the northwest may influence 

 the prevailing winds is not known. The direction of the wind from 

 October to ]\larch is generally northwest; that the prevailing winds are 

 southeast during April, May, and June may be a local phenomenon, due 

 to the rapid heating of the soil in the interior, and the inflow of cooler 

 air from the surface of the Bay. The winds then shift to southwest. 

 There are no records of wind velocities, but the observer has frequently 

 mentioned the dates of severe wind storms and high tides, such as 

 occurred, for instance, on October 13, 1893; February 6, 1896; extremely 

 high tides October 22 to 28, 1897; storms October 18, 1898; September 

 14, 1904, etc. 



On the average there will be 50 thunderstorms each year at Solomons ; 

 the largest number is recorded in July and June; while thunderstorms 

 are uncommon in winter they have occurred in every month of the year. 



TABLE XVL 

 Prevailing Winds at Solomons, Md. 



Year 







1892.. 



1893.. 



1.S<I4.. 



189.5. . 



1890. 



1897. 



NW 



NW 

 NW* 



sw 



N 



NE 

 NW 

 NW 

 NW 

 SW 



NW I NW 



1898 NW NW" 



18Jt9. 

 1900. 

 1!K)1. 

 1902. 

 1903. 

 1904. 

 190.5. 



SW 

 NW 

 NW 



NW 

 NW 



NW 

 NW 



NW ! NW 

 NW NW 

 NW NVT 



Means Inw iNW 





NW 



SE 

 NW 

 NW 

 NW 



SE 



SE 

 NW 

 NW 



SW* 

 NW 



NE 

 NW 



SW' 



p. 



NW 



NW" 



SE 

 SE 

 SE 

 SE 

 SE 



NW 

 SE 



NW" 

 SE 



NW 



NW 

 SE 



SW 



SE 



3 



SW 

 SW 

 SW 

 NW 

 SW 

 SE 

 E 



SE 

 SW 

 SW 

 SW" 

 SW 

 SW" 

 NW 



bo 

 3 

 < 



SE 

 SE 

 SE 

 SE 

 SW 

 SE 

 SW 

 NE 

 E 



SW 

 SW 

 SE 

 SW 

 SW 



SW 





O 



O 



SE 

 SE 

 SE 

 SE 

 SE 

 SE 

 NE 

 SE 

 E 

 SW 



s 



SB 

 SW 



SE 



SW*i SE 



> 



c 



n 



NW 



SE 

 NW 

 NW 

 NW* 



NE 



NW 



E 



NE 

 NW 

 NW" 

 NW" j 

 NW" I 

 NW I 



NW , N 



NW ! SW 



NW ' NW 



N ,NW 



SW* NW 



NW NW 



NW SW 



NAV NW 



SW NW 



i 

 NW" NW 



NW NW 



NW NW 



NW NW 



NW NW 



NW NW NW 



S3 



3 

 O 



a 

 < 



NW" 



SB 

 NW* 

 NW* 



SW 



SE 

 NW 

 NW 



SW* 



NW 



NW 



NW" 



NW 



NW 



NW 



* Other directions also. 



