jaxjagman Posted February 20, 2014 Share Posted February 20, 2014 https://twitter.com/Tornadochaser91/status/436315884156502016/photo/1 Link to comment Share on other sites More sharing options...
Tornado Girl Posted February 20, 2014 Share Posted February 20, 2014 Sorry,meant to put Tennessee Valley.If a mod can change it please do I think you can edit it...because you started the thread. Link to comment Share on other sites More sharing options...
jaxjagman Posted February 20, 2014 Author Share Posted February 20, 2014 I think you can edit it...because you started the thread. Thanks,found it Link to comment Share on other sites More sharing options...
BamaChemE Posted February 20, 2014 Share Posted February 20, 2014 That your twitter handle? Link to comment Share on other sites More sharing options...
jaxjagman Posted February 20, 2014 Author Share Posted February 20, 2014 That your twitter handle? Nah,it was posted on my facebook page Link to comment Share on other sites More sharing options...
jaxjagman Posted February 20, 2014 Author Share Posted February 20, 2014 DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 1158 PM CST WED FEB 19 2014 VALID 201200Z - 211200Z ...THERE IS A SLGT RISK OF SVR TSTMS PORTIONS OH AND TN VALLEY REGIONS TO CENTRAL GULF COAST... ...SYNOPSIS... PROGRESSIVE UPPER-AIR PATTERN IS FCST ACROSS CONUS THIS PERIOD...FEATURING INITIALLY DISTINCT SHORTWAVE TROUGHS NOW ANALYZED OVER WRN DAKOTAS AND SRN CO/NRN NM REGION. SRN PORTION OF MID-UPPER-LEVEL VORTICITY FIELD ASSOCIATED WITH NRN-PLAINS PERTURBATION IS EXPECTED TO LINK WITH AMPLIFYING SRN-ROCKIES SYSTEM WHILE MOVING EWD ACROSS MAINLY CENTRAL/NRN PLAINS. COMBINED TROUGH SHOULD REACH FROM OZARKS TO UPPER MS VALLEY BY 21/06Z. BY THAT TIME...ACCOMPANYING/CLOSED 500-MB LOW SHOULD FORM OVER WI. BY END OF PERIOD...500-MB LOW SHOULD DEEPEN AND MOVE NEWD TO NNEWD ACROSS CENTRAL/WRN UPPER MI...WITH TROUGH ARCHING SEWD OVER WRN LOWER MI AND INDIANA THEN SSWWD ACROSS WRN TN. 250-MB JET OF 110-120 KT WAS ANALYZED AT 21/00Z OVER CO/NM...AND THIS SPEED MAX SHOULD EXPAND/ELONGATE AHEAD OF COMBINED PERTURBATION THROUGH PERIOD...WHILE GRADUALLY BECOMING MORE MERIDIONAL. AT SFC...CYCLONE NOW NEAR CO/KS BORDER SHOULD CONTINUE TO DEEPEN AS IT TRAVELS FROM ERN KS TO SWRN WI DURING 20/12-21/00Z TIME FRAME. AT THAT TIME...COLD FRONT SHOULD EXTEND IN ARC FROM LOW ACROSS CENTRAL-ERN IL...EXTREME WRN KY...SERN AR...AND MIDDLE-UPPER COASTAL PLAIN OF TX. ...OH AND TN VALLEY REGIONS TO CENTRAL GULF COAST... SCATTERED-NUMEROUS TSTMS IN BANDS SHOULD POSE PRIMARY THREAT OF DAMAGING GUSTS...A FEW OF WHICH MAY REACH 65-KT/SIGNIFICANT-SVR CRITERIA. TORNADO RISK EXISTS BUT IS SECONDARY TO DAMAGING TSTM WIND IN TERMS OF COVERAGE...DURATION AND NUMBER OF EVENTS PROBABLE. ALTHOUGH LOW-LEVEL AND DEEP SHEAR EACH WILL BE FAVORABLE FOR SUPERCELLS...LIKELY DOMINANCE OF LINEAR STORM MODE INDICATES PREDOMINANT SOURCE OF TORNADO RISK WILL BE QLCS-TYPE SPINUPS AND EMBEDDED MESOCIRCULATIONS ASSOCIATED WITH LEWPS AND SMALL BOWS. TORNADOES WITH SUCH REGIMES TEND BE RELATIVELY SHORT-LIVED AND SMALL...BUT ALSO...FAST-MOVING AND RAIN-WRAPPED. THIN BAND OF CONVECTION MAY DEVELOP DURING AFTN IN ZONE OF STRONG FORCING ALONG SFC COLD FRONT...HOWEVER PRIMARY SVR-PRODUCING SWATH IS LIKELY TO ARISE IN SW-NE ORIENTED/PREFRONTAL CONVERGENCE ZONE FROM LATE AFTN INTO EARLY OVERNIGHT HOURS. 50-60 KT EFFECTIVE SHEAR MAGNITUDES WILL BE COMMON WHEREVER SFC-BASED INFLOW EXISTS WITH MAIN SQUALL LINE. 60S SFC DEW POINTS MAY REACH TO NEAR OH RIVER IN NARROW CORRIDOR PRIOR TO TSTMS...BUT RICHEST MOISTURE SHOULD RESIDE FROM TN SWD. MLCAPE SHOULD REMAIN BELOW 1000 J/KG OVER MOST OF OUTLOOK AREA BECAUSE OF WEAK LAPSE RATES ALOFT...THOUGH POCKETS OF PRECONVECTIVE DIABATIC HEATING OVER GULF COAST STATES CAN BOOST VALUES HIGHER ON MESOBETA SCALE. AS TSTM REGIME MOVES EWD ACROSS KY/TN/AL OVERNIGHT...IT WILL OUTPACE FAVORABLE DESTABILIZATION/WAA FROM N-S...AND MOVE INTO PROGRESSIVELY LOWER-CAPE AIR WITH EWD EXTENT. NET RESULT SHOULD BE DECREASE IN OVERALL SVR POTENTIAL FROM NW-SE AND WITH TIME. HOWEVER...BECAUSE OF GREATER MOISTURE PREVALENT CLOSER TO GULF COAST...SVR RISK MAY LAST FOR MUCH OF OVERNIGHT HOURS AS CONVECTION CROSSES TN VALLEY AND GULF-COAST STATES. FARTHER N OVER NRN PORTIONS INDIANA/OH AND LOWER MI...SVR WIND POTENTIAL DIMINISHES DUE TO PROGRESSIVELY WEAKER BUOYANCY. ALSO...LOSS OF SFC-BASED PARCELS IS EXPECTED IN RELATION TO PROGRESSIVELY DEEPER STABLE LAYER WITH NWD EXTENT...ATOP SNOW PACK. MEANWHILE...EVEN FOR THOSE STG/NEAR-SVR GUSTS THAT CAN PENETRATE TO SFC...SUBSTANTIAL TREE DAMAGE/TOPPLING ALSO BECOMES LESS PROBABLE WITH NWD EXTENT DUE TO FROZEN GROUND AND LACK OF LEAVES. ...MO-IA-IL REGION...MORNING... EXTENSION OF STG LOW-LEVEL WAA REGIME FROM PRIOR PERIOD WILL SUPPORT CARRY-OVER POTENTIAL FOR SCATTERED TSTMS IN CLUSTERS ACROSS THIS REGION. ACTIVITY WILL BE SUPPORTED BY ISENTROPIC LIFT TO LFC...AMIDST ELEVATED MUCAPE 500-800 J/KG AND 35-45 KT EFFECTIVE SHEAR MAGNITUDES FROM ASSORTED FCST SOUNDINGS. ISOLATED SVR HAIL MAY OCCUR WITH THIS ACTIVITY DURING FIRST FEW HOURS OF PERIOD BEFORE IT MOVES NNEWD AWAY FROM MOST FAVORABLE ELEVATED INSTABILITY. ..EDWARDS/GUYER.. 02/20/2014 Link to comment Share on other sites More sharing options...
jaxjagman Posted February 20, 2014 Author Share Posted February 20, 2014 DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0613 AM CST THU FEB 20 2014 VALID 201300Z - 211200Z ...THERE IS A MDT RISK OF SVR TSTMS LATE THIS AFTERNOON INTO TONIGHT FOR A SMALL PART OF SRN IND...WRN AND CNTRL KY...WRN AND MIDDLE TN...NRN MS AND FAR NWRN AL... ...THERE IS A SLGT RISK OF SVR TSTMS FROM THE OH VALLEY TO CNTRL GULF COAST... --POTENTIALLY WIDESPREAD DAMAGING WIND EVENT OVER PARTS OF THE OH AND TN VALLEYS INTO THE LOWER MS VALLEY AND CNTRL GULF STATES LATE THIS AFTERNOON THROUGH TONIGHT-- ...SYNOPSIS... AN INITIALLY NEUTRAL-TILTED SHORT-WAVE TROUGH OVER THE HIGH PLAINS AS OF 12Z WILL ASSUME AN INCREASING NEGATIVE TILT AS A 100+ KT MID LEVEL JET STREAK OVER THE SRN PLAINS ROUNDS THE TROUGH BASE AND SUBSEQUENTLY DEVELOPS NEWD INTO THE GREAT LAKES AND OH VALLEY BY 21/12Z. THIS PROCESS WILL PROMOTE SUBSTANTIAL INTENSIFICATION OF THE OVERALL SYNOPTIC SYSTEM...LEADING TO A CLOSED MID LEVEL CIRCULATION OVER THE UPPER MIDWEST AND A CORRIDOR OF 12-HR HEIGHT FALLS EXCEEDING 100-200 M AT 500 MB ALONG THE SYSTEM TRACK. AT THE SURFACE...LOW PRESSURE OVER CNTRL KS WILL UNDERGO SIGNIFICANT DEEPENING LATER TODAY THROUGH TONIGHT WHILE DEVELOPING NEWD TO THE VICINITY OF THE WI-IL BORDER BY 21/00Z AND THEN LAKE SUPERIOR BY 21/12Z WHERE IT WILL HAVE BECOME DEEPLY OCCLUDED. MEANWHILE...THE TRAILING COLD FRONT IS EXPECTED TO STRENGTHEN MARKEDLY LATER TODAY FROM THE MID MS VALLEY TO ARKLATEX BEFORE SWEEPING EWD THROUGH THE OH AND TN VALLEYS...AS WELL AS THE WRN/CNTRL GULF COAST STATES. THE MIGRATORY LOW AND COLD FRONT WILL BE PRECEDED BY A W-E-ORIENTED WARM FRONT WHICH WILL DEVELOP NWD THROUGH THE OH VALLEY. THE POLEWARD ADVANCEMENT OF THIS BOUNDARY WILL LIKELY BE SLOWED OWING TO THE INFLUENCE OF SIGNIFICANT SNOW COVER TO THE NORTH OF THE I-70 CORRIDOR. ...MID/LOWER MS VALLEY EWD THROUGH THE OH/TN VALLEYS AND CNTRL GULF STATES THIS AFTERNOON THROUGH TONIGHT... THE CYCLOGENETIC CHARACTER OF THE SYNOPTIC SYSTEM WILL PROMOTE A MARKED INCREASE IN THE BREADTH AND INTENSITY OF WIND MAXIMA...BOTH IN THE LOW LEVELS AND ALOFT. THIS IN TURN WILL HASTEN THE POLEWARD TRANSPORT OF A PARTIALLY MODIFIED AIR MASS BENEATH A RESIDUAL STEEP MIDLEVEL LAPSE RATE PLUME...AS WELL AS ENHANCE DEEP-LAYER SHEAR ACROSS THE EXPANDING WARM SECTOR. LATEST MODEL GUIDANCE REMAINS CONSISTENT WITH EARLIER DATA IN SUGGESTING THE GRADUAL DEEPENING OF A PRE-FRONTAL CONFLUENCE BAND OF CONVECTION INTO TSTMS BY MID TO LATE AFTERNOON FROM NEAR THE OH-MS-RIVER CONFLUENCE SWWD TO AT LEAST N-CNTRL LA. AT THE SAME TIME...LOW-TOPPED TSTMS ARE EXPECTED TO EVOLVE UPSTREAM ALONG THE COLD FRONT FROM E-CNTRL MO/W-CNTRL IL TO NWRN LA...AS THE FRONTOGENETICALLY FORCED CIRCULATION IN THE LOW-LEVELS IS COUPLED WITH THE MID TO UPPER-LEVEL HEIGHT FALLS/DCVA PRECEDING THE MIDLEVEL TROUGH. CONSENSUS OF CONVECTION-ALLOWING MODEL DATA INDICATE A RAPID TRANSITION TO A FAST-MOVING SQUALL LINE/QLCS AS THE TWO INCIPIENT CONVECTIVE BANDS MERGE. GIVEN A MOIST AND AT LEAST MODESTLY UNSTABLE AIR MASS /I.E. MLCAPE OF 500-750 J PER KG/ AND STRONG ENVIRONMENTAL SHEAR /I.E. EFFECTIVE BULK SHEAR OF 50-70 KT AND EFFECTIVE SRH OF 200-400 M2 PER S2/...THE POTENTIAL WILL EXIST FOR EMBEDDED BOWING/LEWP STRUCTURES CAPABLE OF WIDESPREAD DAMAGING WINDS AND A FEW MESOVORTEX-RELATED TORNADOES. THIS IS ESPECIALLY THE CASE FROM WRN/CNTRL KY INTO NRN MS/NWRN AL WHERE THE MOST FAVORABLE OVERLAP OF FORCING FOR ASCENT...INSTABILITY AND VERTICAL SHEAR WILL EXIST. EXPECT THE SQUALL LINE /AND ASSOCIATED SEVERE RISK/ TO RAPIDLY ADVANCE THROUGH THE OH/TN VALLEYS TONIGHT WITH THE CONVECTIVE BAND GRADUALLY WEAKENING AS IT REACHES THE CNTRL APPALACHIANS BY 21/12Z. FARTHER SOUTH ACROSS MS/AL/SERN LA...THE STORMS WILL PROGRESS MORE SLOWLY WITH THE LINE POSSIBLY BREAKING INTO SEGMENTS OR MORE DISCRETE CELLS. GIVEN THE GRADUAL INFLUX OF A MORE MOIST BOUNDARY LAYER INTO THIS REGION...AN INCREASE IN SUPERCELLULAR TORNADO POTENTIAL IS POSSIBLE AFTER 03Z OVER ERN MS INTO WRN AL. AS SUCH...FIVE PERCENT TORNADO PROBABILITIES HAVE BEEN ADJUSTED EWD TO ACCOMMODATE THIS RISK. ...LOWER MO/MID MS VALLEYS TODAY... A CLUSTER OF STRONG TO SEVERE ELEVATED TSTMS IS IN PROGRESS AS OF 12Z OVER NWRN MO...TO THE NORTH OF THE SURFACE WARM FRONT WHERE LOW-LEVEL WAA AND MOISTURE TRANSPORT ARE SURMOUNTED BY DCVA AND THE DIVERGENT POLE OF A CYCLONIC MID TO UPPER-LEVEL JET STREAK OVER THE SRN PLAINS. GIVEN THE STEEP MIDLEVEL LAPSE RATES...MUCAPE UP TO 1000 J/KG AND STRONG CLOUD-BEARING SHEAR...THE POTENTIAL WILL EXIST FOR SUPERCELLS CAPABLE OF SEVERE HAIL. THESE SAME PROCESSES ARE EXPECTED TO MAINTAIN A LOW-PROBABILITY HAIL RISK EWD/NEWD ACROSS NRN MO INTO CNTRL/ERN IA...AND PERHAPS EVENTUALLY NWRN IL. ..MEAD/SMITH.. 02/20/2014 Link to comment Share on other sites More sharing options...
jaxjagman Posted February 20, 2014 Author Share Posted February 20, 2014 Link to comment Share on other sites More sharing options...
nrgjeff Posted February 20, 2014 Share Posted February 20, 2014 Those separate cells appear to be on a prefrontal trough. I'd look for more action there than on the actual CF. Still not convinced the prefrontal trough does not line out. However I have some thoughts on Central Alabama, after dark unfortunately. Most of this will be high straight line winds. SPC discussion is great. One can tell the sequester is over; they must have better staffing. SPC notes the strong wind fields at all levels. Even low topped squall line will mix down a lot of wind. Memphis WFO Twitter feed is good too. Other WFOs have it on their regular web page, but seems best MEM graphic is on their Twitter handle. Central Alabama issues tonight include a secondary warm front and southern stream jet energy coming out of Texas into the Deep South. LLJ will mix down a bit to the surface tonight; and, promote robust dewpoint return into Alabama. This secondary WF may not make it to the Tennessee Valley due to ongoing convection. However it is close enough and I know we got Alabama members in the house. Maybe on that boundary or ahead of the prefrontal trough a few cells could rotate. It is late night unfortunately. South severe, sigh. Good news is I'd bet more on weaker short-lived spin-ups than classic tornadoes. Most of the action will be straight line winds in broken bow segments. Broken just means additional attention to the TOR threat, but the TOR threat is relatively low. Otherwise, still mainly high straight line winds even into central Alabama. My motto: Don't be scared; just be aware. Link to comment Share on other sites More sharing options...
jaxjagman Posted February 20, 2014 Author Share Posted February 20, 2014 Link to comment Share on other sites More sharing options...
jaxjagman Posted February 20, 2014 Author Share Posted February 20, 2014 DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 1030 AM CST THU FEB 20 2014 VALID 201630Z - 211200Z ...THERE IS A MDT RISK OF SVR TSTMS THIS AFTERNOON/EVENING FROM NRN MS ACROSS NW AL...WRN/MIDDLE TN...AND WRN/CENTRAL KY... ...THERE IS A SLGT RISK OF SVR TSTMS FROM THE NRN GULF COAST TO THE OH VALLEY... ...WIDESPREAD DAMAGING WINDS AND A FEW TORNADOES POSSIBLE LATER THIS AFTERNOON THROUGH EARLY TONIGHT FOR PARTS OF THE MID SOUTH AND TN/OH VALLEYS... ...MS/OH/TN VALLEY REGION THROUGH TONIGHT... A STRONG MIDLEVEL SHORTWAVE TROUGH WILL PROGRESS EWD/NEWD FROM THE CENTRAL PLAINS TO THE MID MS VALLEY AND GREAT LAKES BY LATER TONIGHT. AT THE SURFACE...A RAPIDLY DEEPENING CYCLONE WILL TRANSLATE FROM THE KANSAS CITY AREA THIS MORNING TO WI/UPPER MI OVERNIGHT. S OF THE LOW...A COLD FRONT WILL SWEEP QUICKLY EWD TO THE MS RIVER BY THIS EVENING...AND THE TN/OH VALLEYS OVERNIGHT. SEASONABLY RICH MOISTURE IS SPREADING NWD/NEWD IN THE WARM SECTOR OF THE CYCLONE...BENEATH A STEEP LAPSE RATE PLUME PER REGIONAL 12Z SOUNDINGS. THE RELATIVELY WARM ELEVATED MIXED LAYER WILL ACT TO CAP THE BOUNDARY LAYER UNTIL EARLY-MID AFTERNOON...AND RELATIVELY WIDESPREAD CLOUDS WILL SLOW SURFACE HEATING SOMEWHAT. STILL...ASCENT IN ADVANCE OF THE MIDLEVEL WAVE AND ALONG THE FRONT WILL WEAKEN THE CAP FROM BELOW AND LIKELY SUPPORT THUNDERSTORM DEVELOPMENT BY 19-21Z. THERE APPEAR TO BE TWO POTENTIAL CORRIDORS FOR CONVECTIVE INITIATION...THE IMMEDIATE COLD FRONT FROM THE SAINT LOUIS VICINITY SWD INTO NE AR BY MID AFTERNOON...AND A SLIGHTLY PRE-FRONTAL CONFLUENCE BAND ALONG THE AXIS OF RICHEST LOW-LEVEL MOISTURE FROM E CENTRAL TX ACROSS NW LA TO THE MEMPHIS AREA BY 21Z. STRONG CROSS-FRONTAL FLOW/SHEAR VECTORS AND A CORRIDOR OF STRONGER SURFACE HEATING WILL SUPPORT A RISK FOR SUPERCELL DEVELOPMENT INITIALLY ALONG THE COLD FRONT FROM SAINT LOUIS INTO NE AR THIS AFTERNOON IN A ZONE OF MLCAPE OF 500-1000 J/KG AND VERY STRONG DEEP-LAYER VERTICAL SHEAR. DAMAGING WINDS AND A COUPLE OF TORNADOES WILL BE POSSIBLE S OF THE MORE STABLE BOUNDARY LAYER AND EXISTING SNOW PACK. THE SRN PRE-FRONTAL CONVECTION WILL POTENTIALLY INCLUDE EMBEDDED SUPERCELLS THIS AFTERNOON/EVENING...THOUGH CONVECTIVE MODE IS A BIT IN QUESTION GIVEN THE OBSERVED AND FORECAST VEER-BACK PROFILE AROUND 700 MB ACROSS THE ARKLAMISS/MID SOUTH. EVEN WITH POTENTIALLY TWO MODES/ZONES OF INITIAL CONVECTION... CONSOLIDATION INTO A SQUALL LINE IS EXPECTED BY THIS EVENING/EARLY TONIGHT...WITH A MORE WIDESPREAD DAMAGING WIND RISK IN THE MDT RISK AREA. THE NRN PORTIONS OF THE SQUALL LINE WILL LIKELY WEAKEN LATE TONIGHT TOWARD THE UPPER OH VALLEY AND JUST W OF THE APPALACHIANS...WHILE THE DAMAGING WIND/ISOLATED TORNADO RISK WILL PERSIST THROUGH THE NIGHT FROM SE LA ACROSS MS/AL TO NW GA IN THE CORRIDOR OF RICHEST LOW-LEVEL MOISTURE AND CONTINUING STRONG VERTICAL SHEAR. ...NRN MO TO SRN WI THROUGH THIS AFTERNOON... CLUSTERS OF ELEVATED THUNDERSTORMS WILL LIKELY PERSIST IN THE ZONE OF ASCENT/ELEVATED BUOYANCY PRECEDING THE DEEPENING SURFACE LOW THROUGH THE AFTERNOON. MARGINALLY SEVERE HAIL WILL BE POSSIBLE...REFERENCE MD 119 FOR ADDITIONAL DETAILS. Link to comment Share on other sites More sharing options...
jaxjagman Posted February 20, 2014 Author Share Posted February 20, 2014 Link to comment Share on other sites More sharing options...
jaxjagman Posted February 20, 2014 Author Share Posted February 20, 2014 MESOSCALE DISCUSSION 0123 NWS STORM PREDICTION CENTER NORMAN OK 0145 PM CST THU FEB 20 2014 AREAS AFFECTED...PARTS OF THE MID-SOUTH/MID-MS VALLEY CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY VALID 201945Z - 202145Z PROBABILITY OF WATCH ISSUANCE...95 PERCENT SUMMARY...TSTMS WILL LIKELY DEVELOP NEWD FROM AR ACROSS THE MS VALLEY BY LATE AFTERNOON INTO THIS EVENING. A PREDOMINANT LINEAR MODE WILL TEND TO FAVOR DAMAGING WINDS AS THE MAIN HAZARD...BUT ENLARGED LOW-LEVEL HODOGRAPHS SHOULD YIELD EMBEDDED SUPERCELL STRUCTURES CAPABLE OF A FEW TORNADOES. DISCUSSION...STRONG TO LOCALLY SEVERE TSTMS HAVE INCREASED WITHIN A PRE-FRONTAL CONFLUENCE BAND INTO S-CNTRL AR. AHEAD OF THIS ACTIVITY...WIDESPREAD DEEP CLOUDINESS HAS LIMITED INSOLATION AND SLOWED DESTABILIZATION. NEVERTHELESS...A PLUME OF 60-63 DEG F SURFACE DEW POINTS HAS BEEN MAINTAINED ACROSS THE MS VALLEY. AS THE COMPOSITE COLD FRONT/DRYLINE INTERCEPTS THIS PLUME...A DISTINCT INCREASE IN CONVECTIVE INTENSITY APPEARS LIKELY IN THE LATE AFTERNOON. DEEP-LAYER WIND PROFILES WILL REMAIN STRONG AND EVEN STRENGTHEN ON THE SRN FRINGE OF AN INTENSE 500-700 MB JET ROTATING THROUGH THE BASE OF THE N-CNTRL CONUS SHORTWAVE TROUGH. ALTHOUGH LINEAR MODE AND ATTENDANT SEVERE WIND RISK WILL LIKELY DOMINATE...LARGE LOW-LEVEL HODOGRAPHS AND MODEST TEMPERATURE/DEW POINT SPREADS WILL SUPPORT POTENTIAL FOR A FEW TORNADOES AS WELL. Link to comment Share on other sites More sharing options...
Windspeed Posted February 20, 2014 Share Posted February 20, 2014 Storms near Jackson, Tenn., starting to look ominous. This is out ahead of the developing line to the west. Link to comment Share on other sites More sharing options...
John1122 Posted February 20, 2014 Share Posted February 20, 2014 Tornado watch indeed issued for most of the Western half of the Valley area. I suspect it may be issued as far Eastward as Nashville and Huntsville eventually, probably severe t-storm watches points East. Link to comment Share on other sites More sharing options...
John1122 Posted February 20, 2014 Share Posted February 20, 2014 The severe warned storm approaching Memphis also bears watching. Tornadoes tend to spin up in areas where the convection breaks in linear systems like this. That storm is right on the edge of a break in the line. Link to comment Share on other sites More sharing options...
Jon Posted February 20, 2014 Share Posted February 20, 2014 TVS detected, weak rotation Link to comment Share on other sites More sharing options...
Jon Posted February 20, 2014 Share Posted February 20, 2014 Wow...7 tornado warnings up, cell headed towards memphis seems to be getting greater rotation to a degree, lets hope that doesn't hold. Link to comment Share on other sites More sharing options...
wxmeddler Posted February 20, 2014 Share Posted February 20, 2014 Hook and couplet coming into Memphis metro in next 30 min. Link to comment Share on other sites More sharing options...
Jon Posted February 20, 2014 Share Posted February 20, 2014 Hook and couplet coming into Memphis metro in next 30 min. yep Link to comment Share on other sites More sharing options...
Hvward Posted February 20, 2014 Share Posted February 20, 2014 New scan coming in looks to be tightening up Link to comment Share on other sites More sharing options...
wxmeddler Posted February 20, 2014 Share Posted February 20, 2014 At its peak. Link to comment Share on other sites More sharing options...
Hvward Posted February 20, 2014 Share Posted February 20, 2014 Cell in the boot heel of MO looks to be moving NE towards Union City. Link to comment Share on other sites More sharing options...
Jon Posted February 20, 2014 Share Posted February 20, 2014 At its peak. uploadfromtaptalk1392935188553.jpg Not too shabby, wonder if anyone got any funnel pics...Frank Strait said on FB he saw debris sigs, I didn't see any though. Link to comment Share on other sites More sharing options...
Jon Posted February 20, 2014 Share Posted February 20, 2014 Pretty tight couplet headed towards Carbondale, IL (Union/Jackson Counties southern IL) Link to comment Share on other sites More sharing options...
Jon Posted February 20, 2014 Share Posted February 20, 2014 Crenshaw [Panola Co, MS] PUBLIC reports FUNNEL CLOUD at 4:20 PM CST -- http://dlvr.it/4zRfgy Link to comment Share on other sites More sharing options...
Hvward Posted February 20, 2014 Share Posted February 20, 2014 Cell north of Cape Girardeau gaining some spin. Look out Carbondale! Link to comment Share on other sites More sharing options...
Jon Posted February 20, 2014 Share Posted February 20, 2014 https://twitter.com/piperky1/status/436631466471325697/photo/1 "between Hornersville and Steele about 10 min ago" Link to comment Share on other sites More sharing options...
Windspeed Posted February 20, 2014 Share Posted February 20, 2014 Pretty tight couplet headed towards Carbondale, IL (Union/Jackson Counties southern IL) Yeah, that is wound up... Link to comment Share on other sites More sharing options...
Superstorm93 Posted February 20, 2014 Share Posted February 20, 2014 Probable tornado near Pomona CC hole observed on .5 and .9 degree tilts: Link to comment Share on other sites More sharing options...
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