F11 controller described a potential conflict event between successive departure from runway 18R and...

Attributes
ACN	1032715
Time
Date	201208
Local Time Of Day	1801-2400
Place
Locale Reference	F11.TRACON
State Reference	FL
Aircraft 1
Make Model Name	EMB ERJ 190/195 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Route In Use	Vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	B757-300
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Route In Use	Vectors
Flight Plan	IFR
Person 1
Function	Approach Departure
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy

Narrative:

An E190 departed 18R on a 140 heading for the southeast departure gate. Prior to the E190 crossing the extended center line of 17L; I noticed a departure tag of a B757 off 17L turning to 220 heading for the west departure gate. The reported weather observation for the hour had a broken ceiling of 1;500. The tower was providing 3 miles visual separation for arrivals from the north. I observed the two targets get within 1/2 mile in the departure climb/turn. I trust the tower was using visual separation between the 2 aircraft; but because of the weather conditions and their close proximity to each other; I felt it was a safety issue. Withholding a departure clearance for a couple seconds when using crossing departure courses would ensure separation. Coordination with the departure (east and/or west) controller would alleviate an inquiry of the procedure being used.

Original NASA ASRS Text

Title: F11 Controller described a potential conflict event between successive departure from Runway 18R and Runway 17L; the reporter noting Tower Controllers should insure more separation with successive departures.

Narrative: An E190 departed 18R on a 140 heading for the southeast departure gate. Prior to the E190 crossing the extended center line of 17L; I noticed a departure tag of a B757 off 17L turning to 220 heading for the west departure gate. The reported weather observation for the hour had a broken ceiling of 1;500. The Tower was providing 3 miles visual separation for arrivals from the north. I observed the two targets get within 1/2 mile in the departure climb/turn. I trust the Tower was using visual separation between the 2 aircraft; but because of the weather conditions and their close proximity to each other; I felt it was a safety issue. Withholding a departure clearance for a couple seconds when using crossing departure courses would ensure separation. Coordination with the departure (East and/or West) Controller would alleviate an inquiry of the procedure being used.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

F11 controller described a potential conflict event between successive departure from runway 18R and runway 17L; the reporter noting tower controllers should insure more separation with successive departures.