Georgia · GHSA
- 82 °Fthree 4-minute breaks per hour
- 87 °F2 h max, four breaks
- 90 °F1 h max, no pads
- 92 °Fno outdoor workouts

Flash heat and WBGT · Hourly forecast · 1×1 km cells
Flash forecasts wet-bulb globe temperature, heat index, air temperature and dew point for every 1×1 km cell, hourly. Your sensor still makes the policy call. Flash tells you at noon what it will read at 4 pm.
No hardware · runs beside any WBGT meter you already own · For schools, athletics, construction, events and utilities
Illustrative example · Not live weather
Field B sensor 84.2 °F · 12:40
What it predicts · Four heat parameters · One grid
Four parameters per 1×1 km cell, from the same engine and the same run as the lightning and hail products. Forecast hourly.
Illustrative example · not live weather · Practice Field B · Now → 6 pm
Hourly forecast
The number your sensor will read at 4 pm, known at noon. Shown against the GHSA bands or your own thresholds, per field.
Hourly forecast · 1×1 km
For crews, events and utilities that plan by heat index rather than WBGT, on the same cells and the same run.
Hourly forecast · 1×1 km
Per 1×1 km cell, so the stadium and the practice field two miles away get their own numbers, not the airport's.
Hourly forecast · 1×1 km
The humidity half of the WBGT story, and the reason two afternoons with the same air temperature can land in different bands.
Forecast vs measurement · The schools rule
GHSA reads the meter on the field, and each state sets its own method. Flash does not replace it. Policy compliance uses the reading your state requires; planning uses Flash.
| The decision | Your on-site sensor | Flash forecast |
|---|---|---|
| Stop or modify practice right now | Your on-site sensorDecides.Policy compliance reads the meter on the field. | Flash forecastSupports.Shows whether the next hour is rising or falling, so a pause is a plan. |
| Plan today's practice time | Your on-site sensorCannot.It reads the present only. | Flash forecastDecides.Hourly forecast; move practice before the band changes. |
| Compare fields before assigning sessions | Your on-site sensorCannot.No outlook, no per-field difference. | Flash forecastDecides.Forecast per 1×1 km cell; the shaded field and the turf field get their own numbers. |
| Warn trainers before the band changes | Your on-site sensorAlarms as it crosses.The threshold is already behind you. | Flash forecastAlerts ahead.Push, SMS or Skye when the forecast will cross 82, 87, 90 or 92, before it does. |
| Log the decision for the district | Your on-site sensorThe reading.Whatever the meter said when someone wrote it down. | Flash forecastReading and forecast, side by side.Timestamped in the Command Center log with who made the call. |

Planning day · The noon call
The plan is made at noon. The sensor still makes the policy call at 4 pm.
Plan made · Flash forecast 88.1 °F at 4 pmSensor reads the field · policy call
Who it is for · Heat safety software for four jobs
Anyone who has to decide hours before the heat arrives, and prove afterwards that the decision was made on the numbers.

Athletic directors and trainers: Field B · 88.1 °F at 4 pm · move practice
GHSA or state bands per field, practice moved before 87, both trainers notified, the reading and the forecast in the log.
SchoolsHeat index and WBGT per site for crew rotation and water breaks, with the record the owner's rep asks for.
ConstructionStart times, hydration stations and shade planned against the WBGT forecast for the venue's own cell, not the morning news.
Talk to us about your venueLine crews and restoration shifts planned by cell, so the hottest hour of the day is not also the hardest job.
Talk to us about your crewsSkye · Illustrative example · Not live weather
Skye, Flash Weather's AI weather agent, reads the same WBGT cells and the same run as this page, then answers or acts in the calendar and the phones your staff already use. A person confirms before anything moves; every action is logged.
How Skye worksAthletic director · Practice Field B · Tuesday 12:04
“Move Thursday practice if WBGT tops 87.”
IF WBGT > 87 °F → move practiceTriggered
Asked in Microsoft Teams, from the phone, between two meetings.
88.1 forecast at 4 pm. Practice moved to 5:30 in Google Calendar; trainers notified.
Thursday's outlook for Practice Field B reaches 88.1 °F WBGT at 4:00 pm and stays above 87 until 5:20. Your GHSA policy caps practice at two hours in that band, so the 5:30–7:00 pm slot keeps the full session.
State policy · GHSA and its siblings
Flash ships the GHSA activity bands at 82, 87, 90 and 92 °F WBGT by default and lets you set your own state’s or district’s thresholds per field. Georgia’s policy is written up in full; the sibling pages follow the same format.

Your state sets the bands. Flash ships them.
FHSAA
NCHSAA
SCHSL
AHSAA
Specifications · One set of numbers
The same figures appear on the pricing page and in the order form. Scoring method for every parameter: accuracy method.
| Forecast | Value |
|---|---|
| Forecast interval | Hourly |
| Parameters | WBGT, heat index, air temperature, dew point, per field |
| Resolution | 1×1 km grid cells |
| Inputs | 30+ integrated data signals, the same engine and run as the lightning and hail products |
| Policy bands | GHSA 82 / 87 / 90 / 92 °F by default; custom thresholds per field |
| Delivery | Value |
|---|---|
| Channels | App, SMS, email, Command Center, API and webhooks, Skye |
| Skye | Ask in plain language; the agent calls the same API and acts in your tools Skye |
| Hardware | None. Runs beside any WBGT meter you already own |
| Coverage | Continental U.S. |
| Decision log | Sensor reading and forecast side by side, timestamped, with who made the call |
| Scoring | Scored against ground truth; method and figures on the accuracy page, never quoted unqualified Accuracy method |
FAQ
The four questions that come up on every heat demo, answered with the same numbers as the spec table above.
No. GHSA requires the reading from a scientifically approved WBGT instrument at the practice site, and other states set their own method; that reading stays your compliance record. Flash plans beside it: it tells you at noon what the meter will read at 4 pm, per field, so the decision is made before the band changes.
Hourly bands through the day and a five-day outlook, on the same 1×1 km cell as your lightning alerts, modeled on your own fields rather than the nearest airport. Set your thresholds per field and the forecast shows when each one will be crossed.
The GHSA bands at 82, 87, 90 and 92 °F by default. Set your own state's or district's thresholds per field and the outlook, the alerts and Skye all use them.
Only through Skye, and only after a person confirms. The agent proposes the new slot, shows the cell and the run it read, and writes to your calendar when you say yes. Every change is logged.
Book a demo · No sensors required for the forecast
We'll load your locations, replay last season's strikes against Flash's predictions, and show you the alert log your safety officer would have received.