Alert archive / New York / Flash Flood Watches in 2018
Flash Flood Watch 4, NWS New York, NY
NWS New York, NY issued this flash flood watch at Jul 17, 2018, 3:38 AM EDT for 8 counties in New York; 5 counties in New Jersey; Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Connecticut. It took effect at Jul 17, 2018, 12:00 PM EDT. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jul 17, 2018, 3:38 AM EDT (07:38 UTC)
- In effect from
- Jul 17, 2018, 12:00 PM EDT
- Expired
- Jul 17, 2018, 4:26 PM EDT
- In force
- 4 hr
- Issued by
- NWS New York, NY
- Flood severity
- None
Counties Greater Bridgeport Planning Region, CT, Lower Connecticut River Valley Planning Region, CT, Naugatuck Valley Planning Region, CT, Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Passaic County, NJ, Union County, NJ, Bronx County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Westchester County, NY
The radar
The Brookhaven radar (KOKX), 80 km from the middle of the area, began a volume at 07:44 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
Albany, NY (KALY), launched 00:00Z, 7.6 hours before the alert went out and 196 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
- 962 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 1483 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
What forecasters said that day
The local office's own words before this flash flood watch 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 flash flood watch went out at Jul 17, 1:53 AM EDT, 1 hour 45 minutes earlier.
Area forecast discussion, Jul 17, 1:53 AM EDT, 1 hour 45 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Jul 16, 6:15 PM EDT, 9 hours 23 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 12:08 PM EDT | Special Weather Statement | OKX | Orange | 37 min |
| Jul 17, 12:23 PM EDT | Areal Flood Advisory | OKX | Orange | 76 min |
| Jul 17, 12:49 PM EDT | Special Weather Statement | OKX | Orange | 41 min |
| Jul 17, 1:31 PM EDT | Special Weather Statement | OKX | Rockland | 44 min |
| Jul 17, 1:54 PM EDT | Special Weather Statement | OKX | Rockland | 51 min |
| Jul 17, 2:25 PM EDT | Special Weather Statement | OKX | Putnam, Westchester | 50 min |
| Jul 17, 2:28 PM EDT | Special Weather Statement | OKX | Bronx, Westchester | 47 min |
| Jul 17, 2:35 PM EDT | Special Weather Statement | OKX | Bronx, New York | 25 min |
| Jul 17, 2:42 PM EDT | Areal Flood Advisory | OKX | Bronx, Kings, New York, Queens, Richmond, Westchester | 63 min |
| Jul 17, 2:52 PM EDT | Special Marine Warning | OKX | 53 min | |
| Jul 17, 3:05 PM EDT | Special Weather Statement | OKX | Kings | 40 min |
| Jul 17, 3:21 PM EDT | Special Marine Warning | OKX | 39 min | |
| Jul 17, 3:40 PM EDT | Areal Flood Advisory | OKX | Nassau, Suffolk | 65 min |
| Jul 17, 3:48 PM EDT | Special Marine Warning | OKX | 42 min | |
| Jul 17, 1:58 PM EDT | Areal Flood Advisory | OKX | Bergen, Passaic | 37 min |
| Jul 17, 2:48 PM EDT | Areal Flood Advisory | OKX | Greater Bridgeport Planning Region, Naugatuck Valley Planning Region | 57 min |
| Jul 17, 2:56 PM EDT | Special Weather Statement | OKX | 34 min | |
| Jul 17, 3:23 PM EDT | Special Weather Statement | OKX | 37 min | |
| Jul 17, 3:37 PM EDT | Special Weather Statement | OKX | 23 min |
Nearby
Flash Flood Watches in New York, 2018Flash Flood Watches in New Jersey, 2018Flash Flood Watches in Connecticut, 2018Every flash flood watch 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.