STARR IOWA THUNDER-STORMS. 87 



sky was visible all the time; ceased at 7 :oo p. m., but still in the north, 

 and highly colored by the setting sun; at 8 :oo p. m., sharp thunder and 

 lightning in the northwest, but the storm did not come until 1 :oo a. 

 m. of the 19th, when it was terrific, but without wind; showers con- 

 tinued until 5:00 a. m." Waterloo — "Two storms; the first was 

 heard at 2 : 10 p. m., the second at 4:15 p. m. The movement was from 

 the north to the southeast; wind quite heavy; storm gathered in the 

 north and extended; very black clouds; very hot before storm; tem- 

 perature changed suddenly before it rained much ; heavy masses of vapor 

 scud across sky very low, going to south." Davenport — "Thunder, 

 5:40-7:45 p. m., northwest to southeast; heavy dust storm; a second 

 and third installment at 11:50?. m., and early in morning." Amana 

 — "Six sheep killed at one time, in South Amana." This storm was 

 accompanied by hail: Bancroft, 5:31-5:32 p. j\i. ; Alt. Vernon, "a 

 few drops;" New Providence, "a little, about the middle of the storm;" 

 Concord, 12:40-12:48 p. m. ; Ft. Dodge, 2:15-2:30?. m., "slight;" 

 Marion, 4:30-4:36 p. m. ; Grinnell, 4:48-4:55 p. m., "slight." The 

 times of rain beginning are : Smithland, 8 :oo a. m. ; Orange City, 

 11:35 A - M - j Bancroft, 12:00 m. ; Concord, 12 :35 p. m. ; Algona, 2 :oo 

 p. m. ; Ft. Dodge, 2 : 30 P. M. ; Monona, 3 : 00 p. m. ; New Providence, 

 3:00 p. m. ; Emmetsburg, 3:00 p. m. ; Brush Creek, 3:00 p. m. ; 

 Garnavillo, 3:30 p. m. ; Cresco, 3:40 p. iu. ; Dysart, 4:20 p. m. ; 

 Monticello, 4:25 p. m. ; Marion, 4:25 p. m. ; Amana, 4:35 p. m. ; Mt. 

 Vernon, 4:35 p. m. ; Homestead, 4:45 p. m. ; Grinnell, 4:45 p. m. ; 

 Muscatine, 5:30 p. m. ; Davenport, 5:52 p. m. ; Clinton, 6:00 p. m. ; 

 Mt. Pleasant, 6:30 p. m. The distance from Orange City to Daven- 

 port is about two hundred and fifty miles; the time taken by the squall 

 to traverse that distance, six hours and twenty minutes; giving a rate of 

 nearly forty miles per hour. The heaviest rainfalls reported are : 

 Brush Creek, 1.10 inches; Garnavillo, 0.70; Dysart, 0.90; Monticello, 

 0.75; Marion, 1.30; Amana, 1.12; Mt. Vernon, 0.80; Homestead, 

 0.72; Muscatine, 0.68. 



On the 19th and 20th, there were a number of reports. The 21st 

 shows a well-defined "high" area over Wyoming, extending east, and 

 giving the clear, stormless weather of the 21st to the 29th, inclusive. 



The storms of the early morning of the 19th ought, perhaps, to be 

 counted with the storm of the 18th. Hawarden, Homestead, and 

 Davenport report a storm from the northwest at midnight, with rain 

 lasting two or three hours. A later storm traveled from Ft. Dodge 

 east and southeast to Grinnell, Amana, and Davenport. The first 



