Alert archive / Florida / Areal Flood Warnings in 2017
Areal Flood Warning 7, NWS Melbourne, FL
NWS Melbourne, FL issued this areal flood warning at Sep 10, 2017, 5:58 PM EDT for 10 counties in Florida. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 10, 2017, 5:58 PM EDT (21:58 UTC)
- Expired
- Sep 11, 2017, 5:45 AM EDT
- In force
- 12 hr
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Brevard County, FL, Indian River County, FL, Lake County, FL, Martin County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Saint Lucie County, FL, Seminole County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 30 km from the middle of the area, began a volume at 21:58 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
Tampa Bay, FL (KTBW), launched 12:00Z, 10.0 hours before the alert went out and 148 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
- 103 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 872 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 186 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 warning 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 warning went out at Sep 10, 12:48 PM EDT, 5 hours 10 minutes earlier.
Area forecast discussion, Sep 10, 12:48 PM EDT, 5 hours 10 minutes before
Area Forecast Discussion
National Weather Service Melbourne FL
1248 PM EDT Sun Sep 10 2017
...Torrential rain with an increasing wind and tornado threat
spreading northward over east central Florida...
.DISCUSSION...
Major Hurricane Irma continues its northward motion this morning,
exhibiting a 20 nautical mile wide eye on KBYX (Key West) radar.
The center is forecast to move up the west coast, placing all of
east central Florida in the northeastern quadrant of the storm.
The large wind field associated with the storm will produce far-
reaching effects, and a period of damaging winds with gusts to
hurricane force is still expected late this afternoon and into
early Monday morning.
The outer rainbands of Irma will continue to spread north and east
this morning, increasing in both coverage and intensity. The CDO
(central dense overcast) will move in late this afternoon and into
tonight, producing a more widespread wind and heavy rainfall
event (with a lower, but non-zero, threat of TC tornadoes).
NOW IS THE TIME TO REMAIN IN YOUR SAFE SHELTER! Residents and visitors
to east central Florida are strongly encouraged to monitor the latest
products issued by your local National Weather Service Office.
PLEASE REFER TO THE LATEST TCV AND HLS PRODUCTS FOR THE LATEST
INFORMATION CONCERNING THREATS AND IMPACTS PERTAINING TO IRMA.
&&
.AVIATION...
Deteriorating conditions expected through the next 24 hours as
Irma closes in on Florida. Multiple TEMPO groups through the
forecast with onshore-moving showers from the Atlantic. On and off
showers will continue early this afternoon with steadier rain
settling in this evening and overnight. MVFR conditions will
deteriorate toward IFR criteria by this evening, especially for
terminals across the Treasure Coast. Winds will continue to
increase through the day as the eye of Irma moves across the
western half of Florida.
&&
.MARINE...
Today-Tonight...Hurricane Warnings remain in effect for the
coastal waters of east Central Florida as Major Hurricane Irma
churns through the Florida Keys and into the southwestern portion
of the peninsula. East to southeast winds will increase to 35-45
knots through the day as wave heights build to 15-25 feet. Winds
will gradually diminish from south to north by later tonight as
seas also slowly subside. Nonetheless, dangerous conditions will
continue through the night with wave heights remaining in the
10-15 foot range by Monday morning.
Monday-Wednesday...Gusty south/southwest winds will diminish in
the wake of Irma through the day on Monday as seas further
subside through midweek.
&&
.PRELIMINARY POINT TEMPS/POPS...
DAB 82 77 86 72 / 100 100 80 20
MCO 79 75 84 73 / 100 100 70 20
MLB 86 79 89 74 / 100 100 70 20
VRB 85 79 90 74 / 100 100 60 20
LEE 80 76 83 73 / 100 100 90 20
SFB 80 77 84 73 / 100 100 70 20
ORL 80 76 84 73 / 100 100 70 20
FPR 86 79 90 74 / 100 100 50 20
&&
.MLB WATCHES/WARNINGS/ADVISORIES...
FL...Flood Watch through Monday evening for Coastal Volusia County-
Indian River-Inland Volusia County-Martin-Northern Brevard
County-Northern Lake County-Okeechobee-Orange-Osceola-
Seminole-Southern Brevard County-Southern Lake County-St.
Lucie.
Tornado Watch until midnight EDT tonight for Coastal Volusia
County-Indian River-Inland Volusia County-Martin-Northern
Brevard County-Northern Lake County-Okeechobee-Orange-
Osceola-Seminole-Southern Brevard County-Southern Lake
County-St. Lucie.
Hurricane Warning for Coastal Volusia County-Indian River-Inland
Volusia County-Martin-Northern Brevard County-Northern Lake
County-Okeechobee-Orange-Osceola-Seminole-Southern Brevard
County-Southern Lake County-St. Lucie.
AM...Tornado Watch until midnight EDT tonight for Flagler Beach to
Volusia-Brevard County Line 0-20 nm-Flagler Beach to
Volusia-Brevard County Line 20-60 nm-Sebastian Inlet to
Jupiter Inlet 0-20 nm-Sebastian Inlet to Jupiter Inlet 20-
60 nm-Volusia-Brevard County Line to Sebastian Inlet 0-20
nm-Volusia-Brevard County Line to Sebastian Inlet 20-60 nm.
Hurricane Warning for Flagler Beach to Volusia-Brevard County
Line 0-20 nm-Flagler Beach to Volusia-Brevard County Line
20-60 nm-Sebastian Inlet to Jupiter Inlet 0-20 nm-Sebastian
Inlet to Jupiter Inlet 20-60 nm-Volusia-Brevard County Line
to Sebastian Inlet 0-20 nm-Volusia-Brevard County Line to
Sebastian Inlet 20-60 nm.
&&
Ulrich/Pendergrast/Combs/Rodriguez/Kelly/Glitto/Blottman/VolkmerIn the hours before
Local storm report, Sep 10, 5:42 PM EDT, 16 minutes before
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</html>Local storm report, Sep 10, 5:58 PM EDT, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
558 PM EDT SUN SEP 10 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0545 PM TROPICAL STORM 5 N EDGEWATER 29.05N 80.90W
09/10/2017 VOLUSIA FL MESONET
WXFLOW SITE XNSB MEASURED WIND GUST OF 19KT/56MPH FROM
ENE. SUSTAINED GUSTS OF 38KT/44MPH.
&&
KRThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 9:34 PM EDT | Tornado Warning | MLB | Saint Lucie | 26 min |
| Sep 9, 9:59 PM EDT | Tornado Warning | MLB | Saint Lucie | 16 min |
| Sep 10, 1:54 AM EDT | Areal Flood Warning | MLB | Saint Lucie | 111 min |
| Sep 10, 3:24 AM EDT | Flash Flood Warning | MLB | Saint Lucie | 111 min |
| Sep 10, 3:49 AM EDT | Tornado Warning | MLB | Indian River, Saint Lucie | 16 min |
| Sep 10, 5:14 AM EDT | Areal Flood Warning | MLB | Indian River, Saint Lucie | 3 hr |
| Sep 10, 5:14 AM EDT | Tornado Warning | MLB | Brevard | 31 min |
| Sep 10, 5:53 AM EDT | Tornado Warning | MLB | Brevard | 22 min |
| Sep 10, 8:05 AM EDT | Areal Flood Warning | MLB | Saint Lucie | 3 hr |
| Sep 10, 8:18 AM EDT | Special Marine Warning | MLB | 42 min | |
| Sep 10, 8:35 AM EDT | Special Marine Warning | MLB | 55 min | |
| Sep 10, 9:19 AM EDT | Tornado Warning | MLB | Brevard | 26 min |
| Sep 10, 9:42 AM EDT | Areal Flood Warning | MLB | Indian River | 3 hr |
| Sep 10, 10:28 AM EDT | Tornado Warning | MLB | Osceola | 32 min |
| Sep 10, 11:01 AM EDT | Tornado Warning | MLB | Brevard | 29 min |
| Sep 10, 11:12 AM EDT | Tornado Warning | MLB | Brevard | 48 min |
| Sep 10, 11:21 AM EDT | Tornado Warning | MLB | Saint Lucie | 24 min |
| Sep 10, 11:40 AM EDT | Tornado Warning | MLB | Okeechobee | 35 min |
| Sep 10, 11:48 AM EDT | Tornado Warning | MLB | Saint Lucie | 27 min |
| Sep 10, 11:58 AM EDT | Tornado Warning | MLB | Brevard, Indian River | 30 min |
| Sep 10, 12:09 PM EDT | Areal Flood Warning | MLB | Brevard, Indian River, Okeechobee, Osceola, Saint Lucie | 3 hr |
| Sep 10, 12:13 PM EDT | Tornado Warning | MLB | Osceola | 32 min |
| Sep 10, 12:41 PM EDT | Tornado Warning | MLB | Martin, Saint Lucie | 34 min |
| Sep 10, 1:27 PM EDT | Tornado Warning | MLB | Brevard, Indian River | 33 min |
| Sep 10, 1:42 PM EDT | Tornado Warning | MLB | Martin, Saint Lucie | 33 min |
| Sep 10, 1:53 PM EDT | Tornado Warning | MLB | Brevard, Indian River | 20 min |
| Sep 10, 2:37 PM EDT | Tornado Warning | MLB | Brevard | 38 min |
| Sep 10, 2:39 PM EDT | Tornado Warning | MLB | Saint Lucie | 51 min |
| Sep 10, 3:12 PM EDT | Tornado Warning | MLB | Indian River, Saint Lucie | 33 min |
| Sep 10, 3:15 PM EDT | Tornado Warning | MLB | Brevard | 30 min |
| Sep 10, 3:16 PM EDT | River Flood Warning | MLB | Osceola | 12 days |
| Sep 10, 3:22 PM EDT | Tornado Warning | MLB | Martin, Saint Lucie | 23 min |
| Sep 10, 3:56 PM EDT | Areal Flood Warning | MLB | Brevard, Indian River, Saint Lucie | 109 min |
| Sep 10, 4:09 PM EDT | Tornado Warning | MLB | Brevard | 66 min |
| Sep 10, 4:14 PM EDT | Tornado Warning | MLB | Indian River | 31 min |
| Sep 10, 4:28 PM EDT | Tornado Warning | MLB | Martin, Saint Lucie | 47 min |
| Sep 10, 4:31 PM EDT | River Flood Warning | MLB | Seminole | 38 hr |
| Sep 10, 4:38 PM EDT | Tornado Warning | MLB | Brevard, Indian River | 22 min |
| Sep 10, 4:42 PM EDT | Tornado Warning | MLB | Brevard, Seminole | 33 min |
| Sep 10, 4:44 PM EDT | Tornado Warning | MLB | Brevard, Seminole, Volusia | 16 min |
| Sep 10, 4:59 PM EDT | Tornado Warning | MLB | Brevard, Indian River | 31 min |
| Sep 10, 5:10 PM EDT | Tornado Warning | MLB | Osceola | 35 min |
| Sep 10, 5:12 PM EDT | Tornado Warning | MLB | Brevard, Seminole, Volusia | 63 min |
| Sep 10, 5:31 PM EDT | Tornado Warning | MLB | Indian River, Saint Lucie | 29 min |
| Sep 10, 5:43 PM EDT | Tornado Warning | MLB | Seminole, Volusia | 32 min |
| Sep 10, 5:45 PM EDT | Tornado Warning | MLB | Volusia | 30 min |
| Sep 10, 5:52 PM EDT | Tornado Warning | MLB | Brevard | 53 min |
| Sep 10, 6:15 PM EDT | Tornado Warning | MLB | Lake, Seminole, Volusia | 30 min |
| Sep 10, 6:34 PM EDT | Tornado Warning | MLB | Orange, Seminole | 26 min |
| Sep 10, 6:39 PM EDT | Tornado Warning | MLB | Orange | 36 min |
| Sep 10, 6:58 PM EDT | Tornado Warning | MLB | Brevard, Volusia | 32 min |
| Sep 10, 7:25 PM EDT | Tornado Warning | MLB | Lake | 35 min |
| Sep 10, 7:48 PM EDT | Flash Flood Warning | MLB | Brevard, Indian River, Osceola | 2 hr |
Nearby
Areal Flood Warnings in Florida, 2017Every areal flood warning in 2017
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.