Heat Advisory 3, NWS St. Louis, MO

673 
WWUS73 KLSX 231615
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
1115 AM CDT THU JUN 23 2016

ILZ100>102-MOZ061-063>065-232100-
/O.EXB.KLSX.HT.Y.0003.160623T1700Z-160623T2100Z/
JEFFERSON MO-MADISON IL-MONROE IL-SAINT CHARLES MO-SAINT CLAIR IL-
SAINT LOUIS CITY MO-SAINT LOUIS MO-
INCLUDING THE CITIES OF...ALTON...BELLEVILLE...CAHOKIA...
EDWARDSVILLE...SAINT CHARLES...SAINT LOUIS
1115 AM CDT THU JUN 23 2016

...HEAT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON.

* TIMING...TEMPERATURES WILL RISE INTO THE MID 90S EARLY THIS
  AFTERNOON WITH DANGEROUS LEVELS OF HEAT AND HUMIDITY EXPECTED
  THROUGH THE MID-AFTERNOON HOURS. BY LATE AFTERNOON...DRIER AIR
  WILL BE WORKING IN TO DROP THE HEAT INDEX BELOW 100 DEGREES.

* HEAT INDEX VALUES...UP TO 105 DUE TO TEMPERATURES IN THE MID
  90S...AND DEWPOINTS IN THE MID 70S.

* IMPACTS...THE COMBINATION OF HOT TEMPERATURES AND HIGH 
  HUMIDITY WILL LIKELY 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...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES AND HIGH
HUMIDITY WILL OCCUR. THIS COMBINATION WILL CREATE A SITUATION IN
WHICH HEAT-RELATED ILLNESSES ARE POSSIBLE...ESPECIALLY FOR THOSE
LIVING IN UN-AIR CONDITIONED HOMES OR APARTMENTS. PEOPLE IN THE
ADVISORY AREA ARE ADVISED TO AVOID POORLY VENTILATED AREAS AND
PROLONGED WORK IN THE SUN. ALSO...KEEP PLENTY OF LIQUIDS ON HAND
AND TRY TO STAY IN AN AIR CONDITIONED ENVIRONMENT.

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.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO THE EARLY MORNING
OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

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.

BEAT THE HEAT...CHECK THE BACKSEAT! 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.

&&

$$

ILZ074-079-MOZ074-075-084-085-099-240000-
/O.CON.KLSX.HT.Y.0003.160623T1700Z-160624T0000Z/
IRON MO-MADISON MO-RANDOLPH IL-REYNOLDS MO-SAINT FRANCOIS MO-
SAINTE GENEVIEVE MO-WASHINGTON IL-
INCLUDING THE CITIES OF...CHESTER...FARMINGTON...SPARTA
1115 AM CDT THU JUN 23 2016

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* TIMING...TEMPERATURES WILL RISE INTO THE 90S BY MIDDAY WITH 
  DANGEROUS LEVELS OF HEAT DURING THE AFTERNOON AND INTO THE 
  EARLY EVENING.

* HEAT INDEX VALUES...UP TO 105 DUE TO TEMPERATURES IN THE MID 
  90S...AND DEWPOINTS IN THE LOWER 70S.

* IMPACTS...THE COMBINATION OF HOT TEMPERATURES AND HIGH 
  HUMIDITY WILL LIKELY 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...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES AND HIGH
HUMIDITY WILL OCCUR. THIS COMBINATION WILL CREATE A SITUATION IN
WHICH HEAT-RELATED ILLNESSES ARE POSSIBLE...ESPECIALLY FOR THOSE
LIVING IN UN-AIR CONDITIONED HOMES OR APARTMENTS. PEOPLE IN THE
ADVISORY AREA ARE ADVISED TO AVOID POORLY VENTILATED AREAS AND
PROLONGED WORK IN THE SUN. ALSO...KEEP PLENTY OF LIQUIDS ON HAND
AND TRY TO STAY IN AN AIR CONDITIONED ENVIRONMENT.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO THE EARLY MORNING
OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

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.

BEAT THE HEAT...CHECK THE BACKSEAT! 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.

&&

$$

TES

331 
WWUS73 KLSX 232044
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
344 PM CDT THU JUN 23 2016

ILZ100>102-MOZ061-063>065-232145-
/O.EXP.KLSX.HT.Y.0003.000000T0000Z-160623T2100Z/
JEFFERSON MO-MADISON IL-MONROE IL-SAINT CHARLES MO-SAINT CLAIR IL-
SAINT LOUIS CITY MO-SAINT LOUIS MO-
INCLUDING THE CITIES OF...ALTON...BELLEVILLE...CAHOKIA...
EDWARDSVILLE...SAINT CHARLES...SAINT LOUIS
344 PM CDT THU JUN 23 2016

...HEAT ADVISORY WILL EXPIRE AT 4 PM CDT THIS AFTERNOON...

DRIER AIR BEHIND A COLD FRONT IS IN THE PROCESS OF WORKING
THROUGH THE SAINT LOUIS METRO AREA...AND ALTHOUGH TEMPERATURES ARE
REMAINING STEADY IN THE 90S...HAS RESULTED IN LOWER HEAT INDEX
VALUES. AS A RESULT...THE HEAT ADVISORY IS BEING ALLOWED TO
EXPIRE AT 4 PM THIS AFTERNOON. 

$$

ILZ074-079-MOZ074-075-084-085-099-240000-
/O.CON.KLSX.HT.Y.0003.000000T0000Z-160624T0000Z/
IRON MO-MADISON MO-RANDOLPH IL-REYNOLDS MO-SAINT FRANCOIS MO-
SAINTE GENEVIEVE MO-WASHINGTON IL-
INCLUDING THE CITIES OF...CHESTER...FARMINGTON...SPARTA
344 PM CDT THU JUN 23 2016

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* TIMING...TEMPERATURES WILL RISE INTO THE 90S BY MIDDAY WITH 
  DANGEROUS LEVELS OF HEAT DURING THE AFTERNOON AND INTO THE 
  EARLY EVENING.

* HEAT INDEX VALUES...UP TO 107 DUE TO TEMPERATURES IN THE MID 
  90S...AND DEWPOINTS IN THE MID 70S.

* IMPACTS...THE COMBINATION OF HOT TEMPERATURES AND HIGH 
  HUMIDITY WILL LIKELY 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...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES AND HIGH
HUMIDITY WILL OCCUR. THIS COMBINATION WILL CREATE A SITUATION IN
WHICH HEAT-RELATED ILLNESSES ARE POSSIBLE...ESPECIALLY FOR THOSE
LIVING IN UN-AIR CONDITIONED HOMES OR APARTMENTS. PEOPLE IN THE
ADVISORY AREA ARE ADVISED TO AVOID POORLY VENTILATED AREAS AND
PROLONGED WORK IN THE SUN. ALSO...KEEP PLENTY OF LIQUIDS ON HAND
AND TRY TO STAY IN AN AIR CONDITIONED ENVIRONMENT.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO THE EARLY MORNING
OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

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.

BEAT THE HEAT...CHECK THE BACKSEAT! 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.

&&

$$

TES

723 
WWUS73 KLSX 240005
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
705 PM CDT THU JUN 23 2016


ILZ074-079-MOZ074-075-084-085-099-240115-
/O.EXP.KLSX.HT.Y.0003.000000T0000Z-160624T0000Z/
IRON MO-MADISON MO-RANDOLPH IL-REYNOLDS MO-SAINT FRANCOIS MO-
SAINTE GENEVIEVE MO-WASHINGTON IL-
INCLUDING THE CITIES OF...CHESTER...FARMINGTON...SPARTA
705 PM CDT THU JUN 23 2016

...HEAT ADVISORY HAS EXPIRED...

DRIER AIR BEHIND A COLD FRONT IS IN THE PROCESS OF WORKING
THROUGH THE AREA...AND ALTHOUGH TEMPERATURES ARE REMAINING STEADY
IN THE 90S...HAS RESULTED IN LOWER HEAT INDEX VALUES. AS A
RESULT...THE HEAT ADVISORY IS BEING ALLOWED TO EXPIRE AT 7 PM
THIS EVENING.

$$

BYRD

Area Forecast Discussion
National Weather Service Saint Louis MO
357 AM CDT THU JUN 23 2016

.SHORT TERM...  (Through Late This Afternoon)
Issued at 317 AM CDT Thu Jun 23 2016

Cold front extending from a surface low over northern IN southwest
to near UIN and MCI will move southeastward through the forecast
area today. Do not see much convection this morning as the
atmosphere is initially capped with warm 700 mb temperatures.
Scattered convection should break out this afternoon along and
south of the front as the atmosphere become very unstable across
southeast MO and southwest IL, south of I-70. High temperatures
will be a little cooler across northeast MO and west central IL
behind the cold front with surface dew points also gradually
lowering across this area. Temperatures will be quite hot again
across southeast MO and southwest IL with high values of humidity
again today leading to heat indices approaching 105 this
afternoon. For this reason will issue a heat advisory this
afternoon across parts of southeast MO and southwest IL.

GKS

.LONG TERM...  (Tonight through Wednesday)
Issued at 317 AM CDT Thu Jun 23 2016

Scattered convection may linger tonight across southeast MO,
otherwise surface high pressure building southward into the area
behind the cold front will lead to cooler and more normal low
temperatures tonight. Although an upper level ridge will try to
build back over the region on Friday, a weak shortwave along with
a return southerly low level flow on the backside of the retreating
surface ridge may bring scattered showers/storms to central and
southeast MO on Friday and to most of the area Friday night.
Scattered mainly afternoon and early evening convection is
expected on Saturday and Saturday night. An upper level trough
will move eastward through the northern Plains and into the Great
Lakes region Sunday through Monday with a weakening cold front
dropping southeastward through the region. This front will be the
focus for more showers and storms Sunday through Monday. Should
see at least slightly cooler temperatures beginning Monday night
after a warm weekend, and these cooler temperatures should
continue for the rest of the extended forecast as we get into a
more northwesterly upper level flow pattern as the upper level
ridge retrogrades into the southwestern US with upper level
troughing over the Great Lakes region. A surface ridge will also
build southeastward into our region from the northern Plains.

GKS

&&

.AVIATION...  (For the 06z TAFs through 06z Thursday Night)
Issued at 1131 PM CDT Wed Jun 22 2016

Cold front making slow but steady progress south into northern
Missouri and west central Illinois late this evening as low
pressure moves east across northern Illinois. Wind shift is
gradual with the front from south-southwest to west. Eventually
wind will come around to the northwest by tomorrow evening.
Atmosphere is very warm aloft and convection is not expected to
develop with this front until it is well south of the terminals on
Thursday afternoon. Therefore...VFR conditions are anticipated
with a scattering of mid level clouds and cumulus tomorrow morning
with the frontal passage.

Specifics for KSTL:
VFR conditions are expected with a gradual wind shift from south
to west with the front tomorrow morning and then to the northwest
tomorrow evening.

CVKING

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...Heat Advisory from noon today to 7 PM CDT this evening for Iron
     MO-Madison MO-Reynolds MO-Saint Francois MO-Sainte
     Genevieve MO.

IL...Heat Advisory from noon today to 7 PM CDT this evening for
     Randolph IL-Washington IL.

&&

WFO LSX

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
353 PM CDT WED JUN 22 2016

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-231115-
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL-
CALHOUN IL-JERSEY IL-MADISON IL-SAINT CLAIR IL-MONROE IL-KNOX MO-
LEWIS MO-SHELBY MO-MARION MO-MONROE MO-RALLS MO-PIKE MO-BOONE MO-
AUDRAIN MO-MONITEAU MO-COLE MO-OSAGE MO-CALLAWAY MO-MONTGOMERY MO-
LINCOLN MO-GASCONADE MO-WARREN MO-SAINT CHARLES MO-FRANKLIN MO-
SAINT LOUIS MO-SAINT LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO-
WASHINGTON MO-SAINT FRANCOIS MO-SAINTE GENEVIEVE MO-IRON MO-
MADISON MO-REYNOLDS MO-
353 PM CDT WED JUN 22 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND
CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS.

.DAY ONE...TONIGHT

DANGEROUS LEVELS OF HEAT ARE EXPECTED EARLY THIS EVENING ACROSS A
GOOD PORTION OF MISSOURI AND PARTS OF WEST CENTRAL AND SOUTHWEST
ILLINOIS. A HEAT ADVISORY REMAINS IN EFFECT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A FEW STRONG TO SEVERE STORMS ARE POSSIBLE THURSDAY AFTERNOON
ACROSS PORTIONS OF CENTRAL AND SOUTHEAST MISSOURI AND SOUTHWEST
ILLINOIS AS A COLD FRONT PROGRESSES THROUGH THE REGION. THE
PRIMARY SEVERE WEATHER THREAT WILL BE DAMAGING WIND GUSTS AND
LARGE HAIL. A FEW STRONG TO SEVERE STORMS ARE ALSO POSSIBLE ON
FRIDAY ACROSS PARTS OF CENTRAL AND SOUTHEAST MISSOURI.

HEAT INDEX VALUES MAY APPROACH 105 ON THURSDAY AFTERNOON ACROSS
PARTS OF SOUTHEAST MISSOURI.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT.

GOSSELIN