Saint Peters, Missouri Weather Conditions

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Current Conditions

  • 18°
  • Clear
  • Wind: Calm
  • Humidity: 84%
  • Visibility: 4.0 miles
  • Dew Point: 14°
  • Pressure: 30.53 in. +

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Next 12 Hours

12  am
3  am
6  am
9  am
12  pm
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Overcast
Overcast
25°
25°
23°
25°
32°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Ice Pellets
  • High: 32 °
  • Low: 30 °
  • Ice Pellets
  • Tuesday
  • Thunderstorm
  • High: 50 °
  • Low: 19 °
  • T-Storms
  • Wednesday
  • Chance of Snow
  • High: 25 °
  • Low: 10 °
  • Chance of Snow
  • Thursday
  • Clear
  • High: 30 °
  • Low: 18 °
  • Clear
  • Friday
  • Clear
  • High: 45 °
  • Low: 30 °
  • Clear

Forecast for Saint Peters, Missouri

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

  • Sunday

    Overcast with ice pellets and snow, then ice pellets in the afternoon. High of 36F. Winds less than 5 mph. Chance of precipitation 70% .

  • Sunday Night

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

  • Monday

    Partly cloudy in the morning, then overcast. High of 32F. 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 30F with a windchill as low as 21F. Winds from the ESE at 5 to 10 mph. Chance of precipitation 60% .

  • Tuesday

    Overcast with thunderstorms and rain showers. High of 50F. Winds from the South at 10 to 15 mph. Chance of rain 80%.

  • Tuesday Night

    Overcast with a chance of snow in the evening, then mostly cloudy with a chance of snow. Low of 19F. Breezy. Winds from the WNW at 10 to 20 mph. Chance of snow 30%.

  • Wednesday

    Partly cloudy with a chance of snow. High of 25F with a windchill as low as 7F. Winds from the NNW at 10 to 15 mph. Chance of snow 20%.

  • Wednesday Night

    Partly cloudy. Low of 10F. Winds from the North at 10 to 15 mph.

  • Thursday

    Clear in the morning, then partly cloudy. High of 30F with a windchill as low as 10F. Winds from the NNW at 10 to 15 mph.

  • Thursday Night

    Clear. Low of 18F with a windchill as low as 7F. Winds from the East at 5 to 15 mph shifting to the SSE after midnight.

  • Friday

    Clear. High of 45F. Breezy. Winds from the SSW at 15 to 20 mph.

  • Friday Night

    Partly cloudy. Low of 30F. Winds from the SW at 10 to 15 mph.

  • Saturday

    Clear. High of 48F. Winds from the WSW at 5 to 15 mph.

  • Saturday Night

    Partly cloudy. Low of 23F. Winds less than 5 mph.

  • Sunday

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

  • Sunday Night

    Clear. Low of 32F. Winds from the SSW at 5 to 15 mph.

  • Monday

    Clear. High of 48F. Winds from the WSW at 5 to 15 mph.

  • Monday Night

    Clear. Low of 30F. 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 32F. Winds from the SE at 5 to 10 mph.

  • Thursday

    Clear. High of 50F. Winds from the SSE at 5 to 10 mph.

  • Thursday Night

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

Severe Weather Alert Descriptions

 Local Storm Report 



03/01/2015 0900 am

2 miles S of lake St. Louis, St Charles County.

Snow m4.0 inch, reported by trained spotter.





03/01/2015 1015 am

1 miles WNW of St. Peters, St Charles County.

Snow m4.0 inch, reported by NWS employee.


            Cottleville area.




03/01/2015 1019 am

St. Peters, St Charles County.

Snow e4.5 inch, reported by trained spotter.





03/01/2015 1030 am

4 miles ESE of New Melle, St Charles County.

Snow m4.0 inch, reported by trained spotter.





03/01/2015 0930 am

1 miles WNW of St. Peters, St Charles County.

Snow m3.8 inch, reported by trained spotter.





03/01/2015 0900 am

2 miles S of lake St. Louis, St Charles County.

Snow m4.0 inch, reported by trained spotter.





03/01/2015 1015 am

1 miles WNW of St. Peters, St Charles County.

Snow m4.0 inch, reported by NWS employee.


            Cottleville area.




03/01/2015 1019 am

St. Peters, St Charles County.

Snow e4.5 inch, reported by trained spotter.





03/01/2015 1030 am

4 miles ESE of New Melle, St Charles County.

Snow m4.0 inch, reported by trained spotter.





03/01/2015 0930 am

1 miles WNW of St. Peters, St Charles County.

Snow m3.8 inch, reported by trained spotter.





03/01/2015 0900 am

2 miles S of lake St. Louis, St Charles County.

Snow m4.0 inch, reported by trained spotter.





03/01/2015 1015 am

1 miles WNW of St. Peters, St Charles County.

Snow m4.0 inch, reported by NWS employee.


            Cottleville area.




03/01/2015 1019 am

St. Peters, St Charles County.

Snow e4.5 inch, reported by trained spotter.





03/01/2015 1030 am

4 miles ESE of New Melle, St Charles County.

Snow m4.0 inch, reported by trained spotter.





03/01/2015 0930 am

1 miles WNW of St. Peters, St Charles County.

Snow m3.8 inch, reported by trained spotter.





03/01/2015 1030 am

4 miles ESE of New Melle, St Charles County.

Snow m4.0 inch, reported by trained spotter.






03/01/2015 1030 AM

4 miles ESE of NEW MELLE, St Charles County.

SNOW M4.0 INCH, reported by TRAINED SPOTTER.





03/01/2015 1030 am

4 miles ESE of New Melle, St Charles County.

Snow m4.0 inch, reported by trained spotter.






03/01/2015 1015 am

1 miles WNW of St. Peters, St Charles County.

Snow m4.0 inch, reported by NWS employee.


            Cottleville area.





03/01/2015 1015 am

1 miles WNW of St. Peters, St Charles County.

Snow m4.0 inch, reported by NWS employee.


            Cottleville area.





03/01/2015 1019 am

St. Peters, St Charles County.

Snow e4.5 inch, reported by trained spotter.






03/01/2015 1019 am

St. Peters, St Charles County.

Snow e4.5 inch, reported by trained spotter.






03/01/2015 0930 am

1 miles WNW of St. Peters, St Charles County.

Snow m3.8 inch, reported by trained spotter.






03/01/2015 0930 am

1 miles WNW of St. Peters, St Charles County.

Snow m3.8 inch, reported by trained spotter.






03/01/2015 0845 am

6 miles ENE of Marthasville, St Charles County.

Snow m4.0 inch, reported by trained spotter.






03/01/2015 0845 am

6 miles ENE of Marthasville, St Charles County.

Snow m4.0 inch, reported by trained spotter.






03/01/2015 0900 am

2 miles S of lake St. Louis, St Charles County.

Snow m4.0 inch, reported by trained spotter.






03/01/2015 0900 am

2 miles S of lake St. Louis, St Charles County.

Snow m4.0 inch, reported by trained spotter.






03/01/2015 0834 am

St. Peters, St Charles County.

Snow m3.5 inch, reported by trained spotter.


            Intersection of I-364 and jungs station Rd.





03/01/2015 0834 am

St. Peters, St Charles County.

Snow m3.5 inch, reported by trained spotter.


            Intersection of I-364 and jungs station Rd.





03/01/2015 0653 am

Wentzville, St Charles County.

Snow m3.8 inch, reported by trained spotter.






03/01/2015 0653 am

Wentzville, St Charles County.

Snow m3.8 inch, reported by trained spotter.






03/01/2015 0639 am

St. Paul, St Charles County.

Snow e5.0 inch, reported by trained spotter.






03/01/2015 0639 am

St. Paul, St Charles County.

Snow e5.0 inch, reported by trained spotter.






03/01/2015 0639 am

St. Paul, St Charles County.

Snow e5.0 inch, reported by trained spotter.






03/01/2015 0222 am

Weldon Spring, St Charles County.

Snow m4.0 inch, reported by NWS employee.


            4.0 inches measured at the NWS office in Weldon Spring.
            Still snowing lightly.





03/01/2015 0222 am

Weldon Spring, St Charles County.

Snow m4.0 inch, reported by NWS employee.


            4.0 inches measured at the NWS office in Weldon Spring.
            Still snowing lightly.





02/28/2015 1140 PM

Weldon Spring, St Charles County.

Snow m4.0 inch, reported by official NWS obs.


            WFO lsx





02/28/2015 1140 PM

Weldon Spring, St Charles County.

Snow m4.0 inch, reported by official NWS obs.


            WFO lsx





02/28/2015 1005 PM

Weldon Spring, St Charles County.

Snow m3.4 inch, reported by official NWS obs.






02/28/2015 1005 PM

Weldon Spring, St Charles County.

Snow m3.4 inch, reported by official NWS obs.






02/28/2015 0933 PM

Cottleville, St Charles County.

Snow m2.8 inch, reported by NWS employee.


            Second Cottleville observing site.





02/28/2015 0933 PM

Cottleville, St Charles County.

Snow m2.8 inch, reported by NWS employee.


            Second Cottleville observing site.





02/28/2015 0906 PM

O'Fallon, St Charles County.

Snow m3.0 inch, reported by Fire Dept/Rescue.


            Near Bryan Road and I-70.





02/28/2015 0911 PM

O'Fallon, St Charles County.

Snow m3.0 inch, reported by trained spotter.


            Near the intersection of Highway 40 and N.





02/28/2015 0911 PM

O'Fallon, St Charles County.

Snow m3.0 inch, reported by trained spotter.


            Near the intersection of Highway 40 and N.





02/28/2015 0900 PM

Cottleville, St Charles County.

Snow m3.0 inch, reported by NWS employee.






02/28/2015 0900 PM

Cottleville, St Charles County.

Snow m3.0 inch, reported by NWS employee.






02/28/2015 0906 PM

O'Fallon, St Charles County.

Snow m3.0 inch, reported by Fire Dept/Rescue.


            Near Bryan Road and I-70.





02/28/2015 0906 PM

O'Fallon, St Charles County.

Snow m3.0 inch, reported by Fire Dept/Rescue.


            Near Bryan Road and I-70.





02/28/2015 0829 PM

Wentzville, St Charles County.

Snow m3.0 inch, reported by public.






02/28/2015 0829 PM

Wentzville, St Charles County.

Snow m3.0 inch, reported by public.






02/28/2015 0629 PM

St. Peters, St Charles County.

Snow m1.5 inch, reported by trained spotter.






02/28/2015 0629 PM

St. Peters, St Charles County.

Snow m1.5 inch, reported by trained spotter.






02/28/2015 0629 PM

St. Peters, St Charles County.

Snow m1.5 inch, reported by trained spotter.






02/28/2015 0532 PM

St. Charles, St Charles County.

Snow m1.2 inch, reported by trained spotter.






02/28/2015 0532 PM

St. Charles, St Charles County.

Snow m1.2 inch, reported by trained spotter.






02/28/2015 0420 PM

O'Fallon, St Charles County.

Snow m1.1 inch, reported by trained spotter.






02/28/2015 0420 PM

O'Fallon, St Charles County.

Snow m1.1 inch, reported by trained spotter.






02/28/2015 0420 PM

O'Fallon, St Charles County.

Snow m1.1 inch, reported by trained spotter.






02/28/2015 0406 PM

Weldon Spring, St Charles County.

Snow m1.0 inch, reported by NWS employee.


            NWS lsx





02/28/2015 0406 PM

Weldon Spring, St Charles County.

Snow m1.0 inch, reported by NWS employee.


            NWS lsx





02/28/2015 0322 PM

Weldon Spring, St Charles County.

Snow m0.7 inch, reported by NWS employee.


            NWS lsx





02/28/2015 0322 PM

Weldon Spring, St Charles County.

Snow m0.7 inch, reported by NWS employee.


            NWS lsx





02/28/2015 0322 PM

Weldon Spring, St Charles County.

Snow m0.7 inch, reported by NWS employee.


            NWS lsx




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Wilshire Valley, St. Charles, MO

Updated: 10:46 PM CST

Temperature: 25.5 °F Dew Point: 10 °F Humidity: 52% Wind: Calm Pressure: 30.55 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Windwood,Nic S., St. Peters, MO

Updated: 10:45 PM CST

Temperature: 23.5 °F Dew Point: 21 °F Humidity: 90% Wind: Calm Pressure: 30.22 in Hourly Precipitation: - Windchill: 24 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 10:59 PM CST

Temperature: 22.8 °F Dew Point: 20 °F Humidity: 89% Wind: Calm Pressure: 30.43 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 10:50 PM CST

Temperature: 21.5 °F Dew Point: 19 °F Humidity: 89% Wind: Calm Pressure: 30.52 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 10:59 PM CST

Temperature: 20.5 °F Dew Point: 18 °F Humidity: 86% Wind: Calm Pressure: 30.56 in Hourly Precipitation: 0.00 in Windchill: 20 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 10:55 PM CST

Temperature: 16.8 °F Dew Point: 13 °F Humidity: 85% Wind: Calm Pressure: 30.52 in Hourly Precipitation: 0.00 in Windchill: 17 °F Graphs

Location: C. Verripslaantje, Saint Charles, MO

Updated: 10:56 PM CST

Temperature: 24.6 °F Dew Point: 21 °F Humidity: 87% Wind: North at - Pressure: 30.39 in Hourly Precipitation: - Windchill: 25 °F Graphs

Location: manors of orchard glen, St. Peters, MO

Updated: 10:59 PM CST

Temperature: 23.5 °F Dew Point: 18 °F Humidity: 78% Wind: Calm Pressure: 30.50 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 10:59 PM CST

Temperature: 21.1 °F Dew Point: 18 °F Humidity: 88% Wind: Calm Pressure: 30.51 in Hourly Precipitation: 0.00 in Windchill: 21 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 10:59 PM CST

Temperature: 23.1 °F Dew Point: 16 °F Humidity: 74% Wind: Calm Pressure: 30.51 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

Location: Huntington Downs, Saint Charles, MO

Updated: 10:56 PM CST

Temperature: 26.8 °F Dew Point: 19 °F Humidity: 72% Wind: North at - Pressure: 30.50 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: McClay Trails, Saint Charles, MO

Updated: 10:56 PM CST

Temperature: 18.5 °F Dew Point: 18 °F Humidity: 97% Wind: Calm Pressure: 30.25 in Hourly Precipitation: - Windchill: 18 °F Graphs

Location: Foxborough Estates, St. Charles, MO

Updated: 10:59 PM CST

Temperature: 25.8 °F Dew Point: 22 °F Humidity: 84% Wind: West at 1.0 mph Pressure: 30.53 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: CommuniTree Gardens Nursery, St. Louis, MO

Updated: 10:52 PM CST

Temperature: 17.1 °F Dew Point: 15 °F Humidity: 91% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: 17 °F Graphs

Location: Hunters Valley, Saint Peters, MO

Updated: 10:52 PM CST

Temperature: 17.6 °F Dew Point: 16 °F Humidity: 94% Wind: Calm Pressure: 30.47 in Hourly Precipitation: - Windchill: 18 °F Graphs

Location: Park Charles South, Saint Peters, MO

Updated: 10:45 PM CST

Temperature: 25.7 °F Dew Point: 18 °F Humidity: 79% Wind: North at - Pressure: 30.55 in Hourly Precipitation: - Windchill: 26 °F Graphs

Location: Saint Peters Hills, Saint Peters, MO

Updated: 10:59 PM CST

Temperature: 20.8 °F Dew Point: 16 °F Humidity: 81% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 21 °F Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 10:59 PM CST

Temperature: 24.3 °F Dew Point: 19 °F Humidity: 79% Wind: Calm Pressure: 30.42 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: St. Peters, St. Peters, MO

Updated: 10:59 PM CST

Temperature: 25.5 °F Dew Point: 20 °F Humidity: 79% Wind: Calm Pressure: 30.51 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 10:57 PM CST

Temperature: 22.4 °F Dew Point: 19 °F Humidity: 86% Wind: Calm Pressure: 30.47 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: Fox Hill, Saint Charles, MO

Updated: 10:50 PM CST

Temperature: 24.8 °F Dew Point: 20 °F Humidity: 83% Wind: Calm Pressure: 31.40 in Hourly Precipitation: - Windchill: 25 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 10:59 PM CST

Temperature: 19.8 °F Dew Point: 19 °F Humidity: 96% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Windchill: 20 °F Graphs

Location: Austin Ridge, Saint Charles, MO

Updated: 10:51 PM CST

Temperature: 25.4 °F Dew Point: 22 °F Humidity: 85% Wind: West at 2.0 mph Pressure: 30.50 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 10:46 PM CST

Temperature: 20.7 °F Dew Point: 19 °F Humidity: 92% Wind: Calm Pressure: 30.39 in Hourly Precipitation: - Windchill: 21 °F Graphs

Location: Honeygrove Court, Saint Louis, MO

Updated: 10:56 PM CST

Temperature: 25.9 °F Dew Point: 19 °F Humidity: 74% Wind: North at - Pressure: 30.50 in Hourly Precipitation: - Windchill: 26 °F Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 10:59 PM CST

Temperature: 22.3 °F Dew Point: 19 °F Humidity: 88% Wind: Calm Pressure: 30.53 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 10:59 PM CST

Temperature: 21.6 °F Dew Point: 16 °F Humidity: 80% Wind: Calm Pressure: 30.48 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: Country Crossing - Birdie Hills and Treeshadow, St. Peters, MO

Updated: 10:50 PM CST

Temperature: 20.8 °F Dew Point: 20 °F Humidity: 97% Wind: Calm Pressure: 30.36 in Hourly Precipitation: - Windchill: 21 °F Graphs

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

Updated: 10:33 PM CST

Temperature: 19 °F Dew Point: 14 °F Humidity: 82% Wind: Calm Pressure: 30.51 in Hourly Precipitation: 0.00 in Windchill: 19 °F Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 10:59 PM CST

Temperature: 19.7 °F Dew Point: 18 °F Humidity: 91% Wind: Calm Pressure: 30.56 in Hourly Precipitation: 0.00 in Windchill: 20 °F Graphs

Location: Maryland Heights, St Louis, MO

Updated: 10:55 PM CST

Temperature: 20.6 °F Dew Point: 17 °F Humidity: 86% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Windchill: 21 °F Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 10:59 PM CST

Temperature: 25.2 °F Dew Point: 19 °F Humidity: 76% Wind: Calm Pressure: 30.49 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: Creve Coeur, Saint Louis, MO

Updated: 10:59 PM CST

Temperature: 21.9 °F Dew Point: 17 °F Humidity: 80% Wind: Calm Pressure: 30.47 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 10:59 PM CST

Temperature: 22.0 °F Dew Point: 15 °F Humidity: 75% Wind: Calm Pressure: 30.45 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: O'fallon / St. Peters, St. Peters, MO

Updated: 10:59 PM CST

Temperature: 21.6 °F Dew Point: 16 °F Humidity: 79% Wind: Calm Pressure: 30.48 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 10:55 PM CST

Temperature: 17.0 °F Dew Point: 12 °F Humidity: 81% Wind: Calm Pressure: 30.43 in Hourly Precipitation: 0.00 in Windchill: 17 °F Graphs

Location: Public Works Department Building, OFallon, MO

Updated: 10:55 PM CST

Temperature: 22.6 °F Dew Point: 19 °F Humidity: 86% Wind: Calm Pressure: 30.52 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

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

Updated: 10:59 PM CST

Temperature: 18.3 °F Dew Point: 17 °F Humidity: 95% Wind: Calm Pressure: 30.41 in Hourly Precipitation: - Windchill: 18 °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 
1000 PM CST sun Mar 1 2015 


Update: 
issued at 929 PM CST sun Mar 1 2015 


Have updated sky cover trends through late this evening as low 
stratus has advected into the far southern County Warning Area. Mid to high-level 
cloudiness remain anchored for the moment across the far north. In 
between...skies have become clear or mostly clear. 
Consequently...temperatures are beginning to plummet with 
light/variable winds. Have taken a Stab at minimums tonight and 
lowered them a couple of degrees where skies are expected to 
remain clear the longest. Still expect an increase in mid/high 
level clouds everywhere late tonight as quasi-zonal flow aloft advects 
in clouds currently over KS/OK. Still probably am not cool enough 
in some areas...and will watch trends through the remainder of the evening. 


Gosselin 


&& 


Short term: (through late tonight) 
issued at 405 PM CST sun Mar 1 2015 


West-east oriented band of precip continues to weaken along the i70 
corridor, and dont expect much of this to linger past 00z. 


Otherwise, it should be a dry night across the area. Clouds should 
thin with time as mid level trof swings into the area and slowly 
drags somewhat colder and drier air southward. Did not go too 
cold at this point as it appears that some mid or high level 
cloudiness will be streaming into the area after the lower clouds 
clear, especially over the southern/southwest half of the County Warning Area. 
Based on this cloud trend have have gone with lows from the teens 
north to the lower 20s south, but if clearing is more pronouced 
these will likely be too warm. 


Truett 


Long term: (monday through next sunday) 
issued at 405 PM CST sun Mar 1 2015 


(monday-wednesday) 


Southward push of colder air overnight will reintensify surface 
ridge, with the surface high then pushing through the mid-Mississippi 
Valley during the day on Monday. This should mean a chilly but 
tranquil day, with highs in the lower to middle 30s. 


Active weather rapidly returns to the region Monday night as 
return flow intensifies on the back side of the retreating surface 
high. 12z models are in good agreement with earlier solutions 
that intensifying isentropic ascent/warm air advection will cause another round 
of wintry weather to develop. Although there could be a very brief 
period of snow, primary ptype will be a mix of sleet and 
rain/freezing rain. There could certainly be some sleet and minor 
ice accumulations depending on how long surface temps remain below 
freezing, but any ice should quickly melt early Tuesday as 
surface temperatures rapidly warm through the 30s. 


We should quickly...but briefly...have a taste of more Spring-like 
weather during the day on Tuesday, as warm air surges into the 
region ahead of surface low that tracks from mid-Missouri Valley 
into lower Michigan. As we get into the warm sector sensible 
weather trends should be a bit more Spring-like with showers 
overspreading much of the area. Have continued a mention of 
thunderstorms as well, but at this point instability looks fairly 
meager. 


We rapidly swing back to cold season Mode Tuesday night and 
Wednesday, as yet another surge of cold air works its way into the 
Mississippi Valley. Ptypes will transition back from rain to snow 
overnight Tuesday night as colder air undercuts the moisture, but 
really not expecting much in the way of accumulation as precip 
should end as freezing levels drop enough to support snow. 


However, the pattern that is expected to develop by midweek is 
certainly a bit more worrisome from a winter weather Point of 
View, as deeping trof from the western lakes into the Southern 
Plains will allow pockets of energy and moisture to work east into 
the cold air that is building into the region. All of the 12z 
solutions suggest a band of precip developing from Arkansas into the 
lower Ohio Valley during the day on Wednesday, but there is 
considerable disagreement in where this axis...and especially 
where the north edge of this precip...will set up. 12z NAM was 
very far north with its quantitative precipitation forecast placement and it was such an outlier 
I have disregarded its solution for now, and have used a consensus 
of GFS and European model (ecmwf) for pops at this time. Another round of 
accumulating snow will certainly not be out of the question for 
our area depending of course on where the aforementioned band of 
precip develops. 


(Wednesday night through sunday) 


Midweek system should be exiting the area Wednesday night with 
just some lingering light snow over southeast Missouri and 
southern Illinois. As strong surface ridge builds in, colder air 
to slide south into region with lows in the single digits to mid 
teens. 


Sunny conditions return to the region on Thursday, but a lot of cold 
air in place. Will only see highs in the upper teens to low 30s. 


Surface ridge to move off to the southeast Thursday night allowing 
southerly winds to return. Temperatures to begin moderating with 
highs in the 40s for the rest of the extended. 


Truett/Byrd 


&& 


Aviation: (for the 06z tafs through 06z Monday night) 
issued at 941 PM CST sun Mar 1 2015 


VFR thru the taf period. Cigs will lower gradually on Mon. Winds 
will remain light thru the period and veer thru the period to 
eventually become sely by Mon eve. 


Tilly 


&& 


Lsx watches/warnings/advisories: 
MO...none. 
Illinois...none. 
&& 


$$ 


Weather forecast office lsx 



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