Alert archive / Florida / Tornado Warnings in 2017

Tornado Warning 14, NWS Melbourne, FL

July 7, 2017Orange County, Florida

NWS Melbourne, FL issued this tornado warning at Jul 7, 2017, 8:24 PM EDT for Orange County, Florida. It was in force for 38 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 7, 2017, 8:24 PM EDT (00:24 UTC)
Expired: Jul 7, 2017, 9:02 PM EDT
In force: 38 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Orange County, FL

The radar

The Melbourne radar (KMLB), 73 km from the middle of the area, began a volume at 00:26 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.

What was reported inside it

Time	Report	Where	Remark
Jul 7, 8:30 PM EDT	TORNADO	6 Ene Buena Ventura Lak, FL	EMERGENCY MANAGER REPORTS A BRIEF TOUCHDOWN OF A TORNADO AT 417 AND LAKE NONA BLVD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 0.4 hours before the alert went out and 81 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 735 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 1381 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 42 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

000 
WFUS52 KMLB 080024
TORMLB
FLC095-080115-
/O.NEW.KMLB.TO.W.0014.170708T0024Z-170708T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Melbourne FL
824 PM EDT FRI JUL 7 2017

The National Weather Service in Melbourne has issued a

* Tornado Warning for...
  South central Orange County in east central Florida...

* Until 915 PM EDT
    
* At 824 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Buena Ventura Lakes, moving northeast at 15 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This tornadic thunderstorm will remain over mainly rural areas of
  south central Orange County, including the following locations:
  Meadow Woods.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 2848 8134 2841 8121 2835 8126 2835 8146
TIME...MOT...LOC 0024Z 218DEG 61KT 2836 8134 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Johnson

1 follow-up statement

246 
WWUS52 KMLB 080102
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
902 PM EDT FRI JUL 7 2017

FLC095-080112-
/O.CAN.KMLB.TO.W.0014.000000T0000Z-170708T0115Z/
Orange FL-
902 PM EDT FRI JUL 7 2017

...THE TORNADO WARNING FOR SOUTH CENTRAL ORANGE COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been cancelled.

LAT...LON 2848 8134 2841 8121 2835 8126 2835 8146
TIME...MOT...LOC 0101Z 218DEG 61KT 2888 8088 

$$

Johnson

The office that day

Everything else NWS Melbourne, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 7, 8:10 PM EDT	Special Weather Statement	MLB	Orange	65 min
Jul 7, 8:27 PM EDT	Tornado Warning	MLB	Osceola	18 min
Jul 7, 9:14 PM EDT	Special Weather Statement	MLB	Seminole	61 min
Jul 8, 12:48 PM EDT	Special Weather Statement	MLB	Lake	27 min
Jul 8, 1:21 PM EDT	Special Weather Statement	MLB	Orange	24 min
Jul 8, 1:56 PM EDT	Special Weather Statement	MLB	Seminole, Volusia	49 min
Jul 8, 3:07 PM EDT	Areal Flood Advisory	MLB	Brevard, Orange, Volusia	83 min
Jul 8, 3:12 PM EDT	Special Weather Statement	MLB	Seminole	33 min
Jul 8, 3:18 PM EDT	Special Marine Warning	MLB		42 min
Jul 8, 3:23 PM EDT	Special Weather Statement	MLB	Seminole	22 min
Jul 8, 3:34 PM EDT	Severe Thunderstorm Warning	MLB	Brevard, Orange, Osceola	56 min
Jul 8, 3:46 PM EDT	Special Weather Statement	MLB	Osceola	59 min
Jul 8, 4:16 PM EDT	Special Marine Warning	MLB		44 min
Jul 8, 4:18 PM EDT	Special Weather Statement	MLB	Brevard	42 min
Jul 8, 4:46 PM EDT	Special Weather Statement	MLB	Osceola	44 min

Nearby

Tornado Warnings in Florida, 2017 Every tornado warning in 2017 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.