Isolated showers in portions of south central and southeast Oklahoma, National Weather Service, Norman
ISOLATED SHOWERS WILL MOVE NORTH ACROSS PORTIONS OF SOUTH CENTRAL
AND SOUTHEAST OKLAHOMA AND NORTH CENTRAL TEXAS LATE THIS AFTERNOON
AND INTO EARLY THIS EVENING. THESE SHOWERS WILL BE VERY ISOLATED SO
VERY FEW AREAS WILL RECEIVE RAINFALL… BUT THE RAIN MAY BE BRIEFLY
HEAVY IN THOSE AREAS THE DO RECEIVE RAIN. OVERALL.. THE SHOWERS ARE
WEAKENING AND DECREASING IN COVERAGE.
Few showers and perhaps an isolated thunderstorm possible, National Weather Service, Norman
.REGIONAL WEATHER DISCUSSION…
A FEW SHOWERS AND PERHAPS AN ISOLATED THUNDERSTORM WILL BE POSSIBLE
ACROSS MAINLY SOUTH CENTRAL INTO SOUTHEAST OKLAHOMA THROUGH THE
AFTERNOON HOURS. THROUGH 5 PM… VERY LIGHT RAIN WILL BE POSSIBLE…
MAINLY SOUTH AND EAST OF A WAURIKA… TO PAULS VALLEY TO SEMINOLE
LINE. SOME HEAVIER ACTIVITY TO THE SOUTH AND EAST OF THE AREA COULD
AFFECT LOCATIONS FROM NEAR MARIETTA EAST TO DURANT TO ATOKA BY 5 PM.
Excessive heat warning for Washington, Tulsa and Rogers Counties, National Weather Service, Tulsa
EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING…
AN EXCESSIVE HEAT WARNING IS IN EFFECT…
FOR THE FOLLOWING COUNTIES…
* IN OKLAHOMA…WASHINGTON…TULSA AND ROGERS.
HAZARDOUS WEATHER…
* HEAT INDEX VALUES ARE EXPECTED TO REACH 105 TO 108 DEGREES OVER
THE WARNING AREA…ESPECIALLY IN THE MORE URBAN AREAS OF TULSA
COUNTY. TEMPERATURES SATURDAY WILL ONCE AGAIN REACH THE MID TO
UPPER 90S…HOWEVER THE HUMIDITY LEVELS WILL LOWER ENOUGH TO
KEEP AFTERNOON HEAT INDEX VALUES BELOW 105 DEGREES.
IMPACTS…
* THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL
COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES
ARE POSSIBLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
* DRINK PLENTY OF FLUIDS…STAY IN AN AIR-CONDITIONED ROOM…STAY
OUT OF THE SUN…AND CHECK UP ON RELATIVES AND NEIGHBORS.
Severe drought conditions in far southeast Oklahoma
SEVERE DROUGHT CONDITIONS HAVE DEVELOPED ACROSS FAR SOUTHEAST OKLAHOMA…
SYNOPSIS…
FAR SOUTHEAST OKLAHOMA HAS EXPERIENCED RAINFALL DEFICITS OVER THE
PAST SEVERAL MONTHS. RECENT HOT WEATHER AND A LACK OF PRECIPITATION HAS
LED TO DROUGHT DEVELOPMENT ACROSS FAR SOUTHEAST OKLAHOMA. ACCORDING
TO THE U.S. DROUGHT MONITOR /USDM/ ISSUED FOR JULY 20 2010…MODERATE
/D1/ TO SEVERE /D2/ DROUGHT CONDITIONS EXIST ACROSS MOST OF CHOCTAW
AND PUSHMATAHA COUNTIES IN FAR SOUTHEAST OKLAHOMA. ABNORMALLY DRY /D0/
CONDITIONS WERE ALSO PRESENT ACROSS SOUTHERN LE FLORE COUNTY.
THE USDM IS A COLLABORATIVE EFFORT BETWEEN SEVERAL GOVERNMENT AND
ACADEMIC PARTNERS. IT IS A WEEKLY NATIONAL PRODUCT ISSUED ON
THURSDAY MORNING USING DATA COLLECTED THROUGH THE PREVIOUS TUESDAY
MORNING…SO IT DOES NOT CONSIDER PRECIPITATION WHICH HAS FALLEN
AFTER THE DATA CUT-OFF TIME.
THERE ARE FIVE LEVELS OF INTENSITY DEPICTED ON THE U.S. DROUGHT
MONITOR. THE USDM LEVELS ARE THE FOLLOWING:
D0 – ABNORMALLY DRY /NOT IN DROUGHT BUT SHOWING DRYNESS/…
D1 – MODERATE DROUGHT…
D2 – SEVERE DROUGHT…
D3 – EXTREME DROUGHT…AND
D4 – EXCEPTIONAL DROUGHT.
THE LOCAL DROUGHT INFORMATION STATEMENT IS ISSUED BY THE NWS OFFICE
IN TULSA WHEN NEEDED TO SUPPLEMENT THE NATIONAL USDM PRODUCT. LOCAL
STATEMENTS MAY BE ISSUED BI-WEEKLY DURING TIMES WHEN THE USDM
INDICATES SEVERE DROUGHT CONDITIONS OR AS LOCAL CONDITIONS WARRANT.
SUMMARY OF IMPACTS…
STATE AND LOCAL ACTIONS.
NO BURN BANS ARE IN EFFECT FOR PUSHMATAHA AND CHOCTAW COUNTIES.
SOIL MOISTURE IMPACTS.
FOR THE MONTH OF JUNE 2010…THE CLIMATE PREDICTION CENTER /CPC/ SOIL
MOISTURE ANOMALY ANALYSIS INDICATED SOIL MOISTURE DEFICITS OF 1 TO
2.5 INCHES FOR PORTIONS OF SOUTHEAST OKLAHOMA. ACCORDING TO THE
OKLAHOMA CLIMATOLOGICAL SURVEY /OCS/…THE DAILY AVERAGED FRACTIONAL
WATER INDEX VALUES THROUGH JULY 21 RANGED FROM 0.2 TO 0.5 AT BOTH
5CM AND 25CM BELOW GROUND ACROSS SOUTHEAST OKLAHOMA. THE MESONET
STATION IN CLOUDY OKLAHOMA HAS SEEN A STEADY DECREASE IN THE 25CM
FRACTIONAL WATER INDEX FROM JUNE 15 THROUGH JULY 21…WITH MORE
RECENT DECLINES ELSEWHERE.
AGRICULTURAL IMPACTS.
ACCORDING TO THE CHOCTAW COUNTY COOPERATIVE EXTENSION OFFICE…MOST
OF CHOCTAW AND PUSHMATAHA COUNTIES ARE EXPERIENCING SOME STRESS DUE
TO THE LACK OF RAINFALL. HOWEVER…THE SMALL PORTIONS OF THESE COUNTIES
WHICH HAVE RECEIVED ISOLATED SHOWERS AND THUNDERSTORMS RECENTLY ARE
PERFORMING BETTER. ACROSS BOTH COUNTIES…THERE HAS BEEN A REDUCTION
IN GRASS AND HAY PRODUCTION…WITH THE SHALLOWER SOILS SHOWING THE
GREATEST SIGNS OF STRESS. OTHER CROPS IN DEEPER SOILS ARE PERFORMING
BETTER…MOSTLY DUE TO THE MORE FAVORABLE CONDITIONS AT THE BEGINNING
OF THE SEASON.
FIRE IMPACTS.
ACCORDING TO THE CHOCTAW COUNTY COOPERATIVE EXTENSION
OFFICE…THERE HAS BEEN A INCREASE RECENTLY IN WILDFIRE ACROSS
CHOCTAW AND PUSHMATAHA COUNTIES. ACCORDING TO OCS…THE KEETCH-
BYRAM DROUGHT INDEX WAS BETWEEN 400 AND 600 ACROSS SOUTHEAST
OKLAHOMA AS OF JULY 22.
CLIMATE SUMMARY…
ACCORDING TO THE NWS PRECIPITATION ANALYSIS…MOST OF PUSHMATAHA
AND CHOCTAW COUNTIES HAVE RECEIVED BETWEEN 25 AND 90 PERCENT OF
THE NORMAL RAINFALL OVER THE LAST 30 DAYS ENDING JULY 21. THIS
AREA HAS ALSO RECEIVED BETWEEN 25 AND 75 PERCENT OF THE NORMAL
RAINFALL OVER THE LAST 60 DAYS.
SUMMARY STATISTICS FROM THE OKLAHOMA CLIMATOLOGICAL SURVEY /OCS/
SHOWING PRECIPITATION DEPARTURES THROUGH VARIOUS TIME PERIODS
ENDING ON JULY 21 2010:
FOR THE SOUTHEAST OKLAHOMA CLIMATOLOGICAL DISTRICT:
DEPARTURE PERCENT OF NORMAL RANK SINCE 1921
PAST 30 DAYS +0.34 109 28TH WETTEST
PAST 60 DAYS -2.79 69 23RD DRIEST
PAST 90 DAYS -3.12 79 24TH DRIEST
YEAR TO DATE -3.87 86 26TH DRIEST
WARM GROWING
SEASON /SINCE
MARCH 1 2010/ -6.04 73 18TH DRIEST
PRECIPITATION/TEMPERATURE OUTLOOK…
ACROSS SOUTHEAST OKLAHOMA…THE TULSA NWS OFFICE IS FORECASTING
HOT AND HUMID CONDITIONS THROUGH JULY 25…WITH LITTLE TO NO
CHANCE FOR RAINFALL. TROPICAL MOISTURE MAY MOVE INTO THE AREA FOR
THE FIRST PART OF THE WEEK OF JULY 26…BRINGING LOW CHANCES FOR
RAIN. THROUGH JULY 29…TEMPERATURES ARE FORECAST TO REMAIN ABOVE
AVERAGE FOR LATE JULY.
BEYOND THIS PERIOD…THE CLIMATE PREDICTION CENTER /CPC/ OUTLOOK
FOR AUGUST 2010 CALLS FOR EQUAL CHANCES OF ABOVE…NEAR…AND
BELOW NORMAL TEMPERATURES AND FOR A SLIGHTLY ENHANCED CHANCE FOR
ABOVE MEDIAN RAINFALL ACROSS SOUTHEAST OKLAHOMA. THE CPC 90-DAY
OUTLOOK FOR THE AUGUST-SEPTEMBER-OCTOBER 2010 PERIOD INDICATES A
SLIGHTLY ENHANCED CHANCE FOR ABOVE NORMAL TEMPERATURES AND EQUAL
CHANCES FOR ABOVE…NEAR…AND BELOW MEDIAN PRECIPITATION.
THE CPC U.S. SEASONAL DROUGHT OUTLOOK INDICATES SOME IMPROVEMENT
TO THE DROUGHT CONDITIONS ACROSS SOUTHEAST OKLAHOMA THROUGH THE
END OF OCTOBER 2010…BUT LITTLE TO NO RELIEF IS EXPECTED DURING
THE LATTER HALF OF JULY 2010.
HYDROLOGIC SUMMARY AND OUTLOOK…
ACCORDING TO THE U.S. ARMY CORPS OF ENGINEERS /COE/…MOST MAJOR
RESERVOIRS IN THE LOWER RED RIVER BASIN IN SOUTHEAST OKLAHOMA
WERE BETWEEN 40 AND 100 PERCENT OF THEIR CONSERVATION POOLS. AS OF
JULY 22 2010…HUGO LAKE WAS REPORTING 44 PERCENT STORAGE WITHIN
THE CONSERVATION POOL WHILE SARDIS LAKE WAS AT 98 PERCENT.
ACCORDING TO THE U.S. GEOLOGICAL SURVEY /USGS/…STREAMFLOWS IN
THE LOWER RED RIVER BASIN OF SOUTHEAST OKLAHOMA WERE GENERALLY IN
THE 25TH TO 75TH PERCENTILE…WITH THE STREAMFLOW FOR THE RED
RIVER ITSELF WAS RUNNING IN THE 90TH PERCENTILE.
FYI: Tropical Weather Outlook, National Hurricane Center
FOR THE NORTH ATLANTIC…CARIBBEAN SEA AND THE GULF OF MEXICO…
THE NATIONAL HURRICANE CENTER IS ISSUING ADVISORIES ON TROPICAL
STORM BONNIE LOCATED ABOUT 80 MILES SOUTH-SOUTHEAST OF MIAMI
FLORIDA.
THE MAJORITY OF THE DISORGANIZED SHOWER AND THUNDERSTORM ACTIVITY
ASSOCIATED WITH A BROAD AREA OF LOW PRESSURE LOCATED OVER EASTERN
MEXICO HAS MOVED INLAND. DEVELOPMENT OF THIS SYSTEM IS NOT
LIKELY…AND THERE IS A LOW CHANCE…NEAR ZERO PERCENT…OF THIS
SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS.
ELSEWHERE…TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE
NEXT 48 HOURS.
Heat index could continue to reach 100 to 105 degrees today, National Weather Service, Norman
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN…WESTERN…
CENTRAL…AND SOUTHERN OKLAHOMA…AND WESTERN NORTH TEXAS.
.DAY ONE…TODAY AND TONIGHT…
THUNDERSTORM OUTLOOK…
NO THUNDERSTORMS ARE EXPECTED THROUGH TONIGHT.
DISCUSSION…
A RIDGE ALOFT AND A LACK OF LOW-LEVEL FOCUSING MECHANISMS WILL
MINIMIZE THE CHANCES OF THUNDERSTORMS THROUGH TONIGHT.
PROBABILITY TABLE…
VALID THROUGH 700 AM CDT SATURDAY JUL 24.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA…LESS THAN 5 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR…LESS THAN 5 PERCENT.
OTHER HAZARDOUS WEATHER…
HOT AND SOMEWHAT HUMID WEATHER WILL CONTINUE. AFTERNOON HEAT INDEX
VALUES WILL REACH 100 TO 105 DEGREES. PEOPLE SHOULD CONTINUE TO USE
CAUTION TO AVOID HEAT RELATED ILLNESS.
.DAYS TWO THROUGH SEVEN…SATURDAY THROUGH THURSDAY…
THUNDERSTORM OUTLOOK…
A SURFACE TROUGH WILL APPROACH NORTHERN OKLAHOMA ON SATURDAY…
BRINGING A CHANCE OF THUNDERSTORMS FOR SATURDAY AND SATURDAY NIGHT.
AN INCREASE IN LOW-LEVEL MOISTURE WILL ALSO RESULT IN SLIGHT CHANCES
OF THUNDERSTORMS OVER CENTRAL AND EASTERN OKLAHOMA ON MONDAY… AND
WEDNESDAY THROUGH FRIDAY.
OTHER HAZARDOUS WEATHER…
HOT AFTERNOON TEMPERATURES WILL CONTINUE. IF YOU WILL BE OUT DURING
THE HEAT OF THE DAY…SEEK FREQUENT SHADE AND DRINK PLENTY OF WATER.
YOU SHOULD ALSO MAKE SURE THAT PETS AND LIVESTOCK HAVE PLENTY OF
FRESH WATER.
Summer weather safety in Oklahoma
Source: National Weather Service
Summer Weather Safety and Survival
Beat the Heat – Summer Safety Rules
What To Look For and Actions To Take
The Symptoms of Heat Disorders…
| Heat Disorder | Symptoms | First Aid |
|---|---|---|
| Sunburn | Skin redness and pain, possible swelling, blisters, fever, headaches. | Take a shower, using soap, to remove oils that may block pores preventing the body from cooling naturally. If blisters occur, apply dry, sterile dressings and get medical attention. |
| Heat Cramps | Painful spasms usually in leg and abdominal muscles. Heavy sweating. | Firm pressure on cramping muscles or gentle massage to relieve spasm. Give sips of water. If nausea occurs, discontinue. |
| Heat Exhaustion | Heavy sweating, weakness, skin cold, pale and clammy. Weak pulse. Normal temperature possible. Fainting, vomiting. | Get victim to lie down in a cool place. Loosen clothing. Apply cool, wet cloths. Fan or move victim to air-conditioned place. Give sips of water. If nausea occurs, discontinue. If vomiting occurs, seek immediate medical attention. |
| Heat Stroke (Sun Stroke) |
High body temperature (106+). Hot, dry skin. Rapid, strong pulse. Possible unconsciousness. Victim will likely not sweat. | Heat stroke is a severe medical emergency. Call 9-1-1 or emergency medical services or get the victim to a hospital immediately. Delay can be fatal. Move victim to a cooler environment. Try a cool bath or sponging to reduce body temperature. Use extreme caution. Remove clothing. Use fans and/or air conditioners. DO NOT GIVE FLUIDS. |
You can help yourself and others avoid experiencing the HEAT DISORDERS (above) by following these safety rules.
Thinking About Yourself
- Avoid the Heat. Stay out of the heat and indoors as much as possible. Spend time in an air conditioned space. Only two hours a day in an air-conditioned space can significantly reduce the risk of heat-related illness. Shopping malls offer relief if your home is not air-conditioned. If air conditioning is not available, stay on the lowest floor out of the sunshine. Remember, electric fans do not cool, they just blow hot air around.
- Dress for the heat. Wear loose-fitting clothes that cover as much skin as possible. Lightweight, light-colored clothing that reflects heat and sunlight and helps maintain normal body temperature. Protect your face and head by wearing a wide-brimmed hat. Avoid too much sunshine. Sunburn slows the skin’s ability to cool itself. Use a sunscreen lotion with a high SPF (sun protection factor) rating.
- Drink FOR the Heat. Drink plenty of water and natural juices, even if you don’t feel thirsty. Even under moderately strenuous outdoor activity, the rate your body can absorb fluids is less than the rate it loses water due to perspiration. However, if you have epilepsy or heart, kidney, or liver disease; are on fluid-restrictive diets; or have a problem with fluid retention should consult a doctor before increasing liquid intake.
- Do not drink IN the Heat. Avoid alcoholic beverages and beverages with caffeine, such as coffee, tea, and cola. Alcohol and caffeine constrict blood vessels near the skin reducing the amount of heat the body can release. Although beer and alcohol beverages appear to satisfy thirst, they actually cause further body dehydration.
- Eat for the Heat. Eat small meals more often. Avoid foods that are high in protein because they increase metabolic heat. Avoid using salt tablets, unless directed to do so by a physician.
- Living in the Heat. Slow down. Reduce, eliminate, or reschedule strenuous activities such as running, biking and lawn care work when it heats up. The best times for such activities are during early morning and late evening hours. Take cool baths or showers and use cool, wet towels.
- Learn the symptoms of heat disorders and know how to give first aid.
Thinking About Others
- Do not leave children in a closed vehicle, even for a few minutes. This is a “No-Brainer”. Temperatures inside a closed vehicle can reach 140°F-190°F degrees within 30 minutes on a hot, sunny day. However, despite this common sense rule, deaths from heat occur almost every Summer when someone leaves their child in a closed vehicle.
- When outdoors, protect small children from the sun, their skin is sensitive.
- Help your pets keep their cool. It will “feel” as hot for them as it will for you. As with children, do not leave your pets in a closed vehicle. Be sure your animals have access to shade and a water bowl full of cold, clean water. Dogs don’t tolerate heat well because they don’t sweat. Their bodies get hot and stay hot. During summer heat, avoid outdoor games or jogging with your pet. If you would not walk across hot, sunbaked asphalt barefoot, don’t make your dog walk on it either. (Dogs can also get blisters on their paws from hot pavement.)
- Learn the symptoms of heat disorders and know how to give first aid.
Thinking About Your Environment
- Protect windows. Hang shades, draperies, awnings, or louvers on windows that receive morning or afternoon sun. Outdoor awnings or louvers can reduce the heat entering the house by as much as 80%.
- Conserve electricity. During periods of extreme heat, people tend to use a lot more power for air conditioning which can lead to a power shortage or outage. Vacuum air conditioner filters weekly during periods of high use.
- Keep lights turned down or turned off.
- Avoid using the oven.
- Learn the symptoms of heat disorders and know how to give first aid.
Buffalo and Freedom reach triple digits
So far today, the Oklahoma Mesonet Stations at Buffalo and Freedom in northwest Oklahoma have reached 100 degrees, actual temperature.
Hot weather expected to continue, National Weather Service, Norman
CENTRAL…AND SOUTHERN OKLAHOMA…AND WESTERN NORTH TEXAS.
.DAY ONE…THIS AFTERNOON AND TONIGHT…
THUNDERSTORM OUTLOOK…
THUNDERSTORMS ARE NOT EXPECTED.
DISCUSSION…
WITH A BROAD UPPER LEVEL RIDGE IN PLACE OVER THE AREA…WARM MID
LEVEL TEMPERATURES WILL MAKE THUNDERSTORM DEVELOPMENT UNLIKELY.
PROBABILITY TABLE…
VALID THROUGH 700 AM CDT FRIDAY JUL 23.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA…10 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR…LESS THAN 5 PERCENT.
OTHER HAZARDOUS WEATHER…
HOT AND SOMEWHAT HUMID WEATHER WILL CONTINUE. AFTERNOON HEAT INDEX
VALUES WILL REACH 100 TO 105 DEGREES. PEOPLE SHOULD CONTINUE TO USE
CAUTION TO AVOID HEAT RELATED ILLNESS.
.DAYS TWO THROUGH SEVEN…FRIDAY THROUGH WEDNESDAY…
THUNDERSTORM OUTLOOK…
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS FROM FRIDAY THROUGH SUNDAY
AS THE RIDGE WEAKENS AND A WEAK FRONT APPROACHES NORTHERN OKLAHOMA.
A SLIGHT CHANCE OF THUNDERSTORMS WILL LINGER INTO EARLY NEXT
WEEK…MAINLY IN CENTRAL AND SOUTHEAST OKLAHOMA.
OTHER HAZARDOUS WEATHER…
HOT AFTERNOON TEMPERATURES WILL CONTINUE. IF YOU WILL BE OUT DURING
THE HEAT OF THE DAY…SEEK FREQUENT SHADE AND DRINK PLENTY OF WATER.
YOU SHOULD ALSO MAKE SURE THAT PETS AND LIVESTOCK HAVE PLENTY OF
FRESH WATER.
What is the heat index?
National Weather Service
Summer Weather Safety and Survival
The Heat Index
Your local weather experts at the National Weather Service, as part of our mission to protect life and property, have developed a measure of how the hot weather “feels” to the body. The Heat Index is based on work by R.G. Steadman and published in 1979 under the title “The Assessment of Sultriness, Parts 1 and 2.” In this work, Steadman constructed a table which uses relative humidity and dry bulb temperature to produce the “apparent temperature” or the temperature the body “feels”.
We use a table like this to provide you with Heat Index values. These values are for shady locations only. Exposure to full sunshine can increase heat index values by up to 15°F. Also, strong winds, particularly with very hot, dry air, can be extremely hazardous as the wind adds heat to the body. The Heat Index Chart is below.
How to read the chart…Follow the temperature line until it intersects the relative humidity line. Then read the Heat Index on the curved line. For example, an air temperature of 100°F and Relative Humidity of 40%. Follow the 100°F temperature line until it intersects the 40% relative humidity line. Then curved line that also intersects is the Heat Index of 110°F, or Very Hot. That is the temperature the body thinks it is and attempts to compensate for that level of heat. Remember, these values are in the SHADE. You can add up to 15°F to these values if you are in direct sunlight.
The table below tells you the risk to the body from continued exposure to the excessive heat.
| Category | Classification | Heat Index/Apparent Temperature (°F) | General Affect on People in High Risk Groups |
|---|---|---|---|
| I | Extremely Hot | 130°F or Higher | Heat/Sunstroke HIGHLY LIKELY with continued exposure |
| II | Very Hot | 105°F – 130°F | Sunstroke, heat cramps, or heat exhaustion LIKELY, and heatstroke POSSIBLE with prolonged exposure and/or physical activity |
| III | Hot | 90°F – 105°F | Sunstroke, heat cramps, or heat exhaustion POSSIBLE with prolonged exposure and/or physical activity |
| IV | Very Warm | 80°F – 90°F | Fatigue POSSIBLE with prolonged exposure and/or physical activity |
