Los Angeles Times (LAT) on: El Niño & the California Drought
AT –Article- 16-19 October 2015 (22. October 2015) (Fig. 24 - 25)
deprived of rain - October to December 1939
The winter of 1938/39 in the United States was abnormally wet particularly in the eastern United States and in the Southwest, with the larger part of the country having above–normal conditions. The spring of 1939 was exceptionally dry with only a few States from the Mississippi Valley eastward having somewhat more than normal rainfall. From the Great Plains westward, all States experienced deficient rainfall. The summer was relatively wet eastward of the Great Plains, except in the Northeast, where rainfall was deficient in almost all sections. The fall season was extremely dry over large areas, although amounts of precipitation were a little bit above normal in Utah, Colorado and Arizona. For all the areas eastward of the Rocky Mountains it was the driest fall on record [R.J. Martin, 1939].
With regard to anthropogenic rain making due to military activities in Europe and Asia, and due to the fact that ‘aerosols’ from battle fields, for example in Poland during September 1939, could easily make their way to the USA, it should at least be mentioned here that in California precipitation in September 1939 was 370 % above normal (Alabama, 119%; Arizona, 335%; Nevada 327%; Utah 261%). However, in most States, September 1939 was unusual dry.
A closer look at a few areas, which received above normal rain in the fall of 1939, reveals that it was the result of high precipitation levels in September. Figures given below show the percentage of normal precipitation. It may be noted that the States named by Martin  are normally very dry during the months October –December.
Source of maps South Dakota and Wyoming recorded a mere 1 percent, and North Dakota and Nebraska recorded just 5 percent. Only Arizona exceeded the ‘average mark’ by 136 percent. November 1939 was the driest month in the history of the whole of the USA, the rain average about 30 percent lower than the ‘ dry spring average’, with the driest months May (72 percent) and April (94 percent).
The total precipitation in the 42 States of the USA during the closing months of the year 1939 as listed by the Monthly Weather Review was as follows:
The ‘unusual dry air’ during November 1939 was quickly noticed (NYT, 07 Jan. 1940). The recorded dry months of October to December 1939 coincide perfectly with the excessive rain in central Europe where the battles were being waged.
United States pushed into the cold – January 1940
New York experienced the hottest day on record on October 10, 1939 (NYT, 11 Oct. 1939, p. 26 – Commentary). Ironically, only a few days later the same City, and many other parts of the United States, were shivering under a steadily falling thermometer approaching freezing temperatures (NYT, 18 Oct. 1939), dropping to a record low level for that date. (NYT, 19 Oct. 1939). At the same time, war had started in Europe in earnest, and the North Atlantic took the first torpedoed vessels down to its bottom, while Japan was in combat with Chinese forces. Could the extreme conditions New York experienced in mid October 1939 have been caused by WWII activities? This section will leave it to anyone’s guess as it will focus on the question why the following January 1940 proved to be record cold for the USA which was not expected either.
The first signs of a ‘real’
winter emerged at Christmas time 1939, when except for the Deep South and
California, the United States had snow and extreme cold. (NYT, 26 Dec. 1939).
Winter came earnestly in early January 1940, with a frigid wave that gripped
most of the United States (NYT, 06 Jan. 1940). Icy north-westerly winds swept
over New York with force, on January 06, causing temperatures to drop to an
average of 10 degrees Fahrenheit below normal (NYT, 07 Jan.40). From the
Continental Divide to the Atlantic Coast there were strange occurrences as
compared with normal weather conditions. Frigid waves even touched the northern
parts of Florida. (ditto). Was this due to the unusually dry air in November
1939, as noted by Dr. James Kimball in ‘The New York Times’ on January 7th
(NYT, ditto), which actually continued well into December 1939 (see below)?
That December had not been as dry as November in statistical terms, maybe due to
snow that fell with the Christmas cold, e.g. between St. Louis and Louisville
the snow generally was 6 inches deep.
All Posts since October 2015 on:
Introduction (20. Oct): Has El Niño a role on sub-cold winters in Europe? A continuous comparison
Post 1 (21.Oct): Stefan Brönnimann claims: Extreme winter 1940-1942 due to El Niño! -19-
Post 2 (22.Oct): USA deprived of rain - October to December 1939 -18-
Post Special (24.Oct): Hurricane PATRICIA; 'Strongest ever' storm – End of October 2015 -18a-
Post 3 (19.Nov): El Niño Autumn 1939 vs. 2015 -17-
Post 4 (01.Dec): Jet Stream blocked in late 1939 – By naval war not El Niño –-16-
Post 5 (16.Dec): Siberian freeze arrive in Europe - December 1939 -15-
Post 6 (22.Dec): Merry Christmas and Peace upon Meteorology,……… -14-
Post 7 (30.Dec): Huge Difference – December 1939 & December 2015 – -13-
Post 8 (Special): Northern Europe’s Mild Winters. [Essay, about pages 12) -12-
Post 9 (04.Jan): On….the Met- Office asked: What’s been happening to our weather? -11-
Post 10 (09.Jan): Polish and German climate science on winter 1939/40.a shame! -10-
14 December 2014: How serious is Met-Office to understand a “weather bomb”
April 2013: Met-Off
loose talk on cold March 2013?
North and Baltic Sea should not be ignored! (ocl_9-8)
Tang et al 2013 Environ. Res. Lett. 8