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Technical Implementation Notice 10-51 Amended National Weather Service Headquarters Washington DC 1101 PM EST Mon Dec 6 2010
To: National Weather Service Offices Federal Aviation Administration Family of Services Subscribers Other Customers of NWS Aviation Forecasts
From: Cynthia Abelman Chief, Aviation Services Branch
Subject: Amended: Forecast Icing Severity Product To Be Converted From Experimental To Operational: Effective January 18 2011
The following changes have no impact on NOAA Weather Wire Service Subscribers
This amends a previous TIN 10-51 to note the FIP Potential Icing Forecast Product has changed to a probability icing forecast product
Effective Tuesday, January 18 2011 at 1300 Coordinated Universal Time (UTC), the NWS Aviation Weather Center (AWC) in Kansas City, MO, will convert the gridded Forecast Icing Severity (FIS) from experimental to operational status. The FIS provides forecasts for the potential occurrence of aircraft icing. In addition the FIP Potential Icing Forecast Product has changed to a Probability Icing Forecast Product. See the link below for details on GRIB file changes.
http://aviationweather.gov/notice/fip_severity.php
The FIS domain covers the contiguous 48 United States and adjacent coastal waters in 1000 foot increments between 1000 and 30,000 feet above Mean Sea Level. The FIS is a forecast extension of the current icing severity (CIP) product and predicts the icing severity out to 12 hours. Forecast hours include H+01, H+02, H+03, H+06, H+09, and H+12. The FIP is produced automatically from the 20 km Rapid Update Cycle (RUC) model runs.
The WMO Headings for the FIP Icing Severity are as follows.
Flight WMO Level Heading ----- ----------- 010 YLX*93 KKCI 020 YLX*95 KKCI 030 YLX*90 KKCI 040 YLX*84 KKCI 050 YLX*85 KKCI 060 YLX*81 KKCI 070 YLX*78 KKCI 080 YLX*75 KKCI 090 YLX*73 KKCI 100 YLX*70 KKCI 110 YLX*67 KKCI 120 YLX*65 KKCI 130 YLX*62 KKCI 140 YLX*60 KKCI 150 YLX*57 KKCI 160 YLX*55 KKCI 170 YLX*53 KKCI 180 YLX*50 KKCI 190 YLX*48 KKCI 200 YLX*46 KKCI 210 YLX*45 KKCI 220 YLX*43 KKCI 230 YLX*41 KKCI 240 YLX*39 KKCI 250 YLX*38 KKCI 260 YLX*36 KKCI 270 YLX*34 KKCI 280 YLX*33 KKCI 290 YLX*32 KKCI 300 YLX*30 KKCI
Where * = B = 01 Hour Forecast * = C = 02 Hour Forecast * = D = 03 Hour Forecast * = G = 06 Hour Forecast * = J = 09 Hour Forecast * = M = 12 Hour Forecast
On January 18, 2011, FIP Icing Severity Output in gridded binary (GRIB) format will be available through:
1. NWS Service ftp Servers:
ftp://tgftp.nws.noaa.gov/SL.us008001/DC.avspt/DS.fipgb
2. The Family Of Services (FOS) high resolution data service and server access service.
To obtain sample gridded FIP dat,a contact:
Mr. Robert Sallee Senior Software Engineer - Aviation Weather Center 7220 NW 101st Terrace Room 101 Kansas City Mo 64153 816-584-7256 Robert.Sallee@noaa.gov
If you have questions about this product contact:
Mr. Pat Murphy Warning Coordination Meteorologist Aviation Weather Center Kansas City Mo 64153 816-584-7239 Michael.Pat.Murphy@noaa.gov
National Technical Implementation Notices are online at:
http://www.nws.noaa.gov/om/notif.htm
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