Alert archive / Missouri / Heat Advisories in 2011
Heat Advisory 9, NWS Kansas City, MO
NWS Kansas City, MO issued this heat advisory at Sep 1, 2011, 10:21 AM CDT for 31 counties in Missouri; 7 counties in Kansas. It took effect at Sep 1, 2011, 12:00 PM CDT. It was in force for 28 hr.
The area
The counties it named.
The facts
- Issued
- Sep 1, 2011, 10:21 AM CDT (15:21 UTC)
- In effect from
- Sep 1, 2011, 12:00 PM CDT
- Expired
- Sep 2, 2011, 4:11 PM CDT
- In force
- 28 hr
- Issued by
- NWS Kansas City, MO
All 38 counties
Atchison County, KS, Doniphan County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Adair County, MO, Andrew County, MO, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Grundy County, MO, Henry County, MO, Holt County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Pettis County, MO, Platte County, MO, Putnam County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Schuyler County, MO, Sullivan County, MO
The radar
The Pleasant Hill radar (KEAX), 73 km from the middle of the area, began a volume at 15:22 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
Topeka, KS (KTOP), launched 12:00Z, 3.4 hours before the alert went out and 155 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
- 30 J/kg
- Mixed-layer CIN
- -655 J/kg
- Mixed-layer LCL
- 2735 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 4:45 AM CDT | Red Flag Warning | EAX | Bates, Cass, Clay, Jackson, Platte | 14 hr |
Nearby
Heat Advisories in Missouri, 2011Heat Advisories in Kansas, 2011Every heat advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.