Alert archive / Florida / Special Weather Statements in 2018
Special Weather Statement, NWS Melbourne, FL
NWS Melbourne, FL issued this special weather statement at Jul 4, 2018, 9:27 PM EDT for Lake County, Florida. It was in force for 48 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 4, 2018, 9:27 PM EDT (01:27 UTC)
- Expired
- Jul 4, 2018, 10:15 PM EDT
- In force
- 48 min
- Issued by
- NWS Melbourne, FL
County Lake County, FL
The radar
The Tampa radar (KTBW), 113 km from the middle of the area, began a volume at 01:26 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, 1.5 hours before the alert went out and 124 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
- 1278 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1001 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jul 4, 4:25 PM EDT, 5 hours 2 minutes earlier.
Area forecast discussion, Jul 4, 4:25 PM EDT, 5 hours 2 minutes before
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</html>Hazardous weather outlook, Jul 4, 5:31 AM EDT, 15 hours 56 minutes before
Hazardous Weather Outlook National Weather Service Melbourne FL 531 AM EDT Wed Jul 4 2018 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-050000- Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia- Brevard County Line to Sebastian Inlet 0-20 nm- Sebastian Inlet to Jupiter Inlet 0-20 nm-Flagler Beach to Volusia- Brevard County Line 20-60 nm-Volusia- Brevard County Line to Sebastian Inlet 20-60 nm- Sebastian Inlet to Jupiter Inlet 20-60 nm-Inland Volusia County- Northern Lake County-Orange-Seminole-Southern Brevard County- Osceola-Indian River-Okeechobee-St. Lucie-Martin- Coastal Volusia County-Southern Lake County- Northern Brevard County- 531 AM EDT Wed Jul 4 2018 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...TODAY AND TONIGHT. .THUNDERSTORM IMPACT... A weather disturbance passing overhead will generate scattered to numerous lightning storms, especially over inland areas this afternoon. A small threat for lightning will exist this morning in Volusia and Brevard County as a few storms over the Atlantic push onshore. A greater threat for storms is expected this afternoon and early this evening mainly west of Interstate 95. A few of today's storms could become strong with wind gusts of 40 to 50 mph, small hail, and frequent lightning the primary threats. Also, torrential downpours of 1 to 2 inches in a short 60- to 90-minute period could lead to temporary road and drainage flooding. Those with outdoor activities planned on this holiday, whether on land or water, should remain weather aware. Seek shelter at the first sight of threatening weather and remember: when thunder roars, go indoors! .MARINE THUNDERSTORM GUST IMPACT... Scattered afternoon storms will be capable of producing wind gusts in excess of 30 knots over inland lakes this afternoon. .RIVER FLOOD IMPACT... The Saint Johns River south of Lake Harney near Geneva remains above Minor Flood Stage. Additional slight rises are expected to continue, keeping the river within Minor Flood Stage into this weekend. A River Flood Warning remains in effect for this area. The Saint Johns River level near Sanford remains above Action Stage. Additional slight rises are expected to continue, but remain within Action Stage at this site through this weekend. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. Scattered to numerous afternoon and evening storms are expected to continue into early next week. The main storm threats will be frequent cloud to ground lightning strikes, urban, river and poor drainage flooding from torrential downpours, and brief gusty winds. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated today. Ulrich
In the hours before
Local storm report, Jul 4, 5:36 PM EDT, 3 hours 51 minutes before
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</html>Local storm report, Jul 4, 6:44 PM EDT, 2 hours 43 minutes before
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</html>Local storm report, Jul 4, 9:15 PM EDT, 12 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 |
|---|---|---|---|---|
| Jul 5, 11:22 AM EDT | Special Weather Statement | MLB | Martin | 23 min |
| Jul 5, 11:25 AM EDT | Special Marine Warning | MLB | 35 min | |
| Jul 5, 12:44 PM EDT | Special Weather Statement | MLB | Orange | 31 min |
| Jul 5, 12:53 PM EDT | Special Weather Statement | MLB | Saint Lucie | 37 min |
| Jul 5, 1:32 PM EDT | Special Weather Statement | MLB | Indian River | 28 min |
| Jul 5, 2:02 PM EDT | Special Weather Statement | MLB | Orange | 28 min |
| Jul 5, 2:10 PM EDT | Special Weather Statement | MLB | Volusia | 35 min |
| Jul 5, 2:31 PM EDT | Special Weather Statement | MLB | Osceola | 29 min |
| Jul 5, 3:06 PM EDT | Special Weather Statement | MLB | Volusia | 39 min |
| Jul 5, 3:27 PM EDT | Special Marine Warning | MLB | 48 min | |
| Jul 5, 3:31 PM EDT | Special Weather Statement | MLB | Indian River | 29 min |
Nearby
Special Weather Statements in Florida, 2018Every special weather statement in 2018
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.