Flash Flood Warning — Kent County, DE, New Castle County, DE 10:00 PM Areal Flood Watch 1:00 AM

New Castle County, Delaware, United States

Last updated: 9:29 PM CDT  ·  Refresh
23°C
Feels like 25°
Thunderstorm
▲ 28°  /  ▼ 21°
Wind
7 mph SSW
Humidity
94%
Dew Point
22°
Pressure
29.66 inHg
Visibility
5 mi
UV Index
0.0
Cloud Cover
97%
Sunrise
5:52 AM
Sunset
8:25 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: New Castle County is currently thunderstorm at 23°C. Precipitation is likely — peak probability 82% around 12 AM. Atmospheric instability is elevated (CAPE up to 1269 J/kg) — isolated convective development possible. Sunrise: 5:52AM · Sunset: 8:25PM.

Alerts

Flash Flood Warning
Kent County, DE, New Castle County, DE
Expires 10:00 PM
Areal Flood Watch
Expires 1:00 AM
65 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
75%
11 PM
23°
81%
12 AM
23°
81%
1 AM
22°
61%
2 AM
22°
41%
3 AM
22°
42%
4 AM
22°
39%
5 AM
21°
43%
6 AM
22°
43%
7 AM
23°
49%
8 AM
23°
58%
9 AM
24°
49%
10 AM
26°
46%
11 AM
26°
37%
12 PM
27°
33%
1 PM
28°
37%
2 PM
28°
30%
3 PM
28°
20%
4 PM
28°
20%
5 PM
27°
18%
6 PM
27°
19%
7 PM
26°
19%
8 PM
25°
19%
9 PM
24°
19%
7-Day Forecast
Tonight
28° 21°
Thunderstorm, 75% chance.
Wed
29° 20°
Mostly Clear with a 61% chance of rain.
Thu
28° 18°
Mostly Clear.
Fri
28° 17°
Partly Cloudy with a 32% chance of rain.
Sat
29° 17°
Drizzle, 42% chance.
Sun
30° 17°
Rain, 70% chance.
Mon
31° 18°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Thunderstorm 75% 7 mph SSW 94%
11 PM 23° Rain 81% 10 mph SSW 95%
12 AM 23° Mostly Cloudy 81% 10 mph SSW 95%
1 AM 22° Mostly Cloudy 61% 11 mph SW 95%
2 AM 22° Overcast 41% 9 mph SSW 95%
3 AM 22° Mostly Cloudy 42% 9 mph SSW 96%
4 AM 22° Mostly Cloudy 39% 9 mph SSW 96%
5 AM 21° Partly Cloudy 43% 10 mph SW 95%
6 AM 22° Mostly Cloudy 43% 9 mph SW 93%
7 AM 23° Partly Cloudy 49% 10 mph SW 91%
8 AM 23° Partly Cloudy 58% 10 mph WSW 87%
9 AM 24° Mostly Clear 49% 10 mph WSW 81%
10 AM 26° Mostly Clear 46% 10 mph W 74%
11 AM 26° Mostly Clear 37% 10 mph W 69%
12 PM 27° Mostly Clear 33% 10 mph W 66%
1 PM 28° Mostly Clear 37% 9 mph W 63%
2 PM 28° Mostly Clear 30% 9 mph W 60%
3 PM 28° Mostly Clear 20% 9 mph W 59%
4 PM 28° Mostly Clear 20% 9 mph W 58%
5 PM 27° Mostly Clear 18% 8 mph W 59%
6 PM 27° Mostly Clear 19% 8 mph WNW 63%
7 PM 26° Mostly Clear 19% 7 mph WNW 66%
8 PM 25° Mostly Clear 19% 7 mph WNW 66%
9 PM 24° Mostly Clear 19% 7 mph NW 64%
15-Day Forecast
Today
7/21
Thunderstorm
75%
21°
28°
Wed
7/22
Mostly Clear
61%
20°
29°
Thu
7/23
Mostly Clear
11%
18°
28°
Fri
7/24
Partly Cloudy
32%
17°
28°
Sat
7/25
Drizzle
42%
17°
29°
Sun
7/26
Rain
70%
17°
30°
Mon
7/27
Rain
71%
18°
31°
Tue
7/28
Drizzle
63%
19°
30°
Wed
7/29
Rain
69%
18°
29°
Thu
7/30
Drizzle
44%
18°
29°
Fri
7/31
Drizzle
60%
18°
29°
Sat
8/1
Drizzle
60%
18°
29°
Sun
8/2
Drizzle
60%
19°
29°
Mon
8/3
Drizzle
60%
19°
31°
Tue
8/4
Drizzle
60%
20°
31°
65
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
65 AQI 16.6 µg/m³
O3
Ground-level ozone
38 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 65 Moderate 38 65
Thu 45 Good 42 45
Fri 49 Good 49 45
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 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE355 J/kg
MLCAPE389 J/kg
MUCAPE446 J/kg
SBCIN-105 J/kg
MLCIN0 J/kg
Lifted Index-2.2
Kinematics
0–6 km Shear31 kt
0–1 km Shear27 kt
Eff. Shear32 kt
0–1 km SRH72
0–3 km SRH11
Eff. SRH11
Storm Motion219° @ 35 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.2
STP (eff)0.0
Supercell0.1
K-Index34.3
Thermo & Levels
PWAT2.10 in
0–3 km LR4.7 °C/km
700–500 LR5.9 °C/km
Total Totals45.5
LCL990 hPa
LFC730 hPa
EL317 hPa
Freezing Lvl14,357 ft