Heat Advisory — Inland Kenedy, TX, Starr, TX, Southern Hidalgo, TX, Inland Willacy, TX, Inland Cameron, TX, Coastal Kenedy, TX, Northern Hidalgo, TX, Coastal Willacy, TX, Coastal Cameron, TX 7:00 PM

Port Isabel, Texas

Last updated: 5:54 PM CDT  ·  Refresh
30°C
Feels like 38°
Mostly Clear
▲ 33°  /  ▼ 28°
Wind
15 mph SE
Humidity
81%
Dew Point
26°
Pressure
29.91 inHg
Visibility
10 mi
UV Index
5.0
Cloud Cover
28%
Sunrise
7:13 AM
Sunset
7:35 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Port Isabel is currently mostly clear at 30°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4368 J/kg) — isolated convective development possible. Sunrise: 7:13AM · Sunset: 7:35PM.

Alerts

Heat Advisory
Inland Kenedy, TX, Starr, TX, Southern Hidalgo, TX, Inland Willacy, TX, Inland Cameron, TX, Coastal Kenedy, TX, Northern Hidalgo, TX, Coastal Willacy, TX, Coastal Cameron, TX
Expires 7:00 PM
41 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
7%
6 PM
31°
25%
7 PM
31°
25%
8 PM
30°
25%
9 PM
29°
23%
10 PM
29°
18%
11 PM
29°
22%
12 AM
29°
13%
1 AM
28°
9%
2 AM
28°
6%
3 AM
28°
13%
4 AM
28°
23%
5 AM
28°
22%
6 AM
28°
9%
7 AM
28°
10%
8 AM
29°
10%
9 AM
31°
10%
10 AM
32°
5%
11 AM
32°
18%
12 PM
32°
16%
1 PM
33°
16%
2 PM
33°
9%
3 PM
33°
9%
4 PM
32°
9%
7-Day Forecast
Today
33° 28°
Mostly Clear with a 25% chance of rain.
Mon
34° 28°
Partly Cloudy with a 22% chance of rain.
Tue
34° 27°
Partly Cloudy.
Wed
33° 27°
Partly Cloudy with a 56% chance of rain.
Thu
33° 27°
Thunderstorm, 64% chance.
Fri
33° 26°
Partly Cloudy with a 60% chance of rain.
Sat
33° 26°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 30° Mostly Clear 7% 15 mph SE 81%
6 PM 31° Partly Cloudy 25% 14 mph SE 81%
7 PM 31° Partly Cloudy 25% 13 mph SE 84%
8 PM 30° Mostly Cloudy 25% 13 mph SE 86%
9 PM 29° Mostly Cloudy 23% 13 mph SE 88%
10 PM 29° Partly Cloudy 18% 13 mph SE 88%
11 PM 29° Mostly Cloudy 22% 13 mph SE 89%
12 AM 29° Mostly Cloudy 13% 13 mph SE 89%
1 AM 28° Mostly Cloudy 9% 13 mph SE 89%
2 AM 28° Mostly Cloudy 6% 12 mph SE 90%
3 AM 28° Mostly Cloudy 13% 11 mph SE 90%
4 AM 28° Mostly Cloudy 23% 11 mph SE 89%
5 AM 28° Mostly Cloudy 22% 11 mph SSE 88%
6 AM 28° Mostly Cloudy 9% 11 mph SE 86%
7 AM 28° Mostly Cloudy 10% 12 mph SSE 84%
8 AM 29° Partly Cloudy 10% 12 mph SSE 81%
9 AM 31° Partly Cloudy 10% 12 mph SSE 77%
10 AM 32° Partly Cloudy 5% 13 mph SE 75%
11 AM 32° Mostly Cloudy 18% 14 mph SE 73%
12 PM 32° Mostly Cloudy 16% 15 mph SE 71%
1 PM 33° Mostly Cloudy 16% 15 mph SE 72%
2 PM 33° Mostly Cloudy 9% 15 mph SE 73%
3 PM 33° Mostly Cloudy 9% 15 mph SE 75%
4 PM 32° Partly Cloudy 9% 15 mph SE 76%
15-Day Forecast
Today
9/13
Mostly Clear
25%
28°
33°
Mon
9/14
Partly Cloudy
22%
28°
34°
Tue
9/15
Partly Cloudy
7%
27°
34°
Wed
9/16
Partly Cloudy
56%
27°
33°
Thu
9/17
Thunderstorm
64%
27°
33°
Fri
9/18
Partly Cloudy
60%
26°
33°
Sat
9/19
Mostly Clear
15%
26°
33°
Sun
9/20
Partly Cloudy
60%
26°
34°
Mon
9/21
Drizzle
60%
27°
33°
Tue
9/22
Clear
60%
27°
33°
Wed
9/23
Drizzle
60%
27°
33°
Thu
9/24
Drizzle
60%
27°
33°
Fri
9/25
Drizzle
60%
27°
33°
Sat
9/26
Drizzle
60%
26°
32°
Sun
9/27
Drizzle
60%
26°
33°
41
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
41 AQI 7.3 µg/m³
O3
Ground-level ozone
24 AQI 26 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 41 Good 24 41
Tue 48 Good 23 48
Wed 79 Moderate 24 79
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 Sun Sep 13, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE4504 J/kg
MLCAPE3214 J/kg
MUCAPE4734 J/kg
SBCIN-9 J/kg
MLCIN-34 J/kg
Lifted Index-8.9
Kinematics
0–6 km Shear12 kt
0–1 km Shear4 kt
Eff. Shear13 kt
0–1 km SRH-10
0–3 km SRH8
Eff. SRH8
Storm Motion77° @ 15 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index22.2
Thermo & Levels
PWAT1.81 in
0–3 km LR5.9 °C/km
700–500 LR6.4 °C/km
Total Totals44.1
LCL956 hPa
LFC930 hPa
EL130 hPa
Freezing Lvl15,761 ft