Tornado Alley Forecasts, Nowcasting and Reports

**Aragorth** · 04/05/2007, 15:34

Originariamente Scritto da debris74

what?

WOW whats going on, those are some incredible CAPE values!

**debris74** · 04/05/2007, 15:47

Originariamente Scritto da Aragorth

WOW whats going on, those are some incredible CAPE values!

looks like a monster sup will grow up in SW OK after 00z and track NE versus OKC and destroy the airport with a long tracked EF5.

**Aragorth** · 04/05/2007, 16:30

Originariamente Scritto da debris74

looks like a monster sup will grow up in SW OK after 00z and track NE versus OKC and destroy the airport with a long tracked EF5.

that could at least give us a hope we won't land there tomorrow

**debris74** · 04/05/2007, 19:09

raga su col morale, nn fasciamoci la testa prima di essercela rotta! dalle ultime carte e ultimi outlook SPC, credo che questo/i outbreaks nn siano quella cosa storica di cui si sta parlando su ST e che temiamo di perderci. certo ci saranno tornadoes, ma le gocce fredde deludono qsi sempre e questa così statica nn sarà da meno secondo me. IMO 30-40 tornado tra oggi e domani e la maggior parte di notte.

**griffa-petrucci** · 04/05/2007, 19:36

Ragazzi ho appena fatto un nuovo thread nella stanza principale di meteorologia: inviterei tutti a trasferirvi di là per queste 3 settimane.

**debris74** · 04/05/2007, 19:36

prima MCD. inizia la maratona:

MESOSCALE DISCUSSION 0682
NWS STORM PREDICTION CENTER NORMAN OK
0119 PM CDT FRI MAY 04 2007

AREAS AFFECTED...CNTRL/ERN NEB...SE SD...WRN IA

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 041819Z - 041945Z

TRENDS ARE BEING MONITORED FOR AN INCREASING SEVERE THREAT AND THE
POSSIBILITY OF A WW.

A WEAK IMPULSE EMANATING FROM THE AMPLIFIED WESTERN U.S. UPPER
TROUGH IS NOW LIFTING NORTHWARD THROUGH THE CENTRAL HIGH PLAINS...
AND APPEARS TO BE AIDING ONGOING CONVECTIVE DEVELOPMENT NEAR BROKEN
BOW. THIS SEEMS NEAR OR JUST ABOVE A COLD FRONT THAT HAS ALREADY
ADVANCED EASTWARD INTO THE NORTHERN PLAINS...IN ASSOCIATION WITH A
MORE SIGNIFICANT IMPULSE NOW LIFTING INTO SOUTH CENTRAL CANADA.

WEAK INSTABILITY WITH MOST UNSTABLE CAPE AROUND 500 J/KG MAY LIMIT
SEVERE POTENTIAL WITH THIS ACTIVITY...BUT THERMODYNAMIC PROFILES ARE
DESTABILIZING MORE SUBSTANTIALLY EASTWARD ALONG/SOUTH OF A WARM
FRONT...ACROSS MUCH OF CENTRAL AND EASTERN NEBRASKA. DEEPENING
CONVECTION IS ALREADY EVIDENT NEAR THIS BOUNDARY ACROSS CENTRAL INTO
NORTHEAST NEBRASKA. AND...THIS ACTIVITY SEEMS LIKELY TO INTENSIFY
THROUGH THE REMAINDER OF THE AFTERNOON...IN ZONE OF STRONG WARM
ADVECTION AND INCREASING LOW-LEVEL MOISTURE...TO THE NORTH OF
STRONGER CAPPING 700 MB THERMAL RIDGE ACROSS CENTRAL KANSAS.

AT LEAST WEAK CAPPING MAY PERSIST ACROSS CENTRAL/EASTERN NEBRASKA
...BUT THIS SHOULD FAVOR DISCRETE SUPERCELLULAR DEVELOPMENT IN AN
UNSTABLE BOUNDARY LAYER AIR MASS...WHICH LATEST RUC GUIDANCE
INDICATES WILL BE CHARACTERIZED BY CAPE OF 1000-2000 J/KG BY 21-22Z.
COUPLED WITH STRENGTHENING LOW-LEVEL FLOW WITH A PRONOUNCED
EASTERLY COMPONENT...BENEATH 40 KT SOUTH SOUTHWESTERLY 500 MB
FLOW...CONDITIONS ARE EXPECTED TO BECOME INCREASINGLY FAVORABLE FOR
TORNADOES...IN ADDITION TO LARGE HAIL/DAMAGING WIND GUSTS.

..KERR.. 05/04/2007

**Matteo Tornado** · 05/05/2007, 06:29

notizia da una mailing list sulle meteoriti

Greensburg, Kansas was hit with a tornado about an hour ago. There is
seven
miles of damage thrown around highway 54, around the downtown district.
The
hotal/diner is gone, the water tower is gone, the Big Well where the
1,000
lb. Brenham meteorite is/was located was hit....along with all the
buildings
around it. The main farming dealer lot was destroyed. Basically
everything
that was anything in Greensburg was hit.

I hope our Greensburg neighbors make it through the night, and that the
meteorite is intact.

This is pretty bad, glad I don't chase them anymore.