Alert archive / New York / Special Weather Statements in 2011

Special Weather Statement, NWS New York, NY

August 21, 2011Bronx County, New York County, New York

NWS New York, NY issued this special weather statement at Aug 21, 2011, 11:32 AM EDT for Bronx County, New York County, New York. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 21, 2011, 11:32 AM EDT (15:32 UTC)
Expired: Aug 21, 2011, 12:15 PM EDT
In force: 43 min
Issued by: NWS New York, NY

Counties Bronx County, NY, New York County, NY

The radar

The Brookhaven radar (KOKX), 83 km from the middle of the area, began a volume at 15:32 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, 3.5 hours before the alert went out and 83 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 874 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 857 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

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

NWS New York, NY wrote its last area forecast discussion before this special weather statement went out at Aug 21, 10:54 AM EDT, 38 minutes earlier.

Area forecast discussion, Aug 21, 10:54 AM EDT, 38 minutes before

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Hazardous weather outlook, Aug 21, 6:03 AM EDT, 5 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NEW YORK NY
603 AM EDT SUN AUG 21 2011

CTZ005>012-NYZ067>071-078>081-177-179-221015-
NORTHERN FAIRFIELD-NORTHERN NEW HAVEN-NORTHERN MIDDLESEX-
NORTHERN NEW LONDON-SOUTHERN FAIRFIELD-SOUTHERN NEW HAVEN-
SOUTHERN MIDDLESEX-SOUTHERN NEW LONDON-ORANGE-PUTNAM-ROCKLAND-
NORTHERN WESTCHESTER-SOUTHERN WESTCHESTER-NORTHWESTERN SUFFOLK-
NORTHEASTERN SUFFOLK-SOUTHWESTERN SUFFOLK-SOUTHEASTERN SUFFOLK-
NORTHERN NASSAU-SOUTHERN NASSAU-
603 AM EDT SUN AUG 21 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN CONNECTICUT AND
SOUTHEAST NEW YORK.

.DAY ONE...TODAY AND TONIGHT.

SEVERE THUNDERSTORM DEVELOPMENT IS EXPECTED THIS AFTERNOON AND
TONIGHT AHEAD OF A STRONG COLD FRONT. STORMS WILL BE CAPABLE OF
PRODUCING DAMAGING WINDS...LARGE HAIL...ISOLATED TORNADOES AND
LOCALIZED FLASH FLOODING.

THE SEVERE WEATHER THREAT WILL BEGIN ACROSS AREAS NORTH AND WEST
OF NEW YORK CITY THIS AFTERNOON...THEN TRANSLATE FROM WEST TO EAST
DURING THE REMAINDER OF THE DAY INTO THE OVERNIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME THAT WOULD MEET
NATIONAL WEATHER SERVICE WARNING CRITERIA.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

&&

THIS HAZARDOUS WEATHER OUTLOOK PROVIDES A SUMMARY OF POTENTIAL
WIDESPREAD HAZARDOUS WEATHER EVENTS THAT MAY REACH NWS WARNING
CRITERIA. MOST LONG FUSED NWS WATCHES...WARNINGS AND ADVISORIES IN
EFFECT ARE HIGHLIGHTED.

PLEASE REFER TO THE LATEST NWS FORECASTS FOR WEATHER NOT MEETING NWS
WARNING CRITERIA.

NJZ002-004-006-103>108-221015-
WESTERN PASSAIC-EASTERN PASSAIC-HUDSON-WESTERN BERGEN-EASTERN BERGEN-
WESTERN ESSEX-EASTERN ESSEX-WESTERN UNION-EASTERN UNION-
603 AM EDT SUN AUG 21 2011

...FLASH FLOOD WATCH IN EFFECT FROM 3 PM EDT THIS AFTERNOON THROUGH
LATE TONIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST NEW JERSEY.

.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.

   FLASH FLOOD WATCH.

IN ADDITION TO THE FLOOD THREAT...SEVERE THUNDERSTORM DEVELOPMENT
IS EXPECTED THIS AFTERNOON AND TONIGHT AHEAD OF A STRONG COLD
FRONT. STORMS WILL BE CAPABLE OF PRODUCING DAMAGING WINDS...LARGE
HAIL AND ISOLATED TORNADOES.

THE SEVERE WEATHER THREAT WILL BEGIN ACROSS AREAS NORTH AND WEST
OF NEW YORK CITY THIS AFTERNOON...THEN TRANSLATE FROM WEST TO EAST
DURING THE REMAINDER OF THE DAY INTO THE OVERNIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME THAT WOULD MEET
NATIONAL WEATHER SERVICE WARNING CRITERIA.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

&&

THIS HAZARDOUS WEATHER OUTLOOK PROVIDES A SUMMARY OF POTENTIAL
WIDESPREAD HAZARDOUS WEATHER EVENTS THAT MAY REACH NWS WARNING
CRITERIA. MOST LONG FUSED NWS WATCHES...WARNINGS AND ADVISORIES IN
EFFECT ARE HIGHLIGHTED.

PLEASE REFER TO THE LATEST NWS FORECASTS FOR WEATHER NOT MEETING NWS
WARNING CRITERIA.

NYZ072>075-176-178-221015-
NEW YORK (MANHATTAN)-BRONX-RICHMOND (STATEN ISLAND)-KINGS (BROOKLYN)-
NORTHERN QUEENS-SOUTHERN QUEENS-
603 AM EDT SUN AUG 21 2011

...FLASH FLOOD WATCH IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH
LATE TONIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST 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.

   FLASH FLOOD WATCH.

IN ADDITION TO THE FLOOD THREAT...SEVERE THUNDERSTORM DEVELOPMENT
IS EXPECTED THIS AFTERNOON AND TONIGHT AHEAD OF A STRONG COLD
FRONT. STORMS WILL BE CAPABLE OF PRODUCING DAMAGING WINDS...LARGE
HAIL AND ISOLATED TORNADOES.

THE SEVERE WEATHER THREAT WILL BEGIN ACROSS AREAS NORTH AND WEST
OF NEW YORK CITY THIS AFTERNOON...THEN TRANSLATE FROM WEST TO EAST
DURING THE REMAINDER OF THE DAY INTO THE OVERNIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME THAT WOULD MEET
NATIONAL WEATHER SERVICE WARNING CRITERIA.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

&&

THIS HAZARDOUS WEATHER OUTLOOK PROVIDES A SUMMARY OF POTENTIAL
WIDESPREAD HAZARDOUS WEATHER EVENTS THAT MAY REACH NWS WARNING
CRITERIA. MOST LONG FUSED NWS WATCHES...WARNINGS AND ADVISORIES IN
EFFECT ARE HIGHLIGHTED.

PLEASE REFER TO THE LATEST NWS FORECASTS FOR WEATHER NOT MEETING NWS
WARNING CRITERIA.

ANZ330-335-338-340-345-350-353-355-221015-
LONG ISLAND SOUND EAST OF NEW HAVEN CT/PORT JEFFERSON NY-
LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY-
NEW YORK HARBOR-PECONIC AND GARDINERS BAYS-
SOUTH SHORE BAYS FROM JONES INLET THROUGH SHINNECOCK BAY-
MORICHES INLET NY TO MONTAUK POINT NY OUT 20 NM-
FIRE ISLAND INLET NY TO MORICHES INLET NY OUT 20 NM-
SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM-
603 AM EDT SUN AUG 21 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ATLANTIC COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

SEVERE THUNDERSTORM DEVELOPMENT IS EXPECTED LATE THIS AFTERNOON
AND TONIGHT AHEAD OF A STRONG COLD FRONT. STORMS WILL BE CAPABLE
OF PRODUCING WIND GUSTS IN EXCESS OF 50 KT...LARGE HAIL...ISOLATED
WATERSPOUTS AND TORRENTIAL RAIN.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME THAT WOULD MEET
NATIONAL WEATHER SERVICE WARNING CRITERIA.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

&&

THIS HAZARDOUS WEATHER OUTLOOK PROVIDES A SUMMARY OF POTENTIAL
WIDESPREAD HAZARDOUS WEATHER EVENTS THAT MAY REACH NWS WARNING
CRITERIA. MOST LONG FUSED NWS WATCHES...WARNINGS AND ADVISORIES IN
EFFECT ARE HIGHLIGHTED.

PLEASE REFER TO THE LATEST NWS FORECASTS FOR WEATHER NOT MEETING NWS
WARNING CRITERIA.

JMC

In the hours before

Special weather statement, Aug 21, 11:32 AM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
1132 AM EDT SUN AUG 21 2011

CTZ009-NJZ006-104-NYZ071>073-211615-
BRONX-EASTERN BERGEN-HUDSON-NEW YORK (MANHATTAN)-SOUTHERN
FAIRFIELD-SOUTHERN WESTCHESTER-
1132 AM EDT SUN AUG 21 2011

...STRONG THUNDERSTORM WILL IMPACT BRONX...HUDSON...NEW YORK
(MANHATTAN)...SOUTHEASTERN BERGEN...SOUTHERN FAIRFIELD AND
WESTCHESTER COUNTIES...

AT 1128 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR RIDGEFIELD...AND MOVING NORTHEAST AT 20
MPH.

FREQUENT CLOUD TO GROUND LIGHTNING...SMALL HAIL...AND WINDS UP TO 40
MPH ARE POSSIBLE WITH THIS STORM. IN ADDITION...HEAVY RAIN...WITH
RAINFALL RATES OF UP TO AN INCH AN HOUR...IS POSSIBLE WITH THIS
STORM. THIS COULD CAUSE PONDING OF WATER ON ROADWAYS...AND MINOR
FLOODING OF POOR DRAINAGE AREAS.

LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE
TO SAFE SHELTER IMMEDIATELY.

LAT...LON 4075 7403 4084 7412 4086 7411 4088 7412
      4112 7365 4102 7359 4099 7364 4094 7367
      4094 7370 4093 7371 4088 7377 4086 7380
      4083 7379 4080 7391 4078 7394

JC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 21, 3:49 AM EDT	Small Craft Advisory	OKX		30 hr
Aug 21, 6:00 AM EDT	Flash Flood Watch	OKX	Bronx, Kings, Nassau, New York, Orange, Putnam and 4 more	15 hr
Aug 21, 12:13 PM EDT	Special Weather Statement	OKX	Bronx	47 min
Aug 21, 12:26 PM EDT	Severe Thunderstorm Warning	OKX	Westchester	49 min
Aug 21, 12:51 PM EDT	Special Weather Statement	OKX	Orange	54 min
Aug 21, 12:59 PM EDT	Severe Thunderstorm Warning	OKX	Putnam	23 min
Aug 21, 1:09 PM EDT	Severe Thunderstorm Warning	OKX	Westchester	21 min
Aug 21, 1:17 PM EDT	Special Weather Statement	OKX	Rockland	58 min
Aug 21, 1:23 PM EDT	Special Weather Statement	OKX	Putnam	67 min
Aug 21, 1:28 PM EDT	Special Weather Statement	OKX	Orange	62 min
Aug 21, 1:43 PM EDT	Severe Thunderstorm Warning	OKX	Putnam, Rockland, Westchester	47 min
Aug 21, 2:15 PM EDT	Severe Thunderstorm Warning	OKX	Putnam	21 min
Aug 21, 3:43 PM EDT	Special Marine Warning	OKX		32 min
Aug 21, 4:00 PM EDT	Severe Thunderstorm Warning	OKX	Putnam, Westchester	45 min
Aug 21, 4:07 PM EDT	Severe Thunderstorm Warning	OKX	Kings, Nassau, Queens	38 min
Aug 21, 4:20 PM EDT	Special Marine Warning	OKX		40 min
Aug 21, 4:37 PM EDT	Tornado Warning	OKX	Putnam, Westchester	38 min
Aug 21, 4:47 PM EDT	Severe Thunderstorm Warning	OKX	Nassau, Queens, Suffolk	17 min
Aug 21, 4:58 PM EDT	Tornado Warning	OKX	Putnam	30 min
Aug 21, 5:51 PM EDT	Special Weather Statement	OKX	Rockland, Westchester	39 min
Aug 21, 6:33 PM EDT	Areal Flood Advisory	OKX	Orange, Rockland	117 min
Aug 21, 6:38 PM EDT	Special Weather Statement	OKX	Rockland	52 min
Aug 21, 6:46 PM EDT	Flash Flood Warning	OKX	Orange, Rockland	56 min
Aug 21, 7:19 PM EDT	Special Weather Statement	OKX	Putnam	41 min
Aug 21, 7:25 PM EDT	Areal Flood Advisory	OKX	Putnam, Westchester	2 hr
Aug 21, 12:38 PM EDT	Severe Thunderstorm Warning	OKX	Bergen, Essex, Passaic	50 min
Aug 21, 3:23 PM EDT	Special Weather Statement	OKX		67 min
Aug 21, 4:03 PM EDT	Severe Thunderstorm Warning	OKX	Greater Bridgeport Planning Region	42 min
Aug 21, 4:41 PM EDT	Severe Thunderstorm Warning	OKX	Greater Bridgeport Planning Region, Naugatuck Valley Planning Region	49 min
Aug 21, 5:08 PM EDT	Severe Thunderstorm Warning	OKX	Greater Bridgeport Planning Region, Naugatuck Valley Planning Region	52 min
Aug 21, 5:18 PM EDT	Severe Thunderstorm Warning	OKX	Naugatuck Valley Planning Region	27 min
Aug 21, 5:25 PM EDT	Areal Flood Advisory	OKX	Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region	80 min
Aug 21, 5:58 PM EDT	Severe Thunderstorm Warning	OKX	Greater Bridgeport Planning Region, Naugatuck Valley Planning Region	32 min
Aug 21, 6:27 PM EDT	Severe Thunderstorm Warning	OKX	Naugatuck Valley Planning Region	48 min

Nearby

Special Weather Statements in New York, 2011 Every special weather statement in 2011

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.