Erik Nels Rasmussen (born January 27, 1957) is an American

meteorologist A meteorologist is a scientist who studies and works in the field of meteorology aiming to understand or predict Earth's atmospheric phenomena including the weather. Those who study meteorological phenomena are meteorologists in research, while t ...

and leading expert on

mesoscale meteorology Mesoscale meteorology is the study of weather systems smaller than synoptic scale systems but larger than Microscale meteorology, microscale and storm-scale cumulus systems. Horizontal dimensions generally range from around 5 kilometers to several ...

, severe convective storms,

forecasting Forecasting is the process of making predictions based on past and present data. Later these can be compared (resolved) against what happens. For example, a company might estimate their revenue in the next year, then compare it against the actual ...

of storms, and

tornadogenesis Tornadogenesis is the process by which a tornado forms. There are many types of tornadoes and these vary in methods of formation. Despite ongoing scientific study and high-profile research projects such as VORTEX, tornadogenesis is a volatile pro ...

. He was the field coordinator of the first of the

VORTEX projects The Verification of the Origins of Rotation in Tornadoes Experiment (or VORTEX) are field experiments that study tornadoes. VORTEX1 was the first time scientists completely researched the entire evolution of a tornado with an array of instrumentati ...

in 1994-1995 and a lead

principal investigator In many countries, the term principal investigator (PI) refers to the holder of an independent grant and the lead researcher for the grant project, usually in the sciences, such as a laboratory study or a clinical trial. The phrase is also often us ...

for VORTEX2 from 2009-2010 and VORTEX-SE from 2016-2017, as well as involved in other smaller VORTEX offshoots and many field projects.

Biography

Education

Rasmussen was born in

Hutchinson, Kansas Hutchinson is the largest city and county seat in Reno County, Kansas, United States, and located on the Arkansas River. It has been home to salt mines since 1887, thus its nickname of "Salt City", but locals call it "Hutch". As of the 2020 cen ...

to James and Ilse Rasmussen in 1957. His younger brother Neal, a software engineer, is also a storm chaser and is an accomplished videographer and photographer. Rasmussen's undergraduate

meteorology Meteorology is a branch of the atmospheric sciences (which include atmospheric chemistry and physics) with a major focus on weather forecasting. The study of meteorology dates back millennia, though significant progress in meteorology did not ...

study was at the

University of Oklahoma The University of Oklahoma (OU) is a Public university, public research university in Norman, Oklahoma. Founded in 1890, it had existed in Oklahoma Territory near Indian Territory for 17 years before the two Territories became the state of Oklahom ...

(OU) in Norman where he received a B.Sc. in 1980. Here he was introduced to field research under

Howard Bluestein Howard Bruce Bluestein is a research meteorologist known for his mesoscale meteorology, severe weather, and radar research. He is a major participant in the VORTEX projects. A native of the Boston area, Dr. Bluestein received his Ph.D. in 1976 fr ...

, chasing supercells and tornadoes, and learning about thunderstorm structure and processes. He went on to graduate school at

Texas Tech University Texas Tech University (Texas Tech, Tech, or TTU) is a public research university in Lubbock, Texas. Established on , and called Texas Technological College until 1969, it is the main institution of the five-institution Texas Tech University Sys ...

(TTU) in Lubbock where he earned a M.Sc. in

atmospheric sciences Atmospheric science is the study of the Earth's atmosphere and its various inner-working physical processes. Meteorology includes atmospheric chemistry and atmospheric physics with a major focus on weather forecasting. Climatology is the study of ...

in 1982. In grad school he developed a reputation as a particularly adept forecaster and interceptor of severe storms and tornadoes and was nicknamed "The Dryline Kid" in reference to the

dry line A dry line (also called a dew point line, or Marfa front, after Marfa, Texas) is a line across a continent that separates moist air and dry air. One of the most prominent examples of such a separation occurs in central North America, especially T ...

which initiates isolated storms and attendant tornadoes. His thesis was
The Tulia Outbreak Storm: Mesoscale Evolution and Photogrammetric Analysis
'. From 1982-1984, Rasmussen pursued further postgraduate work at the

University of Illinois at Urbana-Champaign The University of Illinois Urbana-Champaign (U of I, Illinois, University of Illinois, or UIUC) is a public land-grant research university in Illinois in the twin cities of Champaign and Urbana. It is the flagship institution of the Univ ...

(UIUC). He worked at W.A.R.N. Inc., Now Weather Inc., WeatherData Inc., and PROFS (which became the

Forecast Systems Laboratory The Forecast Systems Laboratory (FSL) was a meteorological research and development laboratory in the National Oceanic and Atmospheric Administration (NOAA)/Office of Oceanic and Atmospheric Research (OAR). In October 2005, it was merged with f ...

or FSL before that unit was merged into the

Earth System Research Laboratory The Earth System Research Laboratories (ESRL) is an alliance of four NOAA scientific labs, all located in the David Skaggs Research Center on the Department of Commerce campus in Boulder, Colorado. Organized under NOAA’s Office of Oceanic and ...

or ESRL). He finished his Ph.D. at

Colorado State University Colorado State University (Colorado State or CSU) is a public land-grant research university in Fort Collins, Colorado. It is the flagship university of the Colorado State University System. Colorado State University is classified among "R1: ...

(CSU) in Ft. Collins in 1992. At CSU he participated in more field work, including researching

squall line A squall line, or more accurately a quasi-linear convective system (QLCS), is a line of thunderstorms, often forming along or ahead of a cold front. In the early 20th century, the term was used as a synonym for cold front (which often are accompa ...

s in Australia and his dissertation was titled
Observational and Theoretical Study of Squall Line Evolution
'.

Career

Rasmussen became a research meteorologist at the

National Severe Storms Laboratory The National Severe Storms Laboratory (NSSL) is a National Oceanic and Atmospheric Administration (NOAA) weather research laboratory under the Office of Oceanic and Atmospheric Research. It is one of seven NOAA Research Laboratories (RLs). NSSL s ...

(NSSL) and then the

Cooperative Institute for Mesoscale Meteorological Studies The Cooperative Institute for Mesoscale Meteorological Studies is a research organization created in 1978 by a cooperative agreement between the University of Oklahoma (OU) and the National Oceanic and Atmospheric Administration (NOAA). CIMMS pro ...

(CIMMS). After the study of

s his interest returned to

supercell A supercell is a thunderstorm characterized by the presence of a mesocyclone: a deep, persistently rotating updraft. Due to this, these storms are sometimes referred to as rotating thunderstorms. Of the four classifications of thunderstorms (s ...

s from the microphysical aspects of cloud particles to mesoscale environments modulating storm behavior. He was the field commander (FC) o
Project VORTEX
in 1994-1995 where he worked with lead forecaster

Charles A. Doswell III Charles A. Doswell III (born November 5, 1945) is an American meteorologist and prolific severe convective storms researcher. Doswell is a seminal contributor, along with Leslie R. Lemon, to the modern conception of the supercell, which was develo ...

, participated in SUB-VORTEX and VORTEX-99
STEPSIHOP
and served on the steering committee and was a lead principal investigator (PI) fo
VORTEX2
in 2009-2010 as well as project manager fo
VORTEX-SE
in 2016-2017. Since his college days Rasmussen was a major contributor to ''

Storm Track ''Storm Track'' was the first magazine for and about storm chasing. The magazine was in circulation between 1977 and 2002. History and profile ''Storm Track'' was started in 1977 by chasing pioneer David Hoadley following an informal meeting o ...

'' magazine although by the mid-1990s his previously intense interest in storm chasing was waning. For years he did research and computer programming through his company Rasmussen Systems located near

Grand Junction, Colorado Grand Junction is a home rule municipality that is the county seat and the most populous municipality of Mesa County, Colorado, United States. The city population was 65,560 at the 2020 United States Census, making Grand Junction the 17th mos ...

. This work remains supported by the

National Science Foundation The National Science Foundation (NSF) is an independent agency of the United States government that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National I ...

(NSF) and he consults for NSSL and CIMMS, private meteorological companies, and other entities. In 2015 Rasmussen moved back to

Norman Norman or Normans may refer to: Ethnic and cultural identity * The Normans, a people partly descended from Norse Vikings who settled in the territory of Normandy in France in the 10th and 11th centuries ** People or things connected with the Norm ...

, where he continues this aforementioned work and serves as Program Manager for the VORTEX-SE project.

References

* * *

External links

Rasmussen Systems

NSSL awards
* * {{DEFAULTSORT:Rasmussen, Erik N. American meteorologists Storm chasers University of Oklahoma alumni Texas Tech University alumni University of Illinois Urbana-Champaign alumni Colorado State University alumni University of Oklahoma faculty Living people 1957 births National Weather Service people

Biography

Education

Career

See also

References

External links