Alert archive / South Dakota / Excessive Heat Warnings in 2019
Excessive Heat Warning 1, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this excessive heat warning at Jun 29, 2019, 11:59 AM CDT for 21 counties in South Dakota; 7 counties in Iowa. It took effect at Jun 29, 2019, 1:00 PM CDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 29, 2019, 11:59 AM CDT (16:59 UTC)
- In effect from
- Jun 29, 2019, 1:00 PM CDT
- Expired
- Jun 29, 2019, 9:00 PM CDT
- In force
- 8 hr
- Issued by
- NWS Sioux Falls, SD
All 28 counties
Cherokee County, IA, Ida County, IA, Lyon County, IA, O'Brien County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brule County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD
The radar
The Sioux Falls radar (KFSD), 49 km from the middle of the area, began a volume at 17:01 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 5.0 hours before the alert went out and 189 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
- 2861 J/kg
- Mixed-layer CIN
- -172 J/kg
- Mixed-layer LCL
- 963 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 169 m²/s²
- 0-3 km storm-relative helicity
- 242 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
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 Sioux Falls, SD wrote its last area forecast discussion before this excessive heat warning went out at Jun 29, 6:30 AM CDT, 5 hours 29 minutes earlier.
Area forecast discussion, Jun 29, 6:30 AM CDT, 5 hours 29 minutes before
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</html>Hazardous weather outlook, Jun 29, 4:28 AM CDT, 7 hours 31 minutes before
Hazardous Weather Outlook National Weather Service Sioux Falls SD 428 AM CDT Sat Jun 29 2019 IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ065>071-300930- Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee- Buena Vista-Woodbury-Ida-Dixon-Dakota-Hutchinson-Turner-Lincoln- Bon Homme-Yankton-Union- 428 AM CDT Sat Jun 29 2019 This Hazardous Weather Outlook is for northwest Iowa, west central Iowa, northeast Nebraska and southeast South Dakota. .DAY ONE...Today and tonight. Hot temperatures and high dew points will result in afternoon and early evening heat indices of 100 to 105 degrees across the area. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Hot and muggy conditions will continue on Sunday, with afternoon and early evening heat indices again ranging from 100 to 105 degrees. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MNZ071-072-080-081-089-090-097-098-SDZ038>040-050-052>064-300930- Lincoln-Lyon-Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock-Beadle- Kingsbury-Brookings-Gregory-Jerauld-Sanborn-Miner-Lake-Moody-Brule- Aurora-Davison-Hanson-McCook-Minnehaha-Charles Mix-Douglas- 428 AM CDT Sat Jun 29 2019 This Hazardous Weather Outlook is for southwest Minnesota, central South Dakota, east central South Dakota, south central South Dakota and southeast South Dakota. .DAY ONE...Today and tonight. Hot temperatures and high dew points will result in afternoon and early evening heat indices of 100 to 105 degrees across the area. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Warm and muggy conditions will continue on Sunday, with afternoon and early evening heat indices ranging from 95 to 100 degrees. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 8:40 AM CDT | River Flood Warning | FSD | Union | 18 hr |
| Jun 29, 3:18 PM CDT | Heat Advisory | FSD | Bon Homme, Charles Mix, Clay, Douglas, Gregory, Hanson and 8 more | 30 hr |
Nearby
Excessive Heat Warnings in South Dakota, 2019Excessive Heat Warnings in Iowa, 2019Every excessive heat warning in 2019
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.