Thunderstorm rainfall amounts during the 195094 period were determined for 51 first-order stations distributed across the United States, and these values were assessed for seasonal and annual variations in both space and time. Thunderstorms produce 48 of the average annual precipitation received in the Mississippi River basin, which embraces 41 of the United States. Hence, the temporal and spatial variations in thunderstorm rainfall are major factors affecting most of the nation's water cycle. However, thunderstorm rainfall is only a small part of the total precipitation on the West Coast, typically less than 10 of the annual total. Thunderstorms maximize in the summer in most areas and produce 72 of the total summer rainfall that occurs east of the Rocky Mountains. Thunderstorm rainfall in the spring exceeds summer values in the southern plains and portions of California with 40 of the annual average storm precipitation, but spring values rank second in most areas of the nation. Thunderstorm rainfall amounts explain at least 50 of the variation found in annual total precipitation across large portions of the nation. Thunderstorm rainfall departures below average in the driest five years were found to closely match those of total precipitation deficiencies at all stations, revealing that the absence of storm rainfall is a major factor in droughts. Similarly, the magnitude of thunderstorm rainfall departures in the five wettest years of 195094 matched the magnitude of the total precipitation departures, revealing that thunderstorms have a sizable influence in producing extremely wet as well as dry years across the nation. The temporal distribution of thunderstorm rainfall during 195094 showed 1055 increases over time in most parts of the nation except the upper Midwest and a small portion of the Southeast. Increases were statistically significant in the northern high plains and intermountain area of the West. Trends of storm days with heavy rainfall were also upward across the entire nation, being sizable on the West Coast, Intermountain West area, and Northeast. The national pattern based on temporal shifts in thunderstorm rainfall is in agreement with that based on shifts in storm frequencies indicating that the temporal increases in storm rainfall were a result of more thunderstorms over time and more storm days with heavy rainfall.
Bulletin of the American Meteorological Society – American Meteorological Society
Published: Sep 3, 2001
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera