Hazelwood, Missouri Weather Conditions

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Current Conditions

  • 25°
  • Mostly Cloudy
  • Wind: ESE 12 mph
  • Humidity: 51%
  • Visibility: 10.0 miles
  • Dew Point: 9°
  • Pressure: 30.66 in. -
  • Heat Index: 14

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Next 12 Hours

12  pm
3  pm
6  pm
9  pm
12  am
Chance of Snow
Chance of Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
28°
28°
28°
32°
28°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Snow
  • High: 32 °
  • Low: 28 °
  • Snow
  • Sunday
  • Ice Pellets
  • High: 39 °
  • Low: 23 °
  • Ice Pellets
  • Monday
  • Rain
  • High: 41 °
  • Low: 28 °
  • Rain
  • Tuesday
  • Chance of Rain
  • High: 54 °
  • Low: 25 °
  • Chance of Rain
  • Wednesday
  • Partly Cloudy
  • High: 28 °
  • Low: 5 °
  • Partly Cloudy

Forecast for Hazelwood, Missouri

Updated: 9:00 AM CST on February 28, 2015

Winter Storm Warning in effect from noon today to 6 PM CST Sunday...
  • Saturday

    Overcast with snow in the afternoon. High of 32F with a windchill as low as 7F. Winds from the ESE at 5 to 10 mph. Chance of snow 90%.

  • Saturday Night

    Overcast with snow. Low of 28F. Winds from the ESE at 5 to 10 mph. Chance of snow 100% with accumulations up to 5 in. possible.

  • Sunday

    Overcast with ice pellets and snow. High of 39F. Winds less than 5 mph. Chance of precipitation 80% with accumulations up to 1 in. possible.

  • Sunday Night

    Overcast in the evening, then mostly cloudy. Low of 23F. Winds from the NW at 5 to 10 mph.

  • Monday

    Mostly cloudy. High of 41F. Winds from the North at 5 to 10 mph shifting to the East in the afternoon. Chance of rain 20%.

  • Monday Night

    Overcast with snow, then a chance of snow after midnight. Low of 28F with a windchill as low as 19F. Winds from the SE at 10 to 15 mph. Chance of snow 30%.

  • Tuesday

    Overcast with a chance of rain. High of 54F. Breezy. Winds from the South at 10 to 20 mph. Chance of rain 80% with rainfall amounts near 0.9 in. possible.

  • Tuesday Night

    Overcast with a chance of snow. Low of 25F. Windy. Winds from the WNW at 20 to 30 mph.

  • Wednesday

    Overcast. High of 28F with a windchill as low as 5F. Breezy. Winds from the NNW at 15 to 25 mph.

  • Wednesday Night

    Partly cloudy. Low of 5F. Breezy. Winds from the NNW at 15 to 20 mph.

  • Thursday

    Clear. High of 28F with a windchill as low as -9F. Winds from the NNW at 10 to 15 mph.

  • Thursday Night

    Clear. Low of 23F. Winds from the ENE at 5 to 10 mph shifting to the SSE after midnight.

  • Friday

    Clear. High of 46F. Winds from the SSW at 10 to 15 mph.

  • Friday Night

    Clear. Low of 32F with a windchill as low as 25F. Winds from the SW at 10 to 15 mph.

  • Saturday

    Clear. High of 45F. Breezy. Winds from the WSW at 15 to 20 mph shifting to the NW in the afternoon.

  • Saturday Night

    Clear. Low of 27F. Winds from the West at 5 to 15 mph shifting to the South after midnight.

  • Sunday

    Clear. High of 46F. Winds from the South at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 30F with a windchill as low as 23F. Winds from the South at 5 to 10 mph.

  • Monday

    Clear. High of 48F. Winds from the South at 5 to 10 mph.

  • Monday Night

    Clear. Low of 36F. Winds from the South at 5 to 10 mph.

  • Tuesday

    Clear. High of 52F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Low of 36F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Winter Storm Warning  Statement as of 4:15 am CST on February 28, 2015


... Winter Storm Warning in effect from noon today to 6 PM CST
Sunday...

The National Weather Service in St Louis has issued a Winter
Storm Warning for heavy snow... which is in effect from noon today
to 6 PM CST Sunday. The Winter Weather Advisory is no longer in
effect.

* Timing... snow is expected to begin early this afternoon and
continue through the daylight hours of Sunday. Some sleet may
mix in with the snow on Sunday.

* Accumulations... 6 to 7 inches of snow.

* Winds... southeast 5 to 10 mph.

* Impacts... the wintry precipitation will result in hazardous
travel conditions... especially on bridges... overpasses... and
untreated roads. Parking lots and sidewalks will become
slippery as well.

Precautionary/preparedness actions...

A Winter Storm Warning means that 6 inches or more of snow is
expected. The rapid accumulation of snow will make travel
extremely difficult... if not impossible. If travel is necessary...
make sure to exercise caution. Begin your travel with a tank full
of gas... and carry a winter storm kit which includes a shovel...
flashlight... cellphone... and blankets of extra warm clothing.







Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Riverwood Place, Florissant, MO

Updated: 11:22 AM CST

Temperature: 27.1 °F Dew Point: 14 °F Humidity: 56% Wind: SSW at 1.0 mph Pressure: 30.67 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: 1 Mile South of St. Louis Lambert Airport, Woodson Terrace, MO

Updated: 11:22 AM CST

Temperature: 24.8 °F Dew Point: 13 °F Humidity: 60% Wind: SSE at 3.0 mph Pressure: 30.66 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: St. Ann, MO, St. Ann, MO

Updated: 11:10 AM CST

Temperature: 26.2 °F Dew Point: 11 °F Humidity: 53% Wind: SW at 2.2 mph Pressure: 30.52 in Hourly Precipitation: - Windchill: 26 °F Graphs

Location: Jost Farm, Florissant, MO

Updated: 11:20 AM CST

Temperature: 26.1 °F Dew Point: 7 °F Humidity: 43% Wind: ENE at 8.3 mph Pressure: 30.14 in Hourly Precipitation: 0.00 in Windchill: 17 °F Graphs

Location: APRSWXNET Maryland Heights MO US, Maryland Heights, MO

Updated: 10:49 AM CST

Temperature: 26 °F Dew Point: 12 °F Humidity: 56% Wind: Calm Pressure: 30.63 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Maryland Heights, St Louis, MO

Updated: 11:21 AM CST

Temperature: 25.4 °F Dew Point: 11 °F Humidity: 55% Wind: ESE at 6.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Windchill: 18 °F Graphs

Location: Riverside at Albers Pointe, Florissant, MO

Updated: 11:05 AM CST

Temperature: 27.3 °F Dew Point: 10 °F Humidity: 50% Wind: North at - Pressure: 30.58 in Hourly Precipitation: - Windchill: 27 °F Graphs

Location: Alber Pointe Drive, Florissant, MO

Updated: 11:21 AM CST

Temperature: 28.8 °F Dew Point: 11 °F Humidity: 48% Wind: North at - Pressure: 30.57 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Fox Hill, Saint Charles, MO

Updated: 11:22 AM CST

Temperature: 31.6 °F Dew Point: 12 °F Humidity: 43% Wind: SSE at 6.3 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 11:22 AM CST

Temperature: 26.9 °F Dew Point: 12 °F Humidity: 53% Wind: Calm Pressure: 30.63 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: City of Olivette - Public Works, Olivette, MO

Updated: 11:22 AM CST

Temperature: 26.1 °F Dew Point: 12 °F Humidity: 54% Wind: SE at 4.0 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 21 °F Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 11:22 AM CST

Temperature: 27.0 °F Dew Point: 11 °F Humidity: 50% Wind: NE at 1.8 mph Pressure: 30.59 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 11:22 AM CST

Temperature: 27.6 °F Dew Point: 13 °F Humidity: 53% Wind: SSE at 1.0 mph Pressure: 30.68 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 11:22 AM CST

Temperature: 27.7 °F Dew Point: 13 °F Humidity: 54% Wind: WSW at 1.1 mph Pressure: 30.53 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Honeygrove Court, Saint Louis, MO

Updated: 11:20 AM CST

Temperature: 27.3 °F Dew Point: 11 °F Humidity: 49% Wind: North at - Pressure: 30.63 in Hourly Precipitation: - Windchill: 27 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 11:22 AM CST

Temperature: 27.1 °F Dew Point: 13 °F Humidity: 54% Wind: South at 4.2 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 11:21 AM CST

Temperature: 27.0 °F Dew Point: 13 °F Humidity: 56% Wind: SSW at 4.0 mph Pressure: 30.63 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 11:22 AM CST

Temperature: 26.2 °F Dew Point: 11 °F Humidity: 52% Wind: NNW at 1.2 mph Pressure: 30.60 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: CommuniTree Gardens Nursery, St. Louis, MO

Updated: 11:21 AM CST

Temperature: 26.1 °F Dew Point: 12 °F Humidity: 54% Wind: SSE at 4.0 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Windchill: 21 °F Graphs

Location: Huntington Downs, Saint Charles, MO

Updated: 11:20 AM CST

Temperature: 25.7 °F Dew Point: 12 °F Humidity: 57% Wind: North at - Pressure: 30.60 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 11:22 AM CST

Temperature: 26.6 °F Dew Point: 12 °F Humidity: 54% Wind: ESE at 6.0 mph Pressure: 30.64 in Hourly Precipitation: 0.00 in Windchill: 20 °F Graphs

Location: APRSWXNET Ladue MO US, Saint Louis, MO

Updated: 10:50 AM CST

Temperature: 24 °F Dew Point: 11 °F Humidity: 58% Wind: Calm Pressure: 30.65 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Creve Coeur, Saint Louis, MO

Updated: 11:22 AM CST

Temperature: 26.6 °F Dew Point: 3 °F Humidity: 36% Wind: NE at 1.3 mph Pressure: 30.57 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Ladue Meadows, Creve Coeur, MO

Updated: 11:22 AM CST

Temperature: 29.3 °F Dew Point: 14 °F Humidity: 53% Wind: ENE at 3.0 mph Pressure: 30.39 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Ladue, St. Louis, MO

Updated: 11:20 AM CST

Temperature: 25.2 °F Dew Point: - Humidity: 48% Wind: North at - Pressure: 29.94 in Hourly Precipitation: - Windchill: 25 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 11:22 AM CST

Temperature: 23.0 °F Dew Point: 10 °F Humidity: 58% Wind: East at 3.0 mph Pressure: 30.59 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 11:22 AM CST

Temperature: 29.4 °F Dew Point: 9 °F Humidity: 42% Wind: SSE at 8.1 mph Pressure: 30.60 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 11:16 AM CST

Temperature: 26.3 °F Dew Point: -10 °F Humidity: 19% Wind: Calm Pressure: 30.66 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Foxborough Estates, St. Charles, MO

Updated: 11:22 AM CST

Temperature: 27.7 °F Dew Point: 13 °F Humidity: 53% Wind: ESE at 1.0 mph Pressure: 30.65 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated aviation 
National Weather Service St Louis MO 
1001 am CST Sat Feb 28 2015 


Short term: (through Monday night) 
issued at 358 am CST Sat Feb 28 2015 


A busy forecast stretch thru Monday night, primarily concerned with 
wintry wx. 


A small area of flurries is currently occurring over central and 
southeast MO and is mainly associated with an area of decent 
broadscale lift that is also getting a bit of warm air advection and moisture 
convergence as well to produce the pcpn. Short-term progs indicate 
that this "perfect blend" of lift will weaken or exit the area by or 
shortly after 12z to result in this ending early this morning. In 
any event, this is not the main wx item we are concerned with this 
morning. 


The general overview remains the same: two areas/episodes of pcpn 
will affect our region thru Monday night in response to pieces of 
energy ejecting from a large storm system over the southwest Continental U.S.. 
the first will occur today thru Sunday and the second will occur 
Monday night and beyond. 


What has changed: the models have come in a bit further south with 
the Max quantitative precipitation forecast axis and are faster with the onset today. They are also 
colder, and as a result, snowier for much of the first episode of 
pcpn thru Sunday and for more of the County Warning Area than before. There is good 
agreement between the NAM/Gem/ec on the placement of the Max quantitative precipitation forecast 
axis following up I-44 in MO and I-70 in IL, and likewise reducing 
values from the previous forecast most substantially in northeast 
MO. The GFS shows something similar but has a much broader swath 
and reduces the northern quantitative precipitation forecast much less. 


The GFS seems to adequately take in the new southern trends while 
retaining some continuity with the previous forecast, plus prefer 
its handling of Sunday, where decent frontogenesis will remain over 
I-70 in MO and Illinois thru much of the day and should result in 
continued pcpn, whereas the NAM was much too quick to sweep it out 
and rejected. 


Vertical temp profiles now show a fairly high warm wedge of air 
aloft late tonight and into Sunday that should be more generous to 
frozen pcpn with the deeper cold layer and so was reluctant to go 
liquid pcpn anywhere until some area further south of the 0c line at 
h850, again maintaining some continuity with previous forecast on 
pcpn types but given these new vertical temp profile numbers, may 
struggle to see freezing rain hardly anywhere with the tonight-Sunday event. 


Bottom line: snow amounts were upped to 4-7" in stl Metro and areas 
just to their north and NE, enough to consider a warning upgrade, and 
they were also upped in much of southeast MO as well with less ice as a 
result, but enough to probably still get a light glaze. Sleet will 
be the wildcard in southeast MO where amounts there may force a 
warning ultimately. Snow amounts were edged down in northeast MO 
and may need to be further knocked down as confidence on this 
southward shift grows. At least winter wx advisories to continue, 
with earlier start times, for the entire area thru early Sunday 
evening. 


It now appears like more of a break for later Sunday night and into 
early Monday evening before round 2 appears. But colder solutions 
thru that time now favor a bit more freezing rain further south into stl 
Metro but even then it looks to be pretty brief with rising temps 
thanks to a strengthening southerly flow with warm frontal passage. 


Tes 


Long term: (tuesday through friday) 
issued at 358 am CST Sat Feb 28 2015 


Longwave trof bottoming out over Southern California will provide 
southwest flow through the depth of the atmosphere over the mid- 
Mississippi Valley on Tuesday. Medium range guidance has strong 
return flow with an open Gulf of Mexico providing plenty of 
moisture; although the GFS is much more aggressive than the European model (ecmwf) 
in this regard. A shortwave moving off The Rockies in the 
southwest flow forces Lee-side cyclogenesis over Colorado and 
western Kansas Tuesday morning and the low moves rapidly east- 
northeast to near Chicago by 00z Wednesday. GFS quantitative precipitation forecast is impressive 
ahead of the cold front, perhaps overdone due to its stronger 
moisture return, but ensemble pops of likely or higher look 
reasonable due to the strong moisture convergence ahead of the 
front. Have continued the chances for thunderstorms due to the 
strong lift and good potential for unstable air to be drawn up 
into the area from the south. Temperatures should fall sharply 
behind the cold front as the full-latitude trof moves east into 
the Great Plains Tuesday night opening the door for another very 
cold Canadian airmass to move south. The low level baroclinic zone 
does not move south very fast in the current model runs, and 
another shortwave ripples northeast out of the base of the trof 
late Wednesday night, moving over the baroclinic zone and 
generating another round of precip. This precipitation looks to 
fall the cold air behind the front...mainly along and south of the 
I-70 corridor. Kept high chance to likely pops for snow in these 
areas Tuesday night into Wednesday. The longwave trof will sweep 
east Wednesday night and cold high pressure will finally move over 
the area Thursday bringing drier weather to the area for the end 
of the week. Temperatures should be well below normal for at least 
Wednesday and Thursday as the Canadian high builds overhead. 
Friday looks to warm up to near normal as southerly flow develops 
when the high moves east of the area. 


Carney 


&& 


Aviation: (for the 18z tafs through 18z Sunday afternoon) 
issued at 948 am CST Sat Feb 28 2015 


Snow gradually moving into the area. Looking at isentropic 
surfaces it looks like the best lift will be this afternoon up 
until about 06z. Ligth snow still beyond that but significant 
accumulating snow may taper off. Timing for cou around 18z and uin 
about 21z. Will back off on the quick drop to IFR ceilings based 
on what is out there. Plenty of sites going 3 - 5sm -sn with VFR 
ceilings. But once it sets in, IFR will stay around through 18z 
Sunday. Southeast wind will remain until front moves in Sunday. 


Specifics for kstl: at this time, I don't see IFR right off The 
Bat at the beginning of the snow. That has not happened at sites 
to the southwest so will back off a bit and bring in IFR more 
gradually, by 00z. After that, not much change with light snow and 
IFR ceilings likely through 18z Sunday if not longer. 


Jpk 


&& 


Lsx watches/warnings/advisories: 
MO...Winter Weather Advisory until noon CST Sunday for Crawford MO- 
Iron MO-Madison MO-Reynolds MO-St. Francois MO-Ste. 
Genevieve MO-Washington MO. 


Winter Storm Warning until 6 PM CST Sunday for Lincoln MO-St. 
Charles MO-St. Louis city MO-St. Louis MO-Warren MO. 


Winter Weather Advisory until 6 PM CST Sunday for Audrain MO- 
Boone MO-Callaway MO-Cole MO-Franklin MO-Gasconade MO- 
Jefferson MO-Knox MO-Lewis MO-Marion MO-Moniteau MO-Monroe 
MO-Montgomery MO-Osage MO-Pike MO-Ralls MO-Shelby MO. 


Illinois...Winter Storm Warning until 6 PM CST Sunday for Calhoun Illinois-Greene 
Illinois-Jersey Illinois. 


Winter Weather Advisory until 6 PM CST Sunday for Adams Illinois-Brown 
Illinois-Pike Illinois. 


Winter Storm Warning from 3 PM this afternoon to 6 PM CST Sunday 
for Bond Illinois-Clinton Illinois-Fayette Illinois-Macoupin Illinois-Madison Illinois- 
Montgomery IL-St. Clair Illinois. 


Winter Weather Advisory from 3 PM this afternoon to 6 PM CST 
Sunday for Marion Illinois-Monroe Illinois-Washington Illinois. 


Winter Weather Advisory from 3 PM this afternoon to noon CST 
Sunday for Randolph Illinois. 


&& 


$$ 


Weather forecast office lsx 












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