[top]
000
NOUS41 KCLE 192048
PNSCLE
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
445 PM EDT TUE AUG 19 2008
TO:FAMILY OF SERVICES /FOS/ SUBSCRIBERS...
NOAA WEATHER WIRE SERVICE /NWWS/ SUBSCRIBERS...
EMERGENCY MANAGERS WEATHER INFORMATION NETWORK /EMWIN/
SUBSCRIBERS...NOAAPORT SUBSCRIBERS
OTHER NATIONAL WEATHER SERVICE /NWS/
CUSTOMERS AND PARTNERS AND NWS EMPLOYEES
FROM: MIKE CAMPBELL
CHIEF...OCWWS OBSERVING SERVICES DIVISION
SUBJECT: AUTOMATED SURFACE OBSERVING SYSTEM WIND SENSOR
REPLACEMENT
THE FOLLOWING CHANGES HAVE NO DIRECT IMPACT ON NOAA WEATHER WIRE
SERVICE SUBSCRIBERS
THE AUTOMATED SURFACE OBSERVING SYSTEM /ASOS/ PRODUCT
IMPROVEMENT PROGRAM HAS DEPLOYED A REPLACEMENT WIND SENSOR.
THE NEW SENSOR WILL REPORT WIND INFORMATION USING THE 3-SECOND
WORLD METEOROLOGICAL ORGANIZATION /WMO/ GUST STANDARD.
THE CURRENT ASOS WIND SENSOR /BELFORT 2000 / USES ROTATING CUPS
TO MEASURE WIND SPEED AND A VANE TO MEASURE WIND DIRECTION. OVER
A TWO-MINUTE PERIOD...ASOS USES 24 FIVE-SECOND AVERAGES TO
DETERMINE THE TWO-MINUTE AVERAGE WIND SPEED AND DIRECTION. EVERY
MINUTE ASOS STORES THE HIGHEST FIVE-SECOND AVERAGE SPEED FOR THE
PAST MINUTE... ALONG WITH ITS DIRECTION... IN THE 12-HOUR ARCHIVE
FOR ADDITIONAL PROCESSING. THIS HIGHEST SPEED VALUE IS USED TO
DETERMINE IF A GUST AND/OR A PEAK WIND REMARK WILL BE REPORTED.
THE NEW ASOS WIND SENSOR /VAISALA 425NWS / IS A SONIC ANEMOMETER.
IT HAS NO MOVING PARTS AND WILL OPERATE BETTER IN WINTER WEATHER
CONDITIONS. AS WITH THE BELFORT SENSOR...OVER A TWO-MINUTE
PERIOD...ASOS USES 24 FIVE-SECOND AVERAGES TO DETERMINE THE
TWO-MINUTE AVERAGE WIND SPEED AND DIRECTION. BUT THE HIGHEST
THREE-SECOND RUNNING AVERAGE SPEED IS STORED FOR GUST AND PEAK
WIND PROCESSING.
WHILE THERE WILL BE LITTLE DIFFERENCE IN TWO-MINUTE AVERAGE WIND
SPEED AND DIRECTION REPORTING...THE CHANGES IN GUST AND PEAK WIND
REPORTING MAY BE SIGNIFICANT. WE CAN EXPECT TO SEE MORE GUSTS
AND PEAK WINDS REPORTED WITH THE NEW SENSOR. THE MASS OF THE
MOVING PARTS IN EXISTING SENSORS LIMITS RESPONSIVENESS. THE NEW
SENSOR WILL BE MORE RESPONSIVE TO SHORT TERM GUSTS.
THE NEW WIND SENSOR DEPLOYED IN NORTHERN OHIO AND NORTHWEST
PENNSYLVANIA FOR THE FOLLOWING SITES AND ON OR ABOUT FOLLOWING DATES:
SITE DATE OF DEPLOYMENT
CLEVELAND BURKE LAKEFRONT AIRPORT /KBKL/ AUGUST 18, 2008
TOLEDO METCALF AIRPORT /KTDZ/ AUGUST 20, 2008
ERIE INTERNATIONAL AIRPORT /KERI/ AUGUST 20, 2008
FURTHER INFORMATION ON IFW IMPLEMENTATION PLANS AND STATUS CAN BE
FOUND ON THE SURFACE OBSERVATION PROGRAM WEB PAGE AT
WWW.NWS.NOAA.GOV/OPS2/SURFACE/INDEX.HTM PLEASE NOTE THE S IN
SURFACE IS IN UPPER CASE.
IF YOU HAVE ANY QUESTIONS ABOUT THIS CHANGE...PLEASE CONTACT ONE OF
THE FOLLOWING INDIVIDUALS AT NWS HEADQUARTERS:
DAVID MANNARANO
ASOS IMPLEMENTATION MANAGER
PHONE: 301-713-2093 X103
E-MAIL: DAVID.MANNARANO@NOAA.GOV
OR
RICHARD AHLBERG
ASOS PLANNED PRODUCT IMPROVEMENT PROGRAM MANAGER
PHONE: 301-713-1975 X160
E-MAIL: RICHARD.AHLBERG@NOAA.GOV.
LOCAL CONTACT
BRIAN MITCHELL
OBSERVING PROGRAM LEADER
NWS CLEVELAND OHIO
PHONE: 216-265-2370 X436
E-MAIL: BRIAN.MITCHELL@NOAA.GOV
RELATED NWS TECHNICAL IMPLEMENTATION NOTICES ARE AVAILABLE ON THE
INTERNET AT /USE LOWER CASE/:
HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM
END
$$
THOMPSON
[top]
000
NWUS51 KCLE 190345
LSRCLE
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
1145 PM EDT MON AUG 18 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1130 PM HAIL 3 N CAMBRIDGE SPRINGS 41.85N 80.06W
08/18/2008 E0.75 INCH CRAWFORD PA PUBLIC
&&
$$
KIELTYKA
000
NWUS51 KCLE 181918
LSRCLE
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
318 PM EDT MON AUG 18 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0253 PM TSTM WND DMG TOLEDO 41.66N 83.58W
08/18/2008 LUCAS OH PUBLIC
LARGE BRANCHES DOWN
0303 PM HAIL TOLEDO 41.66N 83.58W
08/18/2008 E0.88 INCH LUCAS OH PUBLIC
&&
$$
WILLARD
| 
