At present this parameter seems most useful in complex terrain. Some users feel that it also shows a sea breeze front, but the resolution is rather marginal to count on that.
15 =========== ---------- *AT* Ojai, CA
Convergence is such a mystical beast anyway. Hard to hit it just right in our area.
16 =========== Todd Herzog *AT* ADG (Adrian, MI)
I have a hard time finding the convergence within all the "noise" of the plot
32 =========== ---------- *AT* Menomonie, WI
Not well understood
35 =========== bill newsom *AT* Minden, NV
most helpful in route planning
38 =========== Martin Hellman *AT* Hayward, CA
I only came to understand this one in Sept and have found it very useful.
40 =========== ---------- *AT* Boulder, CO
Not thoroughly understood. "Convergence" on the Front Range generally means that area of lift where plains airmass meets dry mountain air.
45 =========== Chris Ruf *AT* LaGrange, GA and Benton/Chattanooga, TN
Unsure if this parameter is relevant to the Southeast region. I have only heard of this out west. I do not understand this topic enough. Please add more detail to the explaination.
46 =========== Gale Winnett *AT* Marion Municipal Airport, Marion, OH
Had not seen reference to this info before.
53 =========== Terence Honikman *AT* Santa Barbara, CA
Have not used it often enough to comment
59 =========== Frank Peel *AT* Fremont, CA
This information, though not very accurate, did indicate potential for "shears" on multiple days they occurred.
62 =========== Matt Gillis *AT* Hollister, CA; Truckee, CA
Good indicator of locations of convergence, considering the resolution.
71 =========== ---------- *AT* Manquin Flight Park, Manquin, VA
The forecast convergence has yet to encroach the local flying area, but it comes close. The model output does a pretty good job of resolving sea breezes from the Atlantic Ocean and the Chesapeake Bay on the Delmarva Peninsula. I fly on the west side of the Bay and see depictions of weaker sea breeze features on BLIPMAP, but the flight park is too far inland, by ~15 miles, to intercept it. This is one of eight graphics I routinely use.
77 =========== ---------- *AT* California City, CA
has resulted in very advantageous course selection on two occasions.
90 =========== ---------- *AT* Williams, CA
Very useful for soaring in the Mendocino's! I find it to be very acurate.
102 =========== ---------- *AT* HDH (HI), TRK (CA), MEV (NV)
Another possible lift source.
117 =========== ---------- *AT* Caddo Mills, TX
135 =========== Harry Fox *AT* Hollister, CA ; Truckee, NV
For the Panoche area, these predict the same thing most every cross-country day -- because there usually is a convergence between the central valley air and the coastal air. Too vague to really help me decide where to find the convergence -- sometimes its on the ridgeline, sometimes to the east, sometimes to the west. I don't think the BLIPMAP convergence prediction has been (or can be?)precise enough to tell me I need to fly 10 miles one way or the other. Haven't had a chance to really test this out in Truckee area yet.
145 =========== Dean Chantiles *AT* Warner Springs, CA
Would like more plain English explanation of what good/bad values are for the convergence map.
167 =========== Walter Rogers *AT* California City, CA
Newer high resolution models will make this an extremely useful product.