The March 2001 East Coast Storm

Slide 2

Snowfall totals (NERFC)

The evolving model and
forecaster perspectives

The evolving model and
forecaster perspective (cont.)

The evolving model and
forecaster perspective (cont.)

Day 7
from
Monday,
Feb 26, 2001

Day 6
from
Tuesday,
Feb 27, 2001

Day 5
from,
Wednesday,
Feb 28, 2001

Day 4
from
Thursday,
Mar 1, 2001

Day 3
from
Friday,
Mar 2, 2001

Day 2
from
Saturday,
Mar 3, 2001

Day 1
from
Sunday,
Mar 4, 2001

Uncertainty & current forecast accuracy
(HPC QPF verification -- 1-inch threat score)

Slide 15

HPC’s Role &
Communicating Uncertainty

HPC’s Role &
Communicating Uncertainty

HPC’s Extended Forecast Discussion
(released Mar 2, 2001, at 3:38 p.m.)

HPC’s Extended Forecast Discussion
(continued)

HPC’s Extended Forecast Discussion
(continued)

Concluding remarks

Acknowledgements