Alert archive / South Dakota / Heat Advisories in 2012

Heat Advisory 6, NWS Sioux Falls, SD

July 18, 201222 counties in South Dakota; 11 counties in Iowa; Dakota County, Dixon County, Nebraska

NWS Sioux Falls, SD issued this heat advisory at Jul 18, 2012, 3:54 PM CDT for 22 counties in South Dakota; 11 counties in Iowa; Dakota County, Dixon County, Nebraska. It took effect at Jul 19, 2012, 1:00 PM CDT. It was in force for 5 days.

The area

The counties it named.

The facts

Issued
Jul 18, 2012, 3:54 PM CDT (20:54 UTC)
In effect from
Jul 19, 2012, 1:00 PM CDT
Expired
Jul 24, 2012, 8:00 PM CDT
In force
5 days
Issued by
NWS Sioux Falls, SD
All 35 counties

Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Ida County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Dakota County, NE, Dixon County, NE, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brule County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 42 km from the middle of the area, began a volume at 20:57 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

Aberdeen, SD (KABR), launched 12:00Z, 8.9 hours before the alert went out and 206 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, Aberdeen, SD at 12:00Z on 2012-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 86 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, Aberdeen, SD at 12:00Z on 2012-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
86 J/kg
Mixed-layer CIN
-255 J/kg
Mixed-layer LCL
894 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
-5 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.

508 
WWUS73 KFSD 182054
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
354 PM CDT WED JUL 18 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES TODAY
ACROSS SOUTH CENTRAL AND SOUTHEAST SOUTH DAKOTA...EXTREME
NORTHEAST NEBRASKA AND INTO FAR NORTHWEST IOWA. AN EXTENDED PERIOD OF
HEAT AND HUMIDITY WILL SET UP ACROSS SOUTH CENTRAL SOUTH DAKOTA
THURSDAY THROUGH SATURDAY WITH ANOTHER ROUND OF HEAT INDEX VALUES OF
100 TO 105 EACH DAY.

SDZ050-052-057>060-063>065-068-069-190500-
/O.NEW.KFSD.HT.Y.0006.120719T1800Z-120722T0200Z/
/O.CON.KFSD.HT.Y.0005.000000T0000Z-120719T0100Z/
GREGORY-JERAULD-BRULE-AURORA-DAVISON-HANSON-CHARLES MIX-DOUGLAS-
HUTCHINSON-BON HOMME-YANKTON-
INCLUDING THE CITIES OF...GREGORY...BURKE...WESSINGTON SPRINGS...
ALPENA...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...ALEXANDRIA...EMERY...WAGNER...PLATTE...
LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...PARKSTON...
FREEMAN...MENNO...TRIPP...TYNDALL...SCOTLAND...SPRINGFIELD...
AVON...TABOR...YANKTON
354 PM CDT WED JUL 18 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 1 PM THURSDAY TO 9 PM CDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 1 PM THURSDAY TO 9 PM CDT
SATURDAY. 

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES WILL
  CONTINUE THROUGH THE EARLY EVENING. HOT AND HUMID CONDITIONS ARE
  EXPECTED AGAIN THURSDAY THROUGH SATURDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$

IAZ001-002-012-013-020-021-031-032-NEZ013-014-SDZ053-061-062-066-
067-070-071-190100-
/O.CON.KFSD.HT.Y.0005.000000T0000Z-120719T0100Z/
LYON-OSCEOLA-SIOUX-OBRIEN-PLYMOUTH-CHEROKEE-WOODBURY-IDA-DIXON-
DAKOTA-SANBORN-MCCOOK-MINNEHAHA-TURNER-LINCOLN-CLAY-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...ORANGE CITY...SIOUX CENTER...SHELDON...
HARTLEY...SANBORN...LE MARS...CHEROKEE...SIOUX CITY...IDA GROVE...
HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...WOONSOCKET...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...
HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG...
VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
354 PM CDT WED JUL 18 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES WILL
  CONTINUE THROUGH THE EARLY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
22 follow-up statements
151 
WWUS73 KFSD 190102
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
802 PM CDT WED JUL 18 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES THURSDAY
THROUGH SATURDAY ACROSS SOUTH CENTRAL SOUTH DAKOTA. VERY LITTLE
RELIEF IS EXPECTED AT NIGHT WITH LOWS IN THE 70S.


SDZ050-052-057>060-063>065-068-069-190915-
/O.EXP.KFSD.HT.Y.0005.000000T0000Z-120719T0100Z/
/O.CON.KFSD.HT.Y.0006.120719T1800Z-120722T0200Z/
GREGORY-JERAULD-BRULE-AURORA-DAVISON-HANSON-CHARLES MIX-DOUGLAS-
HUTCHINSON-BON HOMME-YANKTON-
INCLUDING THE CITIES OF...GREGORY...BURKE...WESSINGTON SPRINGS...
ALPENA...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...ALEXANDRIA...EMERY...WAGNER...PLATTE...
LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...PARKSTON...
FREEMAN...MENNO...TRIPP...TYNDALL...SCOTLAND...SPRINGFIELD...
AVON...TABOR...YANKTON
802 PM CDT WED JUL 18 2012

...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THURSDAY TO 9 PM CDT
SATURDAY...
...HEAT ADVISORY WILL EXPIRE AT 8 PM CDT THIS EVENING...

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES ARE
  EXPECTED THURSDAY THROUGH SATURDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$

IAZ001-002-012-013-020-021-031-032-NEZ013-014-SDZ053-061-062-066-
067-070-071-190215-
/O.EXP.KFSD.HT.Y.0005.000000T0000Z-120719T0100Z/
LYON-OSCEOLA-SIOUX-OBRIEN-PLYMOUTH-CHEROKEE-WOODBURY-IDA-DIXON-
DAKOTA-SANBORN-MCCOOK-MINNEHAHA-TURNER-LINCOLN-CLAY-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...ORANGE CITY...SIOUX CENTER...SHELDON...
HARTLEY...SANBORN...LE MARS...CHEROKEE...SIOUX CITY...IDA GROVE...
HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...WOONSOCKET...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...
HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG...
VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
802 PM CDT WED JUL 18 2012

...HEAT ADVISORY WILL EXPIRE AT 8 PM CDT THIS EVENING...

TEMPERATURES CONTINUE TO COOL OFF ACROSS THE AREA THIS EVENING AND
HAVE DROPPED BELOW ADVISORY LEVEL. LOWS TONIGHT WILL BE NEAR 70.

$$
181 
WWUS73 KFSD 190838
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
338 AM CDT THU JUL 19 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES
THURSDAY THROUGH SATURDAY ACROSS SOUTH CENTRAL SOUTH DAKOTA. VERY
LITTLE RELIEF IS EXPECTED AT NIGHT WITH LOWS IN THE 70S.

NEZ013-014-SDZ038-053-070-191645-
/O.EXA.KFSD.HT.Y.0006.120719T1800Z-120722T0200Z/
DIXON-DAKOTA-BEADLE-SANBORN-CLAY-
INCLUDING THE CITIES OF...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...WOONSOCKET...VERMILLION
338 AM CDT THU JUL 19 2012

...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM CDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM
CDT SATURDAY. 

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES ARE
  EXPECTED DURING THE AFTERNOON AND EARLY EVENING HOURS TODAY THROUGH
  SATURDAY. NIGHTTIME WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY
  FALL INTO THE 70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$

SDZ050-052-057>060-063>065-068-069-191645-
/O.CON.KFSD.HT.Y.0006.120719T1800Z-120722T0200Z/
GREGORY-JERAULD-BRULE-AURORA-DAVISON-HANSON-CHARLES MIX-DOUGLAS-
HUTCHINSON-BON HOMME-YANKTON-
INCLUDING THE CITIES OF...GREGORY...BURKE...WESSINGTON SPRINGS...
ALPENA...CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...
STICKNEY...MITCHELL...ALEXANDRIA...EMERY...WAGNER...PLATTE...
LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...PARKSTON...
FREEMAN...MENNO...TRIPP...TYNDALL...SCOTLAND...SPRINGFIELD...
AVON...TABOR...YANKTON
338 AM CDT THU JUL 19 2012

...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
9 PM CDT SATURDAY...

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES ARE
  EXPECTED DURING THE AFTERNOON AND EARLY EVENING HOURS TODAY THROUGH
  SATURDAY. NIGHTTIME WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY
  FALL INTO THE 70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
420 
WWUS73 KFSD 191641
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1141 AM CDT THU JUL 19 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES
THURSDAY THROUGH SATURDAY ACROSS SOUTH CENTRAL SOUTH DAKOTA. VERY
LITTLE RELIEF IS EXPECTED AT NIGHT WITH LOWS IN THE 70S.

SDZ039-054-055-061-062-066-067-071-200045-
/O.EXA.KFSD.HT.Y.0006.120719T1800Z-120722T0200Z/
KINGSBURY-MINER-LAKE-MCCOOK-MINNEHAHA-TURNER-LINCOLN-UNION-
INCLUDING THE CITIES OF...DE SMET...ARLINGTON...LAKE PRESTON...
HOWARD...MADISON...SALEM...CANISTOTA...BRIDGEWATER...MONTROSE...
SIOUX FALLS...PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...
CHANCELLOR...CANTON...LENNOX...TEA...HARRISBURG...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
1141 AM CDT THU JUL 19 2012

...HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT UNTIL 9 PM CDT SATURDAY. 

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES 
  ARE EXPECTED DURING THE AFTERNOON AND EARLY EVENING HOURS 
  TODAY THROUGH SATURDAY. NIGHTTIME WILL BRING LITTLE RELIEF...
  AS TEMPERATURES ONLY FALL INTO THE 70S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$

NEZ013-014-SDZ038-050-052-053-057>060-063>065-068>070-200045-
/O.CON.KFSD.HT.Y.0006.120719T1800Z-120722T0200Z/
DIXON-DAKOTA-BEADLE-GREGORY-JERAULD-SANBORN-BRULE-AURORA-DAVISON-
HANSON-CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON-CLAY-
INCLUDING THE CITIES OF...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...GREGORY...BURKE...WESSINGTON SPRINGS...
ALPENA...WOONSOCKET...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...WAGNER...
PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...
PARKSTON...FREEMAN...MENNO...TRIPP...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION
1141 AM CDT THU JUL 19 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT SATURDAY...

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES 
  ARE EXPECTED DURING THE AFTERNOON AND EARLY EVENING HOURS 
  TODAY THROUGH SATURDAY. NIGHTTIME WILL BRING LITTLE RELIEF...
  AS TEMPERATURES ONLY FALL INTO THE 70S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
159 
WWUS73 KFSD 192039
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
339 PM CDT THU JUL 19 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES
THROUGH SATURDAY ACROSS SOUTHEAST SOUTH DAKOTA AND FAR NORTHEAST
NEBRASKA. VERY LITTLE RELIEF IS EXPECTED AT NIGHT WITH LOWS IN THE
70S.

NEZ013-014-SDZ038-039-050-052>055-057>071-200445-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120722T0200Z/
DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-JERAULD-SANBORN-MINER-LAKE-
BRULE-AURORA-DAVISON-HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...DE SMET...ARLINGTON...LAKE PRESTON...
GREGORY...BURKE...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...
HOWARD...MADISON...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER...
PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...
PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...
MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
339 PM CDT THU JUL 19 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT SATURDAY...

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES ARE
  EXPECTED DURING THE AFTERNOON AND EARLY EVENING HOURS TODAY THROUGH
  SATURDAY. NIGHTTIME WILL BRING LITTLE RELIEF... AS TEMPERATURES
  ONLY FALL INTO THE 70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
567 
WWUS73 KFSD 200350
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1050 PM CDT THU JUL 19 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES
THROUGH SATURDAY ACROSS SOUTHEAST SOUTH DAKOTA AND FAR NORTHEAST
NEBRASKA. VERY LITTLE RELIEF IS EXPECTED AT NIGHT WITH LOWS IN
THE 70S.

NEZ013-014-SDZ038-039-050-052>055-057>071-201200-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120722T0200Z/
DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-JERAULD-SANBORN-MINER-LAKE-
BRULE-AURORA-DAVISON-HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...DE SMET...ARLINGTON...LAKE PRESTON...
GREGORY...BURKE...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...
HOWARD...MADISON...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER...
PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...
PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...
MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
1050 PM CDT THU JUL 19 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT SATURDAY...

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES ARE
  EXPECTED DURING THE AFTERNOON AND EARLY EVENING HOURS THROUGH
  SATURDAY. NIGHTTIME WILL BRING LITTLE RELIEF... AS TEMPERATURES
  ONLY FALL INTO THE 70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
664 
WWUS73 KFSD 200854
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
354 AM CDT FRI JUL 20 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES THROUGH
SATURDAY ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST NEBRASKA AND FAR
WESTERN IOWA. VERY LITTLE RELIEF IS EXPECTED AT NIGHT WITH LOWS IN
THE 70S.

IAZ012-020-031-201700-
/O.EXB.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
SIOUX-PLYMOUTH-WOODBURY-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
SIOUX CITY
354 AM CDT FRI JUL 20 2012

...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT TUESDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT UNTIL 8 PM CDT TUESDAY. 

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES ARE
  EXPECTED DURING THE AFTERNOON AND EARLY EVENING HOURS THROUGH
  SATURDAY. NIGHTTIME WILL BRING LITTLE RELIEF...AS TEMPERATURES
  ONLY FALL INTO THE 70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED.
TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON RELATIVES AND NEIGHBORS...AND
DO NOT LEAVE CHILDREN OR PETS UNATTENDED IN VEHICLES.

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.

&&

$$

NEZ013-014-SDZ038-039-050-052>055-057>071-201700-
/O.EXT.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-JERAULD-SANBORN-MINER-LAKE-
BRULE-AURORA-DAVISON-HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-
HUTCHINSON-TURNER-LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...DE SMET...ARLINGTON...LAKE PRESTON...
GREGORY...BURKE...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...
HOWARD...MADISON...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER...
PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...
PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...
MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
354 AM CDT FRI JUL 20 2012

...HEAT ADVISORY NOW IN EFFECT UNTIL 8 PM CDT TUESDAY...

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES ARE
  EXPECTED DURING THE AFTERNOON AND EARLY EVENING HOURS THROUGH
  SATURDAY. NIGHTTIME WILL BRING LITTLE RELIEF...AS TEMPERATURES
  ONLY FALL INTO THE 70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED.
TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON RELATIVES AND NEIGHBORS...AND
DO NOT LEAVE CHILDREN OR PETS UNATTENDED IN VEHICLES.

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.

&&

$$
388 
WWUS73 KFSD 201658
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1158 AM CDT FRI JUL 20 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES
THROUGH SATURDAY ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST
NEBRASKA AND FAR WESTERN IOWA. VERY LITTLE RELIEF IS EXPECTED AT
NIGHT WITH LOW TEMPERATURES IN THE 70S.

IAZ012-020-031-NEZ013-014-SDZ038-039-050-052>055-057>071-210100-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
SIOUX-PLYMOUTH-WOODBURY-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
SIOUX CITY...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
HURON...DE SMET...ARLINGTON...LAKE PRESTON...GREGORY...BURKE...
WESSINGTON SPRINGS...ALPENA...WOONSOCKET...HOWARD...MADISON...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
1158 AM CDT FRI JUL 20 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES ARE
  EXPECTED DURING THE DAYLIGHT HOURS THROUGH SATURDAY. NIGHTTIME
  WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL INTO THE
  70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
940 
WWUS73 KFSD 202015
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
315 PM CDT FRI JUL 20 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES THROUGH
SATURDAY ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST NEBRASKA AND
FAR WESTERN IOWA. VERY LITTLE RELIEF IS EXPECTED AT NIGHT WITH LOW
TEMPERATURES IN THE 70S.

IAZ012-020-031-NEZ013-014-SDZ038-039-050-052>055-057>071-210415-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
SIOUX-PLYMOUTH-WOODBURY-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
SIOUX CITY...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
HURON...DE SMET...ARLINGTON...LAKE PRESTON...GREGORY...BURKE...
WESSINGTON SPRINGS...ALPENA...WOONSOCKET...HOWARD...MADISON...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
315 PM CDT FRI JUL 20 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES ARE
  EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY. NIGHTTIME WILL
  BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL INTO THE 70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
691 
WWUS73 KFSD 210145
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
845 PM CDT FRI JUL 20 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES
THROUGH SATURDAY ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST
NEBRASKA AND FAR WESTERN IOWA. VERY LITTLE RELIEF IS EXPECTED AT
NIGHT WITH LOW TEMPERATURES IN THE 70S.

IAZ012-020-031-NEZ013-014-SDZ038-039-050-052>055-057>071-210945-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
SIOUX-PLYMOUTH-WOODBURY-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
SIOUX CITY...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
HURON...DE SMET...ARLINGTON...LAKE PRESTON...GREGORY...BURKE...
WESSINGTON SPRINGS...ALPENA...WOONSOCKET...HOWARD...MADISON...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
845 PM CDT FRI JUL 20 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES 
  ARE EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY. 
  NIGHTTIME WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL 
  INTO THE 70S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
566 
WWUS73 KFSD 210847
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
347 AM CDT SAT JUL 21 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES
THROUGH SATURDAY ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST
NEBRASKA AND FAR WESTERN IOWA. VERY LITTLE RELIEF IS EXPECTED AT
NIGHT WITH LOW TEMPERATURES IN THE 70S.

IAZ012-020-031-NEZ013-014-SDZ038-039-050-052>055-057>071-211700-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
SIOUX-PLYMOUTH-WOODBURY-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
SIOUX CITY...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
HURON...DE SMET...ARLINGTON...LAKE PRESTON...GREGORY...BURKE...
WESSINGTON SPRINGS...ALPENA...WOONSOCKET...HOWARD...MADISON...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
347 AM CDT SAT JUL 21 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES 
  ARE EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY. 
  NIGHTTIME WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL 
  INTO THE 70S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
055 
WWUS73 KFSD 210858
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
358 AM CDT SAT JUL 21 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES
THROUGH SATURDAY ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST
NEBRASKA AND FAR WESTERN IOWA. VERY LITTLE RELIEF IS EXPECTED AT
NIGHT WITH LOW TEMPERATURES IN THE 70S.

IAZ021-022-032-211700-
/O.EXA.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
CHEROKEE-BUENA VISTA-IDA-
INCLUDING THE CITIES OF...CHEROKEE...STORM LAKE...IDA GROVE...
HOLSTEIN...BATTLE CREEK
358 AM CDT SAT JUL 21 2012

...HEAT ADVISORY IN EFFECT UNTIL 8 PM CDT TUESDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT UNTIL 8 PM CDT TUESDAY. 

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES 
  ARE EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY. 
  NIGHTTIME WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL 
  INTO THE 70S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$

IAZ012-020-031-NEZ013-014-SDZ038-039-050-052>055-057>071-211700-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
SIOUX-PLYMOUTH-WOODBURY-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
SIOUX CITY...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
HURON...DE SMET...ARLINGTON...LAKE PRESTON...GREGORY...BURKE...
WESSINGTON SPRINGS...ALPENA...WOONSOCKET...HOWARD...MADISON...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
358 AM CDT SAT JUL 21 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES 
  ARE EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY. 
  NIGHTTIME WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL 
  INTO THE 70S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
927 
WWUS73 KFSD 211623
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1123 AM CDT SAT JUL 21 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES
THROUGH TUESDAY ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST NEBRASKA
AND FAR WESTERN IOWA. VERY LITTLE RELIEF IS EXPECTED AT NIGHT WITH
LOW TEMPERATURES IN THE 70S.

IAZ012-020>022-031-032-NEZ013-014-SDZ038-039-050-052>055-057>071-
220030-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
SIOUX-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-
BEADLE-KINGSBURY-GREGORY-JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-
DAVISON-HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-
TURNER-LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
CHEROKEE...STORM LAKE...SIOUX CITY...IDA GROVE...HOLSTEIN...
BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
HURON...DE SMET...ARLINGTON...LAKE PRESTON...GREGORY...BURKE...
WESSINGTON SPRINGS...ALPENA...WOONSOCKET...HOWARD...MADISON...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
1123 AM CDT SAT JUL 21 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES 
  ARE EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY. 
  NIGHTTIME WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL 
  INTO THE 70S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
694 
WWUS73 KFSD 212036
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
336 PM CDT SAT JUL 21 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE HEAT INDEX VALUES OF 100 TO 105 DEGREES
THROUGH TUESDAY ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST
NEBRASKA AND NORTHWEST IOWA. VERY LITTLE RELIEF IS EXPECTED AT
NIGHT WITH LOW TEMPERATURES IN THE 70S.

IAZ001>003-013-014-220445-
/O.EXB.KFSD.HT.Y.0006.120722T1800Z-120725T0100Z/
LYON-OSCEOLA-DICKINSON-OBRIEN-CLAY-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
SHELDON...HARTLEY...SANBORN...SPENCER
336 PM CDT SAT JUL 21 2012

...HEAT ADVISORY IN EFFECT FROM 1 PM SUNDAY TO 8 PM CDT TUESDAY...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 1 PM SUNDAY TO 8 PM CDT
TUESDAY. 

* WEATHER CONDITIONS...HEAT INDEX VALUES NEAR 100 DEGREES ARE
  EXPECTED DURING THE DAYLIGHT HOURS SUNDAY THROUGH TUESDAY.
  NIGHTTIME WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL
  INTO THE LOWER 70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$

IAZ012-020>022-031-032-NEZ013-014-SDZ038-039-050-052>055-057>071-
220445-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
SIOUX-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-
BEADLE-KINGSBURY-GREGORY-JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-
DAVISON-HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-
TURNER-LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
CHEROKEE...STORM LAKE...SIOUX CITY...IDA GROVE...HOLSTEIN...
BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
HURON...DE SMET...ARLINGTON...LAKE PRESTON...GREGORY...BURKE...
WESSINGTON SPRINGS...ALPENA...WOONSOCKET...HOWARD...MADISON...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
336 PM CDT SAT JUL 21 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES 
  ARE EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY. 
  NIGHTTIME WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL 
  INTO THE LOWER TO MID 70S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
347 
WWUS73 KFSD 220842
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
342 AM CDT SUN JUL 22 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE PEAK HEAT INDEX VALUES OF 98 TO 103 DEGREES
THROUGH TUESDAY ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST NEBRASKA
AND NORTHWEST IOWA. VERY LITTLE RELIEF IS EXPECTED AT NIGHT WITH
LOW TEMPERATURES IN THE 70S.

IAZ012-020>022-031-032-NEZ013-014-SDZ038-039-050-052>055-057>071-
221645-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
SIOUX-PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-
BEADLE-KINGSBURY-GREGORY-JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-
DAVISON-HANSON-MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-
TURNER-LINCOLN-BON HOMME-YANKTON-CLAY-UNION-
INCLUDING THE CITIES OF...ORANGE CITY...SIOUX CENTER...LE MARS...
CHEROKEE...STORM LAKE...SIOUX CITY...IDA GROVE...HOLSTEIN...
BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...
HURON...DE SMET...ARLINGTON...LAKE PRESTON...GREGORY...BURKE...
WESSINGTON SPRINGS...ALPENA...WOONSOCKET...HOWARD...MADISON...
CHAMBERLAIN...KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...
MITCHELL...ALEXANDRIA...EMERY...SALEM...CANISTOTA...BRIDGEWATER...
MONTROSE...SIOUX FALLS...WAGNER...PLATTE...LAKE ANDES...MARTY...
ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP...
PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...
CANTON...LENNOX...TEA...HARRISBURG...TYNDALL...SCOTLAND...
SPRINGFIELD...AVON...TABOR...YANKTON...VERMILLION...
NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON
342 AM CDT SUN JUL 22 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 98 TO 103 DEGREES ARE
  EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY. NIGHTTIME
  WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL INTO THE 70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$

IAZ001>003-013-014-221645-
/O.CON.KFSD.HT.Y.0006.120722T1800Z-120725T0100Z/
LYON-OSCEOLA-DICKINSON-OBRIEN-CLAY-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
SHELDON...HARTLEY...SANBORN...SPENCER
342 AM CDT SUN JUL 22 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 98 TO 103 DEGREES ARE
  EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY. NIGHTTIME
  WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL INTO THE 70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
556 
WWUS73 KFSD 222040
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
340 PM CDT SUN JUL 22 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE PEAK HEAT INDEX VALUES NEAR 100 DEGREES THROUGH
TUESDAY ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST NEBRASKA AND
NORTHWEST IOWA. VERY LITTLE RELIEF IS EXPECTED AT NIGHT WITH LOW
TEMPERATURES IN THE 70S.

IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ038-039-050-
052>055-057>071-230445-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN...
SPENCER...LE MARS...CHEROKEE...STORM LAKE...SIOUX CITY...
IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...DE SMET...ARLINGTON...LAKE PRESTON...
GREGORY...BURKE...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...
HOWARD...MADISON...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER...
PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...
PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...
MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
340 PM CDT SUN JUL 22 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES NEAR 100 DEGREES ARE
  EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY. NIGHTTIME
  WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL INTO THE
  70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
561 
WWUS73 KFSD 230834
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
334 AM CDT MON JUL 23 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE PEAK HEAT INDEX VALUES NEAR 100 DEGREES
THROUGH TUESDAY ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST
NEBRASKA AND NORTHWEST IOWA. VERY LITTLE RELIEF IS EXPECTED AT
NIGHT WITH LOW TEMPERATURES IN THE 70S.

IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ038-039-050-
052>055-057>071-231645-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN...
SPENCER...LE MARS...CHEROKEE...STORM LAKE...SIOUX CITY...
IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...DE SMET...ARLINGTON...LAKE PRESTON...
GREGORY...BURKE...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...
HOWARD...MADISON...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER...
PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...
PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...
MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
334 AM CDT MON JUL 23 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES NEAR 100 DEGREES ARE 
  EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY. NIGHTTIME 
  WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL INTO THE 
  70S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
148 
WWUS73 KFSD 231532
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1032 AM CDT MON JUL 23 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE PEAK HEAT INDEX VALUES NEAR 100 DEGREES
THROUGH TUESDAY ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST
NEBRASKA AND NORTHWEST IOWA. VERY LITTLE RELIEF IS EXPECTED AT
NIGHT WITH LOW TEMPERATURES IN THE 70S.

IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ038-039-050-
052>055-057>071-232345-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN...
SPENCER...LE MARS...CHEROKEE...STORM LAKE...SIOUX CITY...
IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...DE SMET...ARLINGTON...LAKE PRESTON...
GREGORY...BURKE...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...
HOWARD...MADISON...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER...
PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...
PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...
MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
1032 AM CDT MON JUL 23 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES NEAR 100 DEGREES ARE 
  EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY. NIGHTTIME 
  WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL INTO THE 
  70S. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
060 
WWUS73 KFSD 232010
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
310 PM CDT MON JUL 23 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE PEAK HEAT INDEX VALUES 100 TO 105 DEGREES
THROUGH TUESDAY EVENING ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST
NEBRASKA AND NORTHWEST IOWA. VERY LITTLE RELIEF IS EXPECTED AT
NIGHT WITH LOW TEMPERATURES IN THE 70S.

IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ038-039-050-
052>055-057>071-240415-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN...
SPENCER...LE MARS...CHEROKEE...STORM LAKE...SIOUX CITY...
IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...DE SMET...ARLINGTON...LAKE PRESTON...
GREGORY...BURKE...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...
HOWARD...MADISON...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER...
PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...
PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...
MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
310 PM CDT MON JUL 23 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 105 DEGREES
  ARE EXPECTED DURING THE DAYLIGHT HOURS THROUGH TUESDAY.
  NIGHTTIME WILL BRING LITTLE RELIEF...AS TEMPERATURES ONLY FALL
  INTO THE 70S.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
163 
WWUS73 KFSD 240847
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
347 AM CDT TUE JUL 24 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE PEAK HEAT INDEX VALUES 100 TO 110 DEGREES LATE
THIS MORNING THROUGH THE EVENING HOURS ACROSS SOUTHEAST SOUTH
DAKOTA...NORTHEAST NEBRASKA AND NORTHWEST IOWA. SLIGHTLY COOLER
TEMPERATURES ARE EXPECTED TO RETURN ON WEDNESDAY.

IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ038-039-050-
052>055-057>071-241700-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN...
SPENCER...LE MARS...CHEROKEE...STORM LAKE...SIOUX CITY...
IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...DE SMET...ARLINGTON...LAKE PRESTON...
GREGORY...BURKE...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...
HOWARD...MADISON...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER...
PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...
PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...
MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
347 AM CDT TUE JUL 24 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 110 DEGREES ARE
  EXPECTED LATE THIS MORNING THROUGH THE EARLY EVENING HOURS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
885 
WWUS73 KFSD 241144
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
644 AM CDT TUE JUL 24 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE PEAK HEAT INDEX VALUES 100 TO 110 DEGREES LATE
THIS MORNING THROUGH THE EVENING HOURS ACROSS SOUTHEAST SOUTH
DAKOTA...NORTHEAST NEBRASKA AND NORTHWEST IOWA. SLIGHTLY COOLER
TEMPERATURES ARE EXPECTED TO RETURN ON WEDNESDAY.

IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ038-039-050-
052>055-057>071-241945-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN...
SPENCER...LE MARS...CHEROKEE...STORM LAKE...SIOUX CITY...
IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...DE SMET...ARLINGTON...LAKE PRESTON...
GREGORY...BURKE...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...
HOWARD...MADISON...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER...
PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...
PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...
MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
644 AM CDT TUE JUL 24 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 110 DEGREES 
  ARE EXPECTED LATE THIS MORNING THROUGH THE EARLY EVENING 
  HOURS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME
OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO 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. CHECK UP ON
RELATIVES AND NEIGHBORS...AND DO NOT LEAVE CHILDREN OR PETS
UNATTENDED IN VEHICLES.

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.

&&

$$
120 
WWUS73 KFSD 241517
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1017 AM CDT TUE JUL 24 2012

.HOT AFTERNOON AND EVENING TEMPERATURES WILL COMBINE WITH HIGH
HUMIDITY TO CREATE PEAK HEAT INDEX VALUES 100 TO 110 DEGREES LATE
THIS MORNING THROUGH THE EVENING HOURS ACROSS SOUTHEAST SOUTH
DAKOTA...NORTHEAST NEBRASKA AND NORTHWEST IOWA. SLIGHTLY COOLER
TEMPERATURES ARE EXPECTED TO RETURN ON WEDNESDAY.

IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ038-039-050-
052>055-057>071-242330-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN...
SPENCER...LE MARS...CHEROKEE...STORM LAKE...SIOUX CITY...
IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...DE SMET...ARLINGTON...LAKE PRESTON...
GREGORY...BURKE...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...
HOWARD...MADISON...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER...
PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...
PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...
MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
1017 AM CDT TUE JUL 24 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 110 DEGREES ARE
  EXPECTED THIS AFTERNOON AND EARLY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS WHEN POSSIBLE...RESCHEDULE
STRENUOUS ACTIVITIES TO 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. CHECK UP ON RELATIVES AND NEIGHBORS...AND DO NOT LEAVE
CHILDREN OR PETS UNATTENDED IN VEHICLES.

&&

$$
405 
WWUS73 KFSD 242031
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
331 PM CDT TUE JUL 24 2012

.HOT TEMPERATURES WILL COMBINE WITH HIGH HUMIDITY TO CREATE PEAK
HEAT INDEX VALUES 100 TO 110 DEGREES THE REST OF THIS AFTERNOON
INTO EARLY EVENING. ACROSS SOUTHEAST SOUTH DAKOTA...NORTHEAST
NEBRASKA AND NORTHWEST IOWA. SLIGHTLY COOLER TEMPERATURES ARE
EXPECTED TO RETURN ON WEDNESDAY.

IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ038-039-050-
052>055-057>071-250100-
/O.CON.KFSD.HT.Y.0006.000000T0000Z-120725T0100Z/
LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-BEADLE-KINGSBURY-GREGORY-
JERAULD-SANBORN-MINER-LAKE-BRULE-AURORA-DAVISON-HANSON-MCCOOK-
MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-LINCOLN-BON HOMME-
YANKTON-UNION-
INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD...
LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK...
ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN...
SPENCER...LE MARS...CHEROKEE...STORM LAKE...SIOUX CITY...
IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD...PONCA...ALLEN...
SOUTH SIOUX CITY...HURON...DE SMET...ARLINGTON...LAKE PRESTON...
GREGORY...BURKE...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...
HOWARD...MADISON...CHAMBERLAIN...KIMBALL...PLANKINTON...
WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM...
CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER...
PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT...
PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE...
MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA...
HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...
YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT...
ALCESTER...JEFFERSON
331 PM CDT TUE JUL 24 2012

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

* WEATHER CONDITIONS...HEAT INDEX VALUES OF 100 TO 110 DEGREES ARE
  EXPECTED THROUGH EARLY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. TAKE EXTRA PRECAUTIONS WHEN POSSIBLE...RESCHEDULE
STRENUOUS ACTIVITIES TO 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. CHECK UP ON RELATIVES AND NEIGHBORS...AND DO NOT LEAVE
CHILDREN OR PETS UNATTENDED IN VEHICLES.

&&

$$

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 Sioux Falls, SD wrote its last area forecast discussion before this heat advisory went out at Jul 18, 12:03 PM CDT, 3 hours 51 minutes earlier.

Area forecast discussion, Jul 18, 12:03 PM CDT, 3 hours 51 minutes before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1203 PM CDT WED JUL 18 2012

.DISCUSSION.../ISSUED AT 1103 AM CDT/
CURRENTLY SEEING AN AREA OF SHOWERS AND ISOLATED THUNDERSTORMS ALONG
AND EAST OF INTERSTATE 29 ASSOCIATED WITH WHAT SEEMS TO BE A WEAK
MCV. THIS WILL CONTINUE TO TRACK EAST LATE THIS MORNING INTO EARLY
AFTERNOON WITH SCATTERED SHOWERS AND STORMS CONTINUING AHEAD OF IT.
AN OUTFLOW BOUNDARY HAS PUSHED SOUTH THROUGH MUCH OF THE EASTERN CWA
FROM MORNING CONVECTION IN NORTHERN SOUTH DAKOTA. THIS HAS
STABILIZED THE LOW LEVELS...THUS NOT EXPECTING ANY SEVERE WEATHER
WITH CONVECTION ASSOCIATED WITH THE MCV...AS MOST STORMS WILL REMAIN
ELEVATED. WILL SEE CLEARING BEHIND THE LATE MORNING CONVECTION FROM
WEST TO EAST. THIS SHOULD ALLOW US TO CLIMB INTO THE 90S MOST
PLACES. DID LOWER HIGHS A LITTLE IN SOME SPOTS...BUT OVERALL GOING
HIGHS AND HEAT ADVISORY STILL LOOKS GOOD...JUST MIGHT TAKE UNTIL A
BIT LATER THIS AFTERNOON TO REACH CRITERIA.  WILL HAVE TO WATCH FOR
POTENTIAL REDEVELOPMENT OF STORMS BEHIND THIS MORNINGS ACTIVITY AS
MLCAPE SHOULD REBOUND TO AROUND 2500 J/KG. THINK SUBSIDENCE BEHIND
THE MORNING ACTIVITY WILL LIMIT DEVELOPMENT...BUT STILL COULD SEE
SOME ISOLATED ACTIVITY LATER THIS AFTERNOON...MAINLY ACROSS
SOUTHWEST MINNESOTA AND NORTHWEST IOWA. OVERALL SEVERE THREAT SEEMS
PRETTY LIMITED WITH ANY ACTIVITY TODAY...ALTHOUGH IF SOMETHING DOES
FORM LATER THIS AFTERNOON COULD SEE SOME GUSTY WINDS. /CHENARD

&&

.AVIATION.../FOR THE 18Z TAF ISSUANCE/
MAINLY VFR CONDITIONS ARE EXPECTED THROUGH 18Z THURSDAY. CURRENTLY
SEEING SCATTERED SHOWERS AND THUNDERSTORMS EAST OF OUR TAF SITES
ACROSS PORTIONS OF SOUTHWEST MINNESOTA AND NORTHWEST IOWA. EXPECT
THESE TO CONTINUE TO PUSH EAST EARLY THIS AFTERNOON. COULD HAVE A
FEW STORMS REDEVELOP LATER THIS AFTERNOON...BUT THINK BEST CHANCE OF
THIS IS AGAIN EAST OF THE TAF SITES. BOTH MET AND MAV WANT TO
DEVELOP SOME FOG TOMORROW MORNING. GIVEN RAINFALL THIS MORNING
AROUND KHON AND KFSD...CAN NOT COMPLETELY RULE OUT SOME MVFR FOG.
HOWEVER CONFIDENCE IS TOO LOW AT THIS TIME TO MENTION IN THE TAFS.
/CHENARD

&&

.PREVIOUS DISCUSSION.../ISSUED AT 407 AM CDT/
A FRONTAL BOUNDARY IS PRESENTLY EXTENDING EASTWARD FROM AN AREA OF
LOW PRESSURE LOCATED OVER THE SOUTHERN JAMES RIVER VALLEY EARLY THIS
MORNING...WITH A SECONDARY BOUNDARY LOCATED SOUTHWESTWARD OF THE
SURFACE LOW INTO NORTHWESTERN NEBRASKA. CONVECTION WHICH DEVELOPED
OVERNIGHT THROUGH SOUTH CENTRAL SOUTH DAKOTA IN ASSOCIATION WITH A
SHORTWAVE TRACKING ACROSS THE AREA HAS NOW LIFTED INTO OUR FAR
NORTHWESTERN ZONES...WITH ADDITIONAL DEVELOPMENT OCCURRING THROUGH
THE SOUTHERN JAMES RIVER VALLEY AT THIS TIME. CONVECTION HAS SEEMED
TO BE ALIGNED WITH THE BETTER LOW LEVEL THETA E
ADVECTION/INSTABILITY AXIS...AND THIS IS EXPECTED TO CONTINUE TO
LIFT TO THE NORTH THROUGH THE MORNING. THE LOW PRESSURE AND
ASSOCIATED BOUNDARIES ARE EXPECTED TO TRANSLATE SLOWLY TO THE EAST
TODAY...AND AFTER A BREAK IN CONVECTION IN THE MORNING MAY SEE
ADDITIONAL DEVELOPMENT IN OUR EAST THIS AFTERNOON...WITH THE BETTER
CHANCES IN OUR NORTHEAST WITH ANOTHER SHORTWAVE CENTERED OVER
WESTERN MINNESOTA DROPPING SOUTHWARD...WITH A VORT TAIL EXTENDING
THROUGH EASTERN SOUTH DAKOTA. WHILE NOT EXPECTING ANY WIDESPREAD
SEVERE WEATHER...CANNOT NOT RULE OUT AN ISOLATED SEVERE STORM IN OUR
EAST THIS AFTERNOON WITH PLENTY OF INSTABILITY...THOUGH SHEAR IS NOT
THAT GREAT...GENERALLY AROUND 20 KTS.

WHILE THERMAL PROFILES COOL JUST A BIT TODAY...IT WILL STILL BE
CONSIDERED HOT WITH HIGHS AROUND 90 NORTHEAST TO UPPER 90S THROUGH
THE MISSOURI RIVER CORRIDOR...AND WITH DEWPOINTS INTO THE LOW 70S
OVER A GOOD BIT OF THE AREA IT WILL FEEL JUST AS MISERABLE AS
YESTERDAY. DID EXPAND OUR HEAT ADVISORY A LITTLE FARTHER TO THE
NORTH AND WEST WHERE AFTERNOON HEAT INDICES WILL HOVER JUST ABOVE
100 DEGREES. ANY THUNDERSTORMS THAT DEVELOP THIS AFTERNOON ARE
EXPECTED TO PULL OFF TO THE EAST BY THIS EVENING AS THE SHORTWAVE
ALSO TRACKS TO THE EAST OF OUR AREA. SKIES WILL CLEAR OUT LATER
TONIGHT AND WINDS WILL DROP OFF...WITH LOWS IN THE UPPER 60S TO
LOWER 70S.

WITH UPPER LEVEL RIDGING BUILDING INTO THE REGION THROUGH THE
REMAINDER OF THE WEEK...THURSDAY AND FRIDAY LOOK TO REMAIN DRY WITH
WARMING THERMAL PROFILES. THIS WILL PLAY OUT TO HIGHS IN THE LOWER
90S IN THE FAR EAST TO AROUND 100 IN THE WEST...AND LOWS IN THE
UPPER 60S TO LOWER 70S.

IN THE EXTENDED...SATURDAY THROUGH TUESDAY...NO REAL RELIEF IN SIGHT
WITH UPPER LEVEL RIDGING PARKED OVER THE CENTRAL PORTIONS OF THE
NATION. A COUPLE OF SHORTWAVES RIDING OVER THE RIDGE MAY BRING
ISOLATED THUNDERSTORMS TO PARTS OF OUR AREA DURING THE PERIOD...WITH
THE BETTER CHANCE LOOKING TO BE SATURDAY AND TUESDAY AT THIS
POINT...BUT AGAIN NOTHING WIDESPREAD IS ON THE HORIZON. HIGHS
THROUGH THE PERIOD WILL BE 90S TO AROUND 100...WITH LOWS IN THE
LOWER TO MID 70S.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
IA...HEAT ADVISORY FROM 1 PM THIS AFTERNOON TO 8 PM CDT THIS EVENING
     FOR IAZ001-002-012-013-020-021-031-032.

MN...NONE.
NE...HEAT ADVISORY FROM 1 PM THIS AFTERNOON TO 8 PM CDT THIS EVENING
     FOR NEZ013-014.

SD...HEAT ADVISORY FROM 1 PM THIS AFTERNOON TO 8 PM CDT THIS EVENING
     FOR SDZ050-052-053-057>071.

&&
Hazardous weather outlook, Jul 18, 11:26 AM CDT, 4 hours 28 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1126 AM CDT WED JUL 18 2012

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-191200-
AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA-
CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE-
DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON-
IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN-
LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN-
OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN-
SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON-
1126 AM CDT WED JUL 18 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS...
ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE ACROSS THE
AREA INTO EARLY THIS AFTERNOON EAST OF INTERSTATE 29. THESE
STORMS ARE NOT EXPECTED TO BE SEVERE.  ADDITIONAL THUNDERSTORMS
MAY DEVELOP THIS AFTERNOON...MAINLY FROM THE INTERSTATE 29
CORRIDOR AND EASTWARD. WHILE WIDESPREAD SEVERE WEATHER IS NOT
EXPECTED...THERE COULD BE AN ISOLATED SEVERE STORM WITH HAIL TO
THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH.

EXCESSIVE TEMPERATURES...
THE HEAT INDEX WILL REACH OR EXCEED 100 DEGREES THIS AFTERNOON
SOUTH AND WEST OF A LINE GENERALLY RUNNING FROM WESSINGTON
SPRINGS TO SIOUX FALLS TO STORM LAKE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A PROLONGED PERIOD OF MUCH ABOVE NORMAL TEMPERATURES IS EXPECTED
INTO AT LEAST THE BEGINNING OF NEXT WEEK. HEAT INDICES OF 95 TO
105 DEGREES WILL BE REACHED EACH AFTERNOON THROUGH THE PERIOD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE POSSIBLE AFTER 3 PM IN SOUTHWEST
MINNESOTA AND NORTHWEST IOWA.

&&

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.

Nearby

Heat Advisories in South Dakota, 2012Heat Advisories in Iowa, 2012Heat Advisories in Nebraska, 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.