Alert archive / Florida / Special Weather Statements in 2017
Special Weather Statement, NWS Melbourne, FL
NWS Melbourne, FL issued this special weather statement at Jun 18, 2017, 4:26 PM EDT for Lake County, Florida. It was in force for 34 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
- Jun 18, 2017, 4:26 PM EDT (20:26 UTC)
- Expired
- Jun 18, 2017, 5:00 PM EDT
- In force
- 34 min
- Issued by
- NWS Melbourne, FL
County Lake County, FL
The radar
The Melbourne radar (KMLB), 113 km from the middle of the area, began a volume at 20:27 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, 8.4 hours before the alert went out and 108 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
- 1263 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 708 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 40 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 Jun 18, 3:55 PM EDT, 31 minutes earlier.
Area forecast discussion, Jun 18, 3:55 PM EDT, 31 minutes before
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</html>Hazardous weather outlook, Jun 18, 10:28 AM EDT, 5 hours 58 minutes before
Hazardous Weather Outlook National Weather Service Melbourne FL 1028 AM EDT Sun Jun 18 2017 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-190000- 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- 1028 AM EDT Sun Jun 18 2017 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...THIS AFTERNOON AND TONIGHT. .THUNDERSTORM IMPACT... Increasing moisture will lead to high coverage of showers and thunderstorms across central Florida today. Showers and storms initially along the Treasure Coast will lift north to northwest, with increasing development farther north and inland into the afternoon, as the east coast sea breeze develops and pushes inland. Thunderstorm activity will increase in coverage and intensity by mid to late afternoon over the interior counties, as sea and lake breezes interact with thunderstorm outflow boundaries. Storm motion will be to the north-northwest at 10 to 15 MPH. The main storm hazards will be frequent cloud-to-ground lightning strikes, gusty winds up to 40 mph and heavy rainfall. .FLOOD IMPACT... Today's thunderstorms will have a more steady northwest motion than in recent days. However, many areas have received heavy rain in the past few days, leaving the ground less capable of absorbing much more. Any additional heavy rain in these areas today will increase the potential for low lying and poorly drained areas to flood, as well as for water to pond on roadways. .RIP CURRENT IMPACT... A small but persistent and very long period swell will impact the east Florida coast today, resulting in a high rip current threat at area beaches. Check with beach control for local conditions and only swim in the ocean near a lifeguard. .MARINE THUNDERSTORM GUST IMPACT... Scattered to numerous showers and thunderstorms will occur this afternoon, with the activity pushing northwest at 10 to 15 knots. A few stronger storms will have the potential to produce wind gusts over 35 knots as well as frequent lightning strikes over inland lakes. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. Moist conditions will remain in place through the middle of the upcoming week. Little, if any, interruption to the pattern of scattered to numerous afternoon showers and thunderstorms is expected. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today. Rainfall observers are requested to report measured rain amounts of three inches or greater to the National Weather Service in Melbourne. Bragaw/Weitlich
In the hours before
Special weather statement, Jun 18, 3:40 PM EDT, 46 minutes before
Special Weather Statement National Weather Service Melbourne FL 340 PM EDT SUN JUN 18 2017 FLZ045-046-182045- Orange FL-Seminole FL- 340 PM EDT SUN JUN 18 2017 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL SEMINOLE AND CENTRAL ORANGE COUNTIES UNTIL 445 PM EDT... At 338 PM EDT, Doppler radar was tracking a strong thunderstorm over Avalon Park. This storm was nearly stationary. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... Orlando, Oviedo, Winter Springs, and Union Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 2848 8105 2846 8127 2864 8139 2869 8113 TIME...MOT...LOC 1938Z 169DEG 3KT 2854 8117 Weitlich
Special weather statement, Jun 18, 4:26 PM EDT, 0 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 |
|---|---|---|---|---|
| Jun 18, 3:40 PM EDT | Special Weather Statement | MLB | Orange | 65 min |
| Jun 18, 3:52 PM EDT | Areal Flood Advisory | MLB | Orange | 83 min |
| Jun 18, 5:14 PM EDT | Special Weather Statement | MLB | Okeechobee | 31 min |
| Jun 18, 5:46 PM EDT | Areal Flood Advisory | MLB | Okeechobee | 59 min |
Nearby
Special Weather Statements in Florida, 2017Every special weather statement 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.