Alert archive / Missouri / Heat Advisories in 2012

Heat Advisory 3, NWS St. Louis, MO

July 15, 201229 counties in Missouri; 17 counties in Illinois

NWS St. Louis, MO issued this heat advisory at Jul 15, 2012, 3:51 PM CDT for 29 counties in Missouri; 17 counties in Illinois. It took effect at Jul 16, 2012, 1:00 PM CDT. It was in force for 3 days.

The area

The counties it named.

The facts

Issued
Jul 15, 2012, 3:51 PM CDT (20:51 UTC)
In effect from
Jul 16, 2012, 1:00 PM CDT
Expired
Jul 19, 2012, 8:00 PM CDT
In force
3 days
Issued by
NWS St. Louis, MO
All 46 counties

Adams County, IL, Bond County, IL, Brown County, IL, Calhoun County, IL, Clinton County, IL, Fayette County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Pike County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Madison County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Shelby County, MO, Warren County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 18 km from the middle of the area, began a volume at 20:53 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.9 hours before the alert went out and 241 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2012-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1298 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2012-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1298 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
970 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

955 
WWUS73 KLSX 152051
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
351 PM CDT SUN JUL 15 2012

...DANGEROUS HEAT WILL RETURN THIS COMING WEEK...

.THE HEAT AND HUMIDITY WILL RETURN THIS WEEK WITH HIGH TEMPERATURES
IN THE UPPER 90S TO AROUND 100 DEGREES. THIS WILL RESULT IN
DANGEROUS LEVELS OF HEAT BEGINNING ON MONDAY AND CONTINUING
THROUGH THURSDAY.

ILZ100-101-MOZ061-063-064-161115-
/O.NEW.KLSX.HT.Y.0003.120716T1800Z-120720T0100Z/
MADISON IL-ST. CLAIR IL-ST. CHARLES MO-ST. LOUIS MO-
ST. LOUIS CITY MO-
INCLUDING THE CITIES OF...EDWARDSVILLE...BELLEVILLE...
ST CHARLES...ST LOUIS
351 PM CDT SUN JUL 15 2012

...HEAT ADVISORY IN EFFECT FROM 1 PM MONDAY TO 8 PM CDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 1 PM MONDAY TO 8 PM CDT
THURSDAY. 

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED
  MONDAY AFTERNOON THROUGH THURSDAY.

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES OF AROUND
  100 DEGREES CAN BE EXPECTED ON MONDAY WITH VALUES OF 105 DEGREES
  OR GREATER TUESDAY THROUGH THURSDAY.

* IMPACTS...HEAT RELATED ILLNESS SUCH AS HEAT EXHAUSTION OR HEAT
  STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE THROUGH THE
  WEEK AS THE HEAT CONTINUES TO BUILD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PEOPLE IN THE ST. LOUIS METROPOLITAN AREA CAN GET INFORMATION
ABOUT COOLING CENTERS OR ENERGY ASSISTANCE RELATED TO THE
EXCESSIVE HEAT BY CALLING THE UNITED WAY OF GREATER ST. LOUIS AT
800-427-4626...OR IF CALLING FROM A LAND LINE PHONE DIAL 2-1-1.
YOU CAN ALSO CALL COOL DOWN ST. LOUIS AT 314-241-7668.

&&

$$

GLASS
11 follow-up statements
601 
WWUS73 KLSX 160855
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
355 AM CDT MON JUL 16 2012

...DANGEROUS HEAT WILL RETURN THIS COMING WEEK...

.THE HEAT AND HUMIDITY WILL RETURN THIS WEEK WITH HIGH
TEMPERATURES IN THE UPPER 90S TO LOW 100S. THIS WILL RESULT IN
DANGEROUS LEVELS OF HEAT BEGINNING ON MONDAY AND CONTINUING
THROUGH THURSDAY.

ILZ100-101-MOZ061-063-064-162100-
/O.CON.KLSX.HT.Y.0003.120716T1800Z-120720T0100Z/
MADISON IL-ST. CLAIR IL-ST. CHARLES MO-ST. LOUIS MO-
ST. LOUIS CITY MO-
INCLUDING THE CITIES OF...EDWARDSVILLE...BELLEVILLE...
ST CHARLES...ST LOUIS
355 AM CDT MON JUL 16 2012

...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM CDT THURSDAY...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED 
  MONDAY AFTERNOON THROUGH THURSDAY. 

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES OF AROUND
  100 DEGREES CAN BE EXPECTED ON MONDAY AND TUESDAY WITH VALUES OF
  105 DEGREES OR GREATER WEDNESDAY AND THURSDAY.

* IMPACTS...HEAT RELATED ILLNESS SUCH AS HEAT EXHAUSTION OR HEAT 
  STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE THROUGH THE 
  WEEK AS THE HEAT CONTINUES TO BUILD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PEOPLE IN THE ST. LOUIS METROPOLITAN AREA CAN GET INFORMATION
ABOUT COOLING CENTERS OR ENERGY ASSISTANCE RELATED TO THE
EXCESSIVE HEAT BY CALLING THE UNITED WAY OF GREATER ST. LOUIS AT
800-427-4626...OR IF CALLING FROM A LAND LINE PHONE DIAL 2-1-1.
YOU CAN ALSO CALL COOL DOWN ST. LOUIS AT 314-241-7668.

&&

$$

MILLER
909 
WWUS73 KLSX 162037
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
337 PM CDT MON JUL 16 2012

...DANGEROUS HEAT WILL RETURN THIS COMING WEEK...

.THE HEAT AND HUMIDITY WILL RETURN THIS WEEK WITH HIGH
TEMPERATURES IN THE UPPER 90S TO LOW 100S. THIS WILL RESULT IN
DANGEROUS LEVELS OF HEAT CONTINUING THROUGH THURSDAY.

ILZ058>060-064-065-069-070-074-079-095>099-102-MOZ018-019-026-027-
034>036-041-042-047>052-059-060-062-065-170845-
/O.EXB.KLSX.HT.Y.0003.120717T1700Z-120720T0100Z/
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-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-FRANKLIN MO-JEFFERSON MO-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...HANNIBAL...BOWLING GREEN...COLUMBIA...MEXICO...
JEFFERSON CITY...UNION
337 PM CDT MON JUL 16 2012

...HEAT ADVISORY IN EFFECT FROM NOON TUESDAY TO 8 PM CDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM NOON TUESDAY TO 8 PM CDT
THURSDAY. 

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED
  THROUGH THURSDAY.

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES OF AROUND
  100 DEGREES CAN BE EXPECTED ON TUESDAY WITH VALUES OF 105
  DEGREES OR GREATER ON WEDNESDAY AND THURSDAY.

* IMPACTS...HEAT RELATED ILLNESS SUCH AS HEAT EXHAUSTION OR HEAT 
  STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE THROUGH THE 
  WEEK AS THE HEAT CONTINUES TO BUILD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

ILZ100-101-MOZ061-063-064-170845-
/O.CON.KLSX.HT.Y.0003.000000T0000Z-120720T0100Z/
MADISON IL-ST. CLAIR IL-ST. CHARLES MO-ST. LOUIS MO-
ST. LOUIS CITY MO-
INCLUDING THE CITIES OF...EDWARDSVILLE...BELLEVILLE...
ST CHARLES...ST LOUIS
337 PM CDT MON JUL 16 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THURSDAY...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED THROUGH
  THURSDAY.

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES OF AROUND
  100 DEGREES CAN BE EXPECTED ON MONDAY AND TUESDAY WITH VALUES OF
  105 DEGREES OR GREATER ON WEDNESDAY AND THURSDAY.

* IMPACTS...HEAT RELATED ILLNESS SUCH AS HEAT EXHAUSTION OR HEAT 
  STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE THROUGH THE 
  WEEK AS THE HEAT CONTINUES TO BUILD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PEOPLE IN THE ST. LOUIS METROPOLITAN AREA CAN GET INFORMATION
ABOUT COOLING CENTERS OR ENERGY ASSISTANCE RELATED TO THE
EXCESSIVE HEAT BY CALLING THE UNITED WAY OF GREATER ST. LOUIS AT
800-427-4626...OR IF CALLING FROM A LAND LINE PHONE DIAL 2-1-1.
YOU CAN ALSO CALL COOL DOWN ST. LOUIS AT 314-241-7668.

&&

$$

KANOFSKY
440 
WWUS73 KLSX 170437
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
1137 PM CDT MON JUL 16 2012

...DANGEROUS HEAT AND HUMIDITY RETURNS...

ILZ100-101-MOZ061-063-064-171100-
/O.CON.KLSX.HT.Y.0003.000000T0000Z-120720T0100Z/
MADISON IL-ST. CLAIR IL-ST. CHARLES MO-ST. LOUIS MO-
ST. LOUIS CITY MO-
INCLUDING THE CITIES OF...EDWARDSVILLE...BELLEVILLE...
ST CHARLES...ST LOUIS
1137 PM CDT MON JUL 16 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THURSDAY...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED 
  THROUGH THURSDAY. 

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES OF AROUND 
  100 DEGREES CAN BE EXPECTED ON MONDAY AND TUESDAY WITH VALUES 
  OF 105 DEGREES OR GREATER ON WEDNESDAY AND THURSDAY. 

* IMPACTS...HEAT RELATED ILLNESS SUCH AS HEAT EXHAUSTION OR HEAT 
  STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE THROUGH THE 
  WEEK AS THE HEAT CONTINUES TO BUILD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PEOPLE IN THE ST. LOUIS METROPOLITAN AREA CAN GET INFORMATION
ABOUT COOLING CENTERS OR ENERGY ASSISTANCE RELATED TO THE
EXCESSIVE HEAT BY CALLING THE UNITED WAY OF GREATER ST. LOUIS AT
800-427-4626...OR IF CALLING FROM A LAND LINE PHONE DIAL 2-1-1.
YOU CAN ALSO CALL COOL DOWN ST. LOUIS AT 314-241-7668.

&&

$$

ILZ058>060-064-065-069-070-074-079-095>099-102-MOZ018-019-026-027-
034>036-041-042-047>052-059-060-062-065-171100-
/O.CON.KLSX.HT.Y.0003.120717T1700Z-120720T0100Z/
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-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-FRANKLIN MO-JEFFERSON MO-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...HANNIBAL...BOWLING GREEN...COLUMBIA...MEXICO...
JEFFERSON CITY...UNION
1137 PM CDT MON JUL 16 2012

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TUESDAY TO 8 PM CDT
THURSDAY...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED 
  THROUGH THURSDAY. 

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES OF AROUND 
  100 DEGREES CAN BE EXPECTED ON TUESDAY WITH VALUES OF 105 
  DEGREES OR GREATER ON WEDNESDAY AND THURSDAY. 

* IMPACTS...HEAT RELATED ILLNESS SUCH AS HEAT EXHAUSTION OR HEAT 
  STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE THROUGH THE 
  WEEK AS THE HEAT CONTINUES TO BUILD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CVKING
369 
WWUS73 KLSX 170855
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
355 AM CDT TUE JUL 17 2012

...DANGEROUS HEAT AND HUMIDITY RETURNS...

MOZ072>075-084-085-099-172100-
/O.EXA.KLSX.HT.Y.0003.120717T1700Z-120720T0100Z/
CRAWFORD MO-WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-
IRON MO-MADISON MO-REYNOLDS MO-
INCLUDING THE CITY OF...FARMINGTON
355 AM CDT TUE JUL 17 2012

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM CDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM CDT
THURSDAY. 

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED 
  THROUGH THURSDAY. 

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES OF 100 TO
  105 DEGREES CAN BE EXPECTED THROUGH THURSDAY.

* IMPACTS...HEAT RELATED ILLNESS SUCH AS HEAT EXHAUSTION OR HEAT 
  STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE THROUGH THE 
  WEEK AS THE HEAT CONTINUES TO BUILD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

ILZ100-101-MOZ061-063-064-172100-
/O.CON.KLSX.HT.Y.0003.000000T0000Z-120720T0100Z/
MADISON IL-ST. CLAIR IL-ST. CHARLES MO-ST. LOUIS MO-
ST. LOUIS CITY MO-
INCLUDING THE CITIES OF...EDWARDSVILLE...BELLEVILLE...
ST CHARLES...ST LOUIS
355 AM CDT TUE JUL 17 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THURSDAY...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED 
  THROUGH THURSDAY. 

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES NEAR 105
  DEGREES CAN BE EXPECTED THROUGH THURSDAY.

* IMPACTS...HEAT RELATED ILLNESS SUCH AS HEAT EXHAUSTION OR HEAT 
  STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE THROUGH THE 
  WEEK AS THE HEAT CONTINUES TO BUILD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PEOPLE IN THE ST. LOUIS METROPOLITAN AREA CAN GET INFORMATION
ABOUT COOLING CENTERS OR ENERGY ASSISTANCE RELATED TO THE
EXCESSIVE HEAT BY CALLING THE UNITED WAY OF GREATER ST. LOUIS AT
800-427-4626...OR IF CALLING FROM A LAND LINE PHONE DIAL 2-1-1.
YOU CAN ALSO CALL COOL DOWN ST. LOUIS AT 314-241-7668.

&&

$$

ILZ058>060-064-065-069-070-074-079-095>099-102-MOZ018-019-026-027-
034>036-041-042-047>052-059-060-062-065-172100-
/O.CON.KLSX.HT.Y.0003.120717T1700Z-120720T0100Z/
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-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-FRANKLIN MO-JEFFERSON MO-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...HANNIBAL...BOWLING GREEN...COLUMBIA...MEXICO...
JEFFERSON CITY...UNION
355 AM CDT TUE JUL 17 2012

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CDT
THURSDAY...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED 
  THROUGH THURSDAY. 

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES OF 100 TO
  105 DEGREES CAN BE EXPECTED THROUGH THURSDAY.

* IMPACTS...HEAT RELATED ILLNESS SUCH AS HEAT EXHAUSTION OR HEAT 
  STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE THROUGH THE 
  WEEK AS THE HEAT CONTINUES TO BUILD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

MILLER
002 
WWUS73 KLSX 172052
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
352 PM CDT TUE JUL 17 2012

...DANGEROUS HEAT AND HUMIDITY RETURNS...

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-180900-
/O.CON.KLSX.HT.Y.0003.000000T0000Z-120720T0100Z/
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-ST. 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-ST. CHARLES MO-FRANKLIN MO-
ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO-
WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO-
MADISON MO-REYNOLDS MO-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...
BOWLING GREEN...COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...
UNION...ST LOUIS...FARMINGTON
352 PM CDT TUE JUL 17 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THURSDAY...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED 
  THROUGH THURSDAY. 

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES BETWEEN 103
  AND 106 DEGREES CAN BE EXPECTED THROUGH THURSDAY...WITH VALUES
  AS HIGH AS 108 DEGREES IN ST. LOUIS CITY.

* IMPACTS...HEAT RELATED ILLNESS SUCH AS HEAT EXHAUSTION OR HEAT 
  STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE THROUGH THE 
  WEEK AS THE HEAT CONTINUES TO BUILD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PEOPLE IN THE ST. LOUIS METROPOLITAN AREA CAN GET INFORMATION
ABOUT COOLING CENTERS OR ENERGY ASSISTANCE RELATED TO THE
EXCESSIVE HEAT BY CALLING THE UNITED WAY OF GREATER ST. LOUIS AT
800-427-4626...OR IF CALLING FROM A LAND LINE PHONE DIAL 2-1-1.
YOU CAN ALSO CALL COOL DOWN ST. LOUIS AT 314-241-7668.

&&

$$

PHILLIPSON
014 
WWUS73 KLSX 180947
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
447 AM CDT WED JUL 18 2012

...DANGEROUS HEAT AND HUMIDITY CONTINUES...

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-182200-
/O.CON.KLSX.HT.Y.0003.000000T0000Z-120720T0100Z/
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-ST. 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-ST. CHARLES MO-FRANKLIN MO-
ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO-
WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO-
MADISON MO-REYNOLDS MO-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...
BOWLING GREEN...COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...
UNION...ST LOUIS...FARMINGTON
447 AM CDT WED JUL 18 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THURSDAY...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED 
  THROUGH THURSDAY. 

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES AROUND 105 
  DEGREES CAN BE EXPECTED THROUGH THURSDAY...WITH HIGHER VALUES IN 
  THE ST. LOUIS METRO AREA.

* IMPACTS...HEAT RELATED ILLNESSES SUCH AS HEAT EXHAUSTION OR HEAT 
  STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE THROUGH THE 
  WEEK AS THE HEAT CONTINUES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PEOPLE IN THE ST. LOUIS METROPOLITAN AREA CAN GET INFORMATION
ABOUT COOLING CENTERS OR ENERGY ASSISTANCE RELATED TO THE
EXCESSIVE HEAT BY CALLING THE UNITED WAY OF GREATER ST. LOUIS AT
800-427-4626...OR IF CALLING FROM A LAND LINE PHONE DIAL 2-1-1.
YOU CAN ALSO CALL COOL DOWN ST. LOUIS AT 314-241-7668.

&&

$$

MILLER
332 
WWUS73 KLSX 182016
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
316 PM CDT WED JUL 18 2012

...DANGEROUS HEAT AND HUMIDITY CONTINUES...

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-191100-
/O.CON.KLSX.HT.Y.0003.000000T0000Z-120720T0100Z/
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-ST. 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-ST. CHARLES MO-FRANKLIN MO-
ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO-
WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO-
MADISON MO-REYNOLDS MO-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...
BOWLING GREEN...COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...
UNION...ST LOUIS...FARMINGTON
316 PM CDT WED JUL 18 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THURSDAY...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED 
  THROUGH THURSDAY. 

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES AROUND 
  105 DEGREES CAN BE EXPECTED THROUGH THURSDAY...WITH HIGHER 
  VALUES IN THE ST. LOUIS METRO AREA. 

* IMPACTS...HEAT RELATED ILLNESSES SUCH AS HEAT EXHAUSTION OR 
  HEAT STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE 
  THROUGH THE WEEK AS THE HEAT CONTINUES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PEOPLE IN THE ST. LOUIS METROPOLITAN AREA CAN GET INFORMATION
ABOUT COOLING CENTERS OR ENERGY ASSISTANCE RELATED TO THE
EXCESSIVE HEAT BY CALLING THE UNITED WAY OF GREATER ST. LOUIS AT
800-427-4626...OR IF CALLING FROM A LAND LINE PHONE DIAL 2-1-1.
YOU CAN ALSO CALL COOL DOWN ST. LOUIS AT 314-241-7668.

&&

$$

GLASS
632 
WWUS73 KLSX 190909
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
409 AM CDT THU JUL 19 2012

...DANGEROUS HEAT AND HUMIDITY CONTINUES...

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-192115-
/O.CON.KLSX.HT.Y.0003.000000T0000Z-120720T0100Z/
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-ST. 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-ST. CHARLES MO-FRANKLIN MO-
ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO-
WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO-
MADISON MO-REYNOLDS MO-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...
BOWLING GREEN...COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...
UNION...ST LOUIS...FARMINGTON
409 AM CDT THU JUL 19 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED
  TODAY.

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES BETWEEN 100
  AND 110 DEGREES CAN BE EXPECTED THIS AFTERNOON...WITH THE
  HIGHEST VALUES ALONG AND SOUTH OF INTERSTATE 70.

* IMPACTS...HEAT RELATED ILLNESSES SUCH AS HEAT EXHAUSTION OR 
  HEAT STROKE ARE A REAL THREAT. THE THREAT WILL INCREASE 
  THROUGH THE WEEK AS THE HEAT CONTINUES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PEOPLE IN THE ST. LOUIS METROPOLITAN AREA CAN GET INFORMATION
ABOUT COOLING CENTERS OR ENERGY ASSISTANCE RELATED TO THE
EXCESSIVE HEAT BY CALLING THE UNITED WAY OF GREATER ST. LOUIS AT
800-427-4626...OR IF CALLING FROM A LAND LINE PHONE DIAL 2-1-1.
YOU CAN ALSO CALL COOL DOWN ST. LOUIS AT 314-241-7668.

&&

$$

MILLER
082 
WWUS73 KLSX 190912 CCA
NPWLSX

URGENT - WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE ST LOUIS MO
411 AM CDT THU JUL 19 2012

...DANGEROUS HEAT AND HUMIDITY CONTINUES FOR ONE MORE DAY...

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-192130-
/O.COR.KLSX.HT.Y.0003.000000T0000Z-120720T0100Z/
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-ST. 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-ST. CHARLES MO-FRANKLIN MO-
ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO-
WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO-
MADISON MO-REYNOLDS MO-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
CHESTER...QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...
BOWLING GREEN...COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...
UNION...ST LOUIS...FARMINGTON
411 AM CDT THU JUL 19 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED
  TODAY.

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES BETWEEN 100
  AND 110 DEGREES CAN BE EXPECTED THIS AFTERNOON...WITH THE
  HIGHEST VALUES ALONG AND SOUTH OF INTERSTATE 70.

* IMPACTS...HEAT RELATED ILLNESSES SUCH AS HEAT EXHAUSTION OR HEAT
  STROKE ARE A REAL THREAT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PEOPLE IN THE ST. LOUIS METROPOLITAN AREA CAN GET INFORMATION
ABOUT COOLING CENTERS OR ENERGY ASSISTANCE RELATED TO THE
EXCESSIVE HEAT BY CALLING THE UNITED WAY OF GREATER ST. LOUIS AT
800-427-4626...OR IF CALLING FROM A LAND LINE PHONE DIAL 2-1-1.
YOU CAN ALSO CALL COOL DOWN ST. LOUIS AT 314-241-7668.

&&

$$

MILLER
545 
WWUS73 KLSX 191959
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
259 PM CDT THU JUL 19 2012

...HEAT FORECAST TO RETURN BY SUNDAY AND INTENSIFY NEXT WEEK...

.A COLD FRONT WILL MOVE THROUGH THE FORECAST AREA THIS EVENING
BRINGING SLIGHTLY COOLER TEMPERATURES TO THE AREA FRIDAY AND
SATURDAY. TEMPERATURES WILL BEGIN TO WARM BACK INTO THE UPPER 90S
TO AROUND 100 DEGREES BY SUNDAY AFTERNOON...WITH WIDESPREAD TRIPLE
DIGIT HEAT TAKING HOLD OF THE REGION NEXT WEEK. AFTERNOON AND
EARLY EVENING HEAT INDEX VALUES WILL RANGE FROM 100 TO 110 DEGREES
DAILY FROM SUNDAY THROUGH THURSDAY.

ILZ058>060-064-065-069-070-074-095>102-MOZ018-019-026-027-034>036-
041-042-047>052-059>065-201130-
/O.NEW.KLSX.EH.A.0001.120722T1800Z-120727T0000Z/
/O.CON.KLSX.HT.Y.0003.000000T0000Z-120720T0100Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-ADAMS IL-BROWN IL-PIKE IL-CALHOUN IL-
JERSEY IL-MADISON IL-ST. 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-ST. CHARLES MO-FRANKLIN MO-
ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...BOWLING GREEN...
COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...UNION...
ST LOUIS
259 PM CDT THU JUL 19 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...EXCESSIVE HEAT WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
THURSDAY EVENING...

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED AN EXCESSIVE
HEAT WATCH...WHICH IS IN EFFECT FROM SUNDAY AFTERNOON THROUGH
THURSDAY EVENING. 

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED THIS
  EVENING. A SLIGHT BREAK FROM THE HEAT IS EXPECTED FRIDAY AND
  SATURDAY BEFORE DANGEROUS LEVEL OF HEAT AND HUMIDITY RETURN AND
  INTENSIFY SUNDAY THROUGH THURSDAY.

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES BETWEEN 100
  AND 105 DEGREES CAN BE EXPECTED THIS EVENING...AND AGAIN EACH
  AFTERNOON SUNDAY THROUGH THURSDAY.

* IMPACTS...HEAT RELATED ILLNESSES SUCH AS HEAT EXHAUSTION OR 
  HEAT STROKE ARE A REAL THREAT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

PEOPLE IN THE ST. LOUIS METROPOLITAN AREA CAN GET INFORMATION
ABOUT COOLING CENTERS OR ENERGY ASSISTANCE RELATED TO THE
EXCESSIVE HEAT BY CALLING THE UNITED WAY OF GREATER ST. LOUIS AT
800-427-4626...OR IF CALLING FROM A LAND LINE PHONE DIAL 2-1-1.
YOU CAN ALSO CALL COOL DOWN ST. LOUIS AT 314-241-7668.

&&

$$

ILZ079-MOZ072>075-084-085-099-200100-
/O.CON.KLSX.HT.Y.0003.000000T0000Z-120720T0100Z/
RANDOLPH IL-CRAWFORD MO-WASHINGTON MO-ST. FRANCOIS MO-
STE. GENEVIEVE MO-IRON MO-MADISON MO-REYNOLDS MO-
INCLUDING THE CITIES OF...CHESTER...FARMINGTON
259 PM CDT THU JUL 19 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED THIS
  EVENING.

* HEAT INDEX VALUES...HEAT INDEX VALUES BETWEEN 105 AND 110
  DEGREES CAN BE EXPECTED THIS EVENING.

* IMPACTS...HEAT RELATED ILLNESSES SUCH AS HEAT EXHAUSTION OR 
  HEAT STROKE ARE A REAL THREAT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CVKING
240 
WWUS73 KLSX 200108
NPWLSX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
808 PM CDT THU JUL 19 2012

...HEAT FORECAST TO RETURN BY SUNDAY AND INTENSIFY NEXT WEEK...

.TEMPERATURES WILL BEGIN TO WARM BACK INTO THE UPPER 90S TO
AROUND 100 DEGREES BY SUNDAY AFTERNOON...WITH WIDESPREAD TRIPLE
DIGIT HEAT TAKING HOLD OF THE REGION NEXT WEEK. AFTERNOON AND
EARLY EVENING HEAT INDEX VALUES WILL RANGE FROM 100 TO 110 DEGREES
DAILY FROM SUNDAY THROUGH THURSDAY.

ILZ058>060-064-065-069-070-074-095>102-MOZ018-019-026-027-034>036-
041-042-047>052-059>065-201200-
/O.EXP.KLSX.HT.Y.0003.000000T0000Z-120720T0100Z/
/O.CON.KLSX.EH.A.0001.120722T1800Z-120727T0000Z/
GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL-
MARION IL-WASHINGTON IL-ADAMS IL-BROWN IL-PIKE IL-CALHOUN IL-
JERSEY IL-MADISON IL-ST. 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-ST. CHARLES MO-FRANKLIN MO-
ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-
INCLUDING THE CITIES OF...LITCHFIELD...VANDALIA...SALEM...
QUINCY...EDWARDSVILLE...BELLEVILLE...HANNIBAL...BOWLING GREEN...
COLUMBIA...MEXICO...JEFFERSON CITY...ST CHARLES...UNION...
ST LOUIS
808 PM CDT THU JUL 19 2012

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH THURSDAY EVENING...
...HEAT ADVISORY HAS EXPIRED...

* TIMING...DANGEROUS LEVELS OF HEAT AND HUMIDITY ARE EXPECTED 
  THIS EVENING. A SLIGHT BREAK FROM THE HEAT IS EXPECTED FRIDAY 
  AND SATURDAY BEFORE DANGEROUS LEVEL OF HEAT AND HUMIDITY 
  RETURN AND INTENSIFY SUNDAY THROUGH THURSDAY. 

* HEAT INDEX VALUES...PEAK AFTERNOON HEAT INDEX VALUES BETWEEN 
  100 AND 105 DEGREES CAN BE EXPECTED THIS EVENING...AND AGAIN 
  EACH AFTERNOON SUNDAY THROUGH THURSDAY. 

* IMPACTS...HEAT RELATED ILLNESSES SUCH AS HEAT EXHAUSTION OR 
  HEAT STROKE ARE A REAL THREAT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WATCH IS ISSUED WHEN A PROLONGED PERIOD OF HIGH
TEMPERATURES AND HUMIDITY IS EXPECTED. THIS WILL CREATE A
DANGEROUS SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE POSSIBLE.
BEGIN MAKING PREPARATIONS NOW...BY MAKING SURE YOUR AIR
CONDITIONING IS IN GOOD WORKING ORDER OR KNOW WHERE TO GO TO STAY
COOL.

&&

$$

ILZ079-MOZ072>075-084-085-099-200215-
/O.EXP.KLSX.HT.Y.0003.000000T0000Z-120720T0100Z/
RANDOLPH IL-CRAWFORD MO-WASHINGTON MO-ST. FRANCOIS MO-
STE. GENEVIEVE MO-IRON MO-MADISON MO-REYNOLDS MO-
INCLUDING THE CITIES OF...CHESTER...FARMINGTON
808 PM CDT THU JUL 19 2012

...HEAT ADVISORY HAS EXPIRED...

TEMPERATURES ARE EXPECTED TO BE SOMEWHAT COOLER ON FRIDAY AND
SATURDAY WITH HEAT INDEX VALUES REMAINING BELOW 100 DEGREES.

$$

TILLY

What forecasters said that day

The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS St. Louis, MO wrote its last area forecast discussion before this heat advisory went out at Jul 15, 3:37 PM CDT, 14 minutes earlier.

Area forecast discussion, Jul 15, 3:37 PM CDT, 14 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
337 PM CDT SUN JUL 15 2012

.SHORT TERM...
ISSUED AT 334 PM CDT SUN JUL 15 2012

(TONIGHT)

ISOLATED THUNDERSTORMS WILL PERCOLATE THROUGH THE LATE AFTERNOON AND
EARLY EVENING BEFORE DISSIPATING LATER TONIGHT. SUCH WIDELY
SCATTERED PCPN WILL DO LITTLE TO IMPROVE THE WIDESPREAD MODERATE TO
SEVERE DROUGHT CONDITIONS ACROSS THE CWA. RADIATIONAL COOLING OF A
RELATIVELY DRY AIR MASS SHOULD PRODUCE OVERNIGHT LOWS IN THE UPPER
60S TO LOW 70S.

KANOFSKY

&&

.LONG TERM...
ISSUED AT 334 PM CDT SUN JUL 15 2012

(MONDAY - SUNDAY)

THE MODELS ARE GENERALLY IN GOOD AGREEMENT THAT THE UPPER LOW
CURRENTLY IN NORTH CENTRAL TX WILL CONTINUE TO SLOWLY RETROGRADE
INTO WEST TEXAS OVER THE NEXT 24 HOURS WITH HEIGHTS ALOFT RISING
THROUGH THE MID MS VALLEY.  AS A RESULT THE UPPER HIGH CENTER WILL
EFFECTIVELY BECOME RESTABLISHED THRU THE MID MS VALLEY ON MONDAY.
THE RIDGE ALOFT WILL THEN EXPAND AS THE UPPER LOW WEAKENS AND DRIFTS
IN NORTHERN MEXICO BY THE MIDDLE OF NEXT WEEK WITH THE RIDGE
BUILDING STRONGLY THRU THE CENTRAL PLAINS. A MORE PRONOUNCED SOUTH
SOUTHWESTERLY LOW LEVEL FLOW DEVELOPS AS A RESULT AND H85 TEMPS
STEADILY CLIMB...WITH THE PREFERED NAM SHOWING A NICE THERMAL RIDGE
OF +22 TO +24 DEGC VALUES TUES INTO WED. THIS SHOULD TRANSLATE INTO
A CONTINUED WARM-UP MUCH AS WE HAVE BEEN ADVERTISING WITH HIGH
TEMPERATURES OF AROUND 100 DEGREES ONCE AGAIN ENTERING THE FORECAST.
GIVEN DEW POINTS IN THE 65-70 DEG RANGE...THIS WILL RESULT HEAT
INDICES AROUND 100+ IN THE ST LOUIS METRO MONDAY THROUGH WED.
THURSDAY MAY NOT BE AS HOT BUT DEW POINTS WILL BE A BIT HIGHER. AS A
RESULT...I AM ISSUING A HEAT ADVISORY FOR THE METRO FOR A LONGEVITY
HEAT EVENT WITH 4 DAYS OF 100+ PEAK HEAT INDEX VALUES.

MODEL QPFS...ESPECIALLY THE GFS...MEANWHILE CONTINUE TO WAY
OVERDO THE COVERAGE OF PRECIPITATION. IN GENERAL MOISTURE WILL BE
INCREASING OVER THE NEXT SEVERAL DAYS BUT AT LEAST THRU TUESDAY
THERE ARE NO APPARENT FORCING MECHANISMS OTHER THAN DIURNAL
HEATING. I THINK SPOTTY STORMS WILL ONCE AGAIN BE POSSIBLE...PRIMARILY
ACROSS THE EASTERN HALF OF THE CWA BUT AM NOT EXPECTING MUCH.

A DEEPENING TROF OVER EASTERN CANADA AND INTO THE EASTERN U.S.
LATE WEDNESDAY INTO SATURDAY IS FORECAST TO BRING A QUASI-BACKDOOR
COLD FRONT INTO THE AREA. THE FRONT FLIRTS WILL THE NERN PERIPHERY
OF THE CWA LATE WEDNESDAY INTO EARLY THURS AND THEN THERE IS SOME
GENERAL AGREEMENT THAT ON FRIDAY AND INTO SATURDAY THE FRONT WILL
BECOME STATIONARY THRU EAST CENTRAL MO INTO SRN IL. THE GFS WANTS
TO BRING THE FRONT A BIT FURTHER SOUTH BUT THIS SEEMS A BIT
OVERDONE AND HAVE MORE CLOSELY FOLLOWED THE ECMWF SOLUTION. WHAT
THIS ALL TRANSLATES TO IS THAT POPS WILL STEADILY INCREASE INTO
THE CHANCE RANGE FROM LATE WEDNESDAY INTO SATURDAY WITH THE SAID
FRONT AND INCREASING MOISTURE...INSTABILITY AND LIFT ASSOCIATED
WITH IT. TEMPERATURES WILL ALSO GET KNOCKED DOWN A TAD BUT REMAIN
IN THE 90S. BY NEXT SUNDAY THE FRONT HAS LIFTED NORTH AND THE
UPPER RIDGE BUILDS BACK EAST AND WE COULD BE LOOKING AT 100
DEGREES AGAIN.

GLASS

&&

.AVIATION...
ISSUED AT 1226 PM CDT SUN JUL 15 2012

ISOLATED THUNDERSTORMS ARE EXPECTED AGAIN TODAY HOWEVER PCPN CHCS
AT ANY GIVEN TERMINAL ARE TOO LOW TO INCLUDE IN THE TAF ATTM.
VFR CONDITIONS WITH DIURNAL CU AND SCT CIRRUS ARE EXPECTED FOR
MOST OF THE TAF PD.

SPECIFICS FOR KSTL...ISOLATED THUNDERSTORMS ARE EXPECTED AGAIN
TODAY HOWEVER PCPN CHCS ARE TOO LOW TO INCLUDE IN THE KSTL TAF.
VFR CONDITIONS WITH DIURNAL CU AND SCT CIRRUS ARE EXPECTED FOR
MOST OF THE TAF PD.

KANOFSKY

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...HEAT ADVISORY FROM 1 PM MONDAY TO 8 PM CDT THURSDAY FOR ST.
     CHARLES MO-ST. LOUIS CITY MO-ST. LOUIS MO.

IL...HEAT ADVISORY FROM 1 PM MONDAY TO 8 PM CDT THURSDAY FOR MADISON
     IL-ST. CLAIR IL.

&&

WFO LSX
Hazardous weather outlook, Jul 15, 11:54 AM CDT, 3 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
1154 AM CDT SUN JUL 15 2012

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-161115-
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-ST. 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-ST. CHARLES MO-FRANKLIN MO-
ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO-
WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO-
MADISON MO-REYNOLDS MO-
1154 AM CDT SUN JUL 15 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A CHANCE OF THUNDERSTORMS ACROSS SOUTHEAST MISSOURI AND
SOUTHWESTERN ILLINOIS TODAY. SEVERE WEATHER IS NOT EXPECTED.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THERE IS A SLIGHT CHANCE FOR MAINLY AFTERNOON THUNDERSTORMS ON
MONDAY...PRIMARILY OVER SOUTHEAST MISSOURI AND SOUTHWESTERN
ILLINOIS.

HEAT INDEX VALUES ARE EXPECTED TO TOP OUT AROUND 105 DEGREES IN
THE SAINT LOUIS METRO AREA WEDNESDAY AFTERNOON.

THUNDERSTORMS WILL THREATEN PARTS OF THE REGION AGAIN FROM
WEDNESDAY AFTERNOON OVER NORTHEAST MISSOURI...WEST CENTRAL
ILLINOIS AND PARTS OF SOUTHWESTERN ILLINOIS TO A LARGER PORTION
OF THE REGION FROM WEDNESDAY NIGHT THROUGH FRIDAY AS A COLD FRONT
DRIFTS ACROSS THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT.

GLASS

Nearby

Heat Advisories in Missouri, 2012Heat Advisories in Illinois, 2012Every heat advisory in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.