Alert archive / Florida / Areal Flood Advisories in 2021
Areal Flood Advisory 73, NWS Tallahassee, FL
NWS Tallahassee, FL issued this areal flood advisory at Jul 27, 2021, 9:25 AM EDT for Jefferson County, Florida. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Jul 27, 2021, 9:25 AM EDT (13:25 UTC)
- Expired
- Jul 27, 2021, 11:30 AM EDT
- In force
- 2 hr
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
County Jefferson County, FL
The radar
The Tallahassee radar (KTLH), 41 km from the middle of the area, began a volume at 13:28 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
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 1.4 hours before the alert went out and 38 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
- 1615 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 947 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 11 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 Tallahassee, FL wrote its last area forecast discussion before this areal flood advisory went out at Jul 27, 6:11 AM EDT, 3 hours 14 minutes earlier.
Area forecast discussion, Jul 27, 6:11 AM EDT, 3 hours 14 minutes before
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</html>The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 2:39 AM EDT | Special Marine Warning | TAE | 2 hr | |
| Jul 27, 10:48 AM EDT | Areal Flood Advisory | TAE | Madison | 117 min |
| Jul 27, 2:10 PM EDT | Special Weather Statement | TAE | Wakulla | 50 min |
| Jul 27, 2:47 PM EDT | Special Weather Statement | TAE | Calhoun | 43 min |
| Jul 27, 2:56 PM EDT | Special Weather Statement | TAE | Liberty | 34 min |
| Jul 27, 5:48 PM EDT | Areal Flood Advisory | TAE | Baker, Calhoun, Clay, Early, Miller | 117 min |
| Jul 27, 6:14 PM EDT | Special Weather Statement | TAE | Worth | 31 min |
| Jul 27, 6:26 PM EDT | Areal Flood Advisory | TAE | Calhoun, Dougherty, Worth | 109 min |
| Jul 27, 6:49 PM EDT | Flash Flood Warning | TAE | Dougherty, Lee, Worth | 116 min |
| Jul 27, 6:56 PM EDT | Special Weather Statement | TAE | Colquitt, Decatur, Grady, Mitchell | 49 min |
| Jul 27, 7:34 PM EDT | Special Weather Statement | TAE | Brooks, Colquitt, Cook, Lowndes | 56 min |
| Jul 27, 4:47 PM EDT | Special Weather Statement | TAE | Houston | 28 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.