Alert archive / Iowa / Heat Advisories in 2012
Heat Advisory 4, NWS Des Moines, IA
NWS Des Moines, IA issued this heat advisory at Jul 23, 2012, 8:50 PM CDT for 12 counties in Iowa. It was in force for 46 hr.
The area
The counties it named.
The facts
- Issued
- Jul 23, 2012, 8:50 PM CDT (01:50 UTC)
- Expired
- Jul 25, 2012, 7:03 PM CDT
- In force
- 46 hr
- Issued by
- NWS Des Moines, IA
Counties Black Hawk County, IA, Bremer County, IA, Butler County, IA, Franklin County, IA, Grundy County, IA, Hardin County, IA, Humboldt County, IA, Marshall County, IA, Pocahontas County, IA, Poweshiek County, IA, Tama County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 95 km from the middle of the area, began a volume at 01:53 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
Davenport, (KDVN), launched 00:00Z, 1.8 hours before the alert went out and 235 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.
- Mixed-layer CAPE
- 1702 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 2470 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.2
The text
As transmitted, in the capitals the NWS used until 2016.
505 WWUS73 KDMX 240150 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 850 PM CDT MON JUL 23 2012 ...TWO MORE DAYS OF HOT AND DANGEROUS CONDITIONS... .DANGEROUSLY HOT WEATHER WILL CONTINUE TO AFFECT MUCH OF CENTRAL IOWA THROUGH WEDNESDAY. A WEAK COLD FRONT WILL DROP SOUTH WEDNESDAY NIGHT AND BRING SOME RELIEF TO THE STATE BY THURSDAY. IAZ033>036-044>048-057>061-070>075-081>086-092>097-241000- /O.CON.KDMX.EH.W.0002.000000T0000Z-120726T0000Z/ SAC-CALHOUN-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS-ADAIR-MADISON-WARREN- MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR- RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...FORT DODGE... WEBSTER CITY...DENISON...CARROLL...JEFFERSON...BOONE...AMES... AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 850 PM CDT MON JUL 23 2012 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT WEDNESDAY... * TIMING...HEAT WILL PERSIST INTO WEDNESDAY EVENING BEFORE A COLD FRONT LOWERS READINGS BY THURSDAY AND FRIDAY. * TEMPERATURE...HIGHS WILL RANGE FROM THE UPPER 90S TO AROUND 105 DEGREES. SINCE DEWPOINTS ARE EXPECTED TO REMAIN IN THE 60S... HEAT INDEX READINGS LOOK TO RISE ONLY BE A FEW DEGREES HIGHER THAN THE ACTUAL TEMPERATURE...BUT ARE STILL LIKELY TO RANGE FROM 105 TO 110 DEGREES. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL CREATE A DANGEROUS SITUATION. HEAT ILLNESSES ARE LIKELY IF SIGNIFICANT PRECAUTIONS ARE NOT OBSERVED. THE PROLONGED NATURE OF THE HEAT...BOTH DAY AND NIGHT...WILL ACCUMULATE OVER TIME ESPECIALLY FOR THOSE WITHOUT AIR CONDITIONING. PROLONGED OUTDOOR ACTIVITY COULD CAUSE HEAT EXHAUSTION. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER... STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN... AND CHECK UP ON RELATIVES...NEIGHBORS...PETS...AND LIVESTOCK. && $$ IAZ023>028-037>039-049-050-062-241000- /O.NEW.KDMX.HT.Y.0004.120724T0150Z-120726T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY- BLACK HAWK-MARSHALL-TAMA-POWESHIEK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...ELDORA...GRUNDY CENTER...WATERLOO... MARSHALLTOWN...TOLEDO...GRINNELL 850 PM CDT MON JUL 23 2012 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT WEDNESDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A HEAT ADVISORY...WHICH IS IN EFFECT UNTIL 7 PM CDT WEDNESDAY. * TIMING...HEAT WHICH HAS BEEN BUILDING FOR TWO DAYS WILL PERSIST INTO WEDNESDAY EVENING. * TEMPERATURE...HIGHS WILL RANGE FROM THE MIDDLE AND UPPER 90S TO AROUND 103 DEGREES. HEAT INDEX READINGS LOOK TO RISE INTO THE 100 TO 108 DEGREE RANGE. CLOUDS AND ISOLATED SHOWERS COULD PROVIDE MOMENTARY RELIEF DURING THE MORNING HOURS...BUT TEMPERATURES ARE EXPECTED TO CLIMB RAPIDLY DURING THE AFTERNOON. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL INCREASE THE LIKELIHOOD OF HEAT ILLNESSES. HOT TEMPERATURES...BOTH DAY AND NIGHT...WILL ACCUMULATE OVER TIME ESPECIALLY FOR THOSE WITHOUT AIR CONDITIONING. PROLONGED OUTDOOR ACTIVITY COULD BECOME DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. && $$ JUNGBLUTH
8 follow-up statements
142 WWUS73 KDMX 240854 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 354 AM CDT TUE JUL 24 2012 ...TWO MORE DAYS OF DANGEROUSLY HOT WEATHER... .SWELTERING HEAT WILL CONTINUE TO AFFECT MUCH OF CENTRAL IOWA THROUGH WEDNESDAY. A WEAK COLD FRONT WILL DROP SOUTH WEDNESDAY NIGHT AND BRING SOME RELIEF TO THE STATE BY THURSDAY. IAZ033>036-044>048-057>061-070>075-081>086-092>097-241700- /O.CON.KDMX.EH.W.0002.000000T0000Z-120726T0000Z/ SAC-CALHOUN-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS-ADAIR-MADISON-WARREN- MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR- RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...FORT DODGE... WEBSTER CITY...DENISON...CARROLL...JEFFERSON...BOONE...AMES... AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 354 AM CDT TUE JUL 24 2012 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT WEDNESDAY... * TIMING...HEAT WILL PERSIST INTO WEDNESDAY EVENING BEFORE A COLD FRONT LOWERS TEMPERATURES BY WEDNESDAY NIGHT AND THURSDAY. * TEMPERATURE...HIGHS WILL RANGE FROM THE UPPER 90S TO AROUND 105 DEGREES. SINCE DEWPOINTS ARE EXPECTED TO REMAIN IN THE 60S...HEAT INDEX READINGS LOOK TO RISE ONLY BE A FEW DEGREES HIGHER THAN THE ACTUAL TEMPERATURE...BUT ARE STILL LIKELY TO RANGE FROM 105 TO 110 DEGREES. AS THE FRONT APPROACHES LATE ON WEDNESDAY DEWPOINTS WILL INCREASE AND SOME AREAS COULD SEE HEAT INDEX VALUES IN EXCESS OF 110 DEGREES. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL CREATE A DANGEROUS SITUATION. HEAT ILLNESSES ARE LIKELY IF SIGNIFICANT PRECAUTIONS ARE NOT OBSERVED. THE PROLONGED NATURE OF THE HEAT...BOTH DAY AND NIGHT...WILL ACCUMULATE OVER TIME ESPECIALLY FOR THOSE WITHOUT AIR CONDITIONING. OUTDOOR ACTIVITY COULD ALSO CAUSE HEAT EXHAUSTION. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER... STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN... AND CHECK UP ON RELATIVES...NEIGHBORS...PETS...AND LIVESTOCK. && $$ IAZ023>028-037>039-049-050-062-241700- /O.CON.KDMX.HT.Y.0004.000000T0000Z-120726T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY- BLACK HAWK-MARSHALL-TAMA-POWESHIEK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...ELDORA...GRUNDY CENTER...WATERLOO... MARSHALLTOWN...TOLEDO...GRINNELL 354 AM CDT TUE JUL 24 2012 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT WEDNESDAY... * TIMING...HEAT WHICH HAS BEEN BUILDING FOR SEVERAL DAYS WILL CONTINUE TO INTENSIFY AND PERSIST INTO WEDNESDAY EVENING. * TEMPERATURE...HIGHS WILL RANGE FROM THE MIDDLE AND UPPER 90S INTO THE LOWER 100S. HEAT INDEX READINGS LOOK TO RISE INTO THE 103 TO 108 DEGREE RANGE IN THE AFTERNOON AND EVENING. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL INCREASE THE LIKELIHOOD OF HEAT ILLNESSES. HOT TEMPERATURES...BOTH DAY AND NIGHT...WILL CAUSE EFFECTS TO ACCUMULATE OVER TIME ESPECIALLY FOR THOSE WITHOUT AIR CONDITIONING. PROLONGED OUTDOOR ACTIVITY COULD BECOME DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. && $$
602 WWUS73 KDMX 241506 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1006 AM CDT TUE JUL 24 2012 ...TWO MORE DAYS OF DANGEROUSLY HOT WEATHER... .SWELTERING HEAT WILL CONTINUE TO AFFECT MUCH OF CENTRAL IOWA THROUGH WEDNESDAY. A WEAK COLD FRONT WILL DROP SOUTH WEDNESDAY NIGHT AND BRING SOME RELIEF TO THE STATE BY THURSDAY. IAZ033>036-044>048-057>061-070>075-081>086-092>097-242315- /O.CON.KDMX.EH.W.0002.000000T0000Z-120726T0000Z/ SAC-CALHOUN-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS-ADAIR-MADISON-WARREN- MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR- RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...FORT DODGE... WEBSTER CITY...DENISON...CARROLL...JEFFERSON...BOONE...AMES... AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 1006 AM CDT TUE JUL 24 2012 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT WEDNESDAY... * TIMING...HEAT WILL PERSIST INTO WEDNESDAY EVENING BEFORE A COLD FRONT LOWERS TEMPERATURES BY WEDNESDAY NIGHT AND THURSDAY. * TEMPERATURE...HIGHS WILL RANGE FROM THE UPPER 90S TO AROUND 105 DEGREES. SINCE DEWPOINTS ARE EXPECTED TO REMAIN IN THE 60S...HEAT INDEX READINGS LOOK TO RISE ONLY BE A FEW DEGREES HIGHER THAN THE ACTUAL TEMPERATURE...BUT ARE STILL LIKELY TO RANGE FROM 105 TO 110 DEGREES. AS THE FRONT APPROACHES LATE ON WEDNESDAY DEWPOINTS WILL INCREASE AND SOME AREAS COULD SEE HEAT INDEX VALUES IN EXCESS OF 110 DEGREES. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL CREATE A DANGEROUS SITUATION. HEAT ILLNESSES ARE LIKELY IF SIGNIFICANT PRECAUTIONS ARE NOT OBSERVED. THE PROLONGED NATURE OF THE HEAT...BOTH DAY AND NIGHT...WILL ACCUMULATE OVER TIME ESPECIALLY FOR THOSE WITHOUT AIR CONDITIONING. OUTDOOR ACTIVITY COULD ALSO CAUSE HEAT EXHAUSTION. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER... STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN... AND CHECK UP ON RELATIVES...NEIGHBORS...PETS...AND LIVESTOCK. && $$ IAZ023>028-037>039-049-050-062-242315- /O.CON.KDMX.HT.Y.0004.000000T0000Z-120726T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY- BLACK HAWK-MARSHALL-TAMA-POWESHIEK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...ELDORA...GRUNDY CENTER...WATERLOO... MARSHALLTOWN...TOLEDO...GRINNELL 1006 AM CDT TUE JUL 24 2012 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT WEDNESDAY... * TIMING...HEAT WHICH HAS BEEN BUILDING FOR SEVERAL DAYS WILL CONTINUE TO INTENSIFY AND PERSIST INTO WEDNESDAY EVENING. * TEMPERATURE...A THUNDERSTORM OUTFLOW BOUNDARY MOVED THROUGH THE AREA THIS MORNING. AS A RESULT...THE WINDS SHIFT TO FROM THE EAST. THE WINDS WILL SHIFT BACK TO THE SOUTH TODAY AND IT WILL BECOME HOT THIS AFTERNOON. HIGHS WILL RANGE FROM THE MIDDLE AND UPPER 90S. HEAT INDEX READINGS LOOK TO RISE INTO THE 100 TO 105 DEGREE RANGE IN THE AFTERNOON AND EVENING. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL INCREASE THE LIKELIHOOD OF HEAT ILLNESSES. HOT TEMPERATURES...BOTH DAY AND NIGHT...WILL CAUSE EFFECTS TO ACCUMULATE OVER TIME ESPECIALLY FOR THOSE WITHOUT AIR CONDITIONING. PROLONGED OUTDOOR ACTIVITY COULD BECOME DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. && $$
558 WWUS73 KDMX 242035 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 335 PM CDT TUE JUL 24 2012 ...ONE MORE DAY OF HOT WEATHER... .WEDNESDAY SHOULD BE AS HOT AS MONDAY ACROSS CENTRAL IOWA. A COLD FRONT WILL DROP SOUTH WEDNESDAY NIGHT AND BRING RELIEF TO THE STATE BY THURSDAY. IAZ033>036-044>048-057>061-070>075-081>086-092>097-250445- /O.CON.KDMX.EH.W.0002.000000T0000Z-120726T0000Z/ SAC-CALHOUN-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS-ADAIR-MADISON-WARREN- MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR- RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...FORT DODGE... WEBSTER CITY...DENISON...CARROLL...JEFFERSON...BOONE...AMES... AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 335 PM CDT TUE JUL 24 2012 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT WEDNESDAY... * TIMING...HEAT WILL PERSIST INTO WEDNESDAY EVENING BEFORE A COLD FRONT LOWERS TEMPERATURES BY WEDNESDAY NIGHT AND THURSDAY. * TEMPERATURE...HIGHS WEDNESDAY WILL RANGE FROM THE UPPER 90S TO AROUND 105 DEGREES. SINCE DEWPOINTS ARE EXPECTED TO REMAIN IN THE 60S...HEAT INDEX READINGS LOOK TO RISE ONLY BE A FEW DEGREES HIGHER THAN THE ACTUAL TEMPERATURE...BUT ARE STILL LIKELY TO RANGE FROM 105 TO 110 DEGREES. AS THE FRONT APPROACHES LATE ON WEDNESDAY DEWPOINTS WILL INCREASE AND SOME AREAS COULD SEE HEAT INDEX VALUES IN EXCESS OF 110 DEGREES. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL CREATE A DANGEROUS SITUATION. HEAT ILLNESSES ARE LIKELY IF SIGNIFICANT PRECAUTIONS ARE NOT OBSERVED. THE PROLONGED NATURE OF THE HEAT...BOTH DAY AND NIGHT...WILL ACCUMULATE OVER TIME ESPECIALLY FOR THOSE WITHOUT AIR CONDITIONING. OUTDOOR ACTIVITY COULD ALSO CAUSE HEAT EXHAUSTION. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER... STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN... AND CHECK UP ON RELATIVES...NEIGHBORS...PETS...AND LIVESTOCK. && $$ IAZ023>028-037>039-049-050-062-250445- /O.CON.KDMX.HT.Y.0004.000000T0000Z-120726T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY- BLACK HAWK-MARSHALL-TAMA-POWESHIEK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...ELDORA...GRUNDY CENTER...WATERLOO... MARSHALLTOWN...TOLEDO...GRINNELL 335 PM CDT TUE JUL 24 2012 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT WEDNESDAY... * TIMING...HEAT WILL RETURN ON WEDNESDAY BEFORE A COLD FRONT PROVIDES RELIEF WEDNESDAY NIGHT AND THURSDAY. * TEMPERATURE...AFTER OVERNIGHT LOWS IN THE MIDDLE 70S...HIGHS WILL RANGE FROM THE UPPER 90S TO 103 ON WEDNESDAY. HEAT INDEX READINGS LOOK TO RISE INTO THE 100 TO 105 DEGREE RANGE BY THE AFTERNOON. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL INCREASE THE LIKELIHOOD OF HEAT ILLNESSES. HOT TEMPERATURES...BOTH DAY AND NIGHT...WILL CAUSE EFFECTS TO ACCUMULATE OVER TIME ESPECIALLY FOR THOSE WITHOUT AIR CONDITIONING. PROLONGED OUTDOOR ACTIVITY COULD BECOME DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. && $$
570 WWUS73 KDMX 250159 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 859 PM CDT TUE JUL 24 2012 ...ONE MORE DAY OF HOT WEATHER... .WEDNESDAY SHOULD BE AS HOT AS MONDAY ACROSS CENTRAL IOWA. A COLD FRONT WILL DROP SOUTH LATE IN THE DAY WEDNESDAY AND WEDNESDAY NIGHT AND BRING RELIEF TO THE STATE THURSDAY. IAZ033>036-044>048-057>061-070>075-081>086-092>097-251000- /O.CON.KDMX.EH.W.0002.000000T0000Z-120726T0000Z/ SAC-CALHOUN-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS-ADAIR-MADISON-WARREN- MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR- RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...FORT DODGE... WEBSTER CITY...DENISON...CARROLL...JEFFERSON...BOONE...AMES... AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 859 PM CDT TUE JUL 24 2012 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT WEDNESDAY... * TIMING...HEAT WILL PERSIST INTO WEDNESDAY EVENING BEFORE A COLD FRONT LOWERS TEMPERATURES THURSDAY. * TEMPERATURE...HIGHS WEDNESDAY WILL RANGE FROM THE UPPER 90S TO AROUND 105 DEGREES. SINCE DEWPOINTS ARE EXPECTED TO REMAIN IN THE 60S...HEAT INDEX READINGS LOOK TO RISE ONLY BE A FEW DEGREES HIGHER THAN THE ACTUAL TEMPERATURE...BUT ARE STILL LIKELY TO RANGE FROM 105 TO 110 DEGREES. AS THE FRONT APPROACHES LATE ON WEDNESDAY DEWPOINTS WILL INCREASE AND SOME AREAS COULD SEE HEAT INDEX VALUES IN EXCESS OF 110 DEGREES. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL CREATE A DANGEROUS SITUATION. HEAT ILLNESSES ARE LIKELY IF SIGNIFICANT PRECAUTIONS ARE NOT OBSERVED. THE PROLONGED NATURE OF THE HEAT...BOTH DAY AND NIGHT...WILL ACCUMULATE OVER TIME ESPECIALLY FOR THOSE WITHOUT AIR CONDITIONING. OUTDOOR ACTIVITY COULD ALSO CAUSE HEAT EXHAUSTION. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER... STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN... AND CHECK UP ON RELATIVES...NEIGHBORS...PETS...AND LIVESTOCK. && $$ IAZ023>028-037>039-049-050-062-251000- /O.CON.KDMX.HT.Y.0004.000000T0000Z-120726T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY- BLACK HAWK-MARSHALL-TAMA-POWESHIEK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...ELDORA...GRUNDY CENTER...WATERLOO... MARSHALLTOWN...TOLEDO...GRINNELL 859 PM CDT TUE JUL 24 2012 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT WEDNESDAY... * TIMING...HEAT WILL RETURN ON WEDNESDAY BEFORE A COLD FRONT PROVIDES RELIEF WEDNESDAY NIGHT AND THURSDAY. * TEMPERATURE...AFTER OVERNIGHT LOWS IN THE MIDDLE 70S...HIGHS WILL RANGE FROM THE UPPER 90S TO 103 ON WEDNESDAY. HEAT INDEX READINGS LOOK TO RISE INTO THE 100 TO 105 DEGREE RANGE BY THE AFTERNOON. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL INCREASE THE LIKELIHOOD OF HEAT ILLNESSES. HOT TEMPERATURES...BOTH DAY AND NIGHT...WILL CAUSE EFFECTS TO ACCUMULATE OVER TIME ESPECIALLY FOR THOSE WITHOUT AIR CONDITIONING. PROLONGED OUTDOOR ACTIVITY COULD BECOME DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. && $$ FAB
882 WWUS73 KDMX 250840 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 340 AM CDT WED JUL 25 2012 ...HOT WEATHER CONTINUES WEDNESDAY... .TEMPERATURES WEDNESDAY WILL REMAIN HOT...WITH HIGH TEMPERATURES NEAR THOSE OF MONDAY ACROSS CENTRAL IOWA. A COLD FRONT WILL DROP SOUTH LATE IN THE DAY WEDNESDAY AND WEDNESDAY NIGHT AND BRING RELIEF TO THE STATE THURSDAY. IAZ033>036-044>048-057>061-070>075-081>086-092>097-251645- /O.CON.KDMX.EH.W.0002.000000T0000Z-120726T0000Z/ SAC-CALHOUN-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS-ADAIR-MADISON-WARREN- MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR- RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...FORT DODGE... WEBSTER CITY...DENISON...CARROLL...JEFFERSON...BOONE...AMES... AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 340 AM CDT WED JUL 25 2012 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * TIMING...HEAT WILL PERSIST INTO WEDNESDAY EVENING BEFORE A COLD FRONT BRINGS COOLER TEMPERATURES FOR THURSDAY. * TEMPERATURE...HIGHS WEDNESDAY WILL RANGE FROM THE UPPER 90S TO AROUND 105 DEGREES. WITH DEWPOINTS EXPECTED TO REMAIN IN THE 60S...HEAT INDEX READINGS LOOK TO RISE ONLY BE A FEW DEGREES HIGHER THAN THE ACTUAL TEMPERATURE...BUT ARE STILL LIKELY TO RANGE FROM 105 TO 110 DEGREES. AS THE FRONT APPROACHES LATE ON WEDNESDAY DEWPOINTS WILL INCREASE AND SOME AREAS COULD SEE HEAT INDEX VALUES IN EXCESS OF 110 DEGREES. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL CREATE A DANGEROUS SITUATION. HEAT ILLNESSES ARE LIKELY IF SIGNIFICANT PRECAUTIONS ARE NOT OBSERVED. THE PROLONGED NATURE OF THE HEAT...BOTH DAY AND NIGHT...WILL ACCUMULATE OVER TIME ESPECIALLY FOR THOSE WITHOUT AIR CONDITIONING. OUTDOOR ACTIVITY COULD ALSO CAUSE HEAT EXHAUSTION. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER... STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN... AND CHECK UP ON RELATIVES...NEIGHBORS...PETS...AND LIVESTOCK. && $$ IAZ023>028-037>039-049-050-062-251645- /O.CON.KDMX.HT.Y.0004.000000T0000Z-120726T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY- BLACK HAWK-MARSHALL-TAMA-POWESHIEK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...ELDORA...GRUNDY CENTER...WATERLOO... MARSHALLTOWN...TOLEDO...GRINNELL 340 AM CDT WED JUL 25 2012 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * TIMING...HEAT WILL RETURN ON WEDNESDAY BEFORE A COLD FRONT PROVIDES RELIEF WEDNESDAY NIGHT AND THURSDAY. * TEMPERATURE...AFTER OVERNIGHT LOWS IN THE MIDDLE 70S...HIGHS WILL RANGE FROM THE UPPER 90S TO 103 ON WEDNESDAY. HEAT INDEX READINGS LOOK TO RISE INTO THE 100 TO 105 DEGREE RANGE BY THE AFTERNOON. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL INCREASE THE LIKELIHOOD OF HEAT ILLNESSES. HOT TEMPERATURES...BOTH DAY AND NIGHT...WILL CAUSE EFFECTS TO ACCUMULATE OVER TIME ESPECIALLY FOR THOSE WITHOUT AIR CONDITIONING. PROLONGED OUTDOOR ACTIVITY COULD BECOME DANGEROUS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. && $$ AWB
204 WWUS73 KDMX 251546 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1046 AM CDT WED JUL 25 2012 ...HOT WEATHER CONTINUES TODAY... .TEMPERATURES LOOK TO RISE INTO THE TRIPLE DIGITS BY THIS AFTERNOON BEFORE A COLD FRONT SWEEPS ACROSS THE STATE THIS EVENING TO SUPPLY SOME RELIEF BY THURSDAY. IAZ033>036-044>048-057>061-070>075-081>086-092>097-260000- /O.CON.KDMX.EH.W.0002.000000T0000Z-120726T0000Z/ SAC-CALHOUN-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS-ADAIR-MADISON-WARREN- MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR- RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...FORT DODGE... WEBSTER CITY...DENISON...CARROLL...JEFFERSON...BOONE...AMES... AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 1046 AM CDT WED JUL 25 2012 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * TIMING...HEAT WILL PERSIST THROUGH THIS EVENING BEFORE A COLD FRONT BRINGS SLIGHTLY COOLER TEMPERATURES FOR THURSDAY. * TEMPERATURE...HIGHS TODAY ARE FORECAST TO RISE INTO THE TRIPLE DIGITS...GENERALLY RANGING FROM AROUND 100 TO NEAR 107 DEGREES. DEW POINTS WILL RISE INTO THE UPPER 60S TO AROUND 70 THIS AFTERNOON CAUSING THE HEAT INDEX READINGS TO RISE NEAR 110 TO 115 DEGREES. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL CREATE A DANGEROUS SITUATION AND COULD LEAD TO POTENTIAL HEAT ILLNESSES IF SIGNIFICANT PRECAUTIONS ARE NOT OBSERVED. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER... STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES...NEIGHBORS...PETS...AND LIVESTOCK. && $$ IAZ023>028-037>039-049-050-062-260000- /O.CON.KDMX.HT.Y.0004.000000T0000Z-120726T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY- BLACK HAWK-MARSHALL-TAMA-POWESHIEK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...ELDORA...GRUNDY CENTER...WATERLOO... MARSHALLTOWN...TOLEDO...GRINNELL 1046 AM CDT WED JUL 25 2012 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * TIMING...HEAT WILL PERSIST THROUGH THIS EVENING BEFORE A COLD FRONT BRINGS SLIGHTLY COOLER TEMPERATURES BY THURSDAY. * TEMPERATURE...HIGHS ARE FORECAST TO RISE INTO THE UPPER 90S TO NEAR 101 DEGREES BY THIS AFTERNOON. DEW POINTS ARE EXPECTED TO RISE NEAR 70 AND WILL LEAD TO HEAT INDEX READINGS OF 102 TO 108 DEGREES DURING THE AFTERNOON HOURS. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL CREATE A DANGEROUS SITUATION AND COULD LEAD TO POTENTIAL HEAT ILLNESSES IF SIGNIFICANT PRECAUTIONS ARE NOT OBSERVED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. && $$ PODRAZIK
348 WWUS73 KDMX 252107 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 407 PM CDT WED JUL 25 2012 ...HOT WEATHER CONTINUES THROUGH THIS EVENING... .TEMPERATURES WILL RANGE IN THE TRIPLE DIGITS THOUGH AROUND SUNSET BEFORE A COLD FRONT MOVES ACROSS THE STATE AND BRINGS SOME RELIEF BY THURSDAY. IAZ033>036-044>048-057>061-070>075-081>086-092>097-260000- /O.CON.KDMX.EH.W.0002.000000T0000Z-120726T0000Z/ SAC-CALHOUN-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS-ADAIR-MADISON-WARREN- MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR- RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...FORT DODGE... WEBSTER CITY...DENISON...CARROLL...JEFFERSON...BOONE...AMES... AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 407 PM CDT WED JUL 25 2012 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * TIMING...THE INTENSE HEAT WILL PERSIST THROUGH THIS EVENING BEFORE A COLD FRONT BRINGS SLIGHTLY COOLER TEMPERATURES FOR THURSDAY. * TEMPERATURE...LOOK FOR TEMPERATURES TO RANGE IN THE TRIPLE DIGITS THROUGH AROUND SUNSET...GENERALLY AROUND 100 TO NEAR 105 DEGREES. DEW POINTS WILL REMAIN IN THE UPPER 60S TO AROUND 70 AND LEAD TO HEAT INDEX READINGS AROUND 108 TO 112 DEGREES THROUGH EARLY THIS EVENING. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL CREATE A DANGEROUS SITUATION AND COULD LEAD TO POTENTIAL HEAT ILLNESSES IF SIGNIFICANT PRECAUTIONS ARE NOT OBSERVED. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER... STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES...NEIGHBORS...PETS...AND LIVESTOCK. && $$ IAZ023>028-037>039-049-050-062-260000- /O.CON.KDMX.HT.Y.0004.000000T0000Z-120726T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY- BLACK HAWK-MARSHALL-TAMA-POWESHIEK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...ELDORA...GRUNDY CENTER...WATERLOO... MARSHALLTOWN...TOLEDO...GRINNELL 407 PM CDT WED JUL 25 2012 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * TIMING...HEAT WILL PERSIST THROUGH THIS EVENING BEFORE A COLD FRONT BRINGS SLIGHTLY COOLER TEMPERATURES BY THURSDAY. * TEMPERATURE...TEMPERATURES WILL AROUND 100 DEGREES THROUGH THE EARLY EVENING WITH DEW POINTS RANGING NEAR 70 WILL CAUSE HEAT INDEX READINGS OF 102 TO 108 DEGREES LATE THIS AFTERNOON. * IMPACTS...THE COMBINATION OF PROLONGED HOT TEMPERATURES AND SOME HUMIDITY WILL CREATE A DANGEROUS SITUATION AND COULD LEAD TO POTENTIAL HEAT ILLNESSES IF SIGNIFICANT PRECAUTIONS ARE NOT OBSERVED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. && $$ KLP
571 WWUS73 KDMX 260003 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 703 PM CDT WED JUL 25 2012 ...EXCESSIVE HEAT WARNING AND HEAT ADVISORY WILL BE ALLOWED TO EXPIRE... .SCATTERED THUNDERSTORMS ALONG AND BEHIND A WEAK COLD FRONT WILL BRING AN END TO THE OPPRESSIVE HEAT THIS EVENING. THE COLD FRONT IS SLOW MOVING SO IT MAY TAKE MUCH OF THE EVENING TO PROGRESS THROUGH CENTRAL IOWA. IAZ033>036-044>048-057>061-070>075-081>086-092>097-260115- /O.CAN.KDMX.EH.W.0002.000000T0000Z-120726T0000Z/ SAC-CALHOUN-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS-ADAIR-MADISON-WARREN- MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR- RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...FORT DODGE... WEBSTER CITY...DENISON...CARROLL...JEFFERSON...BOONE...AMES... AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 703 PM CDT WED JUL 25 2012 ...EXCESSIVE HEAT WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE EXCESSIVE HEAT WARNING. A COLD FRONT WILL MOVE THROUGH THE AREA IN THE NEXT FEW HOURS ENDING THE HOT TEMPERATURES. UNTIL THE FRONT DOES MOVE THROUGH IT WILL BE WARM AND A LITTLE HUMID SO AVOID STRENUOUS ACTIVITY YET THIS EVENING. $$ IAZ023>028-037>039-049-050-062-260115- /O.CAN.KDMX.HT.Y.0004.000000T0000Z-120726T0000Z/ POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY- BLACK HAWK-MARSHALL-TAMA-POWESHIEK- INCLUDING THE CITIES OF...POCAHONTAS...HUMBOLDT...CLARION... HAMPTON...ALLISON...WAVERLY...ELDORA...GRUNDY CENTER...WATERLOO... MARSHALLTOWN...TOLEDO...GRINNELL 703 PM CDT WED JUL 25 2012 ...HEAT ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE HEAT ADVISORY. A COLD FRONT WILL MOVE THROUGH THE AREA IN THE NEXT FEW HOURS ENDING THE HOT TEMPERATURES. UNTIL THE FRONT DOES MOVE THROUGH IT WILL BE WARM AND A LITTLE HUMID SO AVOID STRENUOUS ACTIVITY YET THIS EVENING. $$ FAB
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 Des Moines, IA wrote its last area forecast discussion before this heat advisory went out at Jul 23, 6:48 PM CDT, 2 hours 2 minutes earlier.
Area forecast discussion, Jul 23, 6:48 PM CDT, 2 hours 2 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DES MOINES IA 648 PM CDT MON JUL 23 2012 ...UPDATE TO AVIATION FORECAST 24/00Z... .SHORT TERM /TONIGHT/... MAIN FORECAST CONCERN IS POTENTIAL FOR CONVECTION ACROSS NORTHERN IOWA TONIGHT. WEAK BOUNDARY EXTENDS ACROSS SOUTHERN MN COMBINED WITH AN 500MB VORT MAX WILL BE THE FOCUS FOR THUNDERSTORMS LATER THIS EVENING INTO TUESDAY MORNING. NAM/SREF/RAP KEEP CONVECTION ALONG THE BORDER OVERNIGHT...4.0KM WRF FROM NCEP HAS SOME ISOLATED CONVECTION ACROSS THE NORTHERN TWO TIERS OF COUNTIES AND THE NSSL 4.0KM WRF IS SIMILAR. LATEST HRRR (17Z RUN) IS MORE BULLISH IN BREAKING OUT CONVECTION THIS AFTERNOON INTO THE EVENING AND SEEMS MORE WIDESPREAD THAN ANY OTHER MODEL. LEANED TOWARD A BLEND OF THE NAM12/SREF WITH TIMING AND PLACEMENT OF CONVECTION OVER NORTHERN IOWA PAST 03Z TUESDAY. WITH THE VERY DRY AIR MASS IN THE LOWER LEVELS AND BUFR SOUNDINGS INDICATIVE OF MAINLY WIND THREAT AS THEY MIX UP TO AROUND 850-700MB DEPENDING ON WHICH MODEL...CANNOT RULE AN ISOLATED SEVERE POTENTIAL TONIGHT ACROSS NORTHERN IOWA. EFFECTIVE SHEAR AROUND 35-40KTS BUT THERE IS LITTLE...IF ANY...LOW LEVEL SHEAR WITH 0-1KM AND 0-3KM SHEAR LESS THAN 15KTS AND 30KTS RESPECTIVELY. THERE IS PLENTY OF INSTABILITY PRESENT BUT WITH SUCH A STRONG CAP IN PLACE...IT WILL TAKE SOME TIME FOR IT ERODE. WITH THE UPPER LEVEL VORT MAX TIMING TO MOVE INTO NORTHERN IOWA AFTER 03Z...HAVE HIGHEST POPS B/T 06-12Z TUESDAY. .LONG TERM /TUESDAY THROUGH MONDAY/... THERE IS LITTLE CHANGE NEEDED TO THE GOING FORECAST. IT WILL REMAIN HOT THROUGH WEDNESDAY WITH CHANCES FOR SHOWERS/THUNDERSTORMS ACROSS THE NORTHEAST AND EAST. SOUNDING ARE SHOWING SOME DRY AIR ALOFT AND A CLASSIC INVERTED V SO THERE IS SOME POTENTIAL FOR STRONG/DAMAGING WIND WITH THESE STORMS AND THAT IS COVERED IN VARIOUS OUTLOOKS. THE MODELS ARE A LITTLE SLOWER IN BRINGING THE FRONT THROUGH SO WEDNESDAY HIGHS MAY NEED TO BE BROUGHT UP BUT I WOULD LIKE TO SEE WHAT CLOUDS/CONVECTIVE TRENDS WILL DO BEFORE RAISING THEM MORE THAN I HAVE DONE. SOMETHING ELSE OF NOTE THAT MAY BE A CAVEAT TO THE SEVERE POTENTIAL IS THAT THE MODELS HAD BEEN ADVERTISING A VORT MAX TO DROP DOWN THE RIDGE ACROSS THE EAT/NORTHEAST AND NOW THEY ARE TAKING THAT VORT MAX EAST AND NOT DROPPING IT SOUTH. QPF IS ALSO LESS NOW FOR THE AREA WHICH IS NOT A SURPRISE REALLY. OTHER THINGS OF NOTE IS THAT A SHORTWAVE THAT WAS PROGGED FOR SATURDAY NIGHT IS NOW COMING THROUGH ON SUNDAY. THIS IS ADVERTISED BY BOTH THE GFS AND EURO SO I LEFT SATURDAY DRY AND INCREASED POPS ON SUNDAY. TEMPS WILL STILL BE SEASONAL BUT COMPARED TO WHAT WE HAVE THE TERM "COOLER" CAN BE APPLIED HERE AND IT WILL IN DEED FEEL THAT WAY. HIGHS FOR THE WEEKEND WILL BE IN THE LOWER TO MID 80S WITH MAYBE SOME 90S ACROSS THE FAR SOUTHWEST. THE COOLER TEMPS DO NOT APPEAR TO BE STAYING AS WAS ELUDED TO YESTERDAY...THE MODELS REBUILD THE RIDGE OVER THE ROCKIES AND TRENDS ARE TO BRING THE UPPER RIDGE BACK INTO THE MIDWEST. THIS WILL OCCUR BEYOND THE EXTENDED PERIOD SO JUST HOW MUCH HEAT WE WILL SEE IS STILL GOING TO NEED TO BE EVALUATED. WE WILL AT LEAST SEE A SEVERAL DAY BREAK FROM THE OPPRESSIVE HEAT LATER THIS WEEK. && .AVIATION...24/00Z EXPECTING VFR CONDITIONS THROUGHOUT THE TAF FORECAST PERIOD EVEN WITH THE SURFACE BOUNDARY POSSIBLY SAGGING SOUTH OF KMCW/KALO OVERNIGHT. ISOLATED TSTM ARE STILL POSSIBLE THIS EVENING...BUT INDICATIONS ARE IT WILL STAY NORTH OF KMCW/KALO. OTHERWISE...WINDS MIX DOWN AGAIN TOMORROW WITH SOME GUSTS TO AROUND 15KTS POSSIBLE. && .DMX WATCHES/WARNINGS/ADVISORIES... EXCESSIVE HEAT WARNING UNTIL 7 PM CDT WEDNESDAY ADAIR-ADAMS-APPANOOSE-AUDUBON-BOONE-CALHOUN-CARROLL-CASS-CLARKE- CRAWFORD-DALLAS-DAVIS-DECATUR-GREENE-GUTHRIE-HAMILTON-JASPER-LUCAS- MADISON-MAHASKA-MARION-MONROE-POLK-RINGGOLD-SAC-STORY-TAYLOR-UNION- WAPELLO-WARREN-WAYNE-WEBSTER. && LONG TERM...FAB SHORT TERM...PODRAZIK AVIATION...JUNGBLUTH
Hazardous weather outlook, Jul 23, 4:04 PM CDT, 4 hours 46 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 404 PM CDT MON JUL 23 2012 IAZ004>007-015>017-023>028-037>039-049-050-062-242115- EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY- BLACK HAWK-MARSHALL-TAMA-POWESHIEK- 404 PM CDT MON JUL 23 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TONIGHT A SLIGHT RISK OF SEVERE STORMS IS FORECAST TONIGHT INTO EARLY TUESDAY MORNING WITH THE MAIN THREAT OF DAMAGING WINDS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY HOT WEATHER IS FORECAST THROUGH WEDNESDAY...ESPECIALLY SOUTH OF HIGHWAY 20 WHERE AFTERNOON HIGHS MAY APPROACH 100 DEGREES WITH HEAT INDEX READINGS APPROACHING 105 DEGREES. THUNDERSTORMS ARE EXPECTED AT TIMES BETWEEN TUESDAY AND EARLY FRIDAY. THERE IS A LOW RISK OF SEVERE WEATHER FROM TUESDAY THROUGH WEDNESDAY EVENING...WITH DAMAGING WINDS THE PRIMARY THREAT AND HAIL ALSO POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING. IAZ033>036-044>048-057>061-070>075-081>086-092>097-242115- SAC-CALHOUN-WEBSTER-HAMILTON-CRAWFORD-CARROLL-GREENE-BOONE-STORY- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-CASS-ADAIR-MADISON-WARREN-MARION- MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD- DECATUR-WAYNE-APPANOOSE-DAVIS- 404 PM CDT MON JUL 23 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TONIGHT AN EXCESSIVE HEAT WARNING IS IN EFFECT FOR THE AREA INTO WEDNESDAY EVENING. PLEASE SEE THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR MORE INFORMATION. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY N EXCESSIVE HEAT WARNING IS IN EFFECT FOR THE AREA INTO WEDNESDAY EVENING. PLEASE SEE THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR MORE INFORMATION. THUNDERSTORM CHANCES WILL RETURN FROM LATE WEDNESDAY THROUGH THURSDAY. THERE IS A LOW RISK OF SEVERE WEATHER ON WEDNESDAY EVENING AND WEDNESDAY NIGHT...WITH DAMAGING WINDS THE PRIMARY THREAT AND HAIL ALSO POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
In the hours before
Special weather statement, Jul 23, 5:31 PM CDT, 3 hours 19 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 531 PM CDT MON JUL 23 2012 IAZ033>039-044>050-057>062-070>075-081>086-092>097-240045- SAC-CALHOUN-WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD- CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS- POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA- ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR- WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...SAC CITY...ROCKWELL CITY...FORT DODGE... WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...DENISON... CARROLL...JEFFERSON...BOONE...AMES...MARSHALLTOWN...TOLEDO... AUDUBON...GUTHRIE CENTER...ADEL...DES MOINES...NEWTON... GRINNELL...ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA... KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON... ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON... CENTERVILLE...BLOOMFIELD 531 PM CDT MON JUL 23 2012 ...WILD FIRE DANGER INCREASING ACROSS CENTRAL AND SOUTH CENTRAL IOWA... THE COMBINATION OF VERY DRY CONDITIONS...AFTERNOON TEMPERATURES FROM 95 TO 105 DEGREES...HUMIDITY FROM 20 TO 40 PERCENT AND A SOUTHWEST WINDS OF 10 TO 20 MPH HAVE COMBINED TO PRODUCE CONDITIONS FAVORABLE FOR WILD FIRES ACROSS MUCH OF CENTRAL AND SOUTH CENTRAL IOWA. THE SITUATION IS MOST DANGEROUS IN GRASSY AREAS AND RANGELAND. THE HOT AND DRY WEATHER PATTERN WILL REMAIN OVER THE AREA THROUGH MIDWEEK. DURING THIS TIME...REFRAIN FROM OUTDOOR BURNING AND BE VERY CAREFUL WITH SMOKING MATERIALS. SEVERAL COUNTIES HAVE BURN BANS IN EFFECT. PLEASE CHECK IN YOUR COUNTY BEFORE BURNING. ANY OPEN FIRE COULD SPREAD EASILY. A COOL FRONT MOVING THROUGH THE UPPER MIDWEST WEDNESDAY NIGHT AND THURSDAY WILL PROVIDE THUNDERSTORM CHANCES AND COOLER TEMPERATURES SHOULD SHOULD DIMINISH THE FIRE THREAT.
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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.