Saint Louis, MO (63139)

10:45 PM CDT on July 22, 2017 (GMT -0500)
Tower Grove Southwest | | Change Station

Elev 502 ft 38.59 °N, 90.27 °W | Updated 23 seconds ago

Thunderstorm
Thunderstorm
77.0 °F
Feels Like 79 °F
N
8.3
Wind Variable Wind from WSW
Gusts 28.9 mph

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 29.79 in
Visibility 10.0 miles
Clouds Mostly Cloudy 8000 ft
Heat Index 79 °F
Dew Point 69 °F
Humidity 77%
Rainfall 0.74 in
Snow Depth Not available.
5:54 AM 8:20 PM
Waning Crescent, 0% visible
SPECI KCPS 230315Z AUTO 28004KT 10SM TS BKN080 32/22 A2979 RMK AO2 LTG DSNT W-NE TSB09 T03220222
Pressure 29.79 in
Visibility 10.0 miles
Clouds Mostly Cloudy 8000 ft
Heat Index 79 °F
Dew Point 69 °F
Humidity 77%
Rainfall 0.74 in
Snow Depth Not available.
5:54 AM 8:20 PM
Waning Crescent, 0% visible
SPECI KCPS 230315Z AUTO 28004KT 10SM TS BKN080 32/22 A2979 RMK AO2 LTG DSNT W-NE TSB09 T03220222

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10-Day Weather Forecast

Almanac

Astronomy

Jul. 22, 2017 Rise Set
Actual Time
Civil Twilight
Nautical Twilight
Astronomical Twilight
Moon
Length of Visible Light
Length of Day
Tomorrow will be .
, % of the Moon is Illuminated

Today's Extremes

State Highs State Lows

Community

WunderPhotos

Category 6

Welcome to Category 6. This is the collective home for Weather Underground's featured writeups by Dr. Jeff Masters (right), Bob Henson (left), Chris Burt, and other regular contributors.

Nearby

Air Quality

  Air Quality AQ Index Pollutant
Not available.

Snow Depth

Station Depth Elevation

Earthquake Activity

City Distance Mag. Time & Date
Minimum magnitude displayed is 2.5.

Coastal Water Temperatures

Place Temperature

Stations

Nearby Weather Stations

Station Location Temp. Windchill Dew Point Humidity Wind Precip. Elev Updated Type
                   

Watches & Warnings

Excessive Heat Warning
Issued: 3:41 PM CDT Jul. 22, 2017 – National Weather Service

... Excessive heat warning remains in effect until 8 PM CDT
Sunday...

* timing... through Sunday evening.

* Heat index values... up to 115 due to temperatures in the lower
100s, and dewpoints in the lower 70s.

* Impacts... the combination of hot temperatures and high
humidity will lead to an increased risk of heat-related stress
and illness. The very Young, the elderly, those without air
conditioning, and those participating in strenuous outdoor
activities will be the most susceptible. Also, car interiors
can reach lethal temperatures in a matter of minutes.

Precautionary/preparedness actions...

An excessive heat warning means that a prolonged period of
dangerously hot temperatures and high humidity will occur. In
addition, nighttime conditions will remain warm and muggy
providing little chance for relief. This combination will create
a dangerous situation in which heat-related illnesses are likely,
especially for those living in un-air conditioned homes or
apartments. People in the warning area are advised to avoid
poorly ventilated areas and prolonged work in the sun. Use air
conditioning in your house or apartment if it is working
correctly. If you do not have air conditioning, keep your house
or apartment well ventilated with fans, and try to spend some
time in an air conditioned environment to give your body a break
from the heat.

To reduce risk during outdoor work, the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency, call 9-1-1 immediately.

Where's baby? Look before you lock! Young children and pets
should never be left unattended in vehicles under any
circumstances. This is especially true during warm or hot weather
when car interiors can reach lethal temperatures in a matter of
minutes.

People in the Saint Louis metropolitan area can get information
about cooling centers or energy assistance related to the
excessive heat by calling the United way of greater Saint Louis
at 800-427-4626, or if calling from a land line phone dial 2-1-1.
You can also call cool down Saint Louis at 314-241-7668.





Special Statement
Issued: 10:33 PM CDT Jul. 22, 2017 – National Weather Service

... Significant weather advisory for north central Monroe...
northwestern St. Clair and south central St. Louis counties and St.
Louis city until 1115 PM CDT...

At 1032 PM CDT, Doppler radar was tracking a strong thunderstorm over
Bella Villa, moving east at 20 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
St. Louis, Belleville, University City, O'Fallon, east St. Louis,
Webster Groves, Fairview Heights, Clayton, Cahokia, Swansea, Shiloh,
Columbia, Richmond Heights, Maplewood, Shrewsbury, Centreville,
Freeburg, Caseyville, Washington Park and Dupo.

This includes Interstate 64 in Illinois between exits 9 and 19.

This also includes Scott Joplin historic site.

Precautionary/preparedness actions...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.


Lat... Lon 3849 9037 3867 9031 3861 8983 3835 8992
time... Mot... loc 0332z 284deg 17kt 3857 9026


Carney


1033 PM CDT Sat Jul 22 2017

... Significant weather advisory for north central Monroe...
northwestern St. Clair and south central St. Louis counties and St.
Louis city until 1115 PM CDT...

At 1032 PM CDT, Doppler radar was tracking a strong thunderstorm over
Bella Villa, moving east at 20 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
St. Louis, Belleville, University City, O'Fallon, east St. Louis,
Webster Groves, Fairview Heights, Clayton, Cahokia, Swansea, Shiloh,
Columbia, Richmond Heights, Maplewood, Shrewsbury, Centreville,
Freeburg, Caseyville, Washington Park and Dupo.

This includes Interstate 64 in Illinois between exits 9 and 19.

This also includes Scott Joplin historic site.

Precautionary/preparedness actions...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.


Lat... Lon 3849 9037 3867 9031 3861 8983 3835 8992
time... Mot... loc 0332z 284deg 17kt 3857 9026


Carney