| The medium range forecast products
include: 1) surface pressure patterns, circulation centers, and fronts
for days 3, 4, and 5 into the future, 2) daily maximum and minimum temperatures
and anomalies for days 3-7, 3) daily precipitation probabilities for days
3-7, and 4) total 5-day precipitation for days 1 through 5. These products
are issued once per day along with a written discussion. Separate forecasts,
similar to the 5-day mean products, are prepared for Hawaii.
Two meteorologists work this once a day shift.
One produces pressure systems/fronts, 5-day precipitation, and 3-5 day
POP progs while the other produces the 3-7 day temperature and 6-7 day
POP progs. They routinely use output from the MRF, ECMWF, and UKMET medium
range models and also consider the Canadian, the Navy's NAVGEM model, the
MRFX, a semi-operationally run experimental version of the MRF, and ensembles.
During hurricane season, at 1200 noon EDT time on a daily basis since June
1, 1997, the medium range pressure forecaster participates in a conference
call with the NHC via the Hurricane Hotline to discuss current and potential
tropical activity in the Atlantic and Eastern Pacific oceans and how the
medium range models are handling the situation. |
