Flood Warning — Collin County, TX 1:00 AM

Collin County, Texas, United States

Last updated: 11:43 PM CDT  ·  Refresh
27°C
Feels like 29°
Mostly Cloudy
▲ 32°  /  ▼ 23°
Wind
9 mph SE
Humidity
77%
Dew Point
23°
Pressure
29.40 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
71%
Sunrise
6:18 AM
Sunset
8:39 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Collin County is currently mostly cloudy at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2604 J/kg) — isolated convective development possible. Sunrise: 6:18AM · Sunset: 8:39PM.

Alerts

Flood Warning
Collin County, TX
Expires 1:00 AM
49 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
8%
12 AM
27°
19%
1 AM
27°
12%
2 AM
26°
12%
3 AM
26°
12%
4 AM
26°
20%
5 AM
23°
20%
6 AM
24°
13%
7 AM
25°
13%
8 AM
26°
13%
9 AM
29°
13%
10 AM
30°
5%
11 AM
31°
5%
12 PM
32°
5%
1 PM
33°
5%
2 PM
34°
5%
3 PM
34°
5%
4 PM
34°
3%
5 PM
34°
3%
6 PM
33°
3%
7 PM
33°
5%
8 PM
32°
5%
9 PM
31°
9%
10 PM
31°
9%
7-Day Forecast
Tonight
32° 23°
Mostly Cloudy.
Wed
37° 23°
Mostly Clear with a 20% chance of rain.
Thu
36° 23°
Clear.
Fri
31° 22°
Mostly Cloudy.
Sat
33° 22°
Mostly Cloudy.
Sun
33° 22°
Clear.
Mon
34° 23°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Cloudy 8% 9 mph SE 77%
12 AM 27° Overcast 19% 11 mph SSE 74%
1 AM 27° Overcast 12% 10 mph SSE 78%
2 AM 26° Mostly Cloudy 12% 8 mph SSE 82%
3 AM 26° Partly Cloudy 12% 6 mph SSE 86%
4 AM 26° Mostly Cloudy 20% 6 mph SSE 88%
5 AM 23° Partly Cloudy 20% 6 mph SSE 88%
6 AM 24° Partly Cloudy 13% 6 mph S 88%
7 AM 25° Partly Cloudy 13% 7 mph S 84%
8 AM 26° Partly Cloudy 13% 9 mph SSW 79%
9 AM 29° Mostly Cloudy 13% 9 mph SW 73%
10 AM 30° Partly Cloudy 5% 9 mph SW 67%
11 AM 31° Partly Cloudy 5% 8 mph SSW 62%
12 PM 32° Partly Cloudy 5% 8 mph SSW 56%
1 PM 33° Partly Cloudy 5% 9 mph S 52%
2 PM 34° Mostly Clear 5% 11 mph S 48%
3 PM 34° Clear 5% 12 mph S 44%
4 PM 34° Clear 3% 12 mph S 44%
5 PM 34° Clear 3% 11 mph S 46%
6 PM 33° Clear 3% 11 mph S 48%
7 PM 33° Clear 5% 12 mph S 50%
8 PM 32° Clear 5% 12 mph S 53%
9 PM 31° Clear 9% 13 mph S 56%
10 PM 31° Mostly Clear 9% 13 mph S 59%
15-Day Forecast
Today
6/23
Mostly Cloudy
8%
23°
32°
Wed
6/24
Mostly Clear
20%
23°
37°
Thu
6/25
Clear
12%
23°
36°
Fri
6/26
Mostly Cloudy
3%
22°
31°
Sat
6/27
Mostly Cloudy
6%
22°
33°
Sun
6/28
Clear
6%
22°
33°
Mon
6/29
Clear
6%
23°
34°
Tue
6/30
Clear
11%
23°
34°
Wed
7/1
Rain
67%
23°
33°
Thu
7/2
Clear
25%
22°
33°
Fri
7/3
Drizzle
38%
24°
36°
Sat
7/4
Drizzle
60%
26°
36°
Sun
7/5
Clear
60%
26°
36°
Mon
7/6
Drizzle
60%
26°
36°
Tue
7/7
Clear
60%
26°
36°
49
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
49 AQI 8.9 µg/m³
O3
Ground-level ozone
40 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 49 Good 40 49
Thu 59 Moderate 42 59
Fri 62 Moderate 35 62
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 Jun 24, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2071 J/kg
MLCAPE2078 J/kg
MUCAPE2654 J/kg
SBCIN-258 J/kg
MLCIN0 J/kg
Lifted Index-6.2
Kinematics
0–6 km Shear39 kt
0–1 km Shear21 kt
Eff. Shear50 kt
0–1 km SRH202
0–3 km SRH154
Eff. SRH49
Storm Motion275° @ 24 kt
0–1 km EHI2.6
Composite Parameters
Sig. Tornado2.9
STP (eff)0.0
Supercell3.4
K-Index33.5
Thermo & Levels
PWAT1.81 in
0–3 km LR4.7 °C/km
700–500 LR7.3 °C/km
Total Totals52.5
LCL943 hPa
LFC692 hPa
EL161 hPa
Freezing Lvl14,987 ft