Alert archive / Iowa / Excessive Heat Warnings in 2011
Excessive Heat Warning 2, NWS Des Moines, IA
NWS Des Moines, IA issued this excessive heat warning at Jul 22, 2011, 3:40 AM CDT for 21 counties in Iowa. It took effect at Jul 22, 2011, 12:00 PM CDT. It was in force for 32 hr. 16 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 22, 2011, 3:40 AM CDT (08:40 UTC)
- In effect from
- Jul 22, 2011, 12:00 PM CDT
- Expired
- Jul 23, 2011, 8:23 PM CDT
- In force
- 32 hr
- Issued by
- NWS Des Moines, IA
All 21 counties
Adair County, IA, Adams County, IA, Appanoose County, IA, Cass County, IA, Clarke County, IA, Davis County, IA, Decatur County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Monroe County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA
The radar
The Des Moines radar (KDMX), 69 km from the middle of the area, began a volume at 08:39 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 22, 7:57 PM CDT | HAIL 0.88 | 1 W Knoxville, IA | WIND GUST OF 52 MPH OBSERVED AT SAME TIME. |
| Jul 22, 8:03 PM CDT | TSTM WND DMG | Knoxville, IA | SEVERAL REPORTS OF POWERLINES DOWN IN THE CITY AND NEAR THE RACETRACK. TIME ESTIMATED FROM RADAR. |
| Jul 22, 8:16 PM CDT | TSTM WND GST 63 | 7 W Pella, IA | |
| Jul 22, 8:40 PM CDT | TSTM WND DMG | Sully, IA | POWER LINES DOWN |
| Jul 22, 8:50 PM CDT | LIGHTNING | Knoxville, IA | LIGHTNING STRUCK AN ABANDONED CHURCH AT THE 300 BLOCK OF N 1ST STREET AND STARTED A FIRE. FIRE CURRENTLY REPORTED TO BE UNDER CONTROL. TIME ESTIMATED FROM RADAR. |
| Jul 22, 9:00 PM CDT | HAIL 0.75 | Oakland Acres, IA | WINDS ALSO ESTIMATED AT 50 MPH. |
| Jul 22, 9:15 PM CDT | TSTM WND GST 58 | Grinnell, IA | |
| Jul 23, 7:00 AM CDT | TSTM WND DMG | 7 Nnw Cromwell, IA | TREE DOWN ON HOUSE...OTHER LARGE LIMBS DOWN...MOST LIKELY MICROBURST...TIME ESTIMATED FROM RADAR |
| Jul 23, 8:38 AM CDT | TSTM WND GST 0 | 3 Sw Menlo, IA | SHERIFF REPORTED SEMIS BLOWN OFF I-80 JUST EAST OF HIGHWAY 25. |
| Jul 23, 6:15 PM CDT | TSTM WND GST 60 | 6 E Chariton, IA | SMALL LIMBS DOWN. MEASURED 3.00 INCHES OF RAIN WITHIN AN HOUR PERIOD. |
| Jul 23, 6:25 PM CDT | TSTM WND DMG | Russell, IA | ESTIMATED PEAK GUST AT 60 MPH...CORN BENT OVER FROM WIND. RADAR ESTIMATED TIME. |
| Jul 23, 6:49 PM CDT | TSTM WND DMG | 8 N Promise City, IA | TREES DOWN NEAR THE TOWN OF CONFIDENCE |
| Jul 23, 6:49 PM CDT | TSTM WND GST 60 | 11 W Rathbun Lake, IA | |
| Jul 23, 7:07 PM CDT | TSTM WND DMG | N Promise City, IA | POWER LINES DOWN WITH ONE POWER POLE SNAPPED JUST NORTH OF TOWN. |
| Jul 23, 7:13 PM CDT | TSTM WND DMG | Seymour, IA | LARGE TREE LIMBS DOWN IN THE TOWN OF SEYMOUR |
| Jul 23, 7:40 PM CDT | TSTM WND DMG | Cincinnati, IA | PORTION OF TIN ROOF BLEW OFF BUILDING ADJACENT TO KONVENIENCE KORNER GAS STATION...TIME ESTIMATED FROM RADAR |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 8.7 hours before the alert went out and 237 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
- 2480 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 1131 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 142 m²/s²
- 0-3 km storm-relative helicity
- 460 m²/s²
- Significant tornado parameter
- 3.8
- Supercell composite
- 43.2
The text
As transmitted, in the capitals the NWS used until 2016.
619 WWUS73 KDMX 220840 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 340 AM CDT FRI JUL 22 2011 ...DANGEROUS HEAT AND HUMIDITY RETURNING TO PORTIONS OF IOWA TODAY AND SATURDAY... .A WARM FRONT WILL LIFT NORTH TODAY AND TONIGHT ALLOWING DEW POINTS TO CLIMB BACK INTO THE MID TO UPPER 70S BY THIS EVENING. ALONG WITH THAT AFTERNOON HIGHS ACROSS THE SOUTH WILL REACH THE LOWER TO MID 90S BOTH TODAY AND SATURDAY BEFORE A COOL FRONT CROSSES THE REGION ON SUNDAY. THE EXTENDED PERIOD OF EXTREME HEAT THIS WEEK ALONG WITH A RETURN OF MORE HOT WEATHER WILL RESULT IN A RENEWED DANGER TO PEOPLE...PETS...AND LIVESTOCK. IAZ060>062-070>075-081>086-092>097-221645- /O.NEW.KDMX.EH.W.0002.110722T1700Z-110724T1200Z/ 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...DES MOINES...NEWTON...GRINNELL... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 340 AM CDT FRI JUL 22 2011 ...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON TODAY TO 7 AM CDT SUNDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED AN EXCESSIVE HEAT WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 7 AM CDT SUNDAY. * TEMPERATURE...TEMPERATURES ARE EXPECTED TO REACH THE LOWER TO MID 90S THIS AFTERNOON. ON SATURDAY TEMPERATURES ARE EXPECTED TO BE A FEW DEGREES WARMER REGION WIDE. ADDITIONAL ADVISORIES OR AN EXPANSION OF THE WARNING MAY BE NEEDED INTO NORTH CENTRAL IOWA. * HEAT INDEX...WILL REACH THE 105 TO 110 RANGE THIS AFTERNOON AND SATURDAY AFTERNOON AS WELL. * IMPACTS...WITH THE PAST WEEK OF DANGEROUSLY HIGH HEAT AND HUMIDITY ANOTHER ROUND OF SIMILAR CONDITIONS IS LIKELY TO CAUSE SIGNIFICANT PHYSICAL STRESS AND CREATE CONDITIONS FAVORABLE FOR HEAT RELATED PROBLEMS. PRECAUTIONS SHOULD ALSO BE TAKEN TO PROTECT PETS AND LIVESTOCK. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. 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. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL 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 911. && $$ REV
7 follow-up statements
265 WWUS73 KDMX 221557 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1057 AM CDT FRI JUL 22 2011 ...DANGEROUS HEAT AND HUMIDITY RETURNING TO PORTIONS OF IOWA TODAY AND SATURDAY... .A WARM FRONT WILL LIFT NORTH TODAY AND TONIGHT ALLOWING DEW POINTS TO CLIMB BACK INTO THE MID TO UPPER 70S. MEANWHILE AFTERNOON HIGH TEMPERATURES ACROSS THE SOUTH WILL REACH THE LOW TO MID 90S BOTH TODAY AND SATURDAY BEFORE A COLD FRONT CROSSES THE REGION EARLY ON SUNDAY. THE EXTENDED PERIOD OF EXTREME HEAT EARLIER THIS WEEK ALONG WITH A RETURN OF MORE HOT WEATHER WILL RESULT IN A RENEWED DANGER TO PEOPLE...PETS...AND LIVESTOCK. IAZ060>062-070>075-081>086-092>097-230000- /O.CON.KDMX.EH.W.0002.110722T1700Z-110724T1200Z/ 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...DES MOINES...NEWTON...GRINNELL... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 1057 AM CDT FRI JUL 22 2011 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 AM CDT SUNDAY... * TEMPERATURE...TEMPERATURES ARE EXPECTED TO REACH THE LOW TO MID 90S THIS AFTERNOON. ON SATURDAY TEMPERATURES ARE EXPECTED TO BE A FEW DEGREES WARMER. * HEAT INDEX...WILL REACH THE 105 TO 110 RANGE THIS AFTERNOON AND EVENING AND SATURDAY AFTERNOON AND EVENING AS WELL. * IMPACTS...WITH THE PAST WEEK OF DANGEROUSLY HIGH HEAT AND HUMIDITY ANOTHER ROUND OF SIMILAR CONDITIONS IS LIKELY TO CAUSE SIGNIFICANT PHYSICAL STRESS AND CREATE CONDITIONS FAVORABLE FOR HEAT RELATED PROBLEMS. PRECAUTIONS SHOULD ALSO BE TAKEN TO PROTECT PETS AND LIVESTOCK. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. 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. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL 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 911. && $$ LEE
690 WWUS73 KDMX 222112 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 412 PM CDT FRI JUL 22 2011 ...DANGEROUS HEAT WILL CONTINUE INTO SATURDAY... .A WARM FRONT WILL LIFT NORTH OF THE STATE ON SATURDAY WITH THE VERY WARM AND HUMID CONDITIONS SPREADING BACK NORTH THROUGH ALL OF CENTRAL IOWA. A COLD FRONT WILL MOVE THROUGH SATURDAY NIGHT AND SUNDAY AND WILL BRING RELIEF TO THE STATE. IAZ060>062-070>075-081>086-092>097-230515- /O.CON.KDMX.EH.W.0002.000000T0000Z-110724T1200Z/ 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...DES MOINES...NEWTON...GRINNELL... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 412 PM CDT FRI JUL 22 2011 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 AM CDT SUNDAY... * TEMPERATURE...TEMPERATURES WILL BE BACK INTO THE LOW TO MID 90S ON SATURDAY WITH OVERNIGHT LOWS IN THE MID TO UPPER 70S. * HEAT INDEX...HEAT INDEX VALUES OF 105 TO 115 ARE EXPECTED AGAIN SATURDAY AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. 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. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL 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 911. && $$ IAZ004>007-015>017-023>028-033>039-044>050-057>059-230515- /O.NEW.KDMX.HT.Y.0003.110723T1500Z-110724T0400Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL 412 PM CDT FRI JUL 22 2011 ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 11 PM CDT SATURDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A HEAT ADVISORY...WHICH IS IN EFFECT FROM 10 AM TO 11 PM CDT SATURDAY. * TEMPERATURE...TEMPERATURES WILL BE IN THE LOW TO MID 90S ON SATURDAY. * HEAT INDEX...HEAT INDEX VALUES WILL BE IN THE 105 TO 110 DEGREE RANGE SATURDAY AFTERNOON. 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. 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. && $$
501 WWUS73 KDMX 230205 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 905 PM CDT FRI JUL 22 2011 ...DANGEROUS HEAT WILL CONTINUE INTO SATURDAY... .A WARM FRONT WILL LIFT NORTH OF THE STATE ON SATURDAY WITH THE VERY WARM AND HUMID CONDITIONS SPREADING BACK NORTH THROUGH ALL OF CENTRAL IOWA. A COLD FRONT WILL MOVE THROUGH SATURDAY NIGHT AND SUNDAY AND WILL BRING RELIEF TO THE STATE. IAZ060>062-070>075-081>086-092>097-231015- /O.CON.KDMX.EH.W.0002.000000T0000Z-110724T1200Z/ 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...DES MOINES...NEWTON...GRINNELL... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 905 PM CDT FRI JUL 22 2011 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 AM CDT SUNDAY... * TEMPERATURE...TEMPERATURES WILL BE BACK INTO THE LOW TO MID 90S ON SATURDAY WITH OVERNIGHT LOWS IN THE MID TO UPPER 70S. * HEAT INDEX...HEAT INDEX VALUES OF 105 TO 115 ARE EXPECTED AGAIN SATURDAY AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. 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. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL 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 911. && $$ IAZ004>007-015>017-023>028-033>039-044>050-057>059-231015- /O.CON.KDMX.HT.Y.0003.110723T1500Z-110724T0400Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL 905 PM CDT FRI JUL 22 2011 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 11 PM CDT SATURDAY... * TEMPERATURE...TEMPERATURES WILL BE IN THE LOW TO MID 90S ON SATURDAY. * HEAT INDEX...HEAT INDEX VALUES WILL BE IN THE 105 TO 110 DEGREE RANGE SATURDAY AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN EMERGENCY...CALL 9 1 1. && $$
324 WWUS73 KDMX 230912 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 412 AM CDT SAT JUL 23 2011 ...DANGEROUS HEAT WILL CONTINUE INTO SATURDAY... .A WARM FRONT WILL LIFT NORTH OF THE STATE TODAY WITH THE VERY WARM AND HUMID CONDITIONS SPREADING BACK ACROSS CENTRAL IOWA. A COLD FRONT WILL MOVE THROUGH LATE TONIGHT BUT HIGH DEWPOINTS WILL KEEP MUGGY CONDITIONS ACROSS THE AREA TONIGHT. THERE SHOULD FINALLY BE SOME RELIEF FROM THE HOT AND HUMID CONDITIONS ON SUNDAY. IAZ060>062-070>075-081>086-092>097-231715- /O.CON.KDMX.EH.W.0002.000000T0000Z-110724T1200Z/ 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...DES MOINES...NEWTON...GRINNELL... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 412 AM CDT SAT JUL 23 2011 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 AM CDT SUNDAY... * TEMPERATURE...TEMPERATURES WILL BE IN THE MID TO UPPER 90S TODAY WITH OVERNIGHT LOWS IN THE MID TO UPPER 70S. * HEAT INDEX...HEAT INDEX VALUES OF 105 TO 115 ARE EXPECTED AGAIN THIS AFTERNOON AND NEAR 80 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. 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. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL 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 911. && $$ IAZ004>007-015>017-023>028-033>039-044>050-057>059-231715- /O.CON.KDMX.HT.Y.0003.110723T1500Z-110724T0400Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL 412 AM CDT SAT JUL 23 2011 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 11 PM CDT THIS EVENING... * TEMPERATURE...TEMPERATURES WILL BE IN THE LOWER TO MID 90S TODAY. * HEAT INDEX...HEAT INDEX VALUES WILL BE IN THE 100 TO 105 DEGREE RANGE THIS AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN EMERGENCY...CALL 9 1 1. && $$ FAB
052 WWUS73 KDMX 231450 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 950 AM CDT SAT JUL 23 2011 ...DANGEROUS HEAT WILL CONTINUE INTO SATURDAY... .A WARM FRONT WILL LIFT NORTH OF THE STATE THIS AFTERNOON WITH THE VERY WARM AND HUMID CONDITIONS SPREADING BACK ACROSS CENTRAL IOWA. A COLD FRONT WILL MOVE THROUGH LATE TONIGHT BUT HIGH DEWPOINTS WILL KEEP MUGGY CONDITIONS ACROSS THE AREA TONIGHT. THERE SHOULD FINALLY BE SOME RELIEF FROM THE HOT AND HUMID CONDITIONS ON SUNDAY. IAZ060>062-070>075-081>086-092>097-232300- /O.CON.KDMX.EH.W.0002.000000T0000Z-110724T1200Z/ 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...DES MOINES...NEWTON...GRINNELL... ATLANTIC...GREENFIELD...WINTERSET...INDIANOLA...KNOXVILLE... OSKALOOSA...CORNING...CRESTON...OSCEOLA...CHARITON...ALBIA... OTTUMWA...BEDFORD...MOUNT AYR...LEON...CORYDON...CENTERVILLE... BLOOMFIELD 950 AM CDT SAT JUL 23 2011 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 AM CDT SUNDAY... * TEMPERATURE...TEMPERATURES WILL BE IN THE MID TO UPPER 90S THIS AFTERNOON WITH OVERNIGHT LOWS IN THE MID TO UPPER 70S. THUNDERSTORMS OVER PARTS OF SOUTHWEST AND CENTRAL IOWA WILL PROVIDE RELIEF FROM THE HEAT UNTIL THE EARLY AFTERNOON HOURS...BUT TEMPERATURES WILL RISE RAPIDLY AS THUNDERSTORMS END. * HEAT INDEX...HEAT INDEX VALUES OF 105 TO 115 ARE EXPECTED AGAIN THIS AFTERNOON AND NEAR 80 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. 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. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL 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 911. && $$ IAZ004>007-015>017-023>028-033>039-044>050-057>059-232300- /O.CON.KDMX.HT.Y.0003.110723T1500Z-110724T0400Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL 950 AM CDT SAT JUL 23 2011 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM CDT THIS EVENING... * TEMPERATURE...TEMPERATURES WILL BE IN THE LOWER TO MID 90S TODAY. * HEAT INDEX...HEAT INDEX VALUES WILL BE IN THE 100 TO 108 DEGREE RANGE THIS AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS...IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN EMERGENCY...CALL 9 1 1. && $$
540 WWUS73 KDMX 232042 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 342 PM CDT SAT JUL 23 2011 ...DANGEROUS HEAT WILL CONTINUE INTO TONIGHT... .VERY WARM AND HUMID CONDITIONS WILL PERSIST THROUGH TONIGHT. A COLD FRONT WILL MOVE THROUGH LATE TONIGHT BUT HIGH DEWPOINTS WILL KEEP MUGGY CONDITIONS ACROSS THE AREA TONIGHT. THERE SHOULD FINALLY BE SOME RELIEF FROM THE HOT AND HUMID CONDITIONS ON SUNDAY. IAZ060>062-232145- /O.CAN.KDMX.EH.W.0002.000000T0000Z-110724T1200Z/ POLK-JASPER-POWESHIEK- INCLUDING THE CITIES OF...DES MOINES...NEWTON...GRINNELL 342 PM CDT SAT JUL 23 2011 ...EXCESSIVE HEAT WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE EXCESSIVE HEAT WARNING. CLOUDS...ALONG WITH SCATTERED THUNDERSTORMS...KEPT TEMPERATURES COOLER TODAY WITH HIGHS IN THE 80S TO AROUND 90 AND HEAT INDICES AROUND 100. GRADUAL IMPROVEMENT WILL CONTINUE OVERNIGHT TONIGHT WITH HEAT INDICES FALLING INTO THE MID 70S. $$ IAZ004>007-015>017-023>028-033>039-044>050-057>059-232145- /O.CAN.KDMX.HT.Y.0003.000000T0000Z-110724T0400Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY...SAC CITY... ROCKWELL CITY...FORT DODGE...WEBSTER CITY...ELDORA... GRUNDY CENTER...WATERLOO...DENISON...CARROLL...JEFFERSON... BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON...GUTHRIE CENTER... ADEL 342 PM CDT SAT JUL 23 2011 ...HEAT ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE HEAT ADVISORY. AN AREA OF CLOUDS AND RAIN TO THE SOUTH...ALONG WITH SOME INCREASE IN CLOUDINESS...HELPED TO KEEP TEMPERATURES A BIT COOLER TODAY. HEAT INDICES WILL BE IN THE MID 90S TO LOW 100S EARLY THIS EVENING. THUNDERSTORMS AND COOLER WEATHER WILL OVERSPREAD THE AREA BY MID TO LATE EVENING. $$ IAZ070>075-081>086-092>097-240445- /O.CON.KDMX.EH.W.0002.000000T0000Z-110724T1200Z/ CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS- MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET... INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA... CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON... CORYDON...CENTERVILLE...BLOOMFIELD 342 PM CDT SAT JUL 23 2011 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 AM CDT SUNDAY... * TEMPERATURE...TEMPERATURES WILL BE IN THE MID TO UPPER 90S EARLY THIS EVENING WITH OVERNIGHT LOWS IN THE MID 70S. THUNDERSTORMS WILL DEVELOP OVERNIGHT AND PROVIDE SOME RELIEF FROM THE HEAT. * HEAT INDEX...HEAT INDEX VALUES OF 105 TO 115 ARE EXPECTED THROUGH THE EVENING...FALLING TO THE MID 70S BY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. 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. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL 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 911. && $$
266 WWUS73 KDMX 240123 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 823 PM CDT SAT JUL 23 2011 ...COOLER TEMPERATURES WILL FILTER INTO IOWA OVERNIGHT TONIGHT... .RAINFALL AND CLOUD COVER DUE TO THUNDERSTORM ACTIVITY ACROSS SOUTHERN IOWA HAS LEAD TO COOLER TEMPERATURES THIS EVENING. IN ADDITION...A COLD FRONT IS FORECAST TO PUSH ACROSS THE STATE BY SUNDAY BRINGING MORE RELIEF TO THE DANGEROUSLY HOT AND HUMID CONDITIONS. IAZ070>075-081>086-092>097-240230- /O.CAN.KDMX.EH.W.0002.000000T0000Z-110724T1200Z/ CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS- MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ATLANTIC...GREENFIELD...WINTERSET... INDIANOLA...KNOXVILLE...OSKALOOSA...CORNING...CRESTON...OSCEOLA... CHARITON...ALBIA...OTTUMWA...BEDFORD...MOUNT AYR...LEON... CORYDON...CENTERVILLE...BLOOMFIELD 823 PM CDT SAT JUL 23 2011 ...EXCESSIVE HEAT WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE EXCESSIVE HEAT WARNING. TEMPERATURES HAVE ALREADY FALLEN INTO THE MIDDLE 70S TO THE MIDDLE 80S ACROSS SOUTHERN IOWA THIS EVENING DUE TO RAIN COOLED AIR AND CLOUD COVER. HEAT INDEX READINGS RANGE IN THE 80S...BUT ARE FORECAST FALL CLOSER TO THE LOW TEMPERATURES TONIGHT WHICH ARE EXPECTED TO BE IN THE LOWER TO MIDDLE 70S. $$ KLP
What forecasters said that day
The local office's own words before this excessive heat warning 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 excessive heat warning went out at Jul 22, 3:31 AM CDT, 9 minutes earlier.
Area forecast discussion, Jul 22, 3:31 AM CDT, 9 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DES MOINES IA 331 AM CDT FRI JUL 22 2011 .SHORT TERM /TODAY/... WARM FRONT LIGHTING UP THIS MORNING IN GRAND FASHION WITH MODEST CAPE AND ISENTROPIC LIFT ACROSS THE BOUNDARY. H850/H925 FLOW SUGGESTED EARLIER THAT STORMS WOULD BREAK OUT EARLY THIS MORNING. MODELS CONTINUES TO LIFT FRONT NORTH IN THE NEXT 24 HOURS AND HINT THAT MAIN LIFT THIS AFTERNOON WILL OCCUR ALONG AND NORTH OF US 30 WHICH SHOULD ALLOW FOR HEAT AND HUMIDITY TO RETURN TO THE SOUTHERN PORTION OF THE REGION. ACROSS THE NORTH SOME CHANCE FOR SEVERE WEATHER LATE THIS AFTERNOON WITH DAYTIME HEATING ALONG THE FRONT. AFTER LOOKING AT DEW POINT TRENDS AND EXPECTED HIGH TEMPS ACROSS THE SOUTH...HAVE DECIDED TO ISSUE A NEW EXCESSIVE HEAT WARNING FOR THE SOUTHERN SECTIONS OF THE REGION FROM NOON THROUGH SUNDAY MORNING. HIGHS THIS AFTERNOON WILL REACH THE LOWER TO MID 90S SOUTH...WITH DEW POINTS CLIMBING BACK INTO THE MID 70S. THIS WILL PUSH HEAT INDEX READINGS TO ABOUT 104 TO 108 AT MORE RELIABLE ASOS SITES THIS AFTERNOON/EARLY EVENING. APPARENT TEMPS OVERNIGHT AND THROUGH SATURDAY NIGHT WILL REMAIN NEAR OR HIGHER THAN 75 DEGREES. THOUGH THESE DAY TIME VALUES ARE LOWER THAN OUR USUAL CRITERIA OF 110-115...THE LACK OF ANY REAL BREAK...OTHER THAN YESTERDAY AFTERNOON...WARRANTS A HEAT WARNING RATHER THAN AN ADVISORY. THE ACCUMULATIVE EFFECTS OF PROLONGED HEAT ARE WHAT IS DRIVING THIS DECISION...NOT SO MUCH THE RAW NUMBERS. WINDS WILL BE MODEST TODAY...SO THIS WILL ADD TO THE LACK OF AIR MOVEMENT. THE CURRENT CONVECTION SHOULD BECOME A BIT MORE SCATTERED AS THE LOW LEVEL JET RELAXES AFT 15Z THIS MORNING WITH MOST OF THE ACTIVITY OUT OF THE AREA. THROUGH THE DAY THE BETTER CHANCES SHIFT NORTH WITH ONLY SLIGHT CHANCES ACROSS THE SOUTH. .LONG TERM /TONIGHT THROUGH THURSDAY/... HAVE NOT CHANGED THINKING WITH BEGINNING OF EXTENDED. OVERNIGHT FRIDAY ANTICIPATE CONVECTIVE DEVELOPMENT IN VICINITY OF RETREATING SURFACE BOUNDARY ACROSS NORTHERN IOWA...WITH A PUSH OF PRECIPITATION INTO THE OVER NIGHT FROM WESTERN CONVECTION. HAVE EXTENDED CHANCE FOR PRECIPITATION FURTHER SOUTH AS FRONT DOES APPEAR TO BE SLOW IN LIFTING BACK NORTH. SATURDAY COULD SEE ADDITIONAL CHANCES FOR PRECIPITATION AS FRONT PUSHES IN FROM CANADIAN LOW. THIS WILL BRINGING CHANCES FOR PRECIPITATION THROUGH THE WEEKEND...BUT MODELS HAVE LATCHED ONTO MUCH FASTER SOLUTION...AND HAVE PULLED PRECIPITATION OUT A BIT EARLIER...LATE SUNDAY. BEHIND FRONT TEMPERATURES WILL COOL BACK TO NORMAL...BUT WILL STILL BE WARM. DEW POINTS WILL DROP SIGNIFICANTLY AND MUCH NEEDED RELIEF FROM HOT WEATHER WILL BEGIN THE WEEK. HOWEVER...EXPECT HEAT TO CONTINUE UNTIL SUNDAY...WITH GOOD MIXING ALLOWING HIGH TEMPERATURES TO REACH THE 90S. DEW POINTS WILL REMAIN HIGH WITH SOUTHERLY FLOW...AND EXPECT HEAT ADVISORY CRITERIA TO BE MET THROUGHOUT THE CWA SATURDAY. BEGINNING OF WEEK WILL BE DRY WITH SURFACE HIGH PRESSURE PUSHING IN BEHIND FRONTAL PASSAGE. HOWEVER...EXTENDED WILL LIKELY SEE A RETURN OF PRECIPITATION AS WEAK ZONAL FLOW ALLOWS FOR SHORTWAVE ENERGY TO PUSH EASTWARD...ALONG WITH ANOTHER FROPA LATE IN THE PERIOD. && .AVIATION...22/06Z CONVECTIVE COMPLEX OVER NORTHERN KANSAS AND SOUTHERN NEBRASKA SHOULD LEFT ENE INTO SOUTHWEST IOWA LATE TONIGHT AND THEN WEAKEN DURING THE MORNING ACROSS CENTRAL IOWA AS LOW-LEVEL JET SUPPORT WEAKENS. DEEPENING SYSTEM TO THE NORTHWEST SHOULD HELP PULL WARM FRONT NORTH ACROSS IOWA TODAY AND EXPECT VFR CONDITIONS. NAM MODEL SOUNDINGS FROM 00Z DO NOT SUPPORT A CU FIELD AND NONE WAS FORECAST. 00Z NAM DEVELOPS THUNDERSTORMS OVER NORTH CENTRAL WITH PEAK HEATING LATE FRIDAY AFTERNOON. CONFIDENCE FOR TIMING THUNDERSTORMS NOT HIGH ENOUGH TO SUPPORT PREVAILING OR TEMPO GROUPS SO FORECAST VCTS WHEN PROBABILITIES FOR THUNDERSTORMS IS HIGHEST. && .DMX WATCHES/WARNINGS/ADVISORIES... EXCESSIVE HEAT WARNING FROM NOON TODAY TO 7 AM CDT SUNDAY FOR ADAIR-ADAMS-APPANOOSE-CASS-CLARKE-DAVIS-DECATUR-JASPER-LUCAS- MADISON-MAHASKA-MARION-MONROE-POLK-POWESHIEK-RINGGOLD-TAYLOR- UNION-WAPELLO-WARREN-WAYNE. && SHORT TERM...REV LONG TERM...WILKINS AVIATION...JOHNSON
Hazardous weather outlook, Jul 21, 4:34 PM CDT, 11 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 434 PM CDT THU JUL 21 2011 IAZ005>007-015>017-023-025>028-033>039-044>050-222145- KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-POCAHONTAS- WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-WEBSTER-HAMILTON-HARDIN- GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA- 434 PM CDT THU JUL 21 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TONIGHT THERE IS A CHANCE OF NON SEVERE THUNDERSTORMS TONIGHT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SCATTERED THUNDERSTORMS ARE POSSIBLE FRIDAY THROUGH SUNDAY AND AGAIN ON WEDNESDAY. SOME SEVERE WEATHER WILL BE POSSIBLE DURING THIS TIME...MAINLY FROM DAMAGING WINDS AND LARGE HAIL. HEAT INDEX TEMPERATURES SHOULD REACH 100 TO 105 DEGREES FRIDAY AND SATURDAY AFTERNOONS. ALTHOUGH NOT AS HOT AS EARLIER IN THE WEEK...CAUTION WILL STILL NEED TO BE EXERCISED DURING THE HEAT OF THE DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED AT TIMES FROM FRIDAY INTO THE WEEKEND. IAZ057>062-070>074-081>086-092>097-222145- AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON- WARREN-MARION-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR- RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS- 434 PM CDT THU JUL 21 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TONIGHT THERE IS A CHANCE OF THUNDERSTORMS TONIGHT WITH A SLIGHT CHANCE OF SEVERE WEATHER. THE PRIMARY SEVERE HAZARD IS DAMAGING WINDS. RIVER FLOOD WARNINGS REMAIN IN EFFECT FOR PORTIONS OF THE LOWER DES MOINES RIVER BASIN. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SCATTERED THUNDERSTORMS ARE POSSIBLE FRIDAY THROUGH SUNDAY AND AGAIN ON WEDNESDAY. SOME SEVERE WEATHER WILL BE POSSIBLE DURING THIS TIME...MAINLY FROM DAMAGING WINDS AND LARGE HAIL. HEAT INDEX TEMPERATURES SHOULD REACH 100 TO 105 DEGREES FRIDAY AND SATURDAY AFTERNOONS. ALTHOUGH NOT AS HOT AS EARLIER IN THE WEEK...CAUTION WILL STILL NEED TO BE EXERCISED DURING THE HEAT OF THE DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED AT TIMES FROM TONIGHT INTO THE WEEKEND. IAZ004-024-222145- EMMET-HUMBOLDT- 434 PM CDT THU JUL 21 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TONIGHT THERE IS A CHANCE OF NON SEVERE THUNDERSTORMS TONIGHT. RIVER FLOOD WARNINGS REMAIN IN EFFECT FOR PORTIONS OF THE UPPER DES MOINES RIVER BASIN. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SCATTERED THUNDERSTORMS ARE POSSIBLE FRIDAY THROUGH SUNDAY AND AGAIN ON WEDNESDAY. SOME SEVERE WEATHER WILL BE POSSIBLE DURING THIS TIME...MAINLY FROM DAMAGING WINDS AND LARGE HAIL. HEAT INDEX TEMPERATURES SHOULD REACH 100 TO 105 DEGREES FRIDAY AND SATURDAY AFTERNOONS. ALTHOUGH NOT AS HOT AS EARLIER IN THE WEEK...CAUTION WILL STILL NEED TO BE EXERCISED DURING THE HEAT OF THE DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED AT TIMES FROM FRIDAY AND INTO THE WEEKEND. IAZ075-222145- MAHASKA- 434 PM CDT THU JUL 21 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TONIGHT THERE IS A CHANCE OF THUNDERSTORMS TONIGHT WITH A SLIGHT CHANCE OF SEVERE WEATHER. THE PRIMARY SEVERE HAZARD IS DAMAGING WINDS. RIVER FLOOD WARNINGS REMAIN IN EFFECT FOR PORTIONS OF THE LOWER DES MOINES RIVER BASIN. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SCATTERED THUNDERSTORMS ARE POSSIBLE FRIDAY THROUGH SUNDAY AND AGAIN ON WEDNESDAY. SOME SEVERE WEATHER WILL BE POSSIBLE DURING THIS TIME...MAINLY FROM DAMAGING WINDS AND LARGE HAIL. HEAT INDEX TEMPERATURES SHOULD REACH 100 TO 105 DEGREES FRIDAY AND SATURDAY AFTERNOONS. ALTHOUGH NOT AS HOT AS EARLIER IN THE WEEK...CAUTION WILL STILL NEED TO BE EXERCISED DURING THE HEAT OF THE DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED AT TIMES FROM TONIGHT INTO THE WEEKEND.
In the hours before
Special weather statement, Jul 22, 2:42 AM CDT, 58 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 242 AM CDT FRI JUL 22 2011 IAZ007-016-017-025>028-035>039-045>050-057>062-070>072-221030- WORTH-HANCOCK-CERRO GORDO-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER- HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CARROLL-GREENE-BOONE-STORY- MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-CASS- ADAIR-MADISON- INCLUDING THE CITIES OF...NORTHWOOD...GARNER...MASON CITY... CLARION...HAMPTON...ALLISON...WAVERLY...FORT DODGE... WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...CARROLL... JEFFERSON...BOONE...AMES...MARSHALLTOWN...TOLEDO...AUDUBON... GUTHRIE CENTER...ADEL...DES MOINES...NEWTON...GRINNELL... ATLANTIC...GREENFIELD...WINTERSET 242 AM CDT FRI JUL 22 2011 ...THUNDERSTORMS WITH VIVID LIGHTNING...BRIEF GUSTY WINDS AND HEAVY RAINFALL MOVING INTO THE AREA... AN AREA OF THUNDERSTORMS IS MOVING ACROSS CENTRAL IOWA EARLY THIS MORNING. SIGNIFICANT CLOUD TO GROUND LIGHTNING...BRIEF HEAVY RAINFALL AND GUSTY WINDS UP TO 50 MPH CAN BE EXPECTED WITH THESE STORMS. SOME SMALL HAIL MAY ALSO ACCOMPANY THESE STORMS. THE STORMS ARE MOVING TO THE EAST AT 25 MPH AND WILL BE OVER WEST CENTRAL IOWA THROUGH AT LEAST 330 AM CDT THIS FRIDAY MORNING AND OVER THE EASTERN SECTIONS EAST OF I 35 THROUGH 5 AM THIS FRIDAY MORNING. REV
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 3:43 AM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Grundy, Marshall, Tama | 50 min |
| Jul 22, 4:12 PM CDT | Heat Advisory | DMX | Audubon, Black Hawk, Boone, Bremer, Butler, Calhoun and 24 more | 24 hr |
| Jul 22, 6:49 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Grundy, Hardin | 56 min |
Nearby
Excessive Heat Warnings in Iowa, 2011Every excessive heat warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.