McNeese75 said:
McNeese72 said:
Weather update: Temp today was 94 degrees with 75% humidity for a heat index of 100+ degrees. Low today was 78.
What kind of temps are you guys having for you practices?
Doc
Doc, let me add, I am watching the 10:00 PM local weather and the heat index is still 91
Sure is toasty in Cowboy land /users/31/07/37/smiles/smily34.gif
Sure wish it was 68 degrees here (like it is in Portland at 8:30)
Practical Heat Stress Calculator
Task Identifier
Portland Area Weather
Physical Parameters of the Task and Environment (Actual or Simulated)
Dry bulb (standard) temperature °C °F
[enter as Celsius or Farenheit] 75
Relative Humidity (%) 57
Evaluate workforce acclimatization
Evaluate impact of clothing, FRCs and certain PPE
Evaluate the level of the physical workload
Evaluate the solar load
Calculated Parameters of the Heat Stress Model
Heat Index (°F) 78
Heat Index adjustment due to workforce acclimatization 0
Heat Index adjustment due to impact of PPE or other clothing 0
Heat Index adjustment due to the physical workload 5
Heat Index adjustment due to the solar load 0
Heat Stress Interpretation
Adjusted Heat Index (°F)
83
NONE - Adjusted Heat Index less than 90°F (32°C). No adverse impact expected
LOW RISK - Adjusted Heat Index more than 90°F (32°C) and less than 104°F (40°C). Heat exhaustion or cramps possible.
MEDIUM RISK - Adjusted Heat Index more than 104°F (40°C) and less than 130°F (54°C). Heat cramps or exhaustion likely. Heat stroke possible.
HIGH RISK - Adjusted Heat Index more than 130°F (54°C). Heat stroke very likely
Severe Heat Illness Risk Level None
Recommended Actions
No action need at this time
Notes on the Use of this Tool
When measuring Dry Bulb Temperature, be sure to measure the temperature at the point work is being performed in case a heat source greater than ambient temperature is collocated to the work area and impacting the crew.
Individual reactions to heat will vary. Risk levels are determined based upon the responses to heat stress of average males of average fitness level. Individual differences may increase the risk levels and should be considered when evaluating the heat stress risk level.
Chart provides guidelines for assessing the potential severity of heat stress. This chart is not meant to replace heat stress assessments using Wet Bulb Globe Temperature Index or Required Sweat Rate. If the appropriate psychometric measuring capabilities are available, then they should be considered for use and the results considered more accurate than those obtained from the above methodology
References
U.S. National Weather Service
U.S. NIOSH Publication 86-113 “Occupational Exposure to Hot Environments”
HSE RESEARCH REPORT 008 – “The development of a practical heat stress assessment methodology for use in UK industry”, Damian Bethea & Ken Parsons, Department of Human Sciences, Loughborough University
U.S. Army CHPMM – Heat Stress Assessment