PRELIMINARY REPORT ON TORNADOES IN THE UNITED STATES DURING 1942

J. L. BALDWIN
1942 Monthly Weather Review  
significant when compared to the standard error of the difference, 0.0478 inch. These data, which include 933 measurements of 31 1 precipitation days on the Priest River Experimental Forest and 38 measurements of 19 precipitation days on the Bent Creek Experimental Forest, show that the inexpensive Forest Service type rain gage is entirely dependable for all ordinary measurements of rainfall where large capacity or automatic recording is not required. Other factors such as topography and
more » ... pography and obstructions surrounding the instrument exposure may introduce deviations and errors far greater than those caused by the design or low cost of the Forest Service gage. During the emergency caused by the war this smaller gage has other features to recommend it. It contains only a fraction of the amount of brass and iron that is required by the larger gages, and it can be built by any competent tinsmith.
doi:10.1175/1520-0493(1942)070<0268:protit>2.0.co;2 fatcat:64ykir7kkndvlni3rnb5kg467e