Alert archive / New York / Special Weather Statements in 2010

Special Weather Statement, NWS New York, NY

July 21, 2010Suffolk County, New York

NWS New York, NY issued this special weather statement at Jul 21, 2010, 1:21 PM EDT for Suffolk County, New York. It was in force for 54 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
Jul 21, 2010, 1:21 PM EDT (17:21 UTC)
Expired
Jul 21, 2010, 2:15 PM EDT
In force
54 min
Issued by
NWS New York, NY

County Suffolk County, NY

The radar

The Brookhaven radar (KOKX), 21 km from the middle of the area, began a volume at 17:22 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 22 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 2010-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 299 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 2010-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.19395878Sfc1 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
299 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
1033 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.1

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 Jul 21, 11:04 AM EDT, 2 hours 17 minutes earlier.

Area forecast discussion, Jul 21, 11:04 AM EDT, 2 hours 17 minutes before
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Hazardous weather outlook, Jul 21, 5:05 AM EDT, 8 hours 16 minutes before
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In the hours before

Special weather statement, Jul 21, 12:37 PM EDT, 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
1237 PM EDT WED JUL 21 2010

NYZ067-069-211730-
ORANGE-ROCKLAND-
1237 PM EDT WED JUL 21 2010

...STRONG THUNDERSTORM WILL IMPACT SOUTHERN ORANGE AND NORTHERN
ROCKLAND COUNTIES...

AT 1231 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A DEVELOPING STRONG THUNDERSTORM NEAR UNIONVILLE...OR 10 MILES
SOUTHEAST OF PORT JERVIS...MOVING EAST AT 25 MPH.

PEOPLE IN ROCKLAND AND SOUTHERN ORANGE COUNTIES...INCLUDING
UNIONVILLE...FLORIDA...WARWICK...GREENWOOD LAKE...MONROE...HARRIMAN
AND POMONA...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR
POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD
SEVERE WEATHER THREATEN.

WINDS UP TO 40 MPH ARE EXPECTED WITH THIS STORM.

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 4140 7461 4135 7396 4132 7398 4129 7395
      4127 7397 4123 7396 4112 7398 4117 7433
      4119 7438 4131 7462

GOODMAN
Special weather statement, Jul 21, 1:21 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
121 PM EDT WED JUL 21 2010

NYZ078>081-211815-
NORTHEAST SUFFOLK-NORTHWEST SUFFOLK-SOUTHEAST SUFFOLK-SOUTHWEST
SUFFOLK-
121 PM EDT WED JUL 21 2010

...DEVELOPING THUNDERSTORMS WILL IMPACT SUFFOLK COUNTY...

AT 118 PM EDT...SATELLITE IMAGERY AND NATIONAL WEATHER SERVICE
DOPPLER RADAR INDICATED THAT THUNDERSTORMS WERE RAPIDLY DEVELOPING
NEAR MANORVILLE...AND MOVING EAST AT 20 MPH.

PEOPLE IN SUFFOLK COUNTY...INCLUDING MANORVILLE...CENTER MORICHES...
WESTHAMPTON...RIVERHEAD...SHINNECOCK HILLS AND SOUTHAMPTON...SHOULD
MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS
AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER
THREATEN.

WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. IN ADDITION...VERY
HEAVY RAIN...WITH RAINFALL RATES OF 1 TO 2 INCHES AN HOUR...IS
OCCURRING WITH THESE STORMS. 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 4080 7261 4078 7273 4080 7269 4081 7271
      4076 7280 4074 7295 4075 7298 4091 7300
      4099 7250 4092 7261 4091 7250 4095 7245
      4099 7249 4100 7247 4098 7246 4100 7244
      4096 7245 4097 7240 4088 7235

SMITH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 12:37 PM EDTSpecial Weather StatementOKXRockland53 min
Jul 21, 1:29 PM EDTAreal Flood AdvisoryOKXSuffolk2 hr
Jul 21, 1:39 PM EDTAreal Flood AdvisoryOKXOrange111 min
Jul 21, 1:51 PM EDTSevere Thunderstorm WarningOKXSuffolk39 min
Jul 21, 1:54 PM EDTSpecial Marine WarningOKX21 min
Jul 21, 2:15 PM EDTSpecial Marine WarningOKX45 min
Jul 21, 3:01 PM EDTSpecial Weather StatementOKXWestchester59 min
Jul 21, 4:02 PM EDTSevere Thunderstorm WarningOKXOrange58 min
Jul 21, 4:22 PM EDTSevere Thunderstorm WarningOKXOrange, Putnam, Rockland, Westchester53 min
Jul 21, 4:31 PM EDTSpecial Marine WarningOKX29 min
Jul 21, 4:44 PM EDTSevere Thunderstorm WarningOKXOrange46 min
Jul 21, 5:01 PM EDTSpecial Marine WarningOKX59 min
Jul 21, 5:03 PM EDTSevere Thunderstorm WarningOKXPutnam, Westchester57 min
Jul 21, 5:26 PM EDTSpecial Marine WarningOKX34 min
Jul 21, 5:28 PM EDTSevere Thunderstorm WarningOKXOrange, Putnam, Rockland, Westchester62 min
Jul 21, 5:34 PM EDTAreal Flood AdvisoryOKXOrange, Putnam, Rockland, Westchester116 min
Jul 21, 5:43 PM EDTSpecial Marine WarningOKX62 min
Jul 21, 6:03 PM EDTSevere Thunderstorm WarningOKXSuffolk27 min
Jul 21, 6:03 PM EDTSevere Thunderstorm WarningOKXPutnam, Rockland, Westchester57 min
Jul 21, 6:22 PM EDTTornado WarningOKXSuffolk23 min
Jul 21, 6:24 PM EDTSpecial Marine WarningOKX36 min
Jul 21, 6:34 PM EDTSevere Thunderstorm WarningOKXSuffolk41 min
Jul 21, 6:43 PM EDTSpecial Marine WarningOKX47 min
Jul 21, 6:45 PM EDTSpecial Weather StatementOKXOrange, Putnam60 min
Jul 21, 6:46 PM EDTSpecial Marine WarningOKX29 min
Jul 21, 7:03 PM EDTSpecial Weather StatementOKXSuffolk57 min
Jul 21, 7:06 PM EDTSevere Thunderstorm WarningOKXSuffolk24 min
Jul 21, 7:11 PM EDTSpecial Marine WarningOKX64 min
Jul 21, 7:34 PM EDTAreal Flood AdvisoryOKXOrange86 min
Jul 21, 7:35 PM EDTSpecial Weather StatementOKXPutnam55 min
Jul 21, 7:38 PM EDTSevere Thunderstorm WarningOKXSuffolk52 min
Jul 21, 7:46 PM EDTAreal Flood AdvisoryOKXSuffolk59 min
Jul 21, 7:55 PM EDTSpecial Weather StatementOKXBronx, Rockland, Westchester50 min
Jul 21, 7:56 PM EDTSpecial Marine WarningOKX64 min
Jul 21, 4:01 PM EDTTornado WarningOKXNaugatuck Valley Planning Region29 min
Jul 21, 4:16 PM EDTSpecial Weather StatementOKX59 min
Jul 21, 4:27 PM EDTSevere Thunderstorm WarningOKXLower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region48 min
Jul 21, 4:36 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region, Naugatuck Valley Planning Region39 min
Jul 21, 5:08 PM EDTSevere Thunderstorm WarningOKXLower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region52 min
Jul 21, 5:09 PM EDTAreal Flood AdvisoryOKXLower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region66 min
Jul 21, 5:23 PM EDTTornado WarningOKXGreater Bridgeport Planning Region37 min
Jul 21, 5:43 PM EDTAreal Flood AdvisoryOKXGreater Bridgeport Planning Region62 min
Jul 21, 6:20 PM EDTAreal Flood AdvisoryOKXLower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region115 min

Nearby

Special Weather Statements in New York, 2010Every special weather statement in 2010

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.