NOTE: The nws-changes mailing list is no longer active. The list archives are made available for historical reasons.
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
300 PM EDT MON JUN 12 2000
TO FAMILY OF SERVICES /FOS/ SUBSCRIBERS...NOAA WEATHER
WIRE SERVICE /NWWS/ AND EMWIN CUSTOMERS...OTHER
NATIONAL WEATHER SERVICE /NWS/ CUSTOMERS...NWS
EMPLOYEES
FROM GREGORY A. MANDT...DIRECTOR...OFFICE OF METEOROLOGY
SUBJECT CANCELLATION OF JUNE 19 2000 PRESS CONFERENCE FOR
EXCESSIVE HEAT OUTLOOK. PRESS INFORMATION IS PROVIDED
BELOW.
THE NATIONAL WEATHER SERVICE HAS CANCELED THE EXCESSIVE HEAT
OUTLOOK PRESS CONFERENCE FOR MONDAY...JUNE 19 2000 AT 100 PM
EASTERN DAYLIGHT TIME.
THE EXCESSIVE HEAT OUTLOOK PRODUCT WAS DEVELOPED BY THE CLIMATE
PREDICTION CENTER FOR USE BY PUBLIC OFFICIALS AND MUNICIPAL
EMERGENCY MANAGERS...WORKING WITH THEIR LOCAL NATIONAL WEATHER
SERVICE OFFICES. IT HAS BEEN ISSUED SINCE JUNE 1 2000. THE GOAL
IS TO OBTAIN EARLY ALERTS FOR IMPENDING EXCESSIVE HEAT EVENTS BY
PROVIDING AS MUCH UP-TO-DATE INFORMATION AS POSSIBLE TO HELP
DECISION MAKERS IMPLEMENT MITIGATION ACTIONS IN A TIMELY FASHION
TO SAVE LIVES.
IN LIEU OF A PRESS CONFERENCE...THE FOLLOWING INFORMATION ISSUED
LAST MONTH IS BEING REISSUED:
...........................
THE EXCESSIVE HEAT OUTLOOKS EMPHASIZE DAILY MEAN HEAT INDEX
TEMPERATURES RATHER THAN DAILY MAXIMUM HEAT INDEX. THE DAILY MEAN
VALUE BETTER REFLECTS THE OVERALL RISKS ASSOCIATED WITH BOTH HIGH
DAILY MAXIMUMS AND HIGH NIGHTTIME MINIMUMS.
BECAUSE HEALTH RISKS VARY ENORMOUSLY FROM AREA TO AREA...
FORECASTS ARE ISSUED FOR THE PROBABILITY OF THE DAILY MEAN HEAT
INDEX EXCEEDING THREE DIFFERENT THRESHOLDS. THE THRESHOLDS
/LISTED BELOW/ WERE BASED ON WHEN CUMULATIVE EXPOSURE WOULD BE
LIKELY TO CAUSE SIGNIFICANT HEALTH RISKS FOR A NUMBER OF THE MOST
VULNERABLE CITIES.
IN ADDITION...BECAUSE VULNERABILITY INCREASES WITH DURATION OF
THE HEAT WAVE...RISKS FOR EXCEEDING THE LOWER THRESHOLDS ARE FOR
DURATIONS LONGER THAN ONE DAY.
MORE SPECIFICALLY...FOR THE 3-7-... 6-10- AND 8-14-DAY OUTLOOK
PERIODS - THE OUTLOOKS PREDICT THE PERCENT CHANCE OF EQUALING OR
EXCEEDING THE FOLLOWING THRESHOLD CRITERIA:
A. DAILY AVERAGE HEAT INDEX EQUAL TO OR GREATER THAN 85F THREE
OR MORE DAYS IN THE FORECAST PERIOD
B. DAILY AVERAGE HEAT INDEX EQUAL TO OR GREATER THAN 90F TWO OR
MORE DAYS IN THE FORECAST PERIOD
C. DAILY AVERAGE HEAT INDEX EQUAL TO OR GREATER THAN 95F ONE OR
MORE DAYS IN THE FORECAST PERIOD
THESE NINE CHARTS WILL BE ISSUED OVER AWIPS...NOAAPORT...AND THE
CLIMATE PREDICTION CENTER INTERNET SITE - WWW.CPC.NCEP.NOAA.GOV -
USE LOWER CASE http://www.cpc.ncep.noaa.gov
THE OFFICIAL NOTIFICATION WITH COMPLETE DETAILS /SERVICE CHANGE
NOTICE 00-43A/ IS ON THE INTERNET AT:
WWW.NWS.NOAA/GOV/OM/NOTIF.HTM /USE LOWER CASE/
http://www.nws.noaa/gov/om/notif.htm
END
nws-changes archives: