North Charleston, SC · Updated Fri, Sep 11, 9:10 AM
forecasted gust
observed sustained
Daylight
6:35 AM – 7:58 PM
13.4 hrs daylight
Working: 14 hrs
Crane Hours
~12.4 hrs
Mobile Hydraulic / 30 mph gust limit
Score: 86 / 100
⚠Intermittent rain (4 of 11 working hrs)
⚠Intermittent storm risk (4 of 11 working hrs)
⚠Heat index 101°F > 100°F (cap: B)
Tap a day for the detailed breakdown
Light wind gusts throughout (peak 18 mph). Rain most likely between 2 PM and 3 PM. Thunderstorm risk from 11 AM to 7 PM; 30/30 lightning protocol may apply. Heat index in the OSHA Caution range, peaking near 101°F around 3 PM.
Peak Forecasted Gust (10-day)
22 mph
Peak on Wed, Sep 16
Precipitation (3-Day Peak)
63%
Highest on Sat, Sep 12
Tropical Systems
None
Atlantic basin clear
Heat Index (Today Peak)
101°F
OSHA Caution — hydration required
| Threshold | Today Sep 11 Peak: 18 mph | Tomorrow Sep 12 Peak: 19 mph | Day 3 Sep 13 Peak: 17 mph | Day 4-5 Sep 14 – 15 Peak: 20 mph | Day 6-7 Sep 16 – 17 Peak: 22 mph | Day 8-10 Sep 18 – 20 Peak: 22 mph |
|---|---|---|---|---|---|---|
20 mphPlanning threshold | 18% | 20% | 6% | 32% | 58% | 48% |
24 mphCrane operations suspended | 4% | 2% | 2% | 6% | 6% | 6% |
35 mphAll steel erection suspended | 0% | 0% | 0% | 0% | 0% | 0% |
50 mphSevere threshold | 0% | 0% | 0% | 0% | 0% | 0% |
88 mphASCE 37 construction wind | 0% | 0% | 0% | 0% | 0% | 0% |
Probability = % of ensemble members predicting gusts at or above threshold in each time window. Based on ECMWF IFS ensemble.
Updated 9:10 AMShaded band = 10th–90th percentile range. Dashed gray = ensemble maximum. Dashed colored lines = gust thresholds. Hover/tap for details.
NWS sustained wind · Ensemble forecasted gusts · * NWS gust estimate · Off-hours
| Status | Time | Sustained | Forecasted Gust | Dir | Conditions |
|---|---|---|---|---|---|
| 9:00 AM | 5 mph | 10 mph | SW | Mostly Sunny | |
| 10:00 AM | 5 mph | 9 mph | SW | Mostly Sunny | |
| 11:00 AM | 5 mph | 9 mph | W | Slight Chance Showers And Thunderstorms | |
| 12:00 PM | 5 mph | 9 mph | SW | Slight Chance Showers And Thunderstorms24% | |
| 1:00 PM | 6 mph | 10 mph | S | Chance Showers And Thunderstorms30% | |
| 2:00 PM | 8 mph | 11 mph | S | Chance Showers And Thunderstorms41% | |
| 3:00 PM | 8 mph | 12 mph | S | Chance Showers And Thunderstorms42% | |
| 4:00 PM | 8 mph | 14 mph | S | Chance Showers And Thunderstorms30% | |
| 5:00 PM | 9 mph | 15 mph | S | Slight Chance Showers And Thunderstorms23% | |
| 6:00 PM | 8 mph | 16 mph | S | Slight Chance Showers And Thunderstorms | |
| 7:00 PM | 8 mph | 18 mph | S | Slight Chance Showers And Thunderstorms20% |