90 DAVENPORT ACADEMY OF NATURAL SCIEN( 1 5. 



July 5th. A storm from the southwest and northwest passed to east. 

 Time records vary. Hail fell. Tabor — "Hail small, doing little dam- 

 age." Rock Branch — 2 :4o to 2 145 p. M. — "Little; hail did some dam- 

 age to crops south and southwest of here, about three miles." Kiron — 

 "Hail fell southeast and northeast; some damage to crops." These 

 storms, whose beginnings cover time from 2:00 to 9:00 p. m., were 

 accompanied by some wind, as at Albia and in the hail district. 



The freedom from storms of the 6th and 7th was broken on the 8th. 

 The "weather map" of that forenoon shows a "low" area to our north- 

 west, over Dakota and Minnesota. Its influence is seen in the number 

 of reports for that date. Two or three storms apparently occurred. 

 Lenox reports: "8:30 p. M., lightning and thunder in southwest and 

 northeast began simultaneously; clouds approached each other in south- 

 east and then scattered; no rain here, but some eight miles south." 

 Concord — "Several head of cattle and one colt killed by lightning." 

 Monticello — " Considerable sheet-lightning." 



July 9th. Apparently local storms, with considerable lightning. 

 Davenport reports "ice-house struck and burned at Rock Island city, 

 and smoke-stack of wagon factory struck at Moline, between 1 : 00 and 

 2 : 00 A. M." Moravia- — •" Four flashes of lightning approached the earth ; 

 one struck a fence-post, the other three killed ten head of cattle; six of 

 these lay on the wires in one place, the others were twenty rods distant." 



On the 10th but a single report is made. The weather map of this 

 forenoon shows an area of "low" in Dakota. This worked to the south- 

 east. On the nth, the well-defined "low" area was in the northwest 

 corner of Iowa. A number of night storms are reported on the nth. 

 These all came from the west quarter, and were accompanied by con- 

 siderable wind in some cases. The rain beginnings were all between 

 6:00 p. M. and midnight. Reports say: Auburn — "First really severe 

 thunder-storm of season; storms mostly at night." Algona — "Very 

 heavy thunder and lightning." Cresco — "Distant lightning all around 

 horizon after 9:00 p. m. ; bulk of storm seemed to be in the north; 

 temperature at 9:00 p. u., 82", and at 2:00 p. m., 97 , being the hot- 

 test of the year." 



July 1 2th. Night storms again from a western quarter. The rain 

 beginnings are mostly between 6:00 and 8:00 p. M. All the reports 

 fall between 2:00 P. m. and midnight. This storm was fairly defined, 

 and comparison of rainfall times shows an apparent east and northeast 

 movement, though there are some discordant times. The "agreements" 

 are: Des Moines, 4: 15 p. m. ; Cedar Rapids, 4:00 p. m. ; Marshall- 



