May 18

Cooking up the morning forecast to decide the day's target.

Annoying nutmilk fog and low-level clouds in south central Kansas after 3 pm. Makes me more and more uncertain about the significant tornado threat.

Storm chaser convergence in Medicine Lodge, KS.

We begin bailing south to get in position for the Oklahoma target. Here is the anvil of the supercell as we emerge from the southern Kansas fog. The storm is currently producing an incredibly photogenic tornado at this moment.

Amazing silhouette of the supercell's anvil and a separate updraft tower.

Underneath of the storm looking north.

Epic and ominous looking clouds underneath the anvil.

Approaching the tornadic supercell and getting into position for it.  Here is the 6:29 pm radar presentation.

Chase team who traveled with us down from Medicine Lodge takes off.

Mammatus clouds loom overhead in Alva.

You know your in Oklahoma when...

Sharp anvil overhead in Alva, OK while getting gas.

Fascinating NW Oklahoma landscape.

Distant updraft of the tornadic supercell comes into view south of Alva. 

The Doppler On Wheels (DOW) truck seen across the road at our stopping point.

Beautiful updraft and anvil tower high to the southwest.

Crisp edge and underneath of the anvil.

After heading back north to Alva, the supercell can be seen.

Anvil extends eastward as far as the eye can see.

Kinsley, KS tornadic supercell exploding over 100 miles to the north.

8:02 radar screenshot of the initial Arnette cell dying, with a new one behind it developing a tight, deceptive couplet.

Incredible low-precip barber pole structure to the supercell in Freedom, OK.

Epic crisp edge to the edge to the updraft tower as it begins to anvil out.

Anvil stretches as far as the eye can see into the distance, also not its casted shadow. The "conga line" of other storm chasers can be seen in the bottom of the frame.

Low-level Inflow band looking due north.

Some of the other chasers passing us, including Fox Weather.

Barber pole updraft continues as he dusk sets in.

Incredible view upward of the updraft with periodic lightning dancing. I was a little worried that hail would whack me in the face after seeing a random nickel to golf ball stone get spit out.

8:14 pm reflectivity of the supercell.

Closer up view of the LP mesocyclone.

Anvil of new convection going up along the dryline at sunset.

Failed updraft to the south further in Oklahoma.

New convection quickly explodes into a tornadic supercell. Limited on time, I plan to have us meet it in Pratt and then dip.

Extremely rare tornado emergency comes out for the infamous town of Greensburg.

Reflectivity and velocity radar split screen.

Rather anticlimactic view towards the supercell coming into Pratt, KS due to low-level clouds and fog.

Radar presentation of the storm at 10:12 pm with the monster Haviland EF3 on the ground to our west. Although hidden behind fog, anvil and positive lightning activity is wild. Unfortunately, we had to bail on the storm to get home at a good time, but I anticipate another huge tornado once the cell merger is complete.

Lightning from the supercell illuminates the cloudy sky near Turon, KS.

Four-panel radar showing the tornado and its parent supercell at 11:40 pm paralleling our road. Violent monster.

This one tornadic supercell produced 5 different EF3+ tornadoes up to a mile wide!