Find results with:

Add another field

Search by date

to

Searching collections:

Electronic Documents of Illinois

Add or remove collections

Home Page 1

Reference URL

To link to the entire object, paste this link in email, IM or document

To embed the entire object, paste this HTML in website

To link to this page, paste this link in email, IM or document

To embed this page, paste this HTML in website

El Nino 1997-1998 in the Midwest

you wish to report:

Your comment:

Your Name:

Submit

Cancel

...

Back to top

Powered by CONTENTdm®

Title	El Nino 1997-1998 in the Midwest
Subject	Natural resources and the environment: Water resources
Description	An anomalously warm El Nio event developed in the eastern tropical Pacific Ocean during May-August 1997. El Nio events have become recognized as capable of having major effects on atmospheric circulation patterns over North America and elsewhere, leading to predictable outcomes for future seasonal weather conditions. The source of the nation's official long-range predictions, the National Oceanic and Atmospheric Administration (NOAA) Climate Prediction Center (CPC), began issuing forecasts in May 1997 about the event's development and growth to near record proportions. The emerging El Nio was expected to match or exceed the El Nio of 1982-1983, the strongest of this century. Predictions of the future weather conditions expected over the nation, as a result of El Nio's influence on the atmosphere, also were issued by CPC beginning in June 1997. Basically, these and subsequent predictions called for a fall, winter, and early spring in the Midwest that would have above normal temperatures and below normal precipitation. The predictions also called for storms and precipitation to increase in other parts of the nation, particularly in the South and West Coast areas. Media and wide public interest in the evolving record event brought inquiries to the Midwestern Climate Center (MCC) during June 1997. At that time, MCC leadership launched special studies and efforts related to the El Nio event, which included: <OL> <LI>a climatological reanalysis of past El Nio events and the associated weather conditions in the Midwest, <LI>the issuance of outlooks based on these studies, and <LI>the collection and analysis of data on the impacts caused by the El Nio-generated weather conditions in the Midwest. </LI></OL> This decision was in keeping with past MCC research policy that has focused on assessing extreme Midwestern weather conditions like the 1988 drought (Changnon, 1991a and b), the 1993 flood (Kunkel, 1996; Changnon, 1996), and the 1995 heat wave (Kunkel et al., 1996; Changnon et al., 1996). These studies also focused on identifying and quantifying the impacts of these extreme events. The findings of such activities help the MCC respond rapidly and accurately to numerous regional inquiries for data and information about such extreme events. They also help the MCC prepare for effectively addressing similar events in the future. During the El Nio event, beginning in June 1997 and ending in May 1998, the MCC scientists issued several climate outlooks about future Midwestern conditions. These were basically probabilistic-based statements and focused on the winter of 1997-1998, spring 1998, and summer 1998 outcomes. During the El Nio event, the MCC staff collected and recorded all the relevant weather data for the Midwest. Data defining the impacts of El Nio-generated weather events were collected from August 1997 through August 1998. This report presents information about MCC activities related to El Nio in 1997-1998. It includes three sections: the predictive outlooks issued, a climatic assessment of monthly and seasonal weather conditions during the event, and a description of societal and economic impacts caused in the Midwest. Recommendations are offered in the section 'Conclusions and Recommendations' for addressing future El Nio events and the handling of long-range predictions.
Publisher	Illinois State Water Survey
Date	9 24 2004
Type	application/pdf
Identifier	http://www.ediillinois.org/ppa/meta/html/00/00/00/00/08/93.html
Language	EN-English
Coverage	Illinois. Illinois State Water Survey

Title	Page 1
Transcript	Illinois State Water Survey A Division of the Illinois Department of Natural Resources 2000 Data/Case Study 2000-01 El Niño 1997-1998 in the Midwest a by Stanley A. Changnon, Steven D. Hilberg, and Kenneth E. Kunkel Atmospheric Environment Section

	All
	Pages Enter page numbers or page ranges separated by commas. For example: 1,3,5-12

Find results with:

Searching collections:

Home Page 1

El Nino 1997-1998 in the Midwest

Page 1

Object Description

Description

El Nino 1997-1998 in the Midwest