Alert archive / Florida / Special Weather Statements in 2017
Special Weather Statement, NWS Melbourne, FL
NWS Melbourne, FL issued this special weather statement at Apr 2, 2017, 2:22 PM EDT for Indian River County, Florida. It was in force for 38 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
- Apr 2, 2017, 2:22 PM EDT (18:22 UTC)
- Expired
- Apr 2, 2017, 3:00 PM EDT
- In force
- 38 min
- Issued by
- NWS Melbourne, FL
County Indian River County, FL
The radar
The Melbourne radar (KMLB), 55 km from the middle of the area, began a volume at 18:23 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, 6.4 hours before the alert went out and 97 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
- 1270 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 520 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
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 Apr 2, 11:00 AM EDT, 3 hours 22 minutes earlier.
Area forecast discussion, Apr 2, 11:00 AM EDT, 3 hours 22 minutes before
Area Forecast Discussion National Weather Service Melbourne FL 11 AM EDT Sun Apr 2 2017 .DISCUSSION... Noticeably higher dewpoints this morning producing humid conditions and low clouds as the sea breeze develops. These cloud bases will lift as sfc heating intensifies and shift inland with the sea breeze boundary so coastal communities should become mostly clear except for some cirrus streaming overhead from the west. Current PoP and Temp forecast is in good shape showing the best chance for showers and isolated storms over southern sections, south and west of Orlando. High temps should reach around 90 again over the north interior, lower 80s at the beaches. Today-Tonight (previous)...High pressure building toward the mid- Atlantic coast will shift offshore later tonight. Low level winds will veer to the E/SE, increasing as the day progresses and becoming breezy along the coast, south of the Cape, as the sea breeze kicks in. Models are indicating a rather quick return in moisture in this flow, with 00z GFS showing PW values up to 1.5-1.8" moving into Treasure Coast and southern interior regions. Have therefore increased rain chances 10-20% over portions of the interior, with isolated to scattered showers possible as the sea breeze moves inland. Best rain chances up to 30-40 percent, and the potential for a thunderstorm or two will be across Osceola/Okeechobee counties and near Lake Okeechobee, where greatest moisture will exist and lake/sea breeze interactions are more likely. Greatest rain chances will then shift into west central Florida past sunset, as east coast sea breeze shifts west of the area. Increasing diurnal cu and band of cirrus moving eastward from the Gulf will lead to variable cloudiness across the region. However sufficient daytime heating will exist for temperatures to rise into the low to mid 80s along the coast and upper 80s to around 90 degrees inland. Lows tonight will be mild in the mid to upper 60s. && .AVIATION...Mainly VFR. Patchy MVFR CIGs as sea breeze develops along the coast through 16Z. Then iso-sct SHRA and possible TSRA aft 18Z along the inland moving east coast sea breeze, mostly south and west of the Orlando metro area. VCSH at KISM late in the day looks good and may need to add it to KLEE this evening as remnant convection lifts N/NE from the west side of the peninsula. Easterly winds will become breezy, 15 knots and gusty, along the coast mainly south of the Cape this afternoon. Increasing boundary layer winds will make fog less likely into tonight, but areas of stratus could develop, producing tempo IFR/MVFR cigs. && .MARINE... No significant changes to current coastal waters forecast. Today-Tonight...High pressure near the mid-Atlantic coast will increase E/SE winds over the waters up to 10-15 knots today, and up to 15-20 knots offshore late tonight. Seas will range from 2-4 feet. && .FIRE WEATHER... Today...RH values will not be as low this afternoon as moisture gradually increases from the south. Still, the lowest RH values will be between 35 and 40 percent over the north interior (Orlando north/west). && .PRELIMINARY POINT TEMPS/POPS... DAB 83 67 83 69 / 0 10 40 20 MCO 91 68 87 68 / 10 10 40 20 MLB 84 69 84 70 / 10 10 20 20 VRB 83 69 85 70 / 10 10 20 20 LEE 91 69 86 71 / 10 20 40 20 SFB 90 67 86 69 / 10 10 30 20 ORL 90 68 86 70 / 10 10 30 20 FPR 83 68 85 69 / 10 10 20 10 && .MLB WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. && Kelly/Johnson
Hazardous weather outlook, Apr 2, 9:00 AM EDT, 5 hours 22 minutes before
Hazardous Weather Outlook National Weather Service Melbourne FL 900 AM EDT Sun Apr 2 2017 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-030200- 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- 900 AM EDT Sun Apr 2 2017 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...TODAY AND TONIGHT. .THUNDERSTORM IMPACT... Increasing moisture across south central Florida, may generate showers and possibly a thunderstorm or two over the interior later today. Best chance for this activity will be near Lake Okeechobee and across Osceola and Okeechobee counties as the sea breeze moves inland this afternoon. If any storms do develop, they will have the potential to produce dangerous cloud to ground lightning and gusty winds up to 40 mph. .RIP CURRENT IMPACT... A moderate risk for dangerous rip currents will exist at the beaches of east central Florida today. While rip currents can form at any time, the greatest risk will occur from mid afternoon into early evening due to tidal effects. Always swim within sight of a lifeguard and never swim alone. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. A slight chance of lightning storms is in the forecast on Monday and Tuesday as another weakening frontal boundary approaches from the Gulf of Mexico. Deteriorating boating conditions expected over the coastal waters early this week, ahead of next frontal boundary to approach the area. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today. Weitlich/Johnson
In the hours before
Special weather statement, Apr 2, 2:22 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Melbourne FL
222 PM EDT SUN APR 2 2017
FLZ054-058-021900-
Okeechobee FL-Indian River FL-
222 PM EDT SUN APR 2 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN OKEECHOBEE AND
WESTERN INDIAN RIVER COUNTIES UNTIL 300 PM EDT...
At 222 PM EDT, Doppler radar was tracking a strong thunderstorm over
Fort Drum, moving north northwest at 20 mph.
Winds in excess of 40 mph will be possible with this storm.
Locations impacted include...
Blue Cypress Lake and Fort Drum.
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 2764 8092 2764 8087 2773 8087 2773 8088
2780 8088 2782 8074 2751 8068 2747 8068
2747 8084
TIME...MOT...LOC 1822Z 164DEG 17KT 2755 8081
JohnsonThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 3:14 PM EDT | Small Craft Advisory | MLB | 37 hr | |
| Apr 2, 3:52 PM EDT | Special Weather Statement | MLB | Martin | 38 min |
| Apr 2, 4:28 PM EDT | Special Weather Statement | MLB | Martin | 32 min |
| Apr 2, 5:28 PM EDT | Special Weather Statement | MLB | Orange | 32 min |
| Apr 2, 7:49 PM EDT | Special Weather Statement | MLB | Osceola | 41 min |
| Apr 2, 7:56 PM EDT | Severe Thunderstorm Warning | MLB | Osceola | 49 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.