Severe Thunderstorm Watch 8:00 PM

La Crosse, Virginia

Last updated: 6:27 PM CDT  ·  Refresh
24°C
Feels like 26°
Overcast
▲ 26°  /  ▼ 19°
Wind
7 mph SSE
Humidity
85%
Dew Point
21°
Pressure
29.60 inHg
Visibility
10 mi
UV Index
0.5
Cloud Cover
97%
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 24°C. Precipitation is likely — peak probability 89% around 9 PM. Atmospheric instability is elevated (CAPE up to 1119 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
24°
61%
8 PM
24°
74%
9 PM
23°
88%
10 PM
22°
82%
11 PM
22°
65%
12 AM
21°
65%
1 AM
22°
65%
2 AM
22°
54%
3 AM
22°
59%
4 AM
22°
54%
5 AM
19°
42%
6 AM
20°
47%
7 AM
20°
52%
8 AM
21°
56%
9 AM
22°
45%
10 AM
23°
41%
11 AM
24°
54%
12 PM
26°
55%
1 PM
27°
57%
2 PM
29°
53%
3 PM
28°
49%
4 PM
28°
54%
5 PM
27°
54%
6 PM
27°
61%
7-Day Forecast
Tonight
26° 19°
Overcast with a 82% chance of rain.
Sat
31° 19°
Rain, 65% chance.
Sun
32° 19°
Clear with a 28% chance of rain.
Mon
31° 18°
Mostly Clear with a 33% chance of rain.
Tue
32° 16°
Mostly Cloudy.
Wed
34° 18°
Rain, 69% chance.
Thu
33° 20°
Rain, 73% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Overcast 61% 7 mph SSE 85%
8 PM 24° Overcast 74% 9 mph SSE 91%
9 PM 23° Heavy Rain 88% 6 mph SSE 94%
10 PM 22° Heavy Rain 82% 4 mph SSE 96%
11 PM 22° Heavy Rain 65% 3 mph SE 97%
12 AM 21° Overcast 65% 3 mph SE 97%
1 AM 22° Mostly Cloudy 65% 3 mph ESE 97%
2 AM 22° Mostly Cloudy 54% 3 mph ESE 97%
3 AM 22° Mostly Cloudy 59% 3 mph ESE 97%
4 AM 22° Overcast 54% 3 mph ESE 97%
5 AM 19° Mostly Cloudy 42% 3 mph SE 97%
6 AM 20° Mostly Cloudy 47% 3 mph SE 96%
7 AM 20° Mostly Cloudy 52% 4 mph SSE 96%
8 AM 21° Mostly Cloudy 56% 4 mph SSE 93%
9 AM 22° Mostly Cloudy 45% 4 mph SSE 88%
10 AM 23° Mostly Cloudy 41% 4 mph S 83%
11 AM 24° Mostly Cloudy 54% 4 mph S 77%
12 PM 26° Mostly Cloudy 55% 4 mph SSW 72%
1 PM 27° Mostly Cloudy 57% 4 mph SSW 66%
2 PM 29° Mostly Cloudy 53% 4 mph SSW 65%
3 PM 28° Drizzle 49% 4 mph SSW 68%
4 PM 28° Rain 54% 4 mph S 70%
5 PM 27° Rain 54% 3 mph S 73%
6 PM 27° Rain 61% 3 mph S 75%
15-Day Forecast
Today
8/21
Overcast
82%
19°
26°
Sat
8/22
Rain
65%
19°
31°
Sun
8/23
Clear
28%
19°
32°
Mon
8/24
Mostly Clear
33%
18°
31°
Tue
8/25
Mostly Cloudy
19%
16°
32°
Wed
8/26
Rain
69%
18°
34°
Thu
8/27
Rain
73%
20°
33°
Fri
8/28
Rain
66%
20°
34°
Sat
8/29
Rain
66%
19°
34°
Sun
8/30
Rain
72%
19°
34°
Mon
8/31
Drizzle
52%
20°
37°
Tue
9/1
Drizzle
60%
21°
35°
Wed
9/2
Drizzle
60%
20°
34°
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, 22:00'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
SBCAPE403 J/kg
MLCAPE330 J/kg
MUCAPE745 J/kg
SBCIN-48 J/kg
MLCIN-54 J/kg
Lifted Index-2.7
Kinematics
0–6 km Shear25 kt
0–1 km Shear4 kt
Eff. Shear21 kt
0–1 km SRH-27
0–3 km SRH131
Eff. SRH131
Storm Motion284° @ 19 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell1.1
K-Index39.7
Thermo & Levels
PWAT2.21 in
0–3 km LR5.3 °C/km
700–500 LR5.9 °C/km
Total Totals49.9
LCL958 hPa
LFC743 hPa
EL329 hPa
Freezing Lvl14,154 ft