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NATIONAL TECHNICAL INFORMATION MESSAGE 94-21
NATIONAL WEATHER SERVICE HEADQUARTERS
200 PM EDT MON JUL 18 1994
TO: ALL NWS PRODUCT USERS
FROM: MARY C. NEWTON
ACTING CHIEF, SERVICES DEVELOPMENT BRANCH
SUBJECT: CHANGES TO MRF-BASED STATISTICAL FORECASTS
(THE FOLLOWING INFORMATION WAS PROVIDED BY MR. JOHN JENSENIUS OF
THE TECHNIQUES DEVELOPMENT LABORATORY).
Beginning on or about September 1, 1994, during the 0000 UTC
cycle, numerous changes will be made to the format of the
alphanumeric messages that contain MRF-based statistical
forecasts. These messages are distributed on AFOS under the FMR
category and disseminated to external users as the FOXCxx,
FOXExx, FOXSxx, FOXWxx, and FOUS20 messages, where xx is a two
digit number identifying each message. The messages contain
objective forecasts of maximum and minimum temperature,
probability of precipitation, mean cloudiness, mean wind speed,
and conditional probability of snow for 12-h periods ranging from
1 to 8 days in advance. The planned changes are outlined below.
1. In the heading line that begins with the station call
letters, the month will be replaced by the day of the week. For
example:
ALB DEC 08| DEC 09| DEC 10| DEC 11| DEC 12| DEC 13| ...
will be replaced by
ALB SUN 08| MON 09| TUE 10| WED 11| THU 12| FRI 13| ...
2. Three new messages will be available. They are:
FOXE61 KWBC (NMCFMRGSP) - Containing forecasts for:
GSP - Greenville, SC
CLT - Charlotte, NC
FOXC74 KWBC (NMCFMRMQT) - Containing forecasts for:
MQT - Marquette, MI
FOXC75 KWBC (NMCFMRPAH) - Containing forecasts for:
PAH - Paducah, KY
3. The following stations will be removed from the FOXE45:
GSP - Greenville, SC
CLT - Charlotte, NC
4. The WMO header for the Alaskan guidance message (FOUS20 KWBC)
will be replaced by a new WMO header (FOAK20 KWBC).
5. Additional stations will be added to the following bulletins.
Only maximum and minimum temperature guidance will be
available for these new locations.
FOXC51 KWBC (NMCFMRFGF) - GFK Grand Forks, ND
FOXC60 KWBC (NMCFMRLBF) - VTN Valentine, NE
FOXC64 KWBC (NMCFMRMPX) - STC Saint Cloud, MN
FOXC67 KWBC (NMCFMRPUB) - TAD Trinidad, CO
FOXS40 KWBC (NMCFMRABQ) - GUP Gallup, NM
ROW Roswell, NM
TCS Truth or Consequences, NM
FOXS63 KWBC (NMCFMREWX) - DRT Del Rio, TX
FOXS66 KWBC (NMCFMRTLH) - ABY Albany, GA
FOXW40 KWBC (NMCFMRBIL) - MLS Miles City, MT
FOXW41 KWBC (NMCFMRBOI) - BNO Burns, OR
FOXW44 KWBC (NMCFMRHNX) - BFL Bakersfield, CA
FOXW50 KWBC (NMCFMRLOX) - RIV Riverside, CA
FOXW55 KWBC (NMCFMRPSR) - YUM Yuma, AZ
FOXW56 KWBC (NMCFMRPIH) - MYL McCall, ID
FOXW57 KWBC (NMCFMRREV) - RDD Redding, CA
FOXW60 KWBC (NMCFMRSEW) - HQM Hoquiam, WA
FOAK20 KWBC - ADQ Kodiak, AK
BIG Big Delta, AK
BTT Bettles, AK
CDV Cordova, AK
DLG Dillingham, AK
ENA Kenai, AK
GKN Gulkana, AK
HOM Homer, AK
KTN Ketchikan, AK
ORT Northway, AK
SCC Deadhorse, AK
SIT Sitka, AK
TKA Talkeetna, AK
VWS Valdez, AK
5WT Whittier, AK
6. For AFOS users only, the following product identifiers are
being changed:
NMCFMRENX changed to NMCFMRILX
NMCFMRMYG changed to NMCFMRFGF
NMCFMRLBB changed to NMCFMRLUB
Technical Procedures Bulletin No. 411 describes the MRF-based
statistical forecast messages. An updated Appendix for this
Bulletin containing the new station list will be issued shortly.
If you do not have a copy of this bulletin and would like a copy,
please contact Chris Alex of the Office of Meteorology at
(301)-713-0462.
If you need further information about the MRF-based statistical
weather forecasts or the forecast messages, please call John
Jensenius of the Techniques Development Laboratory at
(301)-763-8151.
END
NNNN?ZCZC WSHPNSNMC ALL
TTAA00 KWSH DDHHMM
NATIONAL TECHNICAL INFORMATION MESSAGE 94-22
NATIONAL WEATHER SERVICE HEADQUARTERS
200 PM EDT TUE JUL 18 1994
TO: ALL NWS PRODUCT USERS
FROM: MARY C. NEWTON
ACTING CHIEF, SERVICES DEVELOPMENT BRANCH
SUBJECT: CANADIAN MRF-BASED STATISTICAL FORECASTS
(THE FOLLOWING INFORMATION WAS PROVIDED BY MR. JOHN JENSENIUS OF
THE TECHNIQUES DEVELOPMENT LABORATORY).
Beginning on or about September 1, 1994, during the 0000 UTC
cycle, a new message containing MRF-based statistical maximum
(max) and minimum (min) temperature forecasts for 12 Canadian
stations will be issued. The message will be generated from the
0000 UTC run of the model and should be available about 0900 UTC.
This message will be distributed on AFOS under the FMRCND product
identifier and will be disseminated to external users as the
FECN21 message.
The FECN21 (FMRCND) message will contain statistical forecasts of
the daytime max and nighttime min temperature for projections out
to 8 days in advance and is based on the U.S. National
Meteorological Center's MRF run of the Global Spectral Model.
Also included in the message are the climatic normal min and max
temperatures for the 96 to 120-hour period (under the heading of
CLIMO).
Forecasts for the following stations will be contained in the
message:
WLF - Lansdowne House, OT
YEG - Edmonton, AB
YPA - Prince Albert, SK
YQB - Quebec, QE
YQD - The Pas, MB
YQR - Regina, SK
YQT - Thunder Bay, OT
YVR - Vancouver, BC
YWG - Winnipeg, MB
YXS - Prince George, BC
YYB - North Bay, OT
YYC - Calgary, AB
The techniques used to derive the max and min temperature
guidance for these Canadian stations are the same as those used
to derive the max and min temperature guidance for U.S. stations
(see Technical Procedures Bulletin (TPB) No. 411 for a
description of the MRF-based statistical guidance for the U.S.).
If you do not have a copy of TPB No. 411 and would like a copy,
please contact Chris Alex of the Office of Meteorology at (301)-
713-0462.
If you need further information about the max/min temperature
guidance or about the message for Canadian stations, please call
John Jensenius of the Techniques Development Laboratory at
(301)-763-8151.
END
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