Severe Thunderstorm Watch 8:00 PM

La Crosse, Virginia

Last updated: 5:20 PM CDT  ·  Refresh
26°C
Feels like 28°
Overcast
▲ 26°  /  ▼ 19°
Wind
5 mph ESE
Humidity
75%
Dew Point
21°
Pressure
29.60 inHg
Visibility
10 mi
UV Index
1.9
Cloud Cover
90%
Sunrise
6:34 AM
Sunset
7:55 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: La Crosse is currently overcast at 26°C. Precipitation is likely — peak probability 88% around 9 PM. Atmospheric instability is elevated (CAPE up to 1092 J/kg) — isolated convective development possible. Sunrise: 6:34AM · Sunset: 7:55PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
42 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
63%
7 PM
25°
69%
8 PM
24°
73%
9 PM
23°
87%
10 PM
22°
82%
11 PM
21°
72%
12 AM
21°
72%
1 AM
22°
59%
2 AM
22°
54%
3 AM
22°
54%
4 AM
21°
54%
5 AM
19°
50%
6 AM
19°
53%
7 AM
20°
53%
8 AM
20°
53%
9 AM
22°
54%
10 AM
23°
49%
11 AM
23°
55%
12 PM
24°
55%
1 PM
28°
55%
2 PM
28°
57%
3 PM
28°
53%
4 PM
28°
58%
5 PM
27°
58%
7-Day Forecast
Tonight
26° 19°
Overcast with a 87% chance of rain.
Sat
30° 19°
Rain, 72% chance.
Sun
32° 19°
Clear with a 39% chance of rain.
Mon
32° 17°
Mostly Clear with a 33% chance of rain.
Tue
31° 16°
Partly Cloudy with a 37% chance of rain.
Wed
32° 17°
Rain, 69% chance.
Thu
32° 20°
Rain, 80% chance.
TimeTempConditionsPrecipWindHumidity
Now 26° Overcast 63% 5 mph ESE 75%
7 PM 25° Overcast 69% 8 mph SSE 86%
8 PM 24° Overcast 73% 9 mph S 94%
9 PM 23° Overcast 87% 6 mph SSE 96%
10 PM 22° Heavy Rain 82% 4 mph SSE 97%
11 PM 21° Heavy Rain 72% 3 mph SE 97%
12 AM 21° Overcast 72% 2 mph ESE 97%
1 AM 22° Overcast 59% 2 mph ESE 97%
2 AM 22° Mostly Cloudy 54% 3 mph ESE 97%
3 AM 22° Mostly Cloudy 54% 3 mph ESE 97%
4 AM 21° Overcast 54% 3 mph ESE 97%
5 AM 19° Overcast 50% 3 mph SE 97%
6 AM 19° Mostly Cloudy 53% 3 mph SE 96%
7 AM 20° Mostly Cloudy 53% 4 mph SSE 96%
8 AM 20° Mostly Cloudy 53% 4 mph SSE 94%
9 AM 22° Mostly Cloudy 54% 4 mph S 91%
10 AM 23° Mostly Cloudy 49% 3 mph S 88%
11 AM 23° Mostly Cloudy 55% 3 mph SSW 83%
12 PM 24° Mostly Cloudy 55% 4 mph SSW 77%
1 PM 28° Mostly Cloudy 55% 4 mph SSW 71%
2 PM 28° Mostly Cloudy 57% 4 mph SSW 68%
3 PM 28° Drizzle 53% 4 mph SSW 70%
4 PM 28° Rain 58% 4 mph SSW 72%
5 PM 27° Rain 58% 3 mph SSW 74%
15-Day Forecast
Today
8/21
Overcast
87%
19°
26°
Sat
8/22
Rain
72%
19°
30°
Sun
8/23
Clear
39%
19°
32°
Mon
8/24
Mostly Clear
33%
17°
32°
Tue
8/25
Partly Cloudy
37%
16°
31°
Wed
8/26
Rain
69%
17°
32°
Thu
8/27
Rain
80%
20°
32°
Fri
8/28
Drizzle
57%
19°
33°
Sat
8/29
Drizzle
47%
21°
31°
Sun
8/30
Rain
72%
19°
34°
Mon
8/31
Drizzle
60%
19°
34°
Tue
9/1
Drizzle
60%
21°
34°
Wed
9/2
Drizzle
60%
20°
33°
Thu
9/3
Drizzle
60%
19°
33°
Fri
9/4
Drizzle
60%
19°
33°
42
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
37 AQI 6.7 µg/m³
O3
Ground-level ozone
Dominant
42 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 42 Good 42 37
Sun 36 Good 36 24
Mon 36 Good 36 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 Fri Aug 21, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE729 J/kg
MLCAPE476 J/kg
MUCAPE729 J/kg
SBCIN-0 J/kg
MLCIN-7 J/kg
Lifted Index-3.2
Kinematics
0–6 km Shear21 kt
0–1 km Shear15 kt
Eff. Shear21 kt
0–1 km SRH71
0–3 km SRH119
Eff. SRH119
Storm Motion278° @ 16 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.9
K-Index37.8
Thermo & Levels
PWAT2.18 in
0–3 km LR5.9 °C/km
700–500 LR5.6 °C/km
Total Totals47.4
LCL942 hPa
LFC824 hPa
EL233 hPa
Freezing Lvl14,232 ft