SMOKE MANAGEMENT
AT WFO MIDLAND
(AND HOPEFULLY ACROSS NFS R3)

REASONING

• Consistent grids
• Have some basis in science
• Rawinsonde data too far apart
• Consolidate methodologies!

CONSISTENCY!

• Formatters had to be coded
• Consistent fields in time & space
• Had to make physical sense

BUT MOST OF ALL

AIRSHEDS CAN

• Span PSAs
• Span CWAs
• Politically sensitive

AIRSHED MANAGERS

• In 2008 they told R3...
• Wanted everything we had
• Wanted it now
• Wanted it hourly to D+10

WE RESPONDED

• Will work on that
• Will work on that, too
• You gotta be kidding!

FINALIZE FIRE WX

A COMPLETE SET OF GRIDS

CREATE SMOKE MGMT GRIDS

SO WE STARTED TO CODE

HAINES INDEX

• AMA uses "mid"
• "high" everywhere else
• Easy to code

MIXING HEIGHT

• Surface T + 2˚C
• Remember, we're 2.5km
• Later studies refine this?

CRUDE INTEGRATION

• Parcel lifted through model layers
• Once the parcel is colder, then
• Interpolate back to find MixHgt

TRANSPORT WIND

• Vector average of winds
• Can't be more than Wind

VENTILATION RATE

• TransWind x MixHgt
• Scaled to nearest 1000'

USES LATEST NAM12

SMOKE MANAGEMENT