Alert archive / New York / Areal Flood Advisories in 2018

Areal Flood Advisory 21, NWS Albany, NY

July 5, 2018Albany County, New York

NWS Albany, NY issued this areal flood advisory at Jul 5, 2018, 1:26 PM EDT for Albany County, New York. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jul 5, 2018, 1:26 PM EDT (17:26 UTC)
Expired
Jul 5, 2018, 4:30 PM EDT
In force
3 hr
Issued by
NWS Albany, NY
Area
Storm-based polygon

County Albany County, NY

The radar

The Albany radar (KENX), 8 km from the middle of the area, began a volume at 17:26 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 5.4 hours before the alert went out and 214 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2018-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 844 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2018-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
844 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
4 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Albany, NY wrote its last area forecast discussion before this areal flood advisory went out at Jul 5, 12:50 PM EDT, 36 minutes earlier.

Area forecast discussion, Jul 5, 12:50 PM EDT, 36 minutes before
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Hazardous weather outlook, Jul 5, 3:55 AM EDT, 9 hours 31 minutes before
Hazardous Weather Outlook
National Weather Service Albany NY
355 AM EDT Thu Jul 5 2018

NYZ038>043-047>053-083-084-061100-
Southern Herkimer-Southern Fulton-Montgomery-Northern Saratoga-
Northern Warren-Northern Washington-Schoharie-Western Schenectady-
Eastern Schenectady-Southern Saratoga-Western Albany-Eastern Albany-
Western Rensselaer-Southeast Warren-Southern Washington-
355 AM EDT Thu Jul 5 2018

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for the Mohawk Valley, southeast
Adirondacks, Lake George Saratoga Region, Greater Capital District,
Schoharie Valley and Helderbergs of east central New York.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

There is a marginal risk of severe thunderstorms this afternoon into
tonight with the main threat being damaging wind gusts. Any
thunderstorms will also be capable of producing heavy rainfall which
may cause flooding of urban and poorly drained low lying areas.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Thunderstorms are also possible Friday morning. Any thunderstorms
will be capable of producing heavy rainfall which may cause flooding
of urban and poorly drained low lying areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested later today.

NYZ032-033-058-063-082-061100-
Northern Herkimer-Hamilton-Western Greene-Western Ulster-
Northern Fulton-
355 AM EDT Thu Jul 5 2018

This Hazardous Weather Outlook is for the southwestern Adirondacks
and central and southeast Catskills of east central New York.

.DAY ONE...Today and Tonight.

There is a marginal risk of severe thunderstorms this afternoon into
tonight with the main threat being damaging wind gusts. Any
thunderstorms will also be capable of producing heavy rainfall which
may cause flooding of urban and poorly drained low lying areas.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Thunderstorms are also possible Friday morning. Any thunderstorms
will be capable of producing heavy rainfall which may cause flooding
of urban and poorly drained low lying areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested later today.

CTZ001-013-061100-
Northern Litchfield-Southern Litchfield-
355 AM EDT Thu Jul 5 2018

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for northwestern Connecticut.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

Thunderstorms are possible this afternoon into tonight. Any thunderstorms
will be capable of producing heavy rainfall which may cause flooding
of urban and poorly drained low lying areas.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

There is a marginal risk of severe thunderstorms on Friday morning
with damaging wind gusts being the main threat. Any thunderstorms
will be capable of producing heavy rainfall which may cause flooding
of urban and poorly drained low lying areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ001-025-061100-
Northern Berkshire-Southern Berkshire-
355 AM EDT Thu Jul 5 2018

This Hazardous Weather Outlook is for western Massachusetts.

.DAY ONE...Today and Tonight.

There is a marginal risk of severe thunderstorms this afternoon into
tonight with the main threat being damaging wind gusts. Any
thunderstorms will also be capable of producing heavy rainfall which
may cause flooding of urban and poorly drained low lying areas.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

There is a marginal risk of severe thunderstorms on Friday morning
with damaging wind gusts being the main threat. Any thunderstorms
will be capable of producing heavy rainfall which may cause flooding
of urban and poorly drained low lying areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested later today.

NYZ054-059>061-064>066-VTZ013>015-061100-
Eastern Rensselaer-Eastern Greene-Western Columbia-Eastern Columbia-
Eastern Ulster-Western Dutchess-Eastern Dutchess-Bennington-
Western Windham-Eastern Windham-
355 AM EDT Thu Jul 5 2018

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for the Taconics and mid Hudson
Valley of east central New York and southern Vermont.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.

There is a marginal risk of severe thunderstorms this afternoon into
tonight with the main threat being damaging wind gusts. Any
thunderstorms will also be capable of producing heavy rainfall which
may cause flooding of urban and poorly drained low lying areas.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

There is a marginal risk of severe thunderstorms on Friday morning
with damaging wind gusts being the main threat. Any thunderstorms
will be capable of producing heavy rainfall which may cause flooding
of urban and poorly drained low lying areas.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested later today.

In the hours before

Special weather statement, Jul 5, 1:08 PM EDT, 18 minutes before
Special Weather Statement
National Weather Service Albany NY
108 PM EDT THU JUL 5 2018

NYZ052-053-059-060-051800-
Eastern Albany-Western Rensselaer-Eastern Greene-Western Columbia-
108 PM EDT THU JUL 5 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL COLUMBIA...
SOUTHEASTERN ALBANY...NORTHEASTERN GREENE AND SOUTHWESTERN RENSSELAER
COUNTIES...

At 108 PM EDT, a strong thunderstorm was located 7 miles west of
Coxsackie, or 12 miles northwest of Hudson, moving northeast at 10
mph.

This storm will be near...
  Coxsackie around 140 PM EDT.
  New Baltimore, Ravena, Valatie, Kinderhook and Selkirk around 200
  PM EDT.

This Includes Interstate 87 between exits 21B and 22.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4237 7403 4246 7403 4262 7374 4242 7359
      4237 7360 4227 7395
TIME...MOT...LOC 1708Z 236DEG 7KT 4239 7394

CS
Special weather statement, Jul 5, 1:14 PM EDT, 12 minutes before
Special Weather Statement
National Weather Service Albany NY
114 PM EDT THU JUL 5 2018

NYZ052-053-051800-
Eastern Albany-Western Rensselaer-
114 PM EDT THU JUL 5 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN ALBANY AND
SOUTHWESTERN RENSSELAER COUNTIES...

At 113 PM EDT, a strong thunderstorm was located over Guilderland, or
near Delmar, moving east at 10 mph.

Winds in excess of 30 mph are possible with this storm.

This storm will be near...
  Colonie around 125 PM EDT.
  Albany around 130 PM EDT.
  Loudonville around 145 PM EDT.
  East Greenbush, Rensselaer and Latham around 155 PM EDT.
  Troy, Cohoes, Watervliet, Menands, Green Island, Waterford,
  Wyantskill, West Sand Lake and Center Brunswick around 200 PM EDT.

This Includes The Following Highways... Interstate 90 between exits
10 and 24.
 Interstate 87 between exits 23 and 7.
 Interstate 787 between exits 1 and 9.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4256 7394 4274 7397 4279 7371 4278 7370
      4278 7369 4280 7367 4281 7362 4254 7358
TIME...MOT...LOC 1713Z 255DEG 9KT 4266 7386

CS

The office that day

Everything else NWS Albany, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 1:08 PM EDTSpecial Weather StatementALYAlbany52 min
Jul 5, 1:14 PM EDTSpecial Weather StatementALYAlbany46 min
Jul 5, 1:58 PM EDTFlash Flood WarningALYAlbany3 hr
Jul 5, 2:29 PM EDTSpecial Weather StatementALYSaratoga61 min
Jul 5, 2:46 PM EDTAreal Flood AdvisoryALYSaratoga, Schenectady2 hr
Jul 5, 3:23 PM EDTSpecial Weather StatementALYSchenectady52 min
Jul 5, 4:03 PM EDTSpecial Weather StatementALYHamilton42 min
Jul 5, 5:20 PM EDTSpecial Weather StatementALYAlbany25 min

Nearby

Areal Flood Advisories in New York, 2018Every areal flood advisory in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.