Afternoon temperatures today will climb into the upper 80s to low 90s with heat indices ranging from 90 to 98 degrees. The highest temperatures and heat indices are expected in the Champlain and Lower Connecticut River Valleys where heat advisories are in effect. Stay hydrated, take breaks in air-conditioned rooms if possible, seek shade often, and check up on relatives and neighbors. Read More >
Choose Element: | Click here for element descriptions |
Sustained Wind Speed | Descriptive Term |
---|---|
40 mph or greater | Strong, dangerous, or damaging |
30-40 mph | Very Windy |
20-30 mph | Windy |
15-25 mph | Breezy, Brisk, or Blustery |
5-15 mph or 10-20 mph | None |
0-5 mph | Light or light and variable wind |
Category | Classification | Heat Index/Apparent Temperature (°F) | General Affect on People in High Risk Groups |
---|---|---|---|
IV | Extremely Hot | 130°F or Higher | Heat/Sunstroke HIGHLY LIKELY with continued exposure |
III | Very Hot | 105°F - 130°F | Sunstroke, heat cramps, or heat exhaustion LIKELY, and heatstroke POSSIBLE with prolonged exposure and/or physical activity |
II | Hot | 90°F - 105°F | Sunstroke, heat cramps, or heat exhaustion POSSIBLE with prolonged exposure and/or physical activity |
I | Very Warm | 80°F - 90°F | Fatigue POSSIBLE with prolonged exposure and/or physical activity |
Lifted Index (LI) | Thunderstorm Indication |
---|---|
< -5 | Very Unstable, Heavy/strong thunderstorm potential |
-3 to -5 | Unstable, Thunderstorms probable |
0 to -2 | Marginally Unstable, Thunderstorms possible |