Areal Flood Watch 1:00 AM Areal Flood Warning — Bronx County, NY, Westchester County, NY 6:15 AM

Westchester County, New York, United States

Last updated: 9:34 PM CDT  ·  Refresh
22°C
Feels like 24°
Overcast
▲ 24°  /  ▼ 17°
Wind
6 mph S
Humidity
95%
Dew Point
21°
Pressure
29.22 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
91%
Sunrise
5:40 AM
Sunset
8:22 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Westchester County is currently overcast at 22°C. Precipitation is likely — peak probability 55% around 2 AM. Atmospheric instability is elevated (CAPE up to 1068 J/kg) — isolated convective development possible. Sunrise: 5:40AM · Sunset: 8:22PM.

Alerts

Areal Flood Watch
Expires 1:00 AM
Areal Flood Warning
Bronx County, NY, Westchester County, NY
Expires 6:15 AM
66 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
30%
11 PM
22°
26%
12 AM
22°
27%
1 AM
22°
45%
2 AM
22°
54%
3 AM
22°
39%
4 AM
22°
35%
5 AM
20°
35%
6 AM
20°
40%
7 AM
21°
33%
8 AM
21°
37%
9 AM
22°
37%
10 AM
23°
35%
11 AM
24°
35%
12 PM
25°
22%
1 PM
26°
22%
2 PM
26°
30%
3 PM
26°
20%
4 PM
26°
20%
5 PM
27°
9%
6 PM
26°
9%
7 PM
24°
3%
8 PM
23°
3%
9 PM
22°
3%
7-Day Forecast
Tonight
24° 17°
Overcast with a 30% chance of rain.
Wed
27° 17°
Rain, 45% chance.
Thu
27° 14°
Mostly Clear.
Fri
28° 13°
Mostly Clear.
Sat
26° 16°
Clear.
Sun
27° 16°
Rain, 70% chance.
Mon
29° 19°
Drizzle, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 22° Overcast 30% 6 mph S 95%
11 PM 22° Overcast 26% 8 mph S 94%
12 AM 22° Overcast 27% 8 mph SSW 94%
1 AM 22° Overcast 45% 8 mph SSW 94%
2 AM 22° Overcast 54% 8 mph SSW 95%
3 AM 22° Mostly Cloudy 39% 8 mph SSW 96%
4 AM 22° Mostly Cloudy 35% 7 mph SSW 96%
5 AM 20° Mostly Cloudy 35% 8 mph SSW 94%
6 AM 20° Partly Cloudy 40% 7 mph SSW 92%
7 AM 21° Partly Cloudy 33% 7 mph SW 90%
8 AM 21° Partly Cloudy 37% 7 mph SW 86%
9 AM 22° Partly Cloudy 37% 7 mph WSW 81%
10 AM 23° Rain 35% 8 mph WSW 74%
11 AM 24° Rain 35% 8 mph W 68%
12 PM 25° Mostly Clear 22% 9 mph W 62%
1 PM 26° Mostly Clear 22% 10 mph W 58%
2 PM 26° Mostly Clear 30% 10 mph W 56%
3 PM 26° Mostly Clear 20% 9 mph W 54%
4 PM 26° Mostly Clear 20% 9 mph W 52%
5 PM 27° Partly Cloudy 9% 8 mph WNW 53%
6 PM 26° Partly Cloudy 9% 8 mph WNW 56%
7 PM 24° Partly Cloudy 3% 8 mph WNW 58%
8 PM 23° Partly Cloudy 3% 8 mph WNW 60%
9 PM 22° Partly Cloudy 3% 7 mph WNW 60%
15-Day Forecast
Today
7/21
Overcast
30%
17°
24°
Wed
7/22
Rain
45%
17°
27°
Thu
7/23
Mostly Clear
3%
14°
27°
Fri
7/24
Mostly Clear
3%
13°
28°
Sat
7/25
Clear
8%
16°
26°
Sun
7/26
Rain
70%
16°
27°
Mon
7/27
Drizzle
71%
19°
29°
Tue
7/28
Rain
63%
19°
26°
Wed
7/29
Rain
69%
17°
26°
Thu
7/30
Drizzle
44%
17°
27°
Fri
7/31
Drizzle
36%
17°
30°
Sat
8/1
Drizzle
60%
19°
29°
Sun
8/2
Drizzle
60%
19°
27°
Mon
8/3
Drizzle
60%
20°
28°
Tue
8/4
Drizzle
60%
21°
28°
66
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
66 AQI 16.9 µg/m³
O3
Ground-level ozone
44 AQI 47 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 66 Moderate 44 66
Thu 36 Good 36 22
Fri 38 Good 38 32
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Wed Jul 22, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE401 J/kg
MLCAPE408 J/kg
MUCAPE496 J/kg
SBCIN-39 J/kg
MLCIN0 J/kg
Lifted Index-1.8
Kinematics
0–6 km Shear40 kt
0–1 km Shear23 kt
Eff. Shear32 kt
0–1 km SRH-46
0–3 km SRH-54
Eff. SRH-54
Storm Motion212° @ 40 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.0
Thermo & Levels
PWAT1.96 in
0–3 km LR5.1 °C/km
700–500 LR5.4 °C/km
Total Totals46.2
LCL978 hPa
LFC810 hPa
EL354 hPa
Freezing Lvl13,573 ft