Transcript Slide 1

Predictability of High Impact Weather during
the Cool Season over the Eastern U.S:
CSTAR Operational Aspects
Matthew Sardi and Jeffrey Tongue
NOAA/NWS, New York, NY
4 November 2010
Outline
• Who/Why
• WFO Goals
• Activities to Date:
– Training Initiatives
– Visualization Software
Who in NOAA
• WFO’s
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–
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New York
Mt Holly
State College
Pittsburgh
• NCEP
– EMC
– HPC
– OPC
• NOAA Earth System Research Laboratory
Motivation
• Prediction of mesoscale phenomenon within
extratropical storms remains a major
challenge.
Goal for the WFO
• Improvement in operational forecaster
understanding of uncertainty/predictability.
• Improve communication of uncertainties to
users/customers.
Specifics
• Upton, NY (KOKX):
– Improved understanding of cyclone evolution and
precipitation bands
– Ensemble Forecast Systems (EFS) application to Aviation
• Low-level winds
• Precipitation type
• Snowfall rate
– Mentors to the SBU students
• 1 SCEP
• 1 STEP
• 4 Volunteers
Specifics (cont)
• WFO Philadelphia, PA (KPHI):
– Storm surge
– Coastal flooding
• State College, PA (KCTP):
– Visualization Software
– Training
– Data management
• WFO Pittsburgh, PA (KPIT):
– Training
– Visualization
– Graphical Forecast Editor (GFE) Applications
Specifics (cont)
• Hydrometeorological Prediction Center (HPC):
– Precipitation banding.
– Cyclone track verification for the winter weather desk,
medium range forecast products, as well as the snowfall
and QPF products.
– HPC will host visiting forecasters, scientists, and project
students.
• Ocean Prediction Center (OPC):
– EFS application to cyclone track and intensity.
– East Coast Marine impacts - high winds and waves.
Specifics (cont)
• Environmental Modeling Center (EMC):
– EFS sensitivities related to the Weather Storms Reconnaissance
Program
– Impacts of wave packets
– Training of forecasters:
• Impact of targeted observations
• SREF system
– Cyclone verification
• Environmental System Research Laboratory (ESRL):
– EFS sensitivities related to the Weather Reconnaissance
Program
– Training on the impact of targeted observations on
predictability.
Current CSTAR Training Initiatives
• Wave Packets
• Targeted Observations
• ALPS
Wave Packets
Target Observations
Advanced Linux Prototype System
(ALPS)
• Running on a “non-baseline” AWIPS
Workstation.
• Looks and Feels like D2D
• Designed for probabilistic forecasting
• Visualizing Ensemble Data
– Weighting Ensemble Members
– Generating Probabilistic Grids
– Etc
ALPS
New Projections
Statistical Functionality
A Brief Example
• The following are all 168 HR (7 Day) Forecasts
from last Thursday
• Valid at 8 AM this Morning – Thursday, Nov 4th
GEFS Members + ECMWF
ECMWF
GEFS Mean
GEFS Mean + ECMWF = MEAN
Example Statistics - 850 Temperatures
850 Temperatures - cont
How do I get ALPS ?
• Visit the SBU CSTAR Page:
• http://dendrite.somas.stonybrook.edu/CSTAR
/cstar.html
ALPS GFE - Future
• Deployment of Probabilistic Products
• Aviation Specific Examples
– Wind Speed
– Wind Direction
– Gusts (probability of being reported)
• No yet Loaded at OKX
Example Probabilistic Products
Example Probabilistic Products
BUFKIT 10
• SREF (21 Members)
• WDTB WRF Ensemble
– Resolution: 24 KM
– Frequency: 00Z and 12Z
3
– Members: 8 ensemble members (2 ) x 2
Initializations
• NMM/ARW
• NAM/GFS
• KF/BMJ
Boundary Layer Winds - Aviation
Questions?
• CSTAR E-Mail List
– Send Jeff Waldstreicher an e-mail
• CSTAR WEB PAGE:
– http://dendrite.somas.stonybrook.edu/CSTAR/cstar.html