Alert archive / New York / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 70, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at Aug 19, 2019, 4:21 PM EDT for Kings County, Nassau County, Queens County, New York. It was in force for 17 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 19, 2019, 4:21 PM EDT (20:21 UTC)
- Expired
- Aug 19, 2019, 4:38 PM EDT
- In force
- 17 min
- Issued by
- NWS New York, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Kings County, NY, Nassau County, NY, Queens County, NY
The radar
The Brookhaven radar (KOKX), 81 km from the middle of the area, began a volume at 20:19 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, 8.4 hours before the alert went out and 81 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.
- Mixed-layer CAPE
- 1215 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 841 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 19, 1:34 PM EDT, 2 hours 47 minutes earlier.
Area forecast discussion, Aug 19, 1:34 PM EDT, 2 hours 47 minutes before
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</html>Hazardous weather outlook, Aug 19, 4:03 AM EDT, 12 hours 18 minutes before
Hazardous Weather Outlook National Weather Service New York NY 403 AM EDT Mon Aug 19 2019 CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078-080-176>179-200815- Northern Fairfield-Northern New Haven-Northern Middlesex- Northern New London-Southern Fairfield-Southern New Haven- Southern Middlesex-Southern New London-Western Passaic- Eastern Passaic-Hudson-Western Bergen-Eastern Bergen-Western Essex- Eastern Essex-Western Union-Eastern Union-Orange-Putnam-Rockland- Northern Westchester-Southern Westchester-New York (Manhattan)-Bronx- Richmond (Staten Island)-Kings (Brooklyn)-Northwestern Suffolk- Southwestern Suffolk-Northern Queens-Northern Nassau-Southern Queens- Southern Nassau- 403 AM EDT Mon Aug 19 2019 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southern Connecticut, northeast New Jersey and 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. Heat Advisory. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NYZ079-081-200815- Northeastern Suffolk-Southeastern Suffolk- 403 AM EDT Mon Aug 19 2019 This Hazardous Weather Outlook is for southeast New York. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ330-335-338-340-345-350-353-355-200815- 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- 403 AM EDT Mon Aug 19 2019 This Hazardous Weather Outlook is for Atlantic coastal waters. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Local storm report, Aug 19, 12:53 PM EDT, 3 hours 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
1253 PM EDT MON AUG 19 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0631 PM FLASH FLOOD UNION CITY 40.77N 74.03W
08/18/2019 HUDSON NJ SOCIAL MEDIA
1 FOOT OF FLOWING WATER SEEN IN VIDEO. WATER FLOWING
INTO BUILDING.
&&
JPLocal storm report, Aug 19, 12:54 PM EDT, 3 hours 27 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NEW YORK NY
1254 PM EDT MON AUG 19 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0516 PM HAIL LYNDHURST 40.80N 74.11W
08/18/2019 E1.00 INCH BERGEN NJ PUBLIC
0528 PM TSTM WND DMG RIDGEFIELD 40.83N 74.02W
08/18/2019 BERGEN NJ DEPT OF HIGHWAYS
TREE DOWN ON NJ3 SERVICE ROAD. TIME ESTIMATED FROM
RADAR.
0631 PM FLASH FLOOD UNION CITY 40.77N 74.03W
08/18/2019 HUDSON NJ SOCIAL MEDIA
1 FOOT OF FLOWING WATER SEEN IN VIDEO. WATER FLOWING
INTO BUILDING.
&&
JPSpecial weather statement, Aug 19, 2:39 PM EDT, 1 hour 42 minutes before
Special Weather Statement
National Weather Service New York NY
239 PM EDT Mon Aug 19 2019
NJZ002-103-NYZ067-069-191930-
Western Bergen-Western Passaic-Rockland-Orange-
239 PM EDT Mon Aug 19 2019
...A STRONG THUNDERSTORM WILL AFFECT PASSAIC...NORTHWESTERN BERGEN...
SOUTHEASTERN ORANGE AND ROCKLAND COUNTIES...
At 239 PM EDT, a strong thunderstorm was located near Hamburg, or
near West Milford, moving east at 25 mph.
Winds in excess of 40 mph are possible with this storm.
Locations impacted include...
West Milford, Monsey, Ramsey, Ringwood, Suffern, Sloatsburg,
Bloomingdale, Greenwood Lake, Upper Greenwood Lake, Spring Valley,
Oakland, Wanaque, Waldwick, Airmont and Upper Saddle River.
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.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 4106 7450 4107 7449 4109 7450 4120 7437
4124 7443 4131 7408 4106 7404 4107 7406
4104 7407 4101 7407 4102 7440 4103 7442
4102 7443 4104 7443 4105 7445 4105 7448
4104 7449 4104 7450
TIME...MOT...LOC 1839Z 266DEG 21KT 4112 7452
JCSpecial weather statement, Aug 19, 3:14 PM EDT, 1 hour 7 minutes before
Special Weather Statement National Weather Service New York NY 314 PM EDT Mon Aug 19 2019 NYZ067-069-192000- Rockland-Orange- 314 PM EDT Mon Aug 19 2019 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN ORANGE AND ROCKLAND COUNTIES... At 314 PM EDT, a strong thunderstorm was located near Greenwood Lake, or near Warwick, moving east at 15 mph. Winds in excess of 40 mph are possible with this storm. Locations impacted include... Monroe, Warwick, Chester, Greenwood Lake, Pomona, Florida, Harriman, Kiryas Joel, Woodbury, Wesley Hills, New Hempstead, Tuxedo Park, Highland Mills and Central Valley. 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. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. LAT...LON 4121 7437 4135 7438 4139 7406 4114 7405 TIME...MOT...LOC 1914Z 270DEG 13KT 4127 7428 FEB
Special weather statement, Aug 19, 4:03 PM EDT, 18 minutes before
Special Weather Statement
National Weather Service New York NY
403 PM EDT Mon Aug 19 2019
CTZ009-NYZ071-073-177-192045-
Southern Fairfield-Bronx-Southern Westchester-Northern Nassau-
403 PM EDT Mon Aug 19 2019
...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN FAIRFIELD...SOUTH
CENTRAL WESTCHESTER...BRONX AND NORTHERN NASSAU COUNTIES...
At 402 PM EDT, a strong thunderstorm was located over Scarsdale, or
near New Rochelle, moving east at 20 mph.
Winds in excess of 40 mph and pea size hail are possible with this
storm.
Locations impacted include...
Stamford, New Rochelle, White Plains, Port Chester, Glen Cove,
Syosset, Rye, Oyster Bay, Greenwich, Harrison, Darien, Scarsdale,
Woodbury, Bayville and Bronxville.
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.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 4085 7373 4086 7375 4087 7378 4088 7387
4103 7385 4106 7379 4105 7337 4099 7356
4100 7359 4089 7374 4088 7374 4086 7366
4092 7364 4093 7351 4090 7347 4080 7345
4081 7348
TIME...MOT...LOC 2002Z 278DEG 18KT 4096 7376
FEBSpecial weather statement, Aug 19, 4:17 PM EDT, 4 minutes before
Special Weather Statement
National Weather Service New York NY
417 PM EDT Mon Aug 19 2019
CTZ005-006-009-010-NYZ070-192100-
Northern Fairfield-Southern Fairfield-Northern New Haven-Southern New
Haven-Northern Westchester-
417 PM EDT Mon Aug 19 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN FAIRFIELD...
SOUTHWESTERN NEW HAVEN AND CENTRAL WESTCHESTER COUNTIES...
At 416 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Monroe to near Mount Kisco. Movement was
southeast at 25 mph.
Winds in excess of 40 mph and pea size hail are possible with these
storms.
Locations impacted include...
Bridgeport, New Haven, Stamford, Norwalk, Milford, Shelton, New
Canaan, Newtown, Fairfield, Greenwich, Stratford, Trumbull, Westport,
Ridgefield and Darien.
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.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 4125 7290 4125 7292 4124 7294 4120 7304
4120 7305 4119 7308 4111 7329 4112 7330
4109 7334 4104 7349 4116 7379 4143 7313
TIME...MOT...LOC 2016Z 248DEG 23KT 4137 7317 4114 7373
FEBThe office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 8:11 PM EDT | Special Weather Statement | OKX | Westchester | 49 min |
| Aug 19, 3:14 PM EDT | Special Weather Statement | OKX | Orange | 46 min |
| Aug 19, 3:53 PM EDT | Areal Flood Advisory | OKX | Orange, Rockland | 52 min |
| Aug 19, 4:03 PM EDT | Special Weather Statement | OKX | Bronx | 42 min |
| Aug 19, 4:17 PM EDT | Special Weather Statement | OKX | Westchester | 43 min |
| Aug 19, 4:22 PM EDT | Special Marine Warning | OKX | 38 min | |
| Aug 19, 4:25 PM EDT | Areal Flood Advisory | OKX | Kings, Queens | 17 min |
| Aug 19, 4:26 PM EDT | Special Marine Warning | OKX | 34 min | |
| Aug 19, 4:44 PM EDT | Special Marine Warning | OKX | 61 min | |
| Aug 19, 4:54 PM EDT | Special Marine Warning | OKX | 48 min | |
| Aug 19, 5:09 PM EDT | Areal Flood Advisory | OKX | Nassau, Suffolk | 66 min |
| Aug 19, 5:11 PM EDT | Special Weather Statement | OKX | Nassau | 49 min |
| Aug 19, 5:39 PM EDT | Severe Thunderstorm Warning | OKX | Nassau | 16 min |
| Aug 19, 5:42 PM EDT | Areal Flood Advisory | OKX | Nassau, Suffolk | 63 min |
| Aug 19, 5:48 PM EDT | Special Weather Statement | OKX | Nassau | 42 min |
| Aug 19, 6:16 PM EDT | Special Marine Warning | OKX | 29 min | |
| Aug 19, 6:45 PM EDT | Special Weather Statement | OKX | Suffolk | 30 min |
| Aug 19, 2:39 PM EDT | Special Weather Statement | OKX | Passaic | 51 min |
| Aug 19, 4:54 PM EDT | Special Weather Statement | OKX | 51 min | |
| Aug 19, 5:00 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 15 min |
| Aug 19, 5:45 PM EDT | Special Weather Statement | OKX | 45 min |
Nearby
Severe Thunderstorm Warnings in New York, 2019Every severe thunderstorm warning in 2019
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.