Alert archive / Florida / Special Weather Statements in 2019
Special Weather Statement, NWS Melbourne, FL
NWS Melbourne, FL issued this special weather statement at Dec 17, 2019, 2:49 PM EST for Lake County, Florida. It was in force for 41 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
- Dec 17, 2019, 2:49 PM EST (19:49 UTC)
- Expired
- Dec 17, 2019, 3:30 PM EST
- In force
- 41 min
- Issued by
- NWS Melbourne, FL
County Lake County, FL
The radar
The Melbourne radar (KMLB), 112 km from the middle of the area, began a volume at 19:49 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
Jacksonville, FL (KJAX), launched 12:00Z, 7.8 hours before the alert went out and 204 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
- 845 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 606 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 193 m²/s²
- 0-3 km storm-relative helicity
- 197 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 6.4
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 Dec 17, 9:23 AM EST, 5 hours 26 minutes earlier.
Area forecast discussion, Dec 17, 9:23 AM EST, 5 hours 26 minutes before
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</html>Hazardous weather outlook, Dec 17, 9:40 AM EST, 5 hours 9 minutes before
Hazardous Weather Outlook National Weather Service Melbourne FL 940 AM EST Tue Dec 17 2019 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-180300- 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- Northern Lake-Orange-Seminole-Southern Brevard-Osceola- Indian River-Okeechobee-St. Lucie-Martin-Coastal Volusia- Southern Lake-Northern Brevard- 940 AM EST Tue Dec 17 2019 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...TODAY AND TONIGHT. .THUNDERSTORM IMPACT... Scattered lightning storms are expected to develop during the mid to late afternoon over interior counties ahead of a cold front. The storms will move quickly toward the northeast around 35 mph and will increase in coverage into the evening as the front nears. Cold temperatures aloft and increasing wind fields should produce a few strong storms with gusty winds. One or two storms may produce damaging winds near 60 mph and small hail. An isolated tornado also cannot be ruled out. .FLOOD IMPACT... Locally heavy rains of one to two inches will be possible with storms late this afternoon through this evening. This may cause temporary flooding of some roads especially where previous heavy rains fell last week. .RIP CURRENT IMPACT... Easterly swell will continue to impact the surf zone and produce a Moderate Risk of rip currents at the beaches of east central Florida. Always swim within sight of a lifeguard. .MARINE THUNDERSTORM GUST IMPACT... Scattered showers and lightning storms will develop during the mid to late afternoon and move quickly toward the northeast around 30 mph across inland lakes and eventually across the intracoastal and nearshore Atlantic waters into this evening. A few strong storms will produce wind gusts greater than 35 knots along with dangerous lightning strikes. .WIND AND SEA IMPACT... Small craft should exercise caution for south to southeast winds 15 to 20 knots over the open Atlantic. Seas up to 6 feet well offshore. North winds behind a cold front will increase 20 to 25 knots late tonight over the Atlantic coastal waters of Volusia county. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. Boating and surf zone conditions will deteriorate rapidly on Wednesday, including on the intracoastal waters as North winds 20 to 25 knots overspread the waters. Seas will build 7 to 8 feet nearshore and 9 to 11 feet in the Gulf Stream Wednesday and Wednesday night with only slow improvement through late week. Low pressure is forecast to develop in the Gulf of Mexico this weekend and move across the Florida peninsula. This will bring a threat for additional heavy rains as well as a potential for severe weather. It is too early to know timing and impact details but residents and visitors of east central Florida should stay tuned to later forecasts for this weekend. .SPOTTER INFORMATION STATEMENT... Spotters are requested to monitor the weather and self activate if needed. Combs/Kelly
In the hours before
Special weather statement, Dec 17, 2:49 PM EST, 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 |
|---|---|---|---|---|
| Dec 17, 4:14 AM EST | Small Craft Advisory | MLB | 7 days | |
| Dec 17, 2:56 PM EST | Severe Thunderstorm Warning | MLB | Lake, Orange, Seminole | 34 min |
| Dec 17, 3:31 PM EST | Special Weather Statement | MLB | Seminole | 59 min |
| Dec 17, 3:47 PM EST | Severe Thunderstorm Warning | MLB | Orange, Seminole | 43 min |
| Dec 17, 3:52 PM EST | Special Weather Statement | MLB | Volusia | 53 min |
| Dec 17, 3:57 PM EST | Special Marine Warning | MLB | 3 hr | |
| Dec 17, 4:38 PM EST | Special Weather Statement | MLB | Seminole | 52 min |
| Dec 17, 6:11 PM EST | Special Weather Statement | MLB | Lake | 49 min |
| Dec 17, 6:36 PM EST | Special Weather Statement | MLB | Lake | 54 min |
Nearby
Special Weather Statements in Florida, 2019Every special weather statement in 2019
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.