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Heads up - Severe Weather Texas!
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[quote:Anonymous Coward 37798913:MV8yMTk0NjM0XzM3MjA2MjQ0X0Q2RDYyNjkz] updated SPC SPC AC 101622 DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 1122 AM CDT WED APR 10 2013 VALID 101630Z - 111200Z ...THERE IS A SLGT RISK OF SVR TSTMS THROUGH TONIGHT FROM LA/AR TO THE MID MS/OH VALLEYS...EWD TO THE MID ATLANTIC... ...NRN LA AND CENTRAL/ERN AR TO IL THROUGH TONIGHT... A MIDLEVEL LOW IS EXPECTED TO DEEPEN OVER THE CENTRAL PLAINS TODAY AND THE MID MO VALLEY TONIGHT...AS AN EMBEDDED JET STREAK ROTATES NNEWD FROM W TX TO OK/KS. IN RESPONSE...SLOW DEEPENING OF THE SURFACE LOW IS EXPECTED NEAR STL...WHILE THE TRAILING COLD FRONT MOVES ONLY SLOWLY EWD ACROSS THE OZARK PLATEAU THROUGH THIS AFTERNOON...AND MORE QUICKLY SEWD TOWARD THE TX COAST. IN ADVANCE OF THE FRONT...A PLUME OF RICH LOW-LEVEL MOISTURE ORIGINATING FROM THE NW CARIBBEAN HAS SPREAD INLAND ACROSS LA/AR...WHERE BOUNDARY LAYER DEWPOINTS HAVE REACHED THE UPPER 60S TO NEAR 70 F. THIS MOISTENING HAS OCCURRED BENEATH A REMNANT EML PLUME WITH MIDLEVEL LAPSE RATES OF 7.5-8.5 C/KM. VISIBLE IMAGERY SHOWS SOME CLOUD BREAKS ACROSS MUCH OF AR...WHICH WILL ALLOW SURFACE TEMPERATURES TO WARM WELL INTO THE 70S THIS AFTERNOON...AND SUPPORT MLCAPE NEAR 2500 J/KG. ALSO...THE SLY LLJ WILL INCREASE GRADUALLY THIS AFTERNOON THROUGH EARLY TONIGHT FROM CENTRAL/ERN AR TO IL/INDIANA...IN RESPONSE TO THE DEEPENING MID MS VALLEY LOW. LIKEWISE...MID-UPPER SWLY FLOW WILL INCREASE WITH THE GLANCING INFLUENCE OF THE JET STREAK EJECTING NNEWD OVER ERN OK/KS. THE NET RESULT WILL BE AN ENVIRONMENT WITH MODERATE INSTABILITY AND INCREASINGLY FAVORABLE LOW-LEVEL AND DEEP-LAYER VERTICAL SHEAR FOR SUPERCELLS /EFFECTIVE SRH APPROACHING 300 M2 PER S2 AND EFFECTIVE BULK SHEAR NEAR 50 KT/. GIVEN THE RELATIVELY SLOW MOTION OF THE COLD FRONT ACROSS WRN AR THIS AFTERNOON...AND SUBSTANTIALLY RICHER LOW-LEVEL MOISTURE ACROSS LA/AR COMPARED TO AREAS FARTHER W IN PREVIOUS DAYS...THE RISK FOR SUPERCELLS BOTH ALONG AND A LITTLE AHEAD OF THE COLD FRONT WILL BE GREATER COMPARED TO PREVIOUS DAYS. THIS WILL SUPPORT AN INCREASING RISK FOR A FEW TORNADOES LATER THIS AFTERNOON INTO THIS EVENING ACROSS CENTRAL/ERN AR INTO SE MO...AND POTENTIALLY AN ISOLATED STRONG TORNADO IF A SEMI-DISCRETE STORM CAN BE MAINTAINED FOR A COUPLE OF HOURS. LARGE HAIL AND DAMAGING WINDS CAN ALSO BE EXPECTED WITH WHAT SHOULD EVOLVE INTO A SOMEWHAT SOLID FRONTAL SQUALL LINE BY EARLY TONIGHT. THE ERN EXTENT OF THE SEVERE RISK OVERNIGHT WILL BE LIMITED BY SLOW EWD MOTION OF THE FRONT...AND BY WEAKENING INSTABILITY ACROSS ERN MS/AL INTO MIDDLE TN WHERE LOW-LEVEL IS MORE LIMITED BY TRAJECTORIES FROM WITHIN THE LINGERING RIDGE OVER THE SE STATES. ...OH VALLEY TO MID ATLANTIC THROUGH THIS EVENING... A FEW SMALL CLUSTERS OF THUNDERSTORMS HAVE ALREADY DEVELOPED ACROSS OH AS OF LATE MORNING...AND THIS CONVECTION SHOULD PERSIST THROUGH THE AFTERNOON WHILE SPREADING EWD INTO PA. INSTABILITY IS NOT PARTICULARLY STRONG...WITH THE GREATEST LOW-LEVEL MOISTURE FEED INTO THE OH VALLEY FROM THE SW...BUT STRONG SURFACE HEATING AND STEEP LOW-LEVEL LAPSE RATES EXTEND EWD TO THE MID ATLANTIC COAST. GIVEN THE LARGELY UNIDIRECTIONAL WLY WIND PROFILES WITH UP TO 50 KT FLOW AROUND 500 MB...ISOLATED DAMAGING GUSTS WILL BE POSSIBLE...AS WELL AS MARGINALLY SEVERE HAIL W OF THE APPALACHIANS. ..THOMPSON/MOSIER.. 04/10/2013 CLICK TO GET WUUS01 PTSDY1 PRODUCT NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z CURRENT UTC TIME: 1635Z (12:35PM), RELOAD THIS PAGE TO UPDATE THE TIME [/quote]
Original Message
I began this thread to warn folks about the first big storm of the spring season. Rather than start a new thread every time we have a threat of severe weather, I would like to keep this thread running as a sort of a GLP "go to" weather place for everyone.
If we keep weather alerts in one place, weather watchers, helptards, and anyone else who is interested, will have a virtual home to share links, info, and discuss whatever mother nature may throw our way.
I will update the thread daily and keep weather related links on front page.
Welcome to GLP Weather Report
Here are a few links that may be helpful to keep an eye on the weather in your area.
Individual state weather info:
[
link to www.nws.noaa.gov
]
Severe weather warnings:
[
link to kamala.cod.edu
]
[
link to twitter.com (secure)
]
[
link to www.swiftwx.com
]
Radar and maps:
[
link to classic.wunderground.com
]
[
link to imapweather.com
]
[
link to www.intellicast.com
]
[
link to radar.weather.gov
]
[
link to www.noaawatch.gov
]
Storm Chaser video links:
[
link to www.chasertv.com
]
[
link to www.tornadoalleylive.com
]
Assorted weather related sites:
[
link to www.stormreports.org
]
[
link to hoot.metr.ou.edu
]
[
link to www.mesonet.org
]
Radio Feeds:
[
link to www.radioreference.com
]
[
link to www.wunderground.com
]
Wind Map:
[
link to hint.fm
]
Hurricane Info:
[
link to www.nhc.noaa.gov
]
[
link to www.hurricanehunters.com
]
[
link to passageweather.com
]
[
link to www.tropicwx.com
]
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