Tornado Watch 8:00 PM Tornado Watch 8:00 PM

Ulster County, New York, United States

Last updated: 6:27 PM CDT  ·  Refresh
21°C
Feels like 23°
Overcast
▲ 22°  /  ▼ 16°
Wind
4 mph SSW
Humidity
97%
Dew Point
20°
Pressure
28.76 inHg
Visibility
7 mi
UV Index
0.8
Cloud Cover
97%
Sunrise
5:40 AM
Sunset
8:26 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Ulster County is currently overcast at 20°C. Precipitation is likely — peak probability 75% around 9 PM. Atmospheric instability is elevated (CAPE up to 620 J/kg) — isolated convective development possible. Sunrise: 5:40AM · Sunset: 8:26PM.

Alerts

Tornado Watch
Expires 8:00 PM
Tornado Watch
Expires 8:00 PM
79 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
72%
8 PM
21°
74%
9 PM
20°
74%
10 PM
20°
72%
11 PM
20°
65%
12 AM
19°
64%
1 AM
19°
54%
2 AM
19°
63%
3 AM
19°
51%
4 AM
19°
24%
5 AM
18°
25%
6 AM
18°
26%
7 AM
19°
22%
8 AM
19°
12%
9 AM
21°
13%
10 AM
21°
9%
11 AM
22°
7%
12 PM
22°
10%
1 PM
23°
8%
2 PM
25°
8%
3 PM
24°
8%
4 PM
24°
5%
5 PM
24°
5%
6 PM
23°
5%
7-Day Forecast
Tonight
22° 16°
Overcast with a 72% chance of rain.
Wed
25° 14°
Mostly Clear with a 54% chance of rain.
Thu
25° 12°
Mostly Clear.
Fri
25° 13°
Clear.
Sat
26° 14°
Mostly Clear.
Sun
26° 14°
Rain, 71% chance.
Mon
26° 14°
Drizzle, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 21° Overcast 72% 4 mph SSW 97%
8 PM 21° Overcast 74% 5 mph SW 96%
9 PM 20° Overcast 74% 5 mph SSW 96%
10 PM 20° Overcast 72% 6 mph SSW 96%
11 PM 20° Overcast 65% 6 mph SSW 97%
12 AM 19° Overcast 64% 6 mph SSW 97%
1 AM 19° Mostly Cloudy 54% 6 mph SW 96%
2 AM 19° Mostly Cloudy 63% 6 mph SW 95%
3 AM 19° Mostly Cloudy 51% 6 mph SW 94%
4 AM 19° Mostly Cloudy 24% 7 mph SW 93%
5 AM 18° Mostly Cloudy 25% 7 mph SW 92%
6 AM 18° Partly Cloudy 26% 7 mph SW 89%
7 AM 19° Partly Cloudy 22% 7 mph WSW 86%
8 AM 19° Mostly Clear 12% 7 mph WSW 81%
9 AM 21° Mostly Clear 13% 7 mph WSW 76%
10 AM 21° Mostly Clear 9% 8 mph WSW 71%
11 AM 22° Mostly Clear 7% 8 mph W 66%
12 PM 22° Mostly Clear 10% 9 mph W 61%
1 PM 23° Clear 8% 10 mph W 56%
2 PM 25° Clear 8% 10 mph W 53%
3 PM 24° Clear 8% 10 mph W 52%
4 PM 24° Clear 5% 9 mph W 52%
5 PM 24° Mostly Clear 5% 9 mph W 53%
6 PM 23° Mostly Clear 5% 8 mph W 56%
15-Day Forecast
Today
7/21
Overcast
72%
16°
22°
Wed
7/22
Mostly Clear
54%
14°
25°
Thu
7/23
Mostly Clear
3%
12°
25°
Fri
7/24
Clear
3%
13°
25°
Sat
7/25
Mostly Clear
8%
14°
26°
Sun
7/26
Rain
71%
14°
26°
Mon
7/27
Drizzle
60%
14°
26°
Tue
7/28
Drizzle
63%
13°
24°
Wed
7/29
Drizzle
68%
13°
24°
Thu
7/30
Drizzle
68%
13°
25°
Fri
7/31
Drizzle
64%
15°
24°
Sat
8/1
Drizzle
60%
14°
24°
Sun
8/2
Drizzle
60%
14°
25°
Mon
8/3
Drizzle
60%
16°
24°
Tue
8/4
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
Wed 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 Tue Jul 21, 22:00'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
SBCAPE240 J/kg
MLCAPE438 J/kg
MUCAPE506 J/kg
SBCIN-27 J/kg
MLCIN0 J/kg
Lifted Index-1.0
Kinematics
0–6 km Shear39 kt
0–1 km Shear18 kt
Eff. Shear37 kt
0–1 km SRH-37
0–3 km SRH-121
Eff. SRH-121
Storm Motion206° @ 36 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index38.1
Thermo & Levels
PWAT1.95 in
0–3 km LR5.2 °C/km
700–500 LR5.0 °C/km
Total Totals46.1
LCL968 hPa
LFC822 hPa
EL370 hPa
Freezing Lvl13,182 ft