Alert archive / Florida / Areal Flood Advisories in 2012
Areal Flood Advisory 84, NWS Mobile, AL
NWS Mobile, AL issued this areal flood advisory at Sep 17, 2012, 9:48 AM CDT for Santa Rosa County, Florida. It was in force for 117 min.
The area
The counties it named.
The facts
- Issued
- Sep 17, 2012, 9:48 AM CDT (14:48 UTC)
- Expired
- Sep 17, 2012, 11:45 AM CDT
- In force
- 117 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Santa Rosa County, FL
The radar
The Eglin Afb radar (KEVX), 106 km from the middle of the area, began a volume at 14:51 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
Slidell Radar S, LA (KSIL), launched 12:00Z, 2.8 hours before the alert went out and 262 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
- 1889 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 560 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Mobile, AL wrote its last area forecast discussion before this areal flood advisory went out at Sep 16, 2:57 PM CDT, 18 hours 51 minutes earlier.
Area forecast discussion, Sep 16, 2:57 PM CDT, 18 hours 51 minutes before
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</html>The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 6:04 AM CDT | Small Craft Advisory | MOB | 53 hr | |
| Sep 17, 11:36 AM CDT | Special Marine Warning | MOB | 84 min | |
| Sep 17, 1:16 PM CDT | Special Marine Warning | MOB | 29 min | |
| Sep 17, 2:37 PM CDT | Special Marine Warning | MOB | 83 min | |
| Sep 17, 2:53 PM CDT | Special Marine Warning | MOB | 37 min |
Nearby
Areal Flood Advisories in Florida, 2012Every areal flood advisory in 2012
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.