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Geomagnetic Storm Watch: Implications for Communication and Visibility · EM Morning Brief

• 0:00
  Good
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  morning,
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  I'm
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  Cedric
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  and
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  this
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  is
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  your
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  EM
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  Morning
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  Brief
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  for
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  Tuesday,
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  January
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  20,
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  2026
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  Lake
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  Effect
• 0:07
  Snow
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  remains
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  the
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  top
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  hazard
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  today.
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  The
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  National
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  Weather
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  Service
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  keeps
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  winter
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  storm
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  warnings
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  in
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  place
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  downwind
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  of
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  lakes
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  Erie
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  and
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  Ontario
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  with
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  snowfall
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  rates
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  up
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  to
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  2
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  to
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  3
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  inches
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  per
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  hour,
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  blowing
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  and
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  drifting
• 0:20
  snow
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  and
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  periods
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  of
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  near
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  whiteout
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  conditions
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  through
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  Wednesday
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  afternoon.
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  Marine
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  hazards
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  also
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  persist
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  on
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  the
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  Great
• 0:28
  Lakes
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  with
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  heavy
• 0:29
  freezing
• 0:29
  spray
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  warnings
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  that
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  can
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  rapidly
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  ice
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  up
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  vessels.
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  Separately,
• 0:33
  NOAA's
• 0:34
  Space
• 0:34
  Weather
• 0:34
  Prediction
• 0:35
  center
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  reports
• 0:36
  a
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  G4
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  severe
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  geomagnetic
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  storm
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  watch
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  for
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  today
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  and
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  confirms
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  severe
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  levels
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  were
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  reached
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  late
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  Monday.
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  Brief
• 0:44
  disruptions
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  to
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  HF
• 0:45
  radio,
• 0:45
  GPS
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  and
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  satellites
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  are
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  possible
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  and
• 0:47
  auroras
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  could
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  be
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  visible
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  well
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  into
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  the
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  US
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  tonight
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  where
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  skies
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  are
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  clear.
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  Lets
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  run
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  through
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  the
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  states.
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  Maryland
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  Mid
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  Atlantic
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  remains
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  quiet
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  today,
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  but
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  the
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  local
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  NWS
• 0:58
  office
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  notes
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  a
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  colder
• 0:59
  pattern
• 1:00
  with
• 1:00
  a
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  shot
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  of
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  weekend
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  snow
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  increasingly
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  likely.
• 1:03
  Highs
• 1:03
  today
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  hold
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  in
• 1:04
  the
• 1:04
  20s
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  with
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  a
• 1:05
  modest
• 1:05
  warm
• 1:06
  up
• 1:06
  Wednesday
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  before
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  another
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  surge
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  of
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  cold
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  late
• 1:08
  week.
• 1:10
  Massachusetts
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  Marine
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  hazards
• 1:12
  are
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  the
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  main
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  concern
• 1:13
  today
• 1:13
  with
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  a
• 1:13
  gale
• 1:14
  warning
• 1:14
  small
• 1:14
  craft
• 1:15
  advisories
• 1:15
  around
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  southern
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  New
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  England
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  waters.
• 1:18
  Inland
• 1:18
  roads
• 1:19
  may
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  have
• 1:19
  slick
• 1:19
  spots
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  after
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  recent
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  snowfall.
• 1:21
  NWS
• 1:22
  posted
• 1:23
  regional
• 1:23
  totals
• 1:24
  for
• 1:24
  1-18-19
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  and
• 1:25
  keeps
• 1:26
  winter
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  Pages
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  active
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  as
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  another
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  weak
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  wave
• 1:28
  passes
• 1:28
  to
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  the
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  south.
• 1:30
  Michigan
• 1:31
  Southeast
• 1:32
  Michigan
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  remains
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  under
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  cold
• 1:33
  weather
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  messaging
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  this
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  morning
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  with
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  wind
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  chills
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  -5
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  degrees
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  to
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  -15
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  degrees
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  Fahrenheit
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  and
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  a
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  winter
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  weather
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  advisory
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  that
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  covered
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  the
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  early
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  commute.
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  Another
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  another
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  round
• 1:43
  of
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  light
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  snow
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  arrives
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  late
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  tonight
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  into
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  Wednesday
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  with
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  1
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  to
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  3
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  inches
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  possible
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  on
• 1:49
  Lake
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  Huron.
• 1:50
  A
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  heavy
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  freezing
• 1:51
  spray
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  warning
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  continues
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  through
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  this
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  afternoon.
• 1:55
  New
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  York
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  Lake
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  effect
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  storm
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  continues
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  across
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  western
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  and
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  north
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  central
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  New
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  York.
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  Winter
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  storm
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  warnings
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  run
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  into
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  Wednesday
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  afternoon
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  for
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  Oswego,
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  Jefferson,
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  Lewis,
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  Erie,
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  Genesee,
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  Wyoming,
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  Chautauqua,
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  Cattaraugus
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  and
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  Southern
• 2:09
  Erie.
• 2:10
  Expect
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  an
• 2:10
  additional
• 2:11
  6
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  to
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  12
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  inches
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  in
• 2:12
  the
• 2:12
  most
• 2:12
  persistent
• 2:13
  bands.
• 2:14
  Gusts
• 2:14
  to
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  approximately
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  40
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  mph
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  blowing
• 2:17
  drifting
• 2:17
  snow
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  and
• 2:18
  episodic
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  whiteouts.
• 2:19
  Rates
• 2:20
  May
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  peak
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  at
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  2
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  to
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  3
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  inches
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  per
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  hour.
• 2:22
  Ohio
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  North
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  coast
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  and
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  far
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  northeast
• 2:25
  Ohio
• 2:25
  face
• 2:25
  marine
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  icing.
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  Heavy
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  freezing
• 2:27
  spray
• 2:29
  warnings
• 2:29
  continue
• 2:29
  over
• 2:30
  Lake
• 2:30
  Erie
• 2:30
  with
• 2:30
  waves
• 2:31
  five
• 2:31
  to
• 2:31
  nine
• 2:31
  feet
• 2:32
  and
• 2:32
  rapid
• 2:32
  ice
• 2:33
  buildup
• 2:33
  possible.
• 2:34
  A
• 2:34
  cold
• 2:34
  weather
• 2:35
  advisory
• 2:35
  covered
• 2:35
  parts
• 2:36
  of
• 2:36
  NWN
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  central
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  Ohio
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  through
• 2:38
  noon
• 2:38
  with
• 2:38
  wind
• 2:38
  chills
• 2:39
  down
• 2:39
  to
• 2:39
  -15
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  degrees
• 2:40
  Fahrenheit.
• 2:42
  Mariners
• 2:42
  should
• 2:43
  avoid
• 2:43
  exposed
• 2:43
  runs
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  inland,
• 2:44
  limit
• 2:45
  time
• 2:45
  outdoors
• 2:45
  and
• 2:45
  watch
• 2:46
  for
• 2:46
  slick
• 2:46
  spots.
• 2:49
  Low
• 2:49
  visibility
• 2:50
  and
• 2:50
  stagnant
• 2:50
  air
• 2:51
  are
• 2:51
  the
• 2:51
  primary
• 2:51
  risks.
• 2:53
  Dense
• 2:53
  fog
• 2:54
  advisories
• 2:54
  and
• 2:54
  air
• 2:55
  stagnation
• 2:55
  advisories
• 2:56
  appear
• 2:56
  around
• 2:56
  the
• 2:56
  Willamette
• 2:57
  Valley
• 2:57
  and
• 2:57
  so
• 2:58
  too
• 2:58
  west
• 2:58
  Washington,
• 2:59
  Northwest
• 2:59
  Oregon.
• 3:00
  A
• 3:01
  beach
• 3:01
  hazard
• 3:01
  statement
• 3:02
  also
• 3:02
  appears
• 3:02
  along
• 3:03
  parts
• 3:03
  of
• 3:03
  the
• 3:03
  coast.
• 3:04
  Pennsylvania
• 3:06
  Northwest
• 3:07
  Pennsylvania
• 3:07
  deals
• 3:08
  with
• 3:08
  dangerous
• 3:08
  marine
• 3:09
  and
• 3:09
  shoreline
• 3:09
  icing
• 3:10
  on
• 3:10
  Lake
• 3:10
  Erie.
• 3:11
  Heavy
• 3:11
  freezing
• 3:12
  spray
• 3:12
  warnings
• 3:13
  are
• 3:13
  up
• 3:13
  into
• 3:13
  this
• 3:13
  afternoon
• 3:14
  and
• 3:15
  earlier
• 3:15
  cold
• 3:15
  weather
• 3:16
  advisories
• 3:16
  highlighted
• 3:17
  wind
• 3:17
  chills
• 3:17
  for
• 3:17
  Erie
• 3:18
  Crawford
• 3:20
  Hard
• 3:21
  freeze
• 3:21
  potential
• 3:21
  builds
• 3:22
  for
• 3:22
  the
• 3:22
  weekend
• 3:22
  across
• 3:23
  Southeast
• 3:23
  Texas.
• 3:25
  NWS
• 3:26
  Houston
• 3:26
  Galveston
• 3:27
  highlights
• 3:27
  medium
• 3:27
  to
• 3:28
  high
• 3:28
  odds
• 3:28
  of
• 3:28
  sub
• 3:28
  freezing
• 3:29
  temperatures
• 3:29
  reaching
• 3:30
  the
• 3:30
  coast
• 3:30
  Saturday,
• 3:31
  Sunday
• 3:31
  nights.
• 3:32
  A
• 3:32
  strong
• 3:33
  front
• 3:33
  arrives
• 3:33
  late
• 3:34
  Friday
• 3:34
  into
• 3:34
  Saturday.
• 3:36
  Washington
• 3:37
  Stagnant
• 3:37
  conditions
• 3:38
  and
• 3:38
  patchy
• 3:38
  fog
• 3:39
  linger
• 3:39
  in
• 3:39
  western
• 3:39
  Washington.
• 3:40
  NWS
• 3:41
  Seattle
• 3:42
  shows
• 3:42
  air
• 3:42
  stagnation
• 3:43
  advisories
• 3:43
  and
• 3:44
  localized
• 3:44
  dense
• 3:45
  fog
• 3:45
  advisories
• 3:45
  in
• 3:46
  effect.
• 3:47
  All
• 3:47
  other
• 3:47
  states
• 3:47
  have
• 3:48
  no
• 3:48
  significant
• 3:49
  updates
• 3:49
  in
• 3:49
  the
• 3:49
  last
• 3:50
  24
• 3:50
  hours.
• 3:52
  Links
• 3:52
  to
• 3:52
  our
• 3:52
  sources
• 3:53
  are
• 3:53
  in
• 3:53
  the
• 3:53
  show
• 3:53
  notes
• 3:54
  below.
• 3:55
  We'll
• 3:56
  continue
• 3:56
  to
• 3:56
  track
• 3:56
  the
• 3:56
  lake
• 3:57
  effect
• 3:57
  event
• 3:57
  and
• 3:57
  the
• 3:58
  space
• 3:58
  weather
• 3:58
  impacts
• 3:59
  through
• 3:59
  tonight.
• 4:01
  Stay
• 4:01
  safe.