Alert archive / Florida / Areal Flood Warnings in 2021
Areal Flood Warning 2, NWS Melbourne, FL
NWS Melbourne, FL issued this areal flood warning at Jul 20, 2021, 8:12 PM EDT for 5 counties in Florida. It was in force for 93 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 20, 2021, 8:12 PM EDT (00:12 UTC)
- Expired
- Jul 20, 2021, 9:45 PM EDT
- In force
- 93 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Brevard County, FL, Lake County, FL, Orange County, FL, Seminole County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 95 km from the middle of the area, began a volume at 00:14 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
Cape Canaveral, FL (KXMR), launched 00:00Z, 0.2 hours before the alert went out and 84 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
- 555 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 1024 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -67 m²/s²
- 0-3 km storm-relative helicity
- -52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.4
The text
As transmitted.
857
WGUS42 KMLB 210012
FLWMLB
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Melbourne FL
812 PM EDT Tue Jul 20 2021
FLC009-069-095-117-127-210145-
/O.NEW.KMLB.FA.W.0002.210721T0012Z-210721T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Brevard FL-Lake FL-Orange FL-Seminole FL-Volusia FL-
812 PM EDT Tue Jul 20 2021
The National Weather Service in Melbourne has issued a
* Flood Warning for...
Northwestern Brevard County in east central Florida...
East Central Lake County in east central Florida...
Central Orange County in east central Florida...
Seminole County in east central Florida...
Southeastern Volusia County in east central Florida...
* Until 945 PM EDT.
* At 812 PM EDT, Doppler radar indicated heavy rain due to
thunderstorms. Flooding is ongoing or expected to begin shortly in
the warned area. Between 2 and 4 inches of rain have fallen.
* Some locations that will experience flooding include...
Orlando, Deltona, Sanford, Apopka, Altamonte Springs, Ocoee,
Oviedo, Winter Springs, Winter Park, Casselberry, Maitland, Lake
Mary, Longwood, Lake Jessup, Goldenrod, University Of Central
Florida, Geneva, Chuluota, Azalea Park and College Park.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 2879 8148 2891 8147 2890 8147 2884 8089
2879 8093 2849 8116 2851 8151
$$The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 4:31 PM EDT | Special Marine Warning | MLB | 59 min | |
| Jul 21, 4:50 PM EDT | Special Weather Statement | MLB | Brevard | 55 min |
| Jul 21, 6:23 PM EDT | Special Weather Statement | MLB | Volusia | 67 min |
| Jul 21, 6:43 PM EDT | Special Marine Warning | MLB | 48 min | |
| Jul 21, 7:34 PM EDT | Special Weather Statement | MLB | Saint Lucie | 41 min |
Nearby
Areal Flood Warnings in Florida, 2021Every areal flood warning 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.