B737 flight crew deviate for WX and are changed from ZMA to ZJX control and told to squawk 7700.

Attributes
ACN	514252
Time
Date	200106
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : zma.artcc
State Reference	FL
Altitude	msl single value : 31000
Environment
Flight Conditions	VMC
Weather Elements	Thunderstorm
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zjx.artcc artcc : zma.artcc tower : rfd.tower
Operator	common carrier : air carrier
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : instrument pilot : flight engineer pilot : cfi pilot : atp pilot : commercial
Experience	flight time last 90 days : 190 flight time total : 17000 flight time type : 3000
ASRS Report	514253
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	airspace violation : entry inflight encounter : weather other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance controller : issued advisory flight crew : declared emergency flight crew : exited adverse environment flight crew : returned to intended or assigned course
Supplementary
Problem Areas	Weather
Primary Problem	Weather

Narrative:

Flight mco-iah. After takeoff from mco, we were continually vectored by ZMA until well over the gulf. Eventually cleared by ZMA direct to lev. We set up the FMC for direct and had it (the direct line) displayed on the EFIS/HSI. WX was showing on the route about 100 NM in front. We would 'probably' descend south for WX farther 'down the road.' we initially started a south (left) deviation as we approached the WX. We then noticed a wide (approximately 30 NM) opening between 2 thunderstorm cells. We decided to 'split' the cells as it would be almost exactly on our course line. Just as we split the cells, and just prior to crossing our course line, ZMA advised we were crossing into a 'hot' area. Center then told us to squawk 7700 and talk to ZJX, which we did. 30 seconds later we turned left (south), back to our original course line set up when we were originally cleared direct lev.

Original NASA ASRS Text

Title: B737 FLC DEVIATE FOR WX AND ARE CHANGED FROM ZMA TO ZJX CTL AND TOLD TO SQUAWK 7700.

Narrative: FLT MCO-IAH. AFTER TKOF FROM MCO, WE WERE CONTINUALLY VECTORED BY ZMA UNTIL WELL OVER THE GULF. EVENTUALLY CLRED BY ZMA DIRECT TO LEV. WE SET UP THE FMC FOR DIRECT AND HAD IT (THE DIRECT LINE) DISPLAYED ON THE EFIS/HSI. WX WAS SHOWING ON THE RTE ABOUT 100 NM IN FRONT. WE WOULD 'PROBABLY' DSND S FOR WX FARTHER 'DOWN THE ROAD.' WE INITIALLY STARTED A S (L) DEV AS WE APCHED THE WX. WE THEN NOTICED A WIDE (APPROX 30 NM) OPENING BTWN 2 TSTM CELLS. WE DECIDED TO 'SPLIT' THE CELLS AS IT WOULD BE ALMOST EXACTLY ON OUR COURSE LINE. JUST AS WE SPLIT THE CELLS, AND JUST PRIOR TO XING OUR COURSE LINE, ZMA ADVISED WE WERE XING INTO A 'HOT' AREA. CTR THEN TOLD US TO SQUAWK 7700 AND TALK TO ZJX, WHICH WE DID. 30 SECONDS LATER WE TURNED L (S), BACK TO OUR ORIGINAL COURSE LINE SET UP WHEN WE WERE ORIGINALLY CLRED DIRECT LEV.

Data retrieved from NASA's ASRS site as of July 2007 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.