Edwardsville, Illinois Weather Conditions

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National Weather Service:

Winter Storm Warning View All Alerts

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Current Conditions

  • 30°
  • Overcast
  • Wind: NW 6 mph
  • Humidity: 80%
  • Visibility: 7.0 miles
  • Dew Point: 25°
  • Pressure: 30.36 in. -
  • Heat Index: 24

Select a Section

Click a section below for more information.

Next 12 Hours

3  pm
6  pm
9  pm
12  am
3  am
Ice Pellets
Ice Pellets
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
32°
34°
27°
23°
19°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Ice Pellets
  • High: 36 °
  • Low: 18 °
  • Ice Pellets
  • Monday
  • Ice Pellets
  • High: 34 °
  • Low: 28 °
  • Ice Pellets
  • Tuesday
  • Thunderstorm
  • High: 57 °
  • Low: 18 °
  • T-Storms
  • Wednesday
  • Partly Cloudy
  • High: 25 °
  • Low: 16 °
  • Partly Cloudy
  • Thursday
  • Clear
  • High: 34 °
  • Low: 14 °
  • Clear

Forecast for Edwardsville, Illinois

Updated: 9:00 AM CST on March 01, 2015

Winter Storm Warning in effect until 6 PM CST this evening...
  • Sunday

    Overcast with ice pellets and snow, then ice pellets in the afternoon. High of 36F. Winds less than 5 mph. Chance of precipitation 80% .

  • Sunday Night

    Overcast in the evening, then partly cloudy. Low of 18F with a windchill as low as 10F. Winds from the NW at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 34F with a windchill as low as 12F. Winds from the NNE at 5 to 10 mph shifting to the East in the afternoon. Chance of rain 20%.

  • Monday Night

    Mostly cloudy with a ice pellets in the evening, then overcast with ice pellets and snow. Low of 28F with a windchill as low as 21F. Winds from the SE at 5 to 15 mph. Chance of precipitation 60% .

  • Tuesday

    Overcast with thunderstorms and rain showers. High of 57F. Winds from the South at 10 to 15 mph. Chance of rain 80% with rainfall amounts near 0.3 in. possible.

  • Tuesday Night

    Overcast with a chance of snow in the evening, then mostly cloudy. Low of 18F. Breezy. Winds from the NW at 20 to 25 mph.

  • Wednesday

    Overcast. High of 25F with a windchill as low as 3F. Breezy. Winds from the NNW at 15 to 20 mph.

  • Wednesday Night

    Overcast in the evening, then partly cloudy. Low of 16F. Winds from the NNW at 5 to 10 mph.

  • Thursday

    Clear. High of 34F. Winds from the NW at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 14F with a windchill as low as 0F. Winds from the SSE at 10 to 15 mph.

  • Friday

    Clear. High of 43F. Breezy. Winds from the South at 15 to 20 mph.

  • Friday Night

    Clear. Low of 27F. Breezy. Winds from the South at 10 to 20 mph.

  • Saturday

    Clear. High of 48F. Winds from the WSW at 10 to 15 mph shifting to the NW in the afternoon.

  • Saturday Night

    Clear. Low of 25F. Winds from the NNW at 5 to 10 mph.

  • Sunday

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

  • Sunday Night

    Clear. Fog overnight. Low of 30F. Winds from the SSW at 5 to 10 mph.

  • Monday

    Clear. High of 43F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 28F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 48F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Low of 30F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 48F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 30F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Winter Storm Warning  Statement as of 1:44 PM CST on March 1, 2015


... Winter Storm Warning remains in effect until 6 PM CST this
evening...

* timing... another quick shot of snow... sleet... or perhaps
freezing rain is possible over the next few hours... primarily
along the Interstate 70 corridor.

* Accumulations... additional snow and sleet accumulations will be
less than an inch.

* Winds... northwest 5 mph or less.

* 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 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.






 Local Storm Report 



03/01/2015 1240 PM

Granite City, Madison County.

Snow m4.5 inch, reported by trained spotter.






03/01/2015 1240 PM

Granite City, Madison County.

Snow m4.5 inch, reported by trained spotter.






03/01/2015 1240 PM

Granite City, Madison County.

Snow m4.5 inch, reported by trained spotter.






03/01/2015 1130 am

3 miles E of Highland, Madison County.

Snow m6.8 inch, reported by trained spotter.






03/01/2015 1130 am

3 miles E of Highland, Madison County.

Snow m6.8 inch, reported by trained spotter.






03/01/2015 1015 am

1 miles se of East Alton, Madison County.

Snow m6.0 inch, reported by amateur radio.






03/01/2015 1015 am

1 miles se of East Alton, Madison County.

Snow m6.0 inch, reported by amateur radio.






03/01/2015 0951 am

Edwardsville, Madison County.

Snow m5.0 inch, reported by trained spotter.






03/01/2015 0951 am

Edwardsville, Madison County.

Snow m5.0 inch, reported by trained spotter.






03/01/2015 0705 am

St. Jacob, Madison County.

Snow m6.0 inch, reported by trained spotter.






03/01/2015 0705 am

St. Jacob, Madison County.

Snow m6.0 inch, reported by trained spotter.






03/01/2015 0716 am

Godfrey, Madison County.

Snow m5.3 inch, reported by trained spotter.






03/01/2015 0716 am

Godfrey, Madison County.

Snow m5.3 inch, reported by trained spotter.






03/01/2015 0713 am

Wood River, Madison County.

Snow m6.0 inch, reported by trained spotter.






03/01/2015 0713 am

Wood River, Madison County.

Snow m6.0 inch, reported by trained spotter.






03/01/2015 0709 am

St. Jacob, Madison County.

Snow m5.0 inch, reported by trained spotter.






03/01/2015 0709 am

St. Jacob, Madison County.

Snow m5.0 inch, reported by trained spotter.






03/01/2015 0705 am

St. Jacob, Madison County.

Snow m5.5 inch, reported by trained spotter.






03/01/2015 0705 am

St. Jacob, Madison County.

Snow m5.5 inch, reported by trained spotter.






03/01/2015 1203 am

St. Jacob, Madison County.

Snow m4.8 inch, reported by trained spotter.


            Still snowing





03/01/2015 1203 am

St. Jacob, Madison County.

Snow m4.8 inch, reported by trained spotter.


            Still snowing





02/28/2015 1020 PM

St. Jacob, Madison County.

Snow m4.0 inch, reported by trained spotter.






02/28/2015 1020 PM

St. Jacob, Madison County.

Snow m4.0 inch, reported by trained spotter.






02/28/2015 0835 PM

Wood River, Madison County.

Snow e4.0 inch, reported by public.






02/28/2015 0835 PM

Wood River, Madison County.

Snow e4.0 inch, reported by public.






02/28/2015 0835 PM

Wood River, Madison County.

Snow e4.0 inch, reported by public.






02/28/2015 0605 PM

Wood River, Madison County.

Snow e2.0 inch, reported by public.






02/28/2015 0621 PM

3 miles SW of Edwardsville, Madison County.

Snow e1.5 inch, reported by trained spotter.






02/28/2015 0605 PM

Wood River, Madison County.

Snow e2.0 inch, reported by public.






02/28/2015 0621 PM

3 miles SW of Edwardsville, Madison County.

Snow e1.5 inch, reported by trained spotter.






02/28/2015 0621 PM

3 miles SW of Edwardsville, Madison County.

Snow e2.5 inch, reported by trained spotter.






02/28/2015 0507 PM

Godfrey, Madison County.

Snow m1.0 inch, reported by trained spotter.






02/28/2015 0430 PM

Granite City, Madison County.

Snow m1.0 inch, reported by trained spotter.






02/28/2015 0621 PM

3 miles SW of Edwardsville, Madison County.

Snow e1.5 inch, reported by trained spotter.






02/28/2015 0507 PM

Godfrey, Madison County.

Snow m1.0 inch, reported by trained spotter.






02/28/2015 0605 PM

Wood River, Madison County.

Snow e2.0 inch, reported by public.






02/28/2015 0605 PM

Wood River, Madison County.

Snow e2.0 inch, reported by public.






02/28/2015 0430 PM

Granite City, Madison County.

Snow m1.0 inch, reported by trained spotter.






02/28/2015 0621 PM

3 miles SW of Edwardsville, Madison County.

Snow e1.5 inch, reported by trained spotter.






02/28/2015 0621 PM

3 miles SW of Edwardsville, Madison County.

Snow e1.5 inch, reported by trained spotter.






02/28/2015 0621 PM

3 miles SW of Edwardsville, Madison County.

Snow e2.5 inch, reported by trained spotter.






02/28/2015 0621 PM

3 miles SW of Edwardsville, Madison County.

Snow e2.5 inch, reported by trained spotter.






02/28/2015 0507 PM

Godfrey, Madison County.

Snow m1.0 inch, reported by trained spotter.






02/28/2015 0507 PM

Godfrey, Madison County.

Snow m1.0 inch, reported by trained spotter.






02/28/2015 0430 PM

Granite City, Madison County.

Snow m1.0 inch, reported by trained spotter.






02/28/2015 0430 PM

Granite City, Madison County.

Snow m1.0 inch, reported by trained spotter.





Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Nickel Plate Trail, Edwardsville, IL

Updated: 2:50 PM CST

Temperature: 31.4 °F Dew Point: 26 °F Humidity: 81% Wind: North at 1.0 mph Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Grand Ave, Edwardsville, IL

Updated: 2:50 PM CST

Temperature: 33.8 °F Dew Point: 28 °F Humidity: 79% Wind: Calm Pressure: 30.45 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Dunlap Lake, Edwardsville, IL

Updated: 2:44 PM CST

Temperature: 32.0 °F Dew Point: 27 °F Humidity: 82% Wind: Calm Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Kelly Greens Weather Station, Edwardsville, IL

Updated: 2:50 PM CST

Temperature: 31.1 °F Dew Point: 26 °F Humidity: 83% Wind: Calm Pressure: 30.39 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Prairie Manor, Edwardsville, IL

Updated: 2:50 PM CST

Temperature: 29.1 °F Dew Point: 22 °F Humidity: 75% Wind: NNW at 4.2 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: Birmingham Drive, Glen Carbon, IL

Updated: 2:45 PM CST

Temperature: 32.4 °F Dew Point: 25 °F Humidity: 74% Wind: North at - Pressure: 30.39 in Hourly Precipitation: - Windchill: 32 °F Graphs

Location: Liberty Place, Troy, IL

Updated: 2:39 PM CST

Temperature: 30.3 °F Dew Point: 26 °F Humidity: 85% Wind: NW at 4.0 mph Pressure: 29.69 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Barbarotto Compound, Maryville, IL

Updated: 2:50 PM CST

Temperature: 31.3 °F Dew Point: 27 °F Humidity: 85% Wind: WNW at 2.0 mph Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Rolling Meadows Dr, Maryville, IL

Updated: 2:50 PM CST

Temperature: 33.6 °F Dew Point: 23 °F Humidity: 65% Wind: NW at 1.6 mph Pressure: 29.65 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Bethalto, IL

Updated: 2:50 PM CST

Temperature: 30.6 °F Dew Point: -19 °F Humidity: 10% Wind: WSW at 2.2 mph Pressure: - Hourly Precipitation: 0.04 in Windchill: 31 °F Graphs

Location: MesoWest GARD IL US UPR, Hamel, IL

Updated: 11:05 AM CST

Temperature: 29 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Rosewood Heights, East Alton, IL

Updated: 2:50 PM CST

Temperature: 31.3 °F Dew Point: 24 °F Humidity: 73% Wind: NW at 1.0 mph Pressure: 30.35 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: APRSWXNET East Alton IL US, Wood River, IL

Updated: 2:10 PM CST

Temperature: 32 °F Dew Point: 24 °F Humidity: 73% Wind: NNW at 1 mph Pressure: 30.32 in Hourly Precipitation: 0.01 in Windchill: 32 °F Graphs

Location: Wood River (West End), Wood River, IL

Updated: 2:42 PM CST

Temperature: 34.7 °F Dew Point: 26 °F Humidity: 69% Wind: Calm Pressure: 30.06 in Hourly Precipitation: - Windchill: 35 °F Graphs

Location: Mallard Pointe, Troy, IL

Updated: 2:50 PM CST

Temperature: 33.4 °F Dew Point: 23 °F Humidity: 65% Wind: NW at 2.2 mph Pressure: 30.33 in Hourly Precipitation: 0.06 in Windchill: 33 °F Graphs

Location: Whispering Oaks Drive, Bethalto, IL

Updated: 2:45 PM CST

Temperature: 36.5 °F Dew Point: 28 °F Humidity: 70% Wind: North at - Pressure: 30.45 in Hourly Precipitation: - Windchill: 36 °F Graphs

Location: Collinsville West, Collinsville, IL

Updated: 2:50 PM CST

Temperature: 29.3 °F Dew Point: 27 °F Humidity: 91% Wind: WNW at 4.0 mph Pressure: 30.39 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: Tim and Carolyns yard, COLLINSVILLE, IL

Updated: 2:50 PM CST

Temperature: 32.2 °F Dew Point: 27 °F Humidity: 82% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: MesoWest NAMOK2 IL US UPR, Granite City, IL

Updated: 1:30 PM CST

Temperature: 32 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Milton Area - Oscar, Alton, IL

Updated: 2:49 PM CST

Temperature: 31.6 °F Dew Point: 26 °F Humidity: 80% Wind: NW at 4.0 mph Pressure: 30.34 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: MesoWest NAMOK1 IL US UPR, Granite City, IL

Updated: 1:35 PM CST

Temperature: 36 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: St. Jacob, Il, St. Jacob, IL

Updated: 2:50 PM CST

Temperature: 31.5 °F Dew Point: 23 °F Humidity: 71% Wind: Calm Pressure: 30.44 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Alton, IL

Updated: 2:47 PM CST

Temperature: 32.7 °F Dew Point: 21 °F Humidity: 62% Wind: ESE at 3.1 mph Pressure: 30.34 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: EAST GRANITE, Granite City, IL

Updated: 2:36 PM CST

Temperature: 32.4 °F Dew Point: 27 °F Humidity: 79% Wind: Calm Pressure: 30.35 in Hourly Precipitation: - Windchill: 32 °F Graphs

Location: MesoWest ALTON IL US UPR, Alton, IL

Updated: 11:20 AM CST

Temperature: 34 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Nolan Creek Subdivision, OFallon, IL

Updated: 2:36 PM CST

Temperature: 31.4 °F Dew Point: 28 °F Humidity: 88% Wind: WSW at 4.0 mph Pressure: 30.38 in Hourly Precipitation: 0.01 in Windchill: 27 °F Graphs

Location: Fairwood Hills, OFallon, IL

Updated: 2:50 PM CST

Temperature: 32.2 °F Dew Point: 25 °F Humidity: 75% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Don's Backyard, O'Fallon, IL

Updated: 2:50 PM CST

Temperature: 32.0 °F Dew Point: 26 °F Humidity: 78% Wind: Calm Pressure: 30.61 in Hourly Precipitation: 0.02 in Windchill: 32 °F Graphs

Location: North Horner Park, Lebanon, IL

Updated: 2:50 PM CST

Temperature: 31.0 °F Dew Point: 19 °F Humidity: 61% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Alton - Beacon, Alton, IL

Updated: 2:50 PM CST

Temperature: 32.5 °F Dew Point: 28 °F Humidity: 82% Wind: Calm Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Alton - Rock Gate Estates, Alton, IL

Updated: 2:50 PM CST

Temperature: 30.5 °F Dew Point: 28 °F Humidity: 89% Wind: Calm Pressure: 30.33 in Hourly Precipitation: 0.01 in Windchill: 30 °F Graphs

Location: Alton - Christian Hill Area, Alton, IL

Updated: 2:50 PM CST

Temperature: 30.8 °F Dew Point: 25 °F Humidity: 78% Wind: WNW at 1.0 mph Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Foster Township, Alton, IL

Updated: 2:47 PM CST

Temperature: 32.0 °F Dew Point: 26 °F Humidity: 77% Wind: Calm Pressure: 30.33 in Hourly Precipitation: - Windchill: 32 °F Graphs

Location: Prairie Crossing, OFallon, IL

Updated: 2:50 PM CST

Temperature: 34.2 °F Dew Point: 29 °F Humidity: 81% Wind: Calm Pressure: 30.14 in Hourly Precipitation: - Windchill: 34 °F Graphs

Location: New Goose, Fairview Heights, IL

Updated: 2:50 PM CST

Temperature: 30.6 °F Dew Point: 28 °F Humidity: 90% Wind: NW at 2.0 mph Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: WEST ALTON, West Alton, MO

Updated: 2:50 PM CST

Temperature: 32.5 °F Dew Point: - Humidity: 86% Wind: North at - Pressure: - Hourly Precipitation: - Windchill: 32 °F Graphs

Location: Chateau Estates, Fairview Heights, IL

Updated: 2:50 PM CST

Temperature: 32.3 °F Dew Point: 28 °F Humidity: 85% Wind: NNW at 4.0 mph Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Chalet Court, Fairview Heights, IL

Updated: 2:45 PM CST

Temperature: 33.4 °F Dew Point: 30 °F Humidity: 87% Wind: North at - Pressure: 30.44 in Hourly Precipitation: - Windchill: 33 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion



AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE ST LOUIS MO
118 PM CST Sun Mar 1 2015

.UPDATE:
Issued at 115 PM CST Sun Mar 1 2015

With last gasp of precip focusing firmly on the I70 corridor will
trim more headlines...dropping advisories from Paris-Pittsfield,
and also in Crawford and Washington as it appears that the bulk
of the significant precip will remain north of this area.

Truett

&&

.SHORT TERM: (Through Tuesday Night) 
Issued at 400 AM CST Sun Mar 1 2015

The busy stretch of wx thru mid-week continues.  This major winter 
storm is winding down slowly across our region with another spat or 
two of winter wx set for Monday night and again on Tuesday night and 
perhaps into Wednesday. 

Precipitation across our area early this morning can be divided into 
two main regions by primary mode of forcing.  A band of snow 
stretching across much of northern MO is being driven by 
frontogenesis with enough moisture thru the column.  The swath of 
pcpn mainly to the S and E of STL Metro is being driven by WAA and 
ranges from snow around I-70 and I-64 in IL to sleet and freezing 
rain for areas mainly south of Farmington, MO. 

Moisture thru the column will hold steady thru much of the morning 
before drier air begins to filter in from the north.  
Frontogenetical forcing across the north will weaken and exit by 
mid-morning but a new area of frontogenesis is anticipated to move 
in along the I-70 corridor this afternoon from west to east.  But by 
this time, moisture thru the column will be in decline and so the 
band of pcpn that will likely result will be something that is 
weaker than what we see across northern MO now.  If the model 
estimates of moisture are wrong and/or the narrow nature of the 
frontogenesis is stronger, we may end up getting a narrow band of 
snow that adds 1-2" more than what we have forecast.  Probably a 
feature that will need to be nowcast more aggressively once it 
finally appears late this morning-midday. 

The WAA-generated pcpn is expected to weaken and/or exit our CWA by 
late morning.

Add to all of this some dry-slotting near and just south of I-70 
this morning with weak lo-level convergence resulting in patchy 
freezing drizzle. 

Pcpn-types should remain all snow for areas north of I-70 for the 
duration of this event today.  Sleet is anticipated to mix in with 
the pcpn that falls as far north as the I-70 corridor during the day 
today, while freezing rain should be confined to areas along and 
south of a Crawford County MO to Washington County IL line, but even 
then freezing rain should be done by midday as temps rise just above 
freezing. 

Putting it all together, additional snow accums of 1-2" appear 
likely thru late this afternoon for areas near and north of I-70 in 
MO and near and north of I-64 in IL.  Additional snow and sleet 
accums of less than an inch for elsewhere.  Light glazing of ice is 
likely for much of southeast MO and southern IL for this morning.  
Plan on keeping headlines the same for the vast majority of the 
counties, but will tack on Marion IL and Washington IL to the 
warning with what has already fallen and over an inch of new snow 
still expected. 

After a break in the action Sunday night and Monday, strong WAA will 
generate a new round of pcpn Monday night as a surface warm front 
passes thru and resulting in rising overnight temps.  The pcpn-types 
should overwhelmingly be liquid, with some sleet possible in far 
northern MO and central IL.  Unfortunately, it looks like there will 
remain enough cold air in place at the surface early in the event 
before the surface temps have had a chance to rise too much to 
result in some light freezing rain for much of the area.  It should 
be short-lived, with temps by 12z/Tue expected to be above freezing 
for all locations.

Rounds of showers with some thunderstorms are still on tap for 
Tuesday with an 18-hour period or so of mild temps, as they rise 
well thru the 40s and into the 50s for some areas.  A strong cold 
front will move thru late Tuesday afternoon and evening and drop 
temps rapidly back below freezing.  But much of the pcpn will be 
done by then with minimal impact from snow expected. 

Large model discrepancies are in place for Wednesday but the 
consensus now is to suppress pcpn to our south.  The NAM is a big 
outlier here, forecasting another round of heavy snow.  Given its 
track record on Day 3, will forego using this for the forecast with 
this package, but it is in the realm of possibilities with all 
models showing varying degrees of a northern surge of pcpn on Wed.  
Something to keep an eye on.

TES

.LONG TERM: (Wednesday through Saturday) 
Issued at 400 AM CST Sun Mar 1 2015

Colder conditions are expected for Wednesday as a strong surface 
ridge builds southeastward into MO from the northern Plains.  Will 
keep a chance of precipitation across southeast MO and southwest IL 
on Wednesday as a positively tilted upper level trough with embedded 
shortwaves remains west of the forecast area.  The GFS model shifts 
the precipitation southeast of our forecast area by Wednesday, while 
the ECMWF still has light qpf across southern portions of MO and IL, 
south of STL.  Precipitation type should be all snow with 850 mb 
temperatures falling well below zero degrees C across the southern 
portion of the forecast area on Wednesday.  Little diurnal rise in 
temperatures is expected on Wednesday due to low level cold air 
advection.  Low temperatures Wednesday night will be unseasonably 
cold with the surface high dropping into our forecast area, and
850 mb temperatures of only -13 to -18 degrees C across the forecast 
area.  Warmer temperatures can be expected for Thursday night and 
Friday as the surface ridge moves east of our area and the surface 
wind becomes southerly.  A cold front will move southeastward 
through our area late Friday night and Saturday.  Precipitation is 
not expected with this front due to very limited moisture and only 
weak upper level forcing.  Only slightly cooler air will filter into 
the region behind the front Saturday and Saturday night.

GKS

&&

.AVIATION:  (For the 12z TAFs through 12z Monday Morning)
Issued at 417 AM CST Sun Mar 1 2015

Light snow will continue this morning with brief periods of
heavier snow possible. It appears that the snow will end in UIN
and COU by 18Z Sunday, but may continue until late afternoon in
the St Louis metro area. The visibilities will improve later this
morning as the snow tapers off. Could not rule out a brief period
of light freezing drizzle this morning along with the snow.
The low level cloud cigs should scatter out this evening as drier
air filters southeastward into the region. Light surface winds
will become nwly this afternoon as a surface ridge builds
southeastward into our area.

Specifics for KSTL: Light snow will continue this morning into the
early afternoon. The snow should end by late afternoon. The low
level cloud ceiling should scatter out this evening. The light
surface wind will become nwly this afternoon.

GKS

&&

.LSX WATCHES/WARNINGS/ADVISORIES:
MO...WINTER STORM WARNING until 6 PM CST this evening FOR Franklin MO-
     Gasconade MO-Jefferson MO-Lincoln MO-Osage MO-St. Charles 
     MO-St. Louis City MO-St. Louis MO-Warren MO.

     WINTER WEATHER ADVISORY until 6 PM CST this evening FOR Audrain 
     MO-Boone MO-Callaway MO-Cole MO-Moniteau MO-Montgomery MO-
     Pike MO.

IL...WINTER STORM WARNING until 6 PM CST this evening FOR Bond IL-
     Calhoun IL-Clinton IL-Fayette IL-Greene IL-Jersey IL-
     Macoupin IL-Madison IL-Marion IL-Monroe IL-Montgomery IL-
     St. Clair IL-Washington IL.

&&

$$

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