Ik zou vooral naar dinsdag uitkijken maar ook vannacht in de gaten houden.
D.
SEVERE THUNDERSTORM WATCH NUMBER 6
NWS STORM PREDICTION CENTER NORMAN OK
515 PM CST SUN FEB 8 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
PARTS OF EASTERN NEW MEXICO
PARTS OF TEXAS PANHANDLE AND SOUTHWEST TEXAS
EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 515 PM UNTIL
1000 PM CST.
HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES NORTH
NORTHEAST OF TUCUMCARI NEW MEXICO TO 25 MILES EAST SOUTHEAST OF
WINK TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
DISCUSSION...LINE OF STRONG/SEVERE THUNDERSTORMS DEVELOPING IN A
MARGINALLY UNSTABLE AIRMASS JUST AHEAD OF COLD FRONT ERN NM. WITH
VIGOROUS UPPER TROUGH ROTATING NEWD ACROSS THE AREA THIS
EVENING...THE INITIAL SEVERE THREAT WILL BE LARGE HAIL AND THEN
TRANSITION INTO A WIND DAMAGE THREAT AS SQUALL LINE DEVELOPS AND
MOVES EWD.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM
MOTION VECTOR 22035.
...HALES
© SPC | Gewijzigd: 10 februari 2009, 22:04 uur, door Bronk
Voor vandaag is er inmiddels ook een Slight Risk uitgegeven, rond het gebied waar Nebraska, Iowa, Kansas en Missouri elkaar raken. Voor dinsdag en woensdag is de Slight Risk area enorm groot, vanaf de golf van Mexico tot aan de Great Lakes.
Het meest interesant lijkt dinsdag te worden, in het midden van de Slight Risk area is er 45% kans op zware buien. Het lastige is dat een groot deel van het gebied over Arkansas en ZO Oklahoma ligt, een erg bosrijk een heuvelachtig gebied waar het chasen vrijwel onmogelijk is.
SPC AC 091730
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1130 AM CST MON FEB 09 2009
VALID 101200Z - 111200Z
...THERE IS A MDT RISK OF SVR TSTMS ACROSS PORTIONS OF NERN
TX...SERN OK AND SWRN AR...
...THERE IS A SLGT RISK OF SVR TSTMS FROM TX/OK EAST-NORTHEASTWARD
INTO PORTIONS OF THE LOWER/MID MS VALLEY...
ACTIVE AND WIDESPREAD SEVERE WEATHER IS EXPECTED LATE TUESDAY
AFTERNOON AND NIGHT FROM PORTIONS OF OKLAHOMA/TEXAS EWD INTO PORTIONS OF THE
LOWER/MID VS VALLEY. EVOLUTION OF CONVECTION APPEARS
COMPLICATED...AND THIS PRECLUDES A LARGER MODERATE RISK AREA.
MONITOR TUESDAY/S DAY 1 OUTLOOKS FOR UPDATES ON THIS SITUATION.
STORMS AND SQUALL WILL SPREAD ENEWD INTO AR/LA/SRN MO OVERNIGHT
...AND POSSIBLY AS FAR EAST AS WRN TN/NWRN MS BY DAYBREAK WED.
DESPITE SOME WEAK NOCTURNAL COOLING VERY STRONG KINEMATICS AND UPPER
SYSTEM FAVOR A HIGH POTENTIAL FOR SEVERE WEATHER... INCLUDING LARGE HAIL AND
TORNADOES...TUESDAY NIGHT.
© SPC
Posted By: Reed Timmer
The 12z model runs look even more favorable for tornadoes tomorrow across North Texas and Southern Oklahoma, and further east for the overnight. Based on the recent data, it looks like discrete supercells will develop along the dryline/front near the Wichita Falls area, and expand in coverage as the convection moves east. The best chance for daytime tornadoes will be north and northwest of DFW near the Red River, where the best instability and wind shear will be co-located before 00z. Things will really get insane over night, as a squall line of supercells will surge east into deeper and deeper moisture, and an intensifying low-level jet. Strong tornadoes will be a definitely possibility tomorrow afternoon and overnight across the eastern Southern Plains. The live tracker will be initiated as soon as the chase begins!!!!
© http://www.tornadovideos.net/ | Gewijzigd: 9 februari 2009, 20:15 uur, door Stormchazer
In het midden van het gebied is er 15% kans op een tornado en zelfs 10% op een EF2 tot EF5 tornado.
In het SREF is mooi te zien dat van run tot run de ensembles het vocht steeds verder landinwaarts laten komen. De supercell/tornado parameters geven juist wat zuidelijker aan als interessant gebied (oost Texas). Paris of Mt Pleasant lijkt mij een aardig beginpunt, of misschien iets zuidelijker, Longview. In elk geval de I30 in de buurt houden om richting NW Arkansas in te komen. Eens kijken waar de chasers in het echt terecht komen...
SPC AC 100608
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1208 AM CST TUE FEB 10 2009
VALID 101200Z - 111200Z
...THERE IS A MDT RISK OF SVR TSTMS ACROSS ERN OK...NORTH CENTRAL
AND NERN TX...NWRN LA...AND MUCH OF AR FOR LATE THIS AFTERNOON INTO
TUESDAY NIGHT...
...THERE IS A SLGT RISK OF SVR TSTMS SURROUNDING THE MODERATE RISK
FROM EAST TX/LA NWD TO LOWER MO/MID MS VALLEYS...
...SIGNIFICANT SEVERE WEATHER OUTBREAK INCLUDING TORNADOES AND
DAMAGING WINDS IS EXPECTED TO DEVELOP LATE THIS AFTERNOON AND
PERSIST INTO TUESDAY NIGHT ACROSS THE ERN HALF OF OK...NORTH
CENTRAL-NERN TX INTO NWRN LA AND MUCH OF AR...
GREATER SEVERE WEATHER THREAT IS EXPECTED TO DEVELOP ALONG THE DRY
LINE IN CENTRAL OK TO CENTRAL TX BY LATE AFTERNOON /AFTER 21Z/...
GENERALLY ALONG OR JUST EAST OF THE I-35 CORRIDOR. ADDITIONAL
STRENGTHENING OF THE SLY LLJ /50+ KT/ FROM E TX/LA TO ERN KS/MO WILL
RESULT IN LARGE CURVED HODOGRAPHS AND THE LIKELIHOOD FOR
STRONG/SIGNIFICANT TORNADOES AS STRONG UPPER FORCING WITH THE TROUGH
SPREADS INTO THE SRN PLAINS. IF CONFIDENCE BECOMES GREATER IN THE
TRACK OF THE PRIMARY SURFACE LOW...PORTIONS OF THE MODERATE RISK
AREA MAY NEED TO BE UPGRADED TO A HIGH RISK.
© SPC | Gewijzigd: 10 februari 2009, 12:37 uur, door Stormchazer
"...A SIGNIFICANT SEVERE WEATHER OUTBREAK -- INCLUDING SUPERCELLS
WITH STRONG TORNADOES -- IS EXPECTED THIS AFTERNOON INTO TONIGHT FOR
ERN OK/NE TX...INTO WRN/CENTRAL AR AND NW LA..."
Met nog steeds de mogelijkheid dat het Moderate Risk gebied tot High Risk opgewaardeerd gaat worden.
Als de TVN streams werken... weinig slaap vannacht
En op de achtergrond de Oklahoma City weather radio stream van wunderground.com
LIVE! : http://www.news9.com/global/video/flash/po...mp;rnd=68231719 | Gewijzigd: 10 februari 2009, 21:28 uur, door Stormchazer
LIVE! : http://www.news9.com/global/video/flash/po...mp;rnd=68231719
dankje voor die link
A large wedge tornado is confirmed on the ground as of 7:30 CST moving through Lone Grove, OK, heading toward northwest Ardmore. This is a large and extremely dangerous tornado. Don Giuliano of TVN Stream 3 is on the storm as I type this blog. Stay tuned for updates, and if you live in Ardmore or points to the north and east take cover immediatley!!!! Breaking news: injuries have been reported in the town of Lone Grove, as a trailer park sustained a direct hit there. | Gewijzigd: 11 februari 2009, 03:12 uur, door Stormchazer