Chase 2009 - Day 1 - Central/nw Texas

[Gorky]

Frederick storm is pulsing in strength. Occasional TVS's shown on radar but not been warned yet. Cells down near I20 are fairly descrete but not yet too severe. These are the ones which would be moving up towards Wichita Falls. Tor potential shouldn't be so high here, but one of the more impressive cells of the day has been all the way down near I10 so it seems even the poorer kinematics down south can get things done.

[MAF]

seven now

2223 1 SW BUCK CREEK DELAWARE IA 4232 9136 TORNADO STILL ON GROUND. (DVN)

2249 4 NW VIOLA SEDGWICK KS 3752 9770 (ICT)

[MAF]

8 now, coming in thick and fast

scary one this

2256 5 SW MID CONTINENT AIRP SEDGWICK KS 3761 9750 OBSERVER BELIEVES THE STORM IS 300 FEET WIDE (ICT)

[Cookie]

you beat me to it MAF

thats quite a size

[sammie]

Oohh that big! How sad is it I had to go convert that in to meters before I could understand it...

[MAF]

looks like Sedgwick is getting a lot of nado's hope there is just structural damage

[Cookie]

right im off guys, thanks for the hard work with updates.

hopefully we will get netweather action tomorrow

[Gorky]

New PDS Tornado watch with 90/70 probs is out for NW TX (Including Wichita Falls) up into OK and KS (Includes OKC metro). Very rare that you get such high probabilities on a tornado watch. Frederick storm has an army of chasers on it now and is hooking nicely again.

(For those wondering.... that is a 90% chacne of 2 or more tornadoes in that watch, and a 70% chance of at least one strong tornado >EF2)

[MAF]

New PDS Tornado watch with 90/70 probs is out for NW TX (Including Wichita Falls) up into OK and KS (Includes OKC metro). Very rare that you get such high probabilities on a tornado watch. Frederick storm has an army of chasers on it now and is hooking nicely again. (For those wondering.... that is a 90% chacne of 2 or more tornadoes in that watch, and a 70% chance of at least one strong tornado >EF2)

yep watch No 195

EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 615 PM UNTIL

300 AM CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...

THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE

POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES WEST NORTHWEST OF

EMPORIA KANSAS TO 90 MILES SOUTHWEST OF WICHITA FALLS TEXAS. FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU5).

[MAF]

number 10

2345 5 NNW DICKEYVILLE GRANT WI 4269 9063 SPOTTER WITNESSED BRIEF TOUCH DOWN. (ARX)

[SnowBear]

They drive on the left in the US now? B)

[John Hanrahan]

Hi All. We are currently streaming live video. All's a bit rough since weve literally gotten off the pland and straight out chasing so bear with us. Currently heading for a cell near Wichita falls. Happy days. Ian is alseep in the back of teh jeep!

[NL]

Have to say thats one of the best live streams to date, yes i know reception is good

not to far out of Dallas i expect but nice and clear.... hope no cops are watching the

stream remember ya not on the autobahn..!!!! B)

[MAF]

cheers mate will check it out

current convective outlook

ONGOING SIGNIFICANT SEVERE WEATHER OUTBREAK IS EXPECTED TO PERSIST

WELL AFTER DARK FROM CENTRAL PART OF TX THROUGH MUCH OF OK TO KS.

THREAT FOR LONG-LIVED TORNADIC SUPERCELLS...VERY LARGE/DESTRUCTIVE

HAIL AND DAMAGING WINDS REMAIN POSSIBLE ACROSS THE MODERATE AND HIGH

RISK AREAS INTO THE EARLY MORNING HOURS TONIGHT.

...SRN PLAINS TO CENTRAL/ERN KS AND LOWER MO VALLEY...

HIGH RISK HAS BEEN SHIFTED SLIGHTLY EWD TO HIGHLIGHT THE GREATEST

LIKELIHOOD FOR LONG-LIVED TORNADIC SUPERCELLS THROUGH THIS EVENING

INTO THE EARLY MORNING HOURS TONIGHT...WITH THE ERN EXTENT GENERALLY

RESIDING ALONG THE I-35 CORRIDOR FROM NRN TX TO SRN KS.

[SnowBear]

No one else noticed the cam feed is mirrored? lol

but yup, awesome quality for a mobile feed.

Paul, Nick and all, wishing ya all the best and have a good chase season!! :-D

Edited April 27, 2009 by SnowBear

[tom_f123]

Great stuff, i'll check it out.. good luck guys!

[MAF]

http://radar.weather.gov/radar.php?rid=fdr...111&loop=no

latest radar for Wichita County

Edited April 27, 2009 by MAF

[dave48]

Watching the stream now, great quality, looking forward to seeing some action.

[John Hanrahan]

Watching the stream now, great quality, looking forward to seeing some action.

This is Tom logged on as John. We have a cell which is heading towards us from the south west. If is gets closer I may twist the cam slightly

[NL]

Meso discussion tornado watch continues.

MESOSCALE DISCUSSION 0592

NWS STORM PREDICTION CENTER NORMAN OK

0842 PM CDT SUN APR 26 2009

AREAS AFFECTED...PORTIONS S-CENTRAL/SERN KS...SWRN THROUGH

N-CENTRAL/NWRN OK...NW TX...ERN PANHANDLE OF TX.

CONCERNING...TORNADO WATCH 195...

VALID 270142Z - 270345Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 195 CONTINUES.

POTENTIAL FOR STG TORNADOES STILL EXISTS FOR ANY RELATIVELY

PERSISTENT/DISCRETE SUPERCELLS. ADDITIONAL DEVELOPMENT IS POSSIBLE

S OF EXISTING AREAS OF STG-SVR TSTMS OVER SRN KS AND W OF ACTIVITY

OVER CENTRAL/SWRN OK...AS DRYLINE CONTINUES ITS RETREAT OVER

PANHANDLE AND SOUTH-PLAINS REGIONS.

LOW LEVEL SHEAR IS FCST TO INCREASE ACROSS MOST OF WW AREA DURING

NEXT FEW HOURS...AS STRENGTHENING LLJ BOOSTS HODOGRAPH SIZE...WITH

0-1 KM SRH EXCEEDING 400 J/KG IN MANY LOCALES. INCREASING SBCINH IS

EXPECTED AS SFC DIABATIC COOLING OCCURS...BUT THIS PROCESS WILL BE

GRADUAL GIVEN RICHNESS OF LOW LEVEL THETAE AND MOISTURE

ADVECTION/TRANSPORT OVER THIS REGION. EFFECTIVE LIFTED PARCELS WILL

REMAIN ROOTED AT OR VERY NEAR SFC THROUGH REMAINDER EVENING OVER

MUCH OF THIS REGION. MAIN LIMITING FACTORS HAVE BEEN MESSY

STORM-SCALE STRUCTURES/INTERACTIONS...AND PERHAPS SOMEWHAT

FRAGMENTED INFLOW-LAYER MOISTURE PROFILES. SFC ANALYSIS SHOWS

FAVORABLE MOISTURE ACROSS MUCH OF THIS REGION...WITH DEW POINTS

GENERALLY MID 60S F IN PROSPECTIVE INFLOW LAYER OF MOST CONVECTION.

MOISTURE PROFILE IS SOMEWHAT MORE FRAGMENTED FARTHER UPSTREAM ACROSS

PORTIONS N-CENTRAL TX WHERE DIURNAL MIXING REDUCED DEW POINTS BELOW

60 F IN SOME LOCALES. RIBBONS OF THIS AIR MAY COMPLICATE STORM

STRUCTURES FARTHER N ACROSS CENTRAL OK LATER THIS EVENING.

HOWEVER...BOTH FWD/OUN RAOBS INDICATE BOUNDARY LAYER IS DEEP -- UP

TO AROUND 700 MB -- WITH POTENTIAL FOR HIGHER MIXING RATIO AIR

WITHIN LLJ TO MIX DOWNWARD. ALSO...MOIST BOUNDARY LAYER MAY BE

SLIGHTLY RICHER AND MORE UNIFORMLY HIGH-RH FARTHER W GIVEN GPS PW

AROUND 1.6 INCH AT SPS.

..EDWARDS.. 04/27/2009

[MAF]

cant view the stream on this PC B)

what's your position roughly guys

[tom_f123]

Ohhhhhh this is better nice CG there B)

[NL]

Not 100% sure but i think it could well be this cell throwing

out all those powerful CG's, nice show it is too, but ive got to go

got plasterers in at 8am, oh no!!

[tom_f123]

Loving the lightning action, is this cell heading towards you guys?

[John Hanrahan]

Hi This Is Paul S

We are about 5 Miles East of this cell which has Insane Inflow and Wall Cloud.

No funnel spotted yet!

Paul S