Alert archive / South Carolina / Heat Advisories in 2011
Heat Advisory 24, NWS Charleston, SC
NWS Charleston, SC issued this heat advisory at Aug 29, 2011, 12:37 PM EDT for Berkeley County, Colleton County, Dorchester County, South Carolina. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Aug 29, 2011, 12:37 PM EDT (16:37 UTC)
- Expired
- Aug 29, 2011, 3:36 PM EDT
- In force
- 3 hr
- Issued by
- NWS Charleston, SC
Counties Berkeley County, SC, Colleton County, SC, Dorchester County, SC
The radar
The Charleston,SC radar (KCLX), 79 km from the middle of the area, began a volume at 16:38 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
Charleston AFB, SC (KCHS), launched 12:00Z, 4.6 hours before the alert went out and 35 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
- 2531 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 638 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
What forecasters said that day
The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Charleston, SC wrote its last area forecast discussion before this heat advisory went out at Aug 29, 11:16 AM EDT, 1 hour 21 minutes earlier.
Area forecast discussion, Aug 29, 11:16 AM EDT, 1 hour 21 minutes before
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</html>The office that day
Everything else NWS Charleston, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 6:09 AM EDT | Dense Fog Advisory | CHS | Bulloch, Candler, Effingham, Jenkins, Screven | 3 hr |
| Aug 29, 2:47 PM EDT | Special Weather Statement | CHS | Charleston | 28 min |
| Aug 29, 3:14 PM EDT | Special Weather Statement | CHS | Berkeley | 31 min |
| Aug 29, 3:53 PM EDT | Special Weather Statement | CHS | Berkeley | 37 min |
| Aug 29, 4:07 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley, Charleston | 33 min |
Nearby
Heat Advisories in South Carolina, 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.