Flash Flood Warning — Ulster County, NY 12:00 AM

Ulster County, New York, United States

Last updated: 11:49 PM CDT  ·  Refresh
19°C
Feels like 21°
Overcast
▲ 24°  /  ▼ 11°
Wind
5 mph SW
Humidity
96%
Dew Point
19°
Pressure
28.68 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
99%
Sunrise
5:41 AM
Sunset
8:25 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Ulster County is currently overcast at 20°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 762 J/kg) — isolated convective development possible. Sunrise: 5:41AM · Sunset: 8:25PM.

Alerts

Flash Flood Warning
Ulster County, NY
Expires 12:00 AM
79 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
23%
1 AM
19°
17%
2 AM
19°
19%
3 AM
19°
18%
4 AM
19°
19%
5 AM
18°
19%
6 AM
18°
12%
7 AM
19°
8%
8 AM
21°
8%
9 AM
22°
15%
10 AM
22°
19%
11 AM
22°
19%
12 PM
22°
6%
1 PM
23°
7%
2 PM
23°
7%
3 PM
23°
7%
4 PM
23°
7%
5 PM
23°
7%
6 PM
22°
3%
7 PM
21°
3%
8 PM
21°
3%
9 PM
18°
3%
10 PM
18°
3%
11 PM
17°
3%
7-Day Forecast
Today
24° 11°
Mostly Clear with a 23% chance of rain.
Thu
26° 11°
Mostly Clear.
Fri
27° 12°
Mostly Clear.
Sat
26° 13°
Clear.
Sun
26° 13°
Rain, 70% chance.
Mon
29° 16°
Rain, 71% chance.
Tue
23° 15°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 19° Overcast 23% 5 mph SW 96%
1 AM 19° Overcast 17% 7 mph SW 96%
2 AM 19° Mostly Cloudy 19% 7 mph SSW 95%
3 AM 19° Mostly Cloudy 18% 7 mph SW 95%
4 AM 19° Mostly Cloudy 19% 7 mph SW 94%
5 AM 18° Partly Cloudy 19% 7 mph SW 92%
6 AM 18° Partly Cloudy 12% 7 mph SW 89%
7 AM 19° Mostly Clear 8% 7 mph WSW 85%
8 AM 21° Mostly Clear 8% 8 mph WSW 78%
9 AM 22° Mostly Clear 15% 9 mph WSW 72%
10 AM 22° Mostly Clear 19% 9 mph W 65%
11 AM 22° Mostly Clear 19% 10 mph W 61%
12 PM 22° Mostly Clear 6% 11 mph W 59%
1 PM 23° Partly Cloudy 7% 11 mph W 57%
2 PM 23° Mostly Clear 7% 10 mph W 54%
3 PM 23° Mostly Clear 7% 10 mph W 52%
4 PM 23° Clear 7% 10 mph W 50%
5 PM 23° Clear 7% 10 mph W 53%
6 PM 22° Clear 3% 8 mph W 56%
7 PM 21° Clear 3% 7 mph WNW 60%
8 PM 21° Clear 3% 7 mph WNW 63%
9 PM 18° Mostly Clear 3% 6 mph WNW 67%
10 PM 18° Mostly Clear 3% 6 mph WNW 71%
11 PM 17° Mostly Clear 3% 6 mph WNW 74%
15-Day Forecast
Today
7/22
Mostly Clear
23%
11°
24°
Thu
7/23
Mostly Clear
3%
11°
26°
Fri
7/24
Mostly Clear
3%
12°
27°
Sat
7/25
Clear
3%
13°
26°
Sun
7/26
Rain
70%
13°
26°
Mon
7/27
Rain
71%
16°
29°
Tue
7/28
Rain
63%
15°
23°
Wed
7/29
Rain
69%
13°
24°
Thu
7/30
Drizzle
44%
13°
26°
Fri
7/31
Drizzle
51%
13°
29°
Sat
8/1
Drizzle
60%
14°
29°
Sun
8/2
Drizzle
60%
14°
25°
Mon
8/3
Drizzle
60%
16°
26°
Tue
8/4
Drizzle
60%
16°
26°
Wed
8/5
Drizzle
60%
16°
26°
79
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
79 AQI 23.9 µg/m³
O3
Ground-level ozone
40 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 79 Moderate 40 79
Thu 31 Good 29 31
Fri 31 Good 31 24
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, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE12 J/kg
MLCAPE104 J/kg
MUCAPE210 J/kg
SBCIN-59 J/kg
MLCIN0 J/kg
Lifted Index1.0
Kinematics
0–6 km Shear40 kt
0–1 km Shear27 kt
Eff. Shear17 kt
0–1 km SRH-40
0–3 km SRH-31
Eff. SRH-17
Storm Motion216° @ 35 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.9
Thermo & Levels
PWAT1.53 in
0–3 km LR4.8 °C/km
700–500 LR5.1 °C/km
Total Totals43.7
LCL962 hPa
LFC713 hPa
EL563 hPa
Freezing Lvl13,176 ft