Public Information Statement
Issued by NWS Portland, ME

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

000
NOUS41 KGYX 051253
PNSGYX
MEZ007>009-012>014-018>022-023>028-NHZ001>010-013-014-061200-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE GRAY ME
0752 AM EST WED NOV 05 2014

THE NATIONAL WEATHER SERVICE OFFICES THAT SERVE NEW ENGLAND
HAVE DECLARED THE WEEK OF NOVEMBER 3RD THROUGH 7TH, WINTER
WEATHER AWARENESS WEEK.  IN CONJUNCTION WITH WINTER WEATHER
AWARENESS WEEK, THE NATIONAL WEATHER SERVICE OFFICE IN GRAY
WILL BE ISSUING PUBLIC INFORMATION STATEMENTS CONCERNING
MANY ASPECTS OF WINTER WEATHER AND WINTER WEATHER
PREPAREDNESS.  THIS IS THE THIRD IN A SERIES OF FIVE PUBLIC
INFORMATION STATEMENTS TO BE ISSUED THIS WEEK.


...EXTREME COLD, HYPOTHERMIA, FROSTBITE, AND WIND CHILL...

COLD AIR, STRONG WINDS, AND COLD WIND CHILL TEMPERATURES ARE
COMMON IN NORTHERN NEW ENGLAND DURING WINTER.  HOWEVER, IF
YOU ARE NOT PREPARED, THESE COLD CONDITIONS CAN LEAD TO
HYPOTHERMIA, FROSTBITE, AND POSSIBLY DEATH.  TO UNDERSTAND
THE DANGERS AND WARNING SIGNS ASSOCIATED WITH THE COLD,
LET`S EXAMINE HOW THE HUMAN BODY REGULATES ITS TEMPERATURE.


...HYPOTHERMIA...

THE HUMAN BODY LOSES HEAT DURING THE WINTER DUE TO THE
CONDUCTION AND CONVECTION OF HEAT FROM THE SKIN TO NEARBY
AIR, DUE TO EVAPORATION OF MOISTURE FROM THE SKIN SURFACE,
AND DUE TO NORMAL RESPIRATION.  TO COMPENSATE FOR THIS HEAT
LOSS, THE BODY BURNS ENERGY TO PRODUCE HEAT TO KEEP THE BODY
TEMPERATURE AT A RELATIVELY CONSTANT LEVEL.  HOWEVER, IF A
BODY LOSES HEAT FASTER THAN IT CAN PRODUCE HEAT, THE BODY
TEMPERATURE WILL COOL TO BELOW NORMAL LEVELS, A MEDICAL
CONDITION KNOWN AS HYPOTHERMIA.

HYPOTHERMIA WILL GRADUALLY WORSEN UNLESS THE OVERALL RATE
OF HEAT LOSS CAN BE STOPPED.  THE WARNING SIGNS FOR
HYPOTHERMIA MAY START WITH SHIVERING AND SHAKING AND MAY END
IN DEATH.  INITIALLY, AS THE BODY TEMPERATURE STARTS TO
DROP, SHIVERING BEGINS.  AT THE SAME TIME, THE BRAIN BEGINS
TO REDUCE THE AMOUNT OF BLOOD THAT IS CIRCULATED TO THE
EXTREMITIES OF THE BODY IN ORDER TO CONSERVE HEAT FOR THE
VITAL ORGANS NEAR THE BODY`S CENTRAL CORE.  IF THE CENTRAL
CORE OF THE BODY CONTINUES TO COOL, UNCONTROLLABLE SHAKING,
MEMORY LOSS, DISORIENTATION, INCOHERENCE, SLURRED SPEECH,
DROWSINESS, AND APPARENT EXHAUSTION MAY DEVELOP.  THESE ARE
ALL SIGNS OF A VERY SERIOUS SITUATION.  IF THE BODY CORE
TEMPERATURE DROPS BELOW 95 DEGREES FAHRENHEIT, JUST 4
DEGREES BELOW NORMAL, IMMEDIATE CARE IS NEEDED, AS THE
PERSON WILL LIKELY BECOME IRRATIONAL.  ONCE THE BODY CORE
TEMPERATURE DROPS BELOW 90 DEGREES, THE PERSON LOSES MUSCLE
CONTROL, AND OUTSIDE HELP IS THE PERSON`S ONLY HOPE FOR
SURVIVAL.  IF THAT HELP IS NOT AVAILABLE, HEART AND/OR
RESPIRATORY FAILURE AND DEATH WILL EVENTUALLY FOLLOW AS THE
CORE TEMPERATURE CONTINUES TO DROP.

IF A PERSON IS SUFFERING FROM HYPOTHERMIA, IT`S CRITICALLY
IMPORTANT THAT THE PERSON BE WARMED PROPERLY.  IF WARMED
IMPROPERLY, DEATH MAY RESULT.  IN A HYPOTHERMIC PERSON,
COLD BLOOD IS CONCENTRATED IN THE EXTREMITIES.  IF THESE
EXTREMITIES ARE WARMED TOO QUICKLY, THIS COLD BLOOD WILL BE
RELEASED INTO THE BODY`S CENTRAL CORE, POSSIBLY LOWERING THE
CENTRAL CORE TEMPERATURE TO A FATAL LEVEL.  USE THE
FOLLOWING STEPS TO RAISE THE CORE TEMPERATURE OF A
HYPOTHERMIC PERSON.

   GET THE PERSON INTO DRY CLOTHING IF THEIR CLOTHES ARE
   WET.

   PUT ON ADDITIONAL CLOTHING TO WARM THE PERSON`S HEAD
   AND TRUNK, SUCH AS A HAT AND VEST.

   WRAP THE PERSON IN A WARM BLANKET AND BE SURE THEIR HEAD
   AND NECK ARE COVERED.  DO NOT COVER THEIR EXTREMITIES.

   GIVE THEM WARM LIQUIDS TO DRINK, BUT NO ALCOHOL, DRUGS,
   OR COFFEE.

   SEEK MEDICAL ATTENTION, IF NECESSARY.

REMEMBER, TEMPERATURES DO NOT HAVE TO BE BELOW FREEZING FOR
HYPOTHERMIA TO DEVELOP.  THE COMBINATION OF TEMPERATURE,
WIND, AND EXPOSURE TO THE ELEMENTS CAN BE DEADLY.
HYPOTHERMIA CAN DEVELOP IN ELDERLY PEOPLE IN A COOL ROOM WITH
FEW, IF ANY, WARNING SIGNS.

...FROSTBITE...

FROSTBITE IS A CONDITION IN WHICH THE BODY TISSUE ACTUALLY
FREEZES. FROSTBITE IS OFTEN ASSOCIATED WITH HYPOTHERMIA.
IN A HYPOTHERMIC PERSON, THE BRAIN GREATLY REDUCES THE
AMOUNT OF BLOOD THAT IS CIRCULATED TO THE EXTREMITIES OF THE
BODY AND THEY BEGIN TO COOL.  THIS INCREASES THE CHANCES
THAT THE TISSUE AT THE END OF THE EXTREMITY MAY ACTUALLY
FREEZE.  THE MOST SUSCEPTIBLE AREAS FOR FROSTBITE INCLUDE
THE FINGERS, TOES, NOSE, AND EAR LOBES.


...WIND CHILL TEMPERATURE...

COLD AIR AND HIGH WINDS CONTRIBUTE THE POSSIBILITY THAT A
PERSON MAY DEVELOP HYPOTHERMIA OR FROSTBITE.  TO HELP
MEASURE THE COOLING EFFECTS OF WIND AND COLD AIR ON THE HUMAN
BODY, A VALUE KNOWN AS THE WIND CHILL TEMPERATURE WAS
DEVELOPED.  WHILE INANIMATE OBJECTS ARE NOT AFFECTED BY
WIND CHILL, WARM BLOODED ANIMALS, INCLUDING HUMANS, ARE
SUSCEPTIBLE TO THE COOLING AFFECTS FROM THE WIND.

TO ALERT PEOPLE TO THE DANGERS ASSOCIATED WITH THE
COMBINATION OF WIND AND COLD TEMPERATURES, THE NATIONAL
WEATHER SERVICE ISSUES WIND CHILL WARNINGS AND WIND CHILL
ADVISORIES.  THE FOLLOWING VALUES ARE USED FOR ALL OF NEW
HAMPSHIRE AND WESTERN AND SOUTHERN MAINE.

  WIND CHILL WARNINGS -   ISSUED FOR WIND CHILL TEMPERATURES
                          OF -30 DEGREES OR COLDER

  WIND CHILL ADVISORIES - ISSUED FOR WIND CHILL TEMPERATURES
                          BETWEEN -20 AND -30 DEGREES

EXTREMELY COLD TEMPERATURES, EVEN WITHOUT WIND, ALSO
INCREASE THE THREAT OF FROSTBITE, ESPECIALLY IF YOU ARE
OUTSIDE OVER AN EXTENDED PERIOD OF TIME.  BE SURE TO DRESS
APPROPRIATELY FOR ANY OUTSIDE ACTIVITIES ON COLD DAYS.


PREPAREDNESS TIP FOR THE DAY:

DURING VERY COLD AND WINDY DAYS, WEAR LAYERED CLOTHING.
EACH LAYER OF CLOTHING TRAPS A SMALL AMOUNT OF AIR THAT HELPS
INSULATE THE BODY FROM THE OUTSIDE COLD AND WIND.  THE TOP
LAYERS WILL CUT DOWN ON THE PENETRATION OF THE WIND, ALLOWING
THE LOWER LAYERS TO TRAP HEAT, THUS LOWERING THE AMOUNT OF
HEAT THAT THE WIND CAN CARRY AWAY FROM THE BODY.


QUESTION OF THE DAY:

DOES THE WIND CHILL TEMPERATURE AFFECT MY CAR OR CAR BATTERY?
WILL MY CAR BE HARDER TO START WHEN THE WIND CHILL
TEMPERATURE IS COLD?

  ANSWER: NO TO BOTH QUESTIONS.  YOUR CAR AND YOUR CAR`S
  BATTERY ARE AFFECTED ONLY BY THE ACTUAL
  TEMPERATURE.  WIND CHILL TEMPERATURES ARE A
  MEASURE OF THE RATE OF HEAT LOSS FROM THE HUMAN
  BODY.  FOR A CAR LEFT OVERNIGHT, THE TEMPERATURE
  OF THE CAR IS APPROXIMATELY THE SAME AS THE
  SURROUNDING AIR, SO THERE WOULD BE NO ADDITIONAL
  HEAT LOSS DUE TO WIND, HENCE NO WIND CHILL.  IN
  GENERAL, MORNING TEMPERATURES ARE COLDEST ON
  NIGHTS WITH LITTLE OR NO WIND.  THEREFORE, YOUR
  CAR BATTERY IS MORE LIKELY TO FAIL ON A NIGHT WITH
  LITTLE OR NO WIND THAN A WINDY NIGHT.


HERE`S A LISTING OF THE TOPICS THAT HAVE BEEN OR WILL BE
COVERED IN PUBLIC INFORMATION STATEMENTS DURING WINTER
WEATHER AWARENESS WEEK.

MONDAY...NOVEMBER 3     - WINTER WEATHER BASICS.
TUESDAY...NOVEMBER 4    - WATCH...WARNING...AND ADVISORY
                          CRITERIA FOR WINTER STORMS.
WEDNESDAY...NOVEMBER 5  - WIND CHILL...EXTREME COLD...
                          FROSTBITE AND HYPOTHERMIA.
THURSDAY...NOVEMBER 6   - HIGH WIND...COASTAL FLOOD...AND
                          DENSE FOG THREATS.
FRIDAY...NOVEMBER 7     - WINTER WEATHER PREPAREDNESS

$$

JENSENIUS
NATIONAL WEATHER SERVICE
GRAY, MAINE

NNNN



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.