Ozark Winters

  Outlook  | Extreme Cold  | Safety  |  Products  


Join Us in Promoting Winter Weather Awareness Day Nov. 14th, 2007

 

The National Weather Service (NWS), along with the Missouri State Emergency Management Agency (SEMA), the State Department of Elementary and Secondary Education, the Missouri Highway Patrol, and the Dept of Health and Senior Services has designated November 14, 2007 as Missouri Winter Weather Awareness Day. 
    


Winter Weather

Are  you prepared for winter storms? As the Ozarks region experienced last winter, winter storms can be devastating. Winter weather can change drastically across the Ozarks and southeast Kansas from mild temperatures and thunderstorms to bitter cold and snow within hours. To make matters worse, the rugged terrain makes winter weather conditions even more treacherous. 

A heavy accumulation of ice can down telephone poles and lines, trees, electrical wires, and communication towers. Power and communications may be disrupted for days. Heavy snow can immobilize the region and paralyze communities, stranding commuters, preventing the flow of supplies, and disrupting emergency and medical services. In rural areas, homes and farms may be isolated for days, and unprotected livestock may be lost.  

Take a look at the Winter 2006-2007 in review.




A good idea before winter arrives is to prepare a
winter storm plan and disaster supplies kit.  Check out these resources for more information on preparing disaster preparedness kits:

Check out our Winter Weather Page for winter weather outlooks and forecasts.


 

Winter Outlook

Above normal temperatures and near normal precipitation are expected across the region this winter.  However, the Ozarks will still experience a variety of winter weather conditions from mild spells to bitter cold.  People in the Ozarks should stayed tuned to the latest forecasts as winter weather conditions can change rapidly. 

Take a look at the
2007-2008 Winter Outlook for more details.

NOAA image of forecast winter precipitation for the USA.

NOAA image of forecast winter temperatures for the USA.

 


 

Take a look at Snowfall Statistics for Springfield, Joplin, West Plains and Rolla. Snowfall total maps from the past five winters.

 

2001-2002 2002-2003 2003-2004
2001-2002 snow 2002-2003 snow 2003-2004 snow
2004-2005 2005-2006 2006-2007
2004-2005 snow 2005-2006 Snow Totals 2006-2007 Snow Totals

 

For a look at daily snowfall across the country go to the National Operational Hydrologic Remote Sensing Center. This interactive site allows you to view a varitey of snowfall data including snow depth and snow water equivalent for the time and area of choice.
 


Winter Safety 

 

Winter storms are considered deceptive killers because most deaths are indirectly related to the storm. People die in traffic accidents on icy roads and from hypothermia due to prolonged exposure to cold.


During the historic ice storm of January 12-14, 2007 several indirect fatalities due to the extreme elements were documented. Carbon monoxide poisoning occurred within a few homes as gas generators were being used in garages, which allowed for dangerous levels of carbon monoxide to seep into houses.  Twenty six Missourians died during the 2006-2007 winter due to carbon monoxide poisoning.

To avoid the dangers of winter storms:

  • Avoid over exertion

  • Wear layers of loose fitting warm clothing

  • Have a winter storm survival kit in your home and vehicles, and be sure to receive the latest weather information from the NWS.

  • Be aware of carbon monoxide poisoning. Never use generators, grills, camp stoves, or other gasoline, propane, natural gas, or charcoal-burning devices inside your home, basement, garage, or camper—or even outside near an open window.

Deaths related to ice and snow:

  • 70% occur in automobiles
  • 25% are people caught out in the storm
  • Majority are males > 40 years old

Deaths related to exposure to cold:

  • 50% are people over 60 years old
  • 75% are males
  • 20% occur in the home

Cold Weather Disorders Which Require Immediate Medical Attention

Frostbite occurs when skin becomes cold enough to actually freeze. A loss of feeling and white or pale appearance in the extremities, such as fingers, toes, ear lobes, or the nose are symptoms of frostbite.

Hypothermia can occur during longer periods of exposure when the body temperature drops below 95F. A person will become disoriented, confused and shiver uncontrollably, eventually leading to drowsiness and apparent exhaustion. In severe cases, death is possible.

School Safety

Children can be especially susceptible to the dangers associated with winter weather. Their youthful enthusiasm often takes over when common sense and safety should prevail. School administrators and principals need to be sensitive to the dangers winter weather can pose to children and be prepared. Winter weather procedures and practices need to be established before the onset of winter cold. The following items should be considered when formulating a winter weather safety plan:

All schools should have ready access to current weather information. If the school is in a county covered by NOAA Weather Radio, that would be the best source. Commercial radio or television can also be monitored. Arrangements can also be made with local law enforcement agencies to have critical winter weather forecasts relayed to the school.

All schools need to have a functional plan in regard to closures due to snow, ice, or extreme cold.

School bus drivers should receive extra training on driving during winter weather. Snow and ice can often accumulate quickly and unexpectedly on roads creating dangerous driving conditions. Bus drivers should also be able to recognize signs of frostbite or hypothermia. 

With many households having two working parents today, it may be necessary for some children to be brought to school early. Schools should make provisions to allow children inside school buildings as early as possible during cold weather.

More safety information can be found at the following links:

NWS Winter Weather Safey Page

Centers for Disease Control and Prevention 

FEMA

Missouri State Emergency Management Agency


Extreme Cold 

Extreme cold is one of the leading weather related causes of death in Missouri. Since 1990, 130 lives have been lost due to extreme cold.   An often overlooked danger is wind chill. The wind chill is based on the rate of heat loss from exposed skin by combined effects of wind and cold. As the wind increases, heat is carried away from the body at an accelerated rate, driving down the body temperature. Animals are also effected by wind chill.

 

The wind chill shows how cold the wind makes exposed flesh feel and is a good way to determine the threat of frostbite or hypothermia.  For a quick look at forecast wind chill, to our Wind Chill Page.

 

The combined effects of wind and temperature can be measured using the following Wind Chill chart.

 

Click here for more wind chill information.

Wind 

Air Temperature (F)

(mph)

35

30

25

20

15

10

5

0

-5

-10

-15

5
31
25
19
13
7
1
-5 
-11
-16
-22
-28
10
27
21
15
9
3 
-4
-10
-16
-22
-28
-35
15
25
19
13
6 
0 
-7 
-13
-19
-26
-32
-39
20
24
17
11
4 
-2
-9
-15
-22
-29
-35
-42
25
23
16
9
3 
-4
-11
-17
-24
-31
-37
-44
30
22
14
8
1
-5
-12
-19 
-26
-33
-39
-46
35
21
14
7
0
-7
-14
-21
-27
-34
-41
-48
40
20
13
6
-1
-8
-15
-22
-29
-36
-43
-50
45
19
12
5
-2
-9
-16
-23
-30
-37
-44
-51

Calculate the wind chill factor


 Winter Products

Check out our Winter Weather Page for winter weather outlooks and forecasts. For a quick look at forecast wind chill, to our Wind Chill Page.

 To advise you of hazardous winter weather, your National Weather Service will issue the following products . . .

Winter Storm Watch: Severe winter weather including heavy snow, ice storm, blizzard, dangerous wind chills, or a combination of these items. Issued 12 to 48 hours in advance. 

Winter Storm Warning: Significant and possibly life-threatening severe winter weather will occur, or is about to begin. For example: A combination of significant snow ( > 3") and ice accumulations (> 1/8") that create dangerous and life threatening conditions. Issued within 12 to 18 hours of conditions.

Heavy Snow Warning:  Heavy snow accumulation of 6" or greater causing dangerous and potentially damaging situation such as treacherous travel conditions.

 

Ice Storm Warning: Heavy ice accumulation, generally greater than 1/4 of an inches  thick, causing dangerous and damaging situations, such as downed utility lines and icy roads.

Blizzard Warning: Wind at least 35 mph with falling or blowing snow reducing visibility to under ¼ mile for at least three hours.

High Wind Warning: Wind gusts 58 mph and higher or sustained winds at 40 mph and higher, for at least an hour.

Wind Chill Warning: Wind Chill values colder than 25 below zero.

ADVISORIES

Winter Weather Advisory: Any combination of winter events that cause significant inconvenience, but probably not life-threatening when caution is exercised. For example; 2-5 inches of snow, light sleet or freezing drizzle, some blowing and/or drifting snow etc…

Snow Advisory: New snowfall of 2 to 5 inches is expected.

Wind Advisory: Sustained winds between 31 and 40 mph.

Wind Chill Advisory: Wind chills of 15 below to 25 below zero.

Freezing Rain Advisory: Light ice coating on roads and highways, but no damage is expected to trees/power lines.

Blowing Snow Advisory: Wind-driven snow reducing visibility to ¼ mile or less.

Dense Fog Advisory: Widespread fog with visibility under ¼ mile.

 

OUTLOOKS


Hazardous Weather Outlook daily at 6 AM & 1 PM to highlight the potential of hazardous weather including winter storms, severe storms and flooding.

See the graphical hazardous weather outlook.


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