Alert archive / Florida / Areal Flood Advisories in 2021
Areal Flood Advisory 1, NWS Melbourne, FL
NWS Melbourne, FL issued this areal flood advisory at Feb 14, 2021, 7:41 AM EST for Brevard County, Indian River County, Florida. It was in force for 109 min.
The area
The counties it named.
The facts
- Issued
- Feb 14, 2021, 7:41 AM EST (12:41 UTC)
- Expired
- Feb 14, 2021, 9:30 AM EST
- In force
- 109 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
Counties Brevard County, FL, Indian River County, FL
The radar
The Melbourne radar (KMLB), 13 km from the middle of the area, began a volume at 12:41 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
Cape Canaveral, FL (KXMR), launched 12:00Z, 0.7 hours before the alert went out and 54 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
- 535 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 534 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
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 Melbourne, FL wrote its last area forecast discussion before this areal flood advisory went out at Feb 14, 4:45 AM EST, 2 hours 56 minutes earlier.
Area forecast discussion, Feb 14, 4:45 AM EST, 2 hours 56 minutes before
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</html>Hazardous weather outlook, Feb 14, 5:15 AM EST, 2 hours 26 minutes before
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</html>The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 14, 1:56 PM EST | Special Weather Statement | MLB | Lake | 34 min |
| Feb 14, 3:15 PM EST | Special Weather Statement | MLB | Volusia | 30 min |
| Feb 14, 3:28 PM EST | Special Weather Statement | MLB | Volusia | 32 min |
| Feb 14, 3:38 PM EST | Special Marine Warning | MLB | 52 min | |
| Feb 14, 5:16 PM EST | Special Weather Statement | MLB | Seminole | 29 min |
Nearby
Areal Flood Advisories in Florida, 2021Every areal flood advisory in 2021
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.