FFMP Improvements OB8.3 and OB9

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FFMP ImprovementsOB8.3 and OB9

• Ernie Wells
• National Flash Flood Services Program Leader
• Hydrologic Services Division
• Office of Climate, Water and Weather Services

CBRFC SH Call May 29, 2008
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Outline
FFMP Improvements (QPE/QPF Improvements)

• High-resolution Precipitation Estimation (HPE)
  (AWIPS OB8.3)

• High resolution rain rate and precipitation
  accumulation grids
• spatial resolution 1/4 HRAP mesh length (1x1
  km)
• Update frequency configurable up to 5 minute
  intervals
• DHR used to create radar rain rate estimates
• Gages are NOT used in this version of EMPE,
  however the MPE gage-radar bias table can be used
  in rain rate and accumulation estimation
• Dual Polarization DPR NOT used in this version of
  EMPE

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Outline
FFMP Improvements (QPE/QPF Improvements)

• High-resolution Precipitation Nowcaster (HPN)
  (AWIPS OB9.0)
• An extrapolative forecast of the reflectivity
  field valid for the next hour, updated every 15
  minutes on an HRAP grid. Additional fields for
  AWIPS display include
• 1-hour radar precipitation accumulation forecast
  (with and without bias correction)
• Instantaneous rain rate forecasts at 15 minute
  intervals out through 1-hour (with and without
  bias correction)
• RFC MPE Mean Field Bias to WFO (AWIPS OB8.2)
• WFO operators can select which RFC bias message
  to receive and which bias message to send to the
  RPG
• NMQ/Q2 infusion into NCEP (no targeted build)
• Probabilistic QPE (no targeted build)

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Outline
FFMP Improvements OB8.3 Improvements

• Ingest gridded data (QPE, QPF, and guidance)

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Outline
FFMP Improvements OB8.3 Improvements

• Attribute Inclusion in the Basin Trend Table

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Outline
FFMP Improvements OB8.3 Improvements

• Split Window QPF

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Outline
FFMP Improvements OB8.3 Improvements

• On the fly CWA coverage

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Outline
FFMP Improvements OB8.3 Improvements

• Enhanced Basin Trend

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Outline
FFMP Improvements OB8.3 Improvements

• Site Controlled Time Window Maximum
• Uses purge value from AWIPS Intelligent Purger
• Increase in number of monitor sites
• From 3 to 5
• Localization containment
• Separate from SCAN
• Enhanced Displaced Real-Time (DRT)

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Outline
FFMP Improvements OB9 Improvements

• Fixed Duration Basin Trend Graphs

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Outline
FFMP Improvements OB9 Improvements

• Fixed Duration Basin Trend Graphs

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Outline
FFMP Improvements OB9 Improvements

• FFG Updating

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Outline
Improving Flash Flood Services WarnGen OB8.3

• FFMP Basin names in WarnGen

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FFMP ImprovementsOB8.3 and OB9

• Thank you!
• Any Questions?

CBRFC SH Call May 29, 2008