winds aloft (and wind shear)

I was hoping to fly today on across country down to KXSA (Tappahannock in the Richmond area) but the winds are probably a bit too high.
This is what the winds aloft look like now:

DATA BASED ON 010600Z  
VALID 011200Z   FOR USE 0800-1500Z. TEMPS NEG ABV 24000

FT  3000    6000    9000   12000   18000   24000  30000  34000  39000

EMI 2752 2748+02 2757-03 2746-08 2847-23 2855-35 276948 277057 266663

This says that EMI (Westminster) weather winds are aloft are from 270 at 52 knots at 3,000 feet and from 270 at 48 knots at 6,000. That's a big high for our little bug smashers.
The current weather at Dulles (KIAD) shows:

KIAD 011133Z 0112/0218 19008KT P6SM SKC WS020/26040KT

That says that winds at the surface are from 190 at 8 knots (not bad at all). However, it also says that there's a wind shear alert of winds from 260 at 40 knots at 2,000 feet.
I've never actually seen a wind shear alert so it caught my eye right away. Looks like it's a flight sim day for me today.