Crystal City, Missouri Weather Conditions

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Current Conditions

  • 15°
  • Overcast
  • Wind: ENE 6 mph
  • Humidity: 59%
  • Visibility: 10.0 miles
  • Dew Point: 3°
  • Pressure: 30.68 in. 0
  • Heat Index: 6

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Next 12 Hours

12  am
3  am
6  am
9  am
12  pm
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
18°
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30°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Snow
  • High: 32 °
  • Low: 27 °
  • Snow
  • Sunday
  • Ice Pellets
  • High: 45 °
  • Low: 25 °
  • Ice Pellets
  • Monday
  • Rain
  • High: 45 °
  • Low: 30 °
  • Rain
  • Tuesday
  • Chance of a Thunderstorm
  • High: 63 °
  • Low: 14 °
  • Chance of T-Storms
  • Wednesday
  • Partly Cloudy
  • High: 27 °
  • Low: 14 °
  • Partly Cloudy

Forecast for Crystal City, Missouri

Updated: 9:00 PM CST on February 27, 2015

Winter Weather Advisory in effect from 6 PM Saturday to 6 PM CST Sunday...
  • Saturday

    Mostly cloudy with a chance of snow in the afternoon. High of 32F with a windchill as low as 0F. Winds from the ESE at 5 to 10 mph. Chance of snow 20%.

  • Saturday Night

    Overcast with snow. Low of 27F with a windchill as low as 21F. Winds from the ESE at 5 to 10 mph. Chance of snow 80% with accumulations up to 2 in. possible.

  • Sunday

    Overcast with ice pellets and snow, then snow and rain in the afternoon. High of 45F. Winds from the South at 5 to 10 mph. Chance of precipitation 70% .

  • Sunday Night

    Overcast with ice pellets and a chance of snow. Low of 25F. Winds from the NW at 5 to 10 mph. Chance of precipitation 30% .

  • Monday

    Mostly cloudy. High of 45F. Winds from the NE at 5 to 10 mph shifting to the West in the afternoon. Chance of rain 20%.

  • Monday Night

    Overcast with rain, then a chance of snow and rain showers after midnight. Low of 30F with a windchill as low as 21F. Winds from the South at 10 to 15 mph. Chance of precipitation 30% with accumulations up to 1 in. possible.

  • Tuesday

    Overcast with a chance of a thunderstorm and rain, then a chance of rain in the afternoon. Fog early. High of 63F. Breezy. Winds from the South at 10 to 30 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.

  • Tuesday Night

    Overcast with a chance of snow. Low of 14F. Windy. Winds from the WNW at 25 to 30 mph. Chance of snow 20%.

  • Wednesday

    Mostly cloudy. High of 27F with a windchill as low as 7F. Breezy. Winds from the NW at 20 to 25 mph.

  • Wednesday Night

    Partly cloudy. Low of 14F. Breezy. Winds from the NW at 10 to 20 mph.

  • Thursday

    Clear. High of 32F with a windchill as low as 9F. Winds from the WNW at 10 to 15 mph.

  • Thursday Night

    Clear. Low of 21F with a windchill as low as 12F. Winds from the South at 10 to 15 mph.

  • Friday

    Clear. High of 46F. Breezy. Winds from the SSW at 15 to 20 mph.

  • Friday Night

    Clear. Low of 30F. Winds from the SSW at 10 to 15 mph.

  • Saturday

    Clear. High of 43F. Winds from the SSW at 5 to 15 mph.

  • Saturday Night

    Clear. Fog overnight. Low of 27F. Winds less than 5 mph.

  • Sunday

    Clear. High of 45F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 32F. Winds from the SSE at 5 to 10 mph.

  • Monday

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

  • Monday Night

    Clear. Fog overnight. Low of 36F. Winds from the SSE at 5 to 10 mph.

  • Tuesday

    Clear. High of 50F. Winds less than 5 mph.

  • Tuesday Night

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

Severe Weather Alert Descriptions

 Winter Weather Advisory  Statement as of 4:12 PM CST on February 27, 2015


... Winter Weather Advisory in effect from 6 PM Saturday to 6 PM
CST Sunday...

The National Weather Service in St Louis has issued a Winter
Weather Advisory for snow... which is in effect
from 6 PM Saturday to 6 PM CST Sunday.

* Timing... snow is expected to move into the advisory area early
Saturday evening and continue into Sunday morning. The
precipitation over east-central Missouri and south-central
Illinois is expected to mix with freezing rain and sleet Sunday
morning and possibly rain by Sunday afternoon before ending.

* Accumulations... 2 to 5 inches. A light glazing of ice is
possible for east-central Missouri and portions of south-central
Illinois.

* 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 Weather Advisory is issued for a variety of winter
weather conditions... such as snow... blowing snow... sleet... or
freezing drizzle and rain. It only takes a small amount of wintry
precipitation to make roads... bridges... sidewalks... and parking
lots icy and dangerous. It is often difficult to tell when ice
begins to form... so do not be caught off guard.






Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Herculaneum, Mott Street, Herculaneum, MO

Updated: 12:40 AM CST

Temperature: 17.2 °F Dew Point: - Humidity: - Wind: North at - Pressure: 30.17 in Hourly Precipitation: - Windchill: 17 °F Graphs

Location: APRSWXNET Pevely MO US, Pevely, MO

Updated: 12:10 AM CST

Temperature: 16 °F Dew Point: 8 °F Humidity: 69% Wind: NE at 1 mph Pressure: 30.65 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: On The Bluffs, Waterloo, IL

Updated: 12:48 AM CST

Temperature: 15.6 °F Dew Point: 5 °F Humidity: 63% Wind: Calm Pressure: 30.58 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: APRSWXNET Imperial MO US, Imperial, MO

Updated: 12:14 AM CST

Temperature: 18 °F Dew Point: 10 °F Humidity: 69% Wind: ESE at 1 mph Pressure: 30.66 in Hourly Precipitation: 0.00 in Windchill: 18 °F Graphs

Location: Hillsboro, Missouri, Hillsboro, MO

Updated: 12:44 AM CST

Temperature: 16.0 °F Dew Point: 7 °F Humidity: 66% Wind: ESE at 2.7 mph Pressure: 30.40 in Hourly Precipitation: - Windchill: 16 °F Graphs

Location: summerfield, Imperial, MO

Updated: 12:48 AM CST

Temperature: 16.2 °F Dew Point: -7 °F Humidity: 35% Wind: Calm Pressure: 30.40 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: APRSWXNET Arnold MO US, Sulphur Springs, MO

Updated: 12:06 AM CST

Temperature: 15 °F Dew Point: 6 °F Humidity: 67% Wind: Calm Pressure: 30.66 in Hourly Precipitation: 0.00 in Windchill: 15 °F Graphs

Location: Ste Genevieve county, Festus, MO

Updated: 12:46 AM CST

Temperature: 16.8 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Windchill: 17 °F Graphs

Location: MesoWest WARNK1 IL US UPR, Columbia, IL

Updated: 12:00 AM CST

Temperature: 14 °F Dew Point: - Humidity: - Wind: North at 255 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: -28 °F Graphs

Location: MesoWest HLCRST MO US UPR, Saint Louis, MO

Updated: 12:00 AM CST

Temperature: 16 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: Chesapeake on the Bluff, Columbia, IL

Updated: 12:48 AM CST

Temperature: 15.4 °F Dew Point: -1 °F Humidity: 48% Wind: ENE at 2.5 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Windchill: 15 °F Graphs

Location: Guardian Court, Arnold, MO

Updated: 12:45 AM CST

Temperature: 17.4 °F Dew Point: 4 °F Humidity: 56% Wind: North at - Pressure: 30.61 in Hourly Precipitation: - Windchill: 17 °F Graphs

Location: Rosewood Korner, Waterloo, IL

Updated: 12:48 AM CST

Temperature: 14.9 °F Dew Point: 6 °F Humidity: 66% Wind: East at 7.3 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: 5 °F Graphs

Location: Arrowhead STL County, Saint Louis, MO

Updated: 12:47 AM CST

Temperature: 15.1 °F Dew Point: 3 °F Humidity: 58% Wind: East at 2.7 mph Pressure: 30.70 in Hourly Precipitation: - Windchill: 15 °F Graphs

Location: Hardy Acres / AA9UC, Waterloo, IL

Updated: 12:47 AM CST

Temperature: 15.1 °F Dew Point: 1 °F Humidity: 54% Wind: NNE at 3.8 mph Pressure: 30.71 in Hourly Precipitation: 0.00 in Windchill: 9 °F Graphs

Location: Arnold # 1, Arnold, MO

Updated: 12:44 AM CST

Temperature: 15.6 °F Dew Point: 6 °F Humidity: 65% Wind: ESE at 2.2 mph Pressure: 30.68 in Hourly Precipitation: - Windchill: 16 °F Graphs

Location: Wynfield Terrace, St. Louis, MO

Updated: 12:48 AM CST

Temperature: 16.0 °F Dew Point: -0 °F Humidity: 48% Wind: Calm Pressure: 30.65 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: Arnold, Arnold, MO

Updated: 12:36 AM CST

Temperature: 15.6 °F Dew Point: 6 °F Humidity: 66% Wind: Calm Pressure: 30.66 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: Arnold, MO

Updated: 12:38 AM CST

Temperature: 15.8 °F Dew Point: 8 °F Humidity: 71% Wind: Calm Pressure: 30.66 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: APRSWXNET Cedar Hill MO US, Cedar Hill, MO

Updated: 12:12 AM CST

Temperature: 16 °F Dew Point: 7 °F Humidity: 67% Wind: Calm Pressure: 30.69 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: ARNOLD, Arnold, MO

Updated: 12:40 AM CST

Temperature: 14.0 °F Dew Point: - Humidity: 59% Wind: North at - Pressure: 29.89 in Hourly Precipitation: - Windchill: 14 °F Graphs

Location: Oakville, Cliffwood Trail, Oakville, MO

Updated: 12:48 AM CST

Temperature: 16.5 °F Dew Point: -1 °F Humidity: 46% Wind: Calm Pressure: 30.74 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: Christopher Winds, Oakville, MO

Updated: 12:48 AM CST

Temperature: 15.8 °F Dew Point: 7 °F Humidity: 67% Wind: Calm Pressure: 30.65 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: Rock Creek Terrace, High Ridge, MO

Updated: 12:48 AM CST

Temperature: 13.0 °F Dew Point: 5 °F Humidity: 70% Wind: East at 1.0 mph Pressure: 30.59 in Hourly Precipitation: 0.00 in Windchill: 13 °F Graphs

Location: Oakville, Cardinal Creek Subd, Oakville, MO

Updated: 12:48 AM CST

Temperature: 15.1 °F Dew Point: 6 °F Humidity: 67% Wind: ENE at 4.0 mph Pressure: 30.67 in Hourly Precipitation: 0.00 in Windchill: 9 °F Graphs

Location: Devall's Backyard, Waterloo, IL

Updated: 12:39 AM CST

Temperature: 17.2 °F Dew Point: 6 °F Humidity: 61% Wind: North at 2.6 mph Pressure: 30.61 in Hourly Precipitation: - Windchill: 17 °F Graphs

Location: Saint Louis County, Saint Louis County, MO

Updated: 12:45 AM CST

Temperature: 15.5 °F Dew Point: 6 °F Humidity: 65% Wind: East at 1.0 mph Pressure: 30.71 in Hourly Precipitation: 0.00 in Windchill: 15 °F Graphs

Location: Oakville, Providence Pointe, Oakville, MO

Updated: 12:48 AM CST

Temperature: 15.4 °F Dew Point: 5 °F Humidity: 64% Wind: NE at 4.0 mph Pressure: 30.72 in Hourly Precipitation: 0.00 in Windchill: 9 °F Graphs

Location: Brookton Oaks Drive, Cedar Hill, MO

Updated: 12:46 AM CST

Temperature: 18.1 °F Dew Point: 4 °F Humidity: 55% Wind: North at - Pressure: 30.53 in Hourly Precipitation: - Windchill: 18 °F Graphs

Location: Olde Mill Estates, Byrnes Mill, MO

Updated: 12:48 AM CST

Temperature: 14.9 °F Dew Point: -2 °F Humidity: 45% Wind: SSE at 4.5 mph Pressure: 30.66 in Hourly Precipitation: 0.00 in Windchill: 8 °F Graphs

Location: Cathedral Drive, Saint Louis, MO

Updated: 12:45 AM CST

Temperature: 16.0 °F Dew Point: 6 °F Humidity: 64% Wind: North at - Pressure: 30.72 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: APRSWXNET Milstadt IL US, Waterloo, IL

Updated: 12:06 AM CST

Temperature: 14 °F Dew Point: 6 °F Humidity: 69% Wind: Calm Pressure: 30.61 in Hourly Precipitation: 0.00 in Windchill: 14 °F Graphs

Location: Gedern Village, Columbia, IL

Updated: 12:47 AM CST

Temperature: 16.0 °F Dew Point: 6 °F Humidity: 64% Wind: NE at 2.0 mph Pressure: 30.70 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: Gerry's Pool, Prairie Du Rocher, IL

Updated: 12:48 AM CST

Temperature: 17.4 °F Dew Point: 9 °F Humidity: 68% Wind: Calm Pressure: 30.78 in Hourly Precipitation: 0.00 in Windchill: 17 °F Graphs

Location: High Ridge Fire District House #1, High Ridge, MO

Updated: 12:40 AM CST

Temperature: 16.4 °F Dew Point: 7 °F Humidity: 67% Wind: ENE at 9.0 mph Pressure: 30.65 in Hourly Precipitation: 0.00 in Windchill: 5 °F Graphs

Location: MesoWest I-255 / IL-3 @ Columbia IL US ILDOT, Columbia, IL

Updated: 11:55 PM CST

Temperature: 16 °F Dew Point: 4 °F Humidity: 59% Wind: SE at 4 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 10 °F Graphs

Location: MesoWest KIDD1 IL US UPR, Prairie Du Rocher, IL

Updated: 11:50 PM CST

Temperature: 16 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: K0GDI, Blackwell, MO

Updated: 11:51 PM CST

Temperature: 18.0 °F Dew Point: 10 °F Humidity: 69% Wind: Calm Pressure: 30.53 in Hourly Precipitation: 0.00 in Windchill: 18 °F Graphs

Location: Jefferson Barracks, Mehlville, MO

Updated: 12:48 AM CST

Temperature: 14.2 °F Dew Point: 1 °F Humidity: 55% Wind: North at 7.3 mph Pressure: 30.64 in Hourly Precipitation: 0.00 in Windchill: 4 °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 
1159 PM CST Fri Feb 27 2015 


Update: 
issued at 928 PM CST Fri Feb 27 2015 


Area of snow is across northeast OK/southwest MO/northwest Arkansas is 
having trouble pushing into south-central and southeast Missouri 
due to dry low-level air. Top-down saturation has been very slow 
and believe this will continue through tonight. Cannot rule out 
some light snow across southeast Missouri...but probability of 
measuring precipitation still appears quite low. Tweaks to rest of 
tonight's forecast included increasing sky cover for the southern 
half of the area and correspondingly boosting mins a degree or two 
for these areas. Near steady temperatures appear likely for some 
of these locations. 


Regarding the winter storm beginning tomorrow...did speed up the 
onset of snow approximately 3 hours for most areas. Latest 
guidance continues to indicate strong isentropic ascent in 
conjunction with weak positive vorticity advection and ul divergence aloft. Given that 
models are notoriously slow with onset of precipitation with a 
strong component of forcing via warm air advection...believe a quicker onset is 
the way to go. With a quicker onset of snow...did boost snow 
amounts for portions of the area tomorrow afternoon. Axis of 
heaviest snow for the event as a whole may also need to be 
adjusted slightly southward if latest 0z NAM is correct as it has 
come in colder/further southward. 


Gosselin 


&& 


Short term: (through late tonight) 
issued at 354 PM CST Fri Feb 27 2015 


Not too many issues for the forecast overnight. Increasing high 
and mid level clouds with a light wind transitioning to easterly 
Saturday morning. Despite the clouds, have lowered low temps just 
a bit along our eastern border mainly due to deeper snow depth. A 
solid 4 - 6 inches on the ground there should keep low temps on 
the low side, which matches the mav guidance pretty good. 


Jpk 


Long term: (saturday through next friday) 
issued at 354 PM CST Fri Feb 27 2015 


Primary focus remains on the Sat/sun system and another one early 
next week. A four-segment Winter Weather Advisory will be issued 
for the Sat/sun system to handle progressive onset of pcpn (west 
to east), p-type variation (snow in the north vs. Mix in the 
south), and very flexible headline criteria for collaboration. 


Sat/Sun: widespread pcpn expected especially Sat night into sun. 
Favorable factors include strong isentropic ascent between 
290-305k, strong frontogenesis in h9-800 mb & 800 mb-700 mb layers, mconv 850 mb 
low level jet on sun, and precipitable water values of 0.6-0.8". Initial thoughts are around 
3-5" of snow across the northern County Warning Area and about 1-3" across the 
southern County Warning Area plus a light glaze of freezing rain and sprinkling of ice pellets at 
times across the southern half when warmer air spreads northward 
on Sun morning. Transition to liquid across the south with 
continued low level warming then back to wintry mix with cooling. 
Further refinements likely. Many repeated adjustments were needed 
to many individual grids for near seamlessness at the expense of 
other fcst details. 


Quasizonal flow aloft becomes swly aloft on sun/Mon after a piece 
of the large cutoff low over California/Baja California ejects ewd in response to 
an upstream kicker trof. Most areas probably see a break in pcpn 
on Sun night/Mon between systems. 


Mon/Tue: pcpn expected with the lifting wmfnt on Mon night and 
also with the sfc low on Tue/early Tue night. Favorable factors 
include backbuilding 500 mb jet and rer dynamics on Tue, strong 
mid/upper vort Max, precipitable water values in excess of 1" (aoa +2sd for mar), 
and strong mconv with 850 mb low level jet. Marked warmup on Tue-- highs reach 
mid to upper 50s on the warm side of the warm front. Conditions 
are favorable for scattered thunderstorms at times. Colder temps 
return behind the cdfnt and remain across the region through the 
middle/end of the week. 


42 


&& 


Aviation: (for the 06z tafs through 06z Saturday night) 
issued at 1143 PM CST Fri Feb 27 2015 


Only minor changes to timing were made compared to prev taf. More 
uncertainty exists regarding visbys at uin as main wave of precip 
may remain just S of the terminal. However, believe that IFR 
conditions are likely either thru visbys or cigs. Elsewhere, 
expect main band of snow to Orient itself over cou and gradually 
sink S to impact sus/cps. 


Specifics for kstl: only minor changes in timing were made to the 
prev taf. Believe initial band will move ewd just north of the 
terminal, but will gradually sink swd. While uncertainty remains 
regarding visbys beyond 00z, believe conditions will remain in IFR 
Cat. 


Tilly 


&& 


Lsx watches/warnings/advisories: 
MO...Winter Weather Advisory from noon Saturday to noon CST Sunday 
for Crawford MO-Iron MO-Reynolds MO-Washington MO. 


Winter Weather Advisory from 6 PM Saturday to noon CST Sunday 
for Madison MO-St. Francois MO-Ste. Genevieve MO. 


Winter Weather Advisory from noon Saturday to 6 PM CST Sunday 
for Audrain MO-Boone MO-Callaway MO-Cole MO-Franklin MO- 
Gasconade MO-Knox MO-Lewis MO-Lincoln MO-Marion MO-Moniteau 
MO-Monroe MO-Montgomery MO-Osage MO-Pike MO-Ralls MO-Shelby 
MO-Warren MO. 


Winter Weather Advisory from 6 PM Saturday to 6 PM CST Sunday 
for Jefferson MO-St. Charles MO-St. Louis city MO-St. Louis 
MO. 


Illinois...Winter Weather Advisory from 6 PM Saturday to noon CST Sunday 
for Randolph Illinois. 


Winter Weather Advisory from 6 PM Saturday to 6 PM CST Sunday 
for Adams Illinois-Bond Illinois-Brown Illinois-Calhoun Illinois-Clinton Illinois-Fayette 
Illinois-Greene Illinois-Jersey Illinois-Macoupin Illinois-Madison Illinois-Marion Illinois- 
Monroe Illinois-Montgomery Illinois-Pike IL-St. Clair Illinois-Washington Illinois. 


&& 


$$ 


Weather forecast office lsx 












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