Alert archive / Iowa / Wind Advisories in 2024
Wind Advisory 10, NWS Des Moines, IA
NWS Des Moines, IA issued this wind advisory at Oct 28, 2024, 2:56 PM CDT for 51 counties in Iowa. It took effect at Oct 29, 2024, 9:00 AM CDT. It was in force for 21 hr.
The area
The counties it named.
The facts
- Issued
- Oct 28, 2024, 2:56 PM CDT (19:56 UTC)
- In effect from
- Oct 29, 2024, 9:00 AM CDT
- Expired
- Oct 30, 2024, 5:40 AM CDT
- In force
- 21 hr
- Issued by
- NWS Des Moines, IA
All 51 counties
Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cerro Gordo County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Emmet County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Jasper County, IA, Kossuth County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Marshall County, IA, Monroe County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Sac County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 23 km from the middle of the area, began a volume at 19:58 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
Omaha, NE (KOAX), launched 12:00Z, 7.9 hours before the alert went out and 230 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1354 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 297 m²/s²
- 0-3 km storm-relative helicity
- 281 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
349 WWUS73 KDMX 281956 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 256 PM CDT Mon Oct 28 2024 IAZ033>039-044>050-057>062-070>075-081>086-092>097-290400- /O.NEW.KDMX.WI.Y.0010.241029T1400Z-241030T0100Z/ 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 Lake View, Corydon, Humeston, Oskaloosa, Mount Ayr, Wall Lake, Ackley, Audubon, Guthrie Center, Bayard, Grinnell, Waukee, Creston, Sac City, Rockwell City, Iowa Falls, Manson, Fontanelle, Centerville, Des Moines, Eldora, Cedar Falls, Earlham, Carroll, Reinbeck, Odebolt, Dike, Adel, Albia, Bedford, New Market, Denison, Webster City, Gladbrook, Bloomfield, Corning, Ames, Norwalk, Boone, Stuart, Greenfield, Early, Chariton, Leon, Lamoni, Lake City, Knoxville, Seymour, Adair, Ottumwa, Exira, Atlantic, Carlisle, Marshalltown, Wellsburg, Indianola, Osceola, Lenox, Conrad, Tama, Newton, Casey, Winterset, Allerton, Schaller, Panora, Perry, Traer, Dysart, Jefferson, Pomeroy, Toledo, Grundy Center, Pella, Fort Dodge, and Waterloo 256 PM CDT Mon Oct 28 2024 ...WIND ADVISORY IN EFFECT FROM 9 AM TO 8 PM CDT TUESDAY... * WHAT...South winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of central and southern Iowa. * WHEN...From 9 AM to 8 PM CDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Hagenhoff
8 follow-up statements
414 WWUS73 KDMX 290156 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 856 PM CDT Mon Oct 28 2024 IAZ033>039-044>050-057>062-070>075-081>086-092>097-291000- /O.CON.KDMX.WI.Y.0010.241029T1400Z-241030T0100Z/ Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford- Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas- Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska- Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur- Wayne-Appanoose-Davis- Including the cities of Manson, Exira, Oskaloosa, Perry, Indianola, Tama, Eldora, Jefferson, Odebolt, Boone, Early, Marshalltown, Fort Dodge, Bayard, Atlantic, Stuart, Norwalk, Lamoni, Leon, Centerville, Schaller, Reinbeck, Rockwell City, Bloomfield, Conrad, Corning, Albia, Grinnell, Winterset, Knoxville, Pella, Ottumwa, Sac City, Corydon, Humeston, Denison, Panora, Lake View, Wellsburg, Ames, Adel, Greenfield, Dysart, Lenox, Creston, Adair, Traer, Carroll, Chariton, Fontanelle, Gladbrook, Carlisle, Pomeroy, Cedar Falls, Waterloo, Grundy Center, Toledo, Des Moines, Seymour, Allerton, Dike, Newton, Earlham, Osceola, Bedford, Casey, Iowa Falls, Wall Lake, Ackley, Lake City, Waukee, Mount Ayr, Webster City, Audubon, Guthrie Center, and New Market 856 PM CDT Mon Oct 28 2024 ...WIND ADVISORY REMAINS IN EFFECT FROM 9 AM TO 8 PM CDT TUESDAY... * WHAT...South winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of central and southern Iowa. * WHEN...From 9 AM to 8 PM CDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Dodson
770 WWUS73 KDMX 290802 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 302 AM CDT Tue Oct 29 2024 IAZ004>007-015>017-023>028-291615- /O.EXB.KDMX.WI.Y.0010.241029T1400Z-241030T0300Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer- Including the cities of Gilmore City, Garner, Lake Mills, Aplington, Mason City, Emmetsburg, Humboldt, Manly, Shell Rock, Estherville, Forest City, Clear Lake, Northwood, Dumont, Kanawha, Parkersburg, Clarion, Laurens, Allison, Eagle Grove, Greene, Algona, Waverly, Hampton, Britt, Rolfe, Pocahontas, Fonda, Belmond, and Clarksville 302 AM CDT Tue Oct 29 2024 ...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 10 PM CDT THIS EVENING... * WHAT...South winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of northern Iowa. * WHEN...From 9 AM this morning to 10 PM CDT this evening. * IMPACTS...Gusty winds will blow around any unsecured objects, like holiday decorations. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Elevated fire weather conditions are also expected today as any fire that does start would spread rapidly in these strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles on east-west highways. Use extra caution. && $$ IAZ033>039-044>050-057>062-070>075-081>086-092>097-291615- /O.EXT.KDMX.WI.Y.0010.241029T1400Z-241030T1200Z/ Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford- Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas- Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska- Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur- Wayne-Appanoose-Davis- Including the cities of Newton, Earlham, Eldora, Jefferson, Audubon, Rockwell City, Waukee, Lake View, Iowa Falls, Adel, New Market, Allerton, Bayard, Adair, Lake City, Des Moines, Indianola, Greenfield, Dike, Leon, Chariton, Marshalltown, Schaller, Fontanelle, Gladbrook, Manson, Conrad, Wall Lake, Ackley, Winterset, Lamoni, Oskaloosa, Corning, Webster City, Knoxville, Bedford, Waterloo, Atlantic, Boone, Carlisle, Lenox, Wellsburg, Ottumwa, Odebolt, Mount Ayr, Early, Reinbeck, Casey, Corydon, Fort Dodge, Exira, Centerville, Panora, Bloomfield, Stuart, Sac City, Traer, Guthrie Center, Pomeroy, Cedar Falls, Pella, Perry, Grinnell, Norwalk, Tama, Albia, Osceola, Ames, Grundy Center, Carroll, Toledo, Seymour, Humeston, Creston, Dysart, and Denison 302 AM CDT Tue Oct 29 2024 ...WIND ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING TO 7 AM CDT WEDNESDAY... * WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Portions of central and southern Iowa. * WHEN...From 9 AM this morning to 7 AM CDT Wednesday. * IMPACTS...Gusty winds will blow around any unsecured objects, like holiday decorations. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Elevated fire weather conditions are also expected today as any fire that does start would spread rapidly in these strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles on east-west highways. Use extra caution. && $$
640 WWUS73 KDMX 291119 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 619 AM CDT Tue Oct 29 2024 IAZ004>007-015>017-023>028-291930- /O.CON.KDMX.WI.Y.0010.241029T1400Z-241030T0300Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer- Including the cities of Gilmore City, Garner, Lake Mills, Aplington, Mason City, Emmetsburg, Humboldt, Manly, Shell Rock, Estherville, Forest City, Clear Lake, Northwood, Dumont, Kanawha, Parkersburg, Clarion, Laurens, Allison, Eagle Grove, Greene, Algona, Waverly, Hampton, Britt, Rolfe, Pocahontas, Fonda, Belmond, and Clarksville 619 AM CDT Tue Oct 29 2024 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING... * WHAT...South winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Portions of northern Iowa. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Gusty winds will blow around any unsecured objects, like holiday decorations. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Elevated fire weather conditions are also expected today as any fire that does start would spread rapidly in these strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles on east-west highways. Use extra caution. && $$ IAZ033>039-044>050-057>062-070>075-081>086-092>097-291930- /O.CON.KDMX.WI.Y.0010.241029T1400Z-241030T1200Z/ Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford- Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas- Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska- Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur- Wayne-Appanoose-Davis- Including the cities of Newton, Earlham, Eldora, Jefferson, Audubon, Rockwell City, Waukee, Lake View, Iowa Falls, Adel, New Market, Allerton, Bayard, Adair, Lake City, Des Moines, Indianola, Greenfield, Dike, Leon, Chariton, Marshalltown, Schaller, Fontanelle, Gladbrook, Manson, Conrad, Wall Lake, Ackley, Winterset, Lamoni, Oskaloosa, Corning, Webster City, Knoxville, Bedford, Waterloo, Atlantic, Boone, Carlisle, Lenox, Wellsburg, Ottumwa, Odebolt, Mount Ayr, Early, Reinbeck, Casey, Corydon, Fort Dodge, Exira, Centerville, Panora, Bloomfield, Stuart, Sac City, Traer, Guthrie Center, Pomeroy, Cedar Falls, Pella, Perry, Grinnell, Norwalk, Tama, Albia, Osceola, Ames, Grundy Center, Carroll, Toledo, Seymour, Humeston, Creston, Dysart, and Denison 619 AM CDT Tue Oct 29 2024 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT WEDNESDAY... * WHAT...South winds 25 to 35 mph with gusts up to at least 50 mph expected. * WHERE...Portions of central and southern Iowa. * WHEN...Until 7 AM CDT Wednesday. * IMPACTS...Gusty winds will blow around any unsecured objects, like holiday decorations. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Elevated fire weather conditions are also expected today as any fire that does start would spread rapidly in these strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles on east-west highways. Use extra caution. && $$
002 WWUS73 KDMX 291520 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 1020 AM CDT Tue Oct 29 2024 IAZ004>007-015>017-023>028-292330- /O.CON.KDMX.WI.Y.0010.000000T0000Z-241030T0300Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer- Including the cities of Algona, Clarion, Pocahontas, Shell Rock, Hampton, Mason City, Lake Mills, Kanawha, Aplington, Forest City, Fonda, Manly, Gilmore City, Garner, Britt, Northwood, Rolfe, Estherville, Belmond, Emmetsburg, Dumont, Laurens, Humboldt, Clarksville, Waverly, Allison, Greene, Clear Lake, Eagle Grove, and Parkersburg 1020 AM CDT Tue Oct 29 2024 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING... * WHAT...South winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Portions of north central, northeast, and northwest Iowa. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Gusty winds will blow around any unsecured objects, like holiday decorations. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Elevated fire weather conditions are also expected today as any fire that does start would spread rapidly in these strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles on east-west highways. Use extra caution. && $$ IAZ033>039-044>050-057>062-070>075-081>086-092>097-292330- /O.CON.KDMX.WI.Y.0010.000000T0000Z-241030T1200Z/ Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford- Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas- Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska- Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur- Wayne-Appanoose-Davis- Including the cities of Stuart, Iowa Falls, Mount Ayr, Early, Exira, Perry, New Market, Webster City, Humeston, Jefferson, Adel, Traer, Winterset, Corydon, Denison, Ackley, Bedford, Wall Lake, Boone, Waterloo, Creston, Carlisle, Lenox, Adair, Greenfield, Indianola, Tama, Waukee, Seymour, Carroll, Corning, Toledo, Manson, Marshalltown, Ottumwa, Rockwell City, Reinbeck, Albia, Schaller, Cedar Falls, Des Moines, Pella, Wellsburg, Fort Dodge, Ames, Dysart, Gladbrook, Pomeroy, Bayard, Oskaloosa, Centerville, Dike, Lamoni, Lake View, Conrad, Guthrie Center, Earlham, Knoxville, Osceola, Sac City, Lake City, Audubon, Atlantic, Norwalk, Bloomfield, Panora, Casey, Leon, Fontanelle, Allerton, Grinnell, Newton, Odebolt, Eldora, Grundy Center, and Chariton 1020 AM CDT Tue Oct 29 2024 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT WEDNESDAY... * WHAT...South winds 25 to 35 mph with gusts up to at least 50 mph expected. * WHERE...Portions of central, northeast, south central, southeast, southwest, and west central Iowa. * WHEN...Until 7 AM CDT Wednesday. * IMPACTS...Gusty winds will blow around any unsecured objects, like holiday decorations. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Elevated fire weather conditions are also expected today as any fire that does start would spread rapidly in these strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles on east-west highways. Use extra caution. && $$
779 WWUS73 KDMX 292039 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 339 PM CDT Tue Oct 29 2024 IAZ004>007-015>017-023>028-300300- /O.CON.KDMX.WI.Y.0010.000000T0000Z-241030T0300Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer- Including the cities of Algona, Clarion, Pocahontas, Shell Rock, Hampton, Mason City, Lake Mills, Kanawha, Aplington, Forest City, Fonda, Manly, Gilmore City, Garner, Britt, Northwood, Rolfe, Estherville, Belmond, Emmetsburg, Dumont, Laurens, Humboldt, Clarksville, Waverly, Allison, Greene, Clear Lake, Eagle Grove, and Parkersburg 339 PM CDT Tue Oct 29 2024 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING... * WHAT...South winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Portions of north central, northeast, and northwest Iowa. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Gusty winds will blow around any unsecured objects, like holiday decorations. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Elevated fire weather conditions are also expected today as any fire that does start would spread rapidly in these strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles on east-west highways. Use extra caution. && $$ IAZ033>039-044>050-057>062-070>075-081>086-092>097-300445- /O.CON.KDMX.WI.Y.0010.000000T0000Z-241030T1200Z/ Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford- Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas- Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska- Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur- Wayne-Appanoose-Davis- Including the cities of Stuart, Iowa Falls, Mount Ayr, Early, Exira, Perry, New Market, Webster City, Humeston, Jefferson, Adel, Traer, Winterset, Corydon, Denison, Ackley, Bedford, Wall Lake, Boone, Waterloo, Creston, Carlisle, Lenox, Adair, Greenfield, Indianola, Tama, Waukee, Seymour, Carroll, Corning, Toledo, Manson, Marshalltown, Ottumwa, Rockwell City, Reinbeck, Albia, Schaller, Cedar Falls, Des Moines, Pella, Wellsburg, Fort Dodge, Ames, Dysart, Gladbrook, Pomeroy, Bayard, Oskaloosa, Centerville, Dike, Lamoni, Lake View, Conrad, Guthrie Center, Earlham, Knoxville, Osceola, Sac City, Lake City, Audubon, Atlantic, Norwalk, Bloomfield, Panora, Casey, Leon, Fontanelle, Allerton, Grinnell, Newton, Odebolt, Eldora, Grundy Center, and Chariton 339 PM CDT Tue Oct 29 2024 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT WEDNESDAY... * WHAT...South winds 25 to 35 mph with gusts up to at least 50 mph expected. * WHERE...Portions of central, northeast, south central, southeast, southwest, and west central Iowa. * WHEN...Until 7 AM CDT Wednesday. * IMPACTS...Gusty winds will blow around any unsecured objects, like holiday decorations. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Elevated fire weather conditions are also expected today as any fire that does start would spread rapidly in these strong winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles on east-west highways. Use extra caution. && $$
712 WWUS73 KDMX 300236 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 936 PM CDT Tue Oct 29 2024 IAZ004>007-015>017-023>028-300345- /O.EXP.KDMX.WI.Y.0010.000000T0000Z-241030T0300Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer- Including the cities of Pocahontas, Forest City, Shell Rock, Humboldt, Kanawha, Lake Mills, Algona, Dumont, Parkersburg, Northwood, Aplington, Eagle Grove, Estherville, Britt, Hampton, Belmond, Gilmore City, Greene, Emmetsburg, Allison, Laurens, Waverly, Rolfe, Fonda, Manly, Clarksville, Clarion, Garner, Clear Lake, and Mason City 936 PM CDT Tue Oct 29 2024 ...WIND ADVISORY WILL EXPIRE AT 10 PM CDT THIS EVENING... Wind speeds have diminished and thus the advisory will be allowed to expire. Wind gusts of 20 to 30 MPH will still be possible at times through the morning. $$ IAZ033>039-044>050-057>062-070>075-081>086-092>097-301045- /O.CON.KDMX.WI.Y.0010.000000T0000Z-241030T1200Z/ Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford- Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas- Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska- Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur- Wayne-Appanoose-Davis- Including the cities of Oskaloosa, Creston, Humeston, Pomeroy, Sac City, Osceola, Dike, Fort Dodge, Manson, Bloomfield, Centerville, Reinbeck, Guthrie Center, Lamoni, Bedford, Knoxville, New Market, Wall Lake, Conrad, Gladbrook, Des Moines, Waterloo, Toledo, Norwalk, Newton, Cedar Falls, Panora, Perry, Carlisle, Boone, Tama, Atlantic, Iowa Falls, Wellsburg, Eldora, Dysart, Greenfield, Lenox, Mount Ayr, Leon, Carroll, Fontanelle, Stuart, Ottumwa, Seymour, Webster City, Ackley, Schaller, Adair, Marshalltown, Earlham, Albia, Jefferson, Bayard, Odebolt, Ames, Casey, Corning, Grinnell, Allerton, Adel, Traer, Denison, Pella, Winterset, Indianola, Corydon, Grundy Center, Early, Lake View, Exira, Lake City, Waukee, Audubon, Rockwell City, and Chariton 936 PM CDT Tue Oct 29 2024 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT WEDNESDAY... * WHAT...South winds 20 to 25 mph with gusts up to 45 mph. * WHERE...Portions of central and southern Iowa. * WHEN...Until 7 AM CDT Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Dodson
264 WWUS73 KDMX 300847 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 347 AM CDT Wed Oct 30 2024 IAZ033>039-044>050-057>062-070>075-081>086-092>097-301200- /O.CON.KDMX.WI.Y.0010.000000T0000Z-241030T1200Z/ 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 Grundy Center, Guthrie Center, Chariton, Adair, Odebolt, Lenox, New Market, Iowa Falls, Mount Ayr, Osceola, Cedar Falls, Waukee, Corning, Conrad, Gladbrook, Wall Lake, Exira, Bayard, Stuart, Newton, Pella, Corydon, Centerville, Lake View, Webster City, Fontanelle, Bloomfield, Reinbeck, Carroll, Lamoni, Norwalk, Oskaloosa, Ackley, Albia, Seymour, Early, Boone, Ottumwa, Indianola, Wellsburg, Des Moines, Dike, Audubon, Waterloo, Manson, Carlisle, Greenfield, Fort Dodge, Jefferson, Ames, Tama, Grinnell, Leon, Creston, Panora, Lake City, Rockwell City, Eldora, Casey, Denison, Winterset, Traer, Dysart, Toledo, Sac City, Humeston, Schaller, Allerton, Marshalltown, Pomeroy, Adel, Earlham, Perry, Bedford, Atlantic, and Knoxville 347 AM CDT Wed Oct 30 2024 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...South winds 20 to 25 mph with gusts up to 40 mph. * WHERE...Portions of central and southern Iowa. * WHEN...Until 7 AM CDT this morning. * IMPACTS...Gusty winds will blow around any unsecured objects, like holiday decorations. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles on east-west highways. Use extra caution. && $$
821 WWUS73 KDMX 301040 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 540 AM CDT Wed Oct 30 2024 IAZ033>039-044>050-057>062-070>075-081>086-092>097-301145- /O.CAN.KDMX.WI.Y.0010.000000T0000Z-241030T1200Z/ Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford- Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas- Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska- Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur- Wayne-Appanoose-Davis- Including the cities of Bloomfield, Guthrie Center, Ames, Fontanelle, Tama, Centerville, Winterset, Exira, Sac City, Knoxville, Chariton, Humeston, Reinbeck, Corning, Newton, Gladbrook, Dysart, Lake View, Lake City, Iowa Falls, Carroll, Creston, Rockwell City, Allerton, Waterloo, Stuart, Osceola, Lenox, Cedar Falls, Manson, Waukee, Indianola, Audubon, Norwalk, Pella, Traer, Casey, Ottumwa, Dike, Early, Webster City, Adel, Oskaloosa, Toledo, Bedford, Earlham, New Market, Lamoni, Marshalltown, Wellsburg, Wall Lake, Albia, Ackley, Panora, Grundy Center, Conrad, Seymour, Carlisle, Grinnell, Adair, Odebolt, Pomeroy, Mount Ayr, Atlantic, Boone, Eldora, Jefferson, Des Moines, Greenfield, Denison, Leon, Schaller, Corydon, Fort Dodge, Bayard, and Perry 540 AM CDT Wed Oct 30 2024 ...WIND ADVISORY IS CANCELLED... Wind speeds have diminished and thus the advisory has been cancelled. Wind gusts up to 35 MPH remain possible at times through the morning. $$ Cogil
What forecasters said that day
The local office's own words before this wind 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 wind advisory went out at Oct 28, 12:47 PM CDT, 2 hours 9 minutes earlier. Its key messages:
- Unseasonable warmth today and Tuesday with some near-record temperatures in some locations, especially high minimum temperatures Tuesday and Wednesday mornings, see the climate section for details.
- Windy today and even more so Tuesday as winds gust to at least 35-45 mph Tuesday. Elevated fire weather conditions will accompany the strong winds on Tuesday.
- Rain/storm chances return late Tuesday through Wednesday. A few strong to severe storms remain possible.
- Dry Thursday/Friday with more precipitation chances incoming for the weekend.
Area forecast discussion, Oct 28, 12:47 PM CDT, 2 hours 9 minutes before
Area Forecast Discussion
National Weather Service Des Moines IA
1247 PM CDT Mon Oct 28 2024
...Updated for the 18z Aviation Discussion...
.KEY MESSAGES...
- Unseasonable warmth today and Tuesday with some near-record
temperatures in some locations, especially high minimum
temperatures Tuesday and Wednesday mornings, see the climate
section for details.
- Windy today and even more so Tuesday as winds gust to at least
35-45 mph Tuesday. Elevated fire weather conditions will
accompany the strong winds on Tuesday.
- Rain/storm chances return late Tuesday through Wednesday. A
few strong to severe storms remain possible.
- Dry Thursday/Friday with more precipitation chances incoming
for the weekend.
&&
.DISCUSSION...
Issued at 357 AM CDT Mon Oct 28 2024
Dry conditions continue through Tuesday as Iowa remains beneath to
just behind the passing upper ridge. Conditions will be increasingly
warmer and windier through the next two days, however, as the
pressure gradient continues to increase and H850 temperatures surge
towards +15 to +18C on Tuesday. Our warming trend started yesterday
but continues tonight with 3 AM temperatures well above seasonal
levels and in the upper 40s to 50s. The warmer than normal morning
will be followed by highs in the 70s today and the return of some
80s on Tuesday. Cloud cover will dampen the extent of our warming
today and at times on Tuesday with cloud cover already surging into
the area early this morning and expected to persist much of the day
as moisture continues to increase with some clearing Tuesday but
limited as cloud cover increases again ahead of the approaching
system. Despite not realizing the full extent of our warming,
temperatures will still be well above seasonal levels and may make a
run at some temperature records. High temperatures are more out of
reach on Tuesday (10/29) due to being higher overall (than say
today, 10/28), but multiple high minimum temperature records will be
challenged on Tuesday (10/29) and Wednesday (10/30) in the southeast
half of the area. See the climate section for a breakdown of the
record maximum and record high minimum temperatures for select
climate sites today through Wednesday morning.
As mentioned above, our unseasonable warmth will be paired with
windy conditions and the return of at least elevated fire weather
given the ability for fire spread with the strong winds if any fire
were to start so burning is strongly discouraged and caution is
advised when it comes to working in dry agricultural fields.
Relative humidity values themselves will not be near critical
thresholds today (in the 50% range) or Tuesday (35% northwest to
55+% south), but winds will well exceed critical thresholds,
especially Tuesday. Gusts of up to around 30-35+ mph today will
become at least 35-45+ mph Tuesday with higher gusts possible as
forecast soundings remain in good agreement with 40-45 mph winds at
the bottom of the mixed layer in many locations across central Iowa
and nearing 50-60 mph at the top of the mixed layer. Although it
remains unlikely we'll see these highest gusts at the surface,
roughly the southern half of the area continues to have high
probability, >90%, for gusts over 35 mph with all but the northwest
greater than 45% probability for gusts over 35 mph. A wind headline
seems quite likely in a good portion of the area Tuesday but will
let the next shift reevaluate and did not issue anything on this
shift due to the extra lead time. Take the time now to secure any
outdoor holiday decorations before Tuesday!
After our unseasonably warm and windy weather, a slow moving cold
front will bring the return of showers and storms to the forecast
starting after midnight Tuesday night (Wednesday morning) and
continuing through much of the day Wednesday with the front finally
exiting Wednesday night/before daybreak Thursday. Ahead of the
front, dew points surge into the 50s to even 60s in the warm sector
with shear values quite high with a 60+ knot low level jet moving
overhead Tuesday night into Wednesday morning. Our unseasonable
warmth keeps capping in place through much of Tuesday night with the
cap finally eroding with time early Wednesday. This will allow the
coverage of storms to gradually increase with time overnight
Wednesday (Tuesday night) with rain and storm activity maintained by
the strong jet. Instability values remain weaker overall and
decrease with time given the overnight nature, but still could see
some MUCAPE values of up to 500-700 J/kg as storms approach our
area. Some strong to severe storms remain possible with
elevated storms bringing a hail threat the most likely solution
at this point, but will need to continue to watch any storm
formation that could occur along the front. Details will
continue to be evaluated as this period starts to get into the
higher-res guidance window but see the SPC Day 2 Outlook for
additional details on Tuesday night/Wednesday morning and the
SPC Day 3 Outlook for later Wednesday as the front continues to
slowly move through the area providing a second window for
stronger storms south to southeast. Although the rain and storm
chances could spoil some Trick or Treat plans Wednesday night,
QPF values may reach towards 0.5-1" in roughly the southeast
half of the area which would be welcome given our expanding
drought conditions.
Behind the frontal passage early Thursday, cooler weather will
return as highs fall back to the 50s with only gradual warming
towards 60 by the weekend. A passing high pressure will keep
conditions dry Thursday and Friday before precipitation chances
return for the weekend into early next week as the active pattern
resumes which is good news for our ongoing dry conditions, but less
so if you have outdoor plans this weekend. Stay tuned for further
details.
&&
.AVIATION /18Z TAFS THROUGH 18Z TUESDAY/...
Issued at 1239 PM CDT Mon Oct 28 2024
VFR cigs and vsbys expected to prevail through the period. Winds
will be the main story for the period as gusts up to 30kts will
be possible over the next 6 hours. Winds with gusts up to 25kts
possible in the north overnight with more sporadic gusts
possible for KOTM and KDSM. Winds at these sites could reach
40kts on occasion between 06z and 15z with peak windows for
winds being better refined in the upcoming issuances. LLWS up to
50kts to prevail overnight thru 15z for the area with a strong
southerly jet overhead. Winds will remain elevated through the
remainder of the TAF period and beyond.
&&
.CLIMATE...
Issued at 357 AM CDT Mon Oct 28 2024
.Forecast and Record Max Temps for Select Central Iowa Cities...
==================================================================
|Mon 10/28 Previous |Tues 10/29 Previous | Period
| Forecast Record/ | Forecast Record/ | of
City | Max T Year | Max T Year | Record
===================================================================
Des Moines | 77 84/1927 | 81 89/1937 | 1878-
Lamoni | 78 82/1944 | 80 89/1937 | 1897-*
Mason City | 74 77/1945 | 81 83/1937 | 1903-
Ottumwa | 74 84/1927 | 81 91/1937 | 1923-
Waterloo | 74 78/1927 | 83 85/1937 | 1895-
===================================================================
*Incomplete dataset
.Forecast and Record Max Minimum Temps for Select Central Iowa Cities...
==================================================================
|Tues 10/29 Previous |Wed 10/30 Previous | Period
| Forecast Record/ | Forecast Record/ | of
City | Min T Year | Min T Year | Record
===================================================================
Des Moines | 67 66/1946 | 66 63/1901 | 1878-
Mason City | 58 54/1974 | 57 58/1924 | 1903-
Ottumwa | 67 67/1946 | 69 59/1924 | 1923-
Waterloo | 62 59/1901 | 66 60/1927 | 1895-
===================================================================
&&
.DMX WATCHES/WARNINGS/ADVISORIES...
None.
&&
DISCUSSION...KCM
AVIATION...Jimenez
CLIMATE...KCMHazardous weather outlook, Oct 28, 4:33 AM CDT, 10 hours 23 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 433 AM CDT Mon Oct 28 2024 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-290945- 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-Polk-Jasper- Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union- Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne- Appanoose-Davis- 433 AM CDT Mon Oct 28 2024 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Gusty south to southwest winds are expected Tuesday with wind gusts of 45 mph or greater possible. Gusty winds will persist into Wednesday especially over parts of southeast Iowa where gusts to 40 mph could occur. Elevated fire weather conditions may also develop at times, especially on Tuesday, due to the increasing wind and low relative humidity in the afternoon hours. Scattered thunderstorms are likely from late Tuesday night into Wednesday night. A few strong storms may occur during this period. Additional thunderstorm chances arrive next weekend mainly across southern Iowa. Any potential for severe weather will be better assessed in the coming days for next weekend. .SPOTTER INFORMATION STATEMENT... Spotters activation is possible on Wednesday.
Nearby
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.