Alert archive / Missouri / Heat Advisories in 2011
Heat Advisory 1, NWS Kansas City, MO
NWS Kansas City, MO issued this heat advisory at May 9, 2011, 1:09 PM CDT for Clay County, Jackson County, Platte County, Missouri; Johnson County, Wyandotte County, Kansas. It took effect at May 10, 2011, 12:00 PM CDT. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- May 9, 2011, 1:09 PM CDT (18:09 UTC)
- In effect from
- May 10, 2011, 12:00 PM CDT
- Expired
- May 10, 2011, 2:07 PM CDT
- In force
- 2 hr
- Issued by
- NWS Kansas City, MO
Counties Johnson County, KS, Wyandotte County, KS, Clay County, MO, Jackson County, MO, Platte County, MO
The radar
The Pleasant Hill radar (KEAX), 48 km from the middle of the area, began a volume at 18:14 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
Springfield, MO (KSGF), launched 12:00Z, 6.2 hours before the alert went out and 259 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
- 2841 J/kg
- Mixed-layer CIN
- -312 J/kg
- Mixed-layer LCL
- 896 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 324 m²/s²
- 0-3 km storm-relative helicity
- 421 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 |
|---|---|---|---|---|
| May 9, 5:55 AM CDT | Special Weather Statement | EAX | Adair, Sullivan | 35 min |
| May 9, 6:35 AM CDT | Special Weather Statement | EAX | Macon | 25 min |
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.