PowellVolz Posted March 27, 2021 Share Posted March 27, 2021 From TYS looking north . 2 Link to comment Share on other sites More sharing options...
jaxjagman Posted March 27, 2021 Author Share Posted March 27, 2021 4 minutes ago, PowellVolz said: From TYS looking north . By Maryville? 1 Link to comment Share on other sites More sharing options...
janetjanet998 Posted March 27, 2021 Share Posted March 27, 2021 MESOSCALE DISCUSSION 0278 NWS STORM PREDICTION CENTER NORMAN OK 1155 AM CDT SAT MAR 27 2021 AREAS AFFECTED...PORTIONS OF EASTERN AR...MUCH OF TN...NORTHERN MS/AL...AND EXTREME NORTHWESTERN GA CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY VALID 271655Z - 271930Z PROBABILITY OF WATCH ISSUANCE...80 PERCENT SUMMARY...THE SEVERE THREAT SHOULD GRADUALLY INCREASE THIS AFTERNOON ALONG AND SOUTH OF A FRONT. A FEW TORNADOES, LARGE HAIL, AND DAMAGING WIND GUSTS ALL APPEAR POSSIBLE. WATCH ISSUANCE IS LIKELY BY EARLY AFTERNOON. DISCUSSION...16Z SURFACE ANALYSIS SHOWS A CONVECTIVELY REINFORCED FRONT DRAPED GENERALLY WEST TO EAST ACROSS SOUTHERN TN. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE ONGOING MAINLY ALONG/NORTH OF THIS FRONT OWING TO CONTINUED SOUTHWESTERLY LOW-LEVEL WARM ADVECTION. LOW-LEVEL MOISTURE IS EXPECTED TO INCREASE FURTHER THROUGH THE EARLY AFTERNOON AS SURFACE DEWPOINTS REACH THE MID/UPPER 60S ACROSS THE WARM SECTOR. MODESTLY STEEPENED MID-LEVEL LAPSE RATES SHOULD ALSO OVERSPREAD PARTS OF EASTERN AR INTO WESTERN TN AND NORTHERN MN/AL. CONTINUED MODEST DIURNAL HEATING COMBINED WITH THE RICH LOW-LEVEL MOISTURE AND STEEPENING LAPSE RATES ALOFT WILL LIKELY SUPPORT THE DEVELOPMENT OF 1500-2500 J/KG OF MLCAPE BY PEAK AFTERNOON HEATING ALONG/SOUTH OF THE FRONT. LARGE-SCALE FORCING APPEARS NEBULOUS WITH AN UPPER TROUGH REMAINING WELL TO THE WEST OF THIS REGION. STILL, THE FRONT MAY LIFT VERY SLOWLY NORTHWARD ACROSS TN THROUGH THE AFTERNOON WITH PERSISTENT 25-35 KT OF SOUTHWESTERLY LOW-LEVEL FLOW. A BROAD SWATH OF 50-60 KT OF WEST-SOUTHWESTERLY WINDS AT MID LEVELS WILL FOSTER AROUND 40-50 KT OF EFFECTIVE BULK SHEAR. THIS WILL LIKELY SUPPORT SUPERCELL STRUCTURES AND SMALL BOWING LINE SEGMENTS WITH ANY STORMS THAT CAN DEVELOP ALONG/SOUTH OF THE WARM FRONT. LARGE HAIL WILL BE A CONCERN WITH ANY DISCRETE STORMS GIVEN THE FAVORABLE ENVIRONMENT, AND SOME ISOLATED VERY LARGE HAIL OF 2+ INCHES IN DIAMETER APPEARS POSSIBLE WHERE THE GREATEST INSTABILITY CAN DEVELOP (LIKELY EASTERN AR/WESTERN TN/NORTHERN MS). AT LEAST ISOLATED DAMAGING WIND GUSTS MAY ALSO OCCUR IF STORMS CAN CONGEAL AND MOVE EASTWARD ALONG THE FRONT WHILE REMAINING SURFACE BASED. ALTHOUGH THE LOW-LEVEL FLOW IS NOT OVERLY STRONG AT THE MOMENT, IT SHOULD GRADUALLY STRENGTHEN LATER THIS AFTERNOON. REGARDLESS, AROUND 150-200 M2/S2 OF EFFECTIVE SRH WILL LIKELY SUPPORT UPDRAFT ROTATION, AND A FEW TORNADOES MAY OCCUR WITH ANY SUPERCELLS THAT CAN FORM. THE TORNADO POTENTIAL WILL LIKELY BE MAXIMIZED ALONG THE WARM FRONT, WHERE SURFACE WINDS SHOULD BE BACKED TO A MORE EAST-SOUTHEASTERLY DIRECTION, ENHANCING LOW-LEVEL SHEAR. A STRONG TORNADO OR TWO ALSO APPEARS POSSIBLE, MAINLY LATER THIS AFTERNOON/EARLY EVENING AS LOW-LEVEL WINDS GRADUALLY STRENGTHEN. CURRENT EXPECTATIONS ARE FOR STORMS TO GRADUALLY INCREASE IN COVERAGE AND INTENSITY THROUGH THE EARLY AFTERNOON. ACCORDINGLY, A TORNADO WATCH WILL LIKELY BE NEEDED IN THE NEXT COUPLE OF HOURS. 2 Link to comment Share on other sites More sharing options...
MattPetrulli Posted March 27, 2021 Share Posted March 27, 2021 Just now, janetjanet998 said: ESOSCALE DISCUSSION 0278 NWS STORM PREDICTION CENTER NORMAN OK 1155 AM CDT SAT MAR 27 2021 AREAS AFFECTED...PORTIONS OF EASTERN AR...MUCH OF TN...NORTHERN MS/AL...AND EXTREME NORTHWESTERN GA CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY VALID 271655Z - 271930Z PROBABILITY OF WATCH ISSUANCE...80 PERCENT SUMMARY...THE SEVERE THREAT SHOULD GRADUALLY INCREASE THIS AFTERNOON ALONG AND SOUTH OF A FRONT. A FEW TORNADOES, LARGE HAIL, AND DAMAGING WIND GUSTS ALL APPEAR POSSIBLE. WATCH ISSUANCE IS LIKELY BY EARLY AFTERNOON. DISCUSSION...16Z SURFACE ANALYSIS SHOWS A CONVECTIVELY REINFORCED FRONT DRAPED GENERALLY WEST TO EAST ACROSS SOUTHERN TN. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE ONGOING MAINLY ALONG/NORTH OF THIS FRONT OWING TO CONTINUED SOUTHWESTERLY LOW-LEVEL WARM ADVECTION. LOW-LEVEL MOISTURE IS EXPECTED TO INCREASE FURTHER THROUGH THE EARLY AFTERNOON AS SURFACE DEWPOINTS REACH THE MID/UPPER 60S ACROSS THE WARM SECTOR. MODESTLY STEEPENED MID-LEVEL LAPSE RATES SHOULD ALSO OVERSPREAD PARTS OF EASTERN AR INTO WESTERN TN AND NORTHERN MN/AL. CONTINUED MODEST DIURNAL HEATING COMBINED WITH THE RICH LOW-LEVEL MOISTURE AND STEEPENING LAPSE RATES ALOFT WILL LIKELY SUPPORT THE DEVELOPMENT OF 1500-2500 J/KG OF MLCAPE BY PEAK AFTERNOON HEATING ALONG/SOUTH OF THE FRONT. LARGE-SCALE FORCING APPEARS NEBULOUS WITH AN UPPER TROUGH REMAINING WELL TO THE WEST OF THIS REGION. STILL, THE FRONT MAY LIFT VERY SLOWLY NORTHWARD ACROSS TN THROUGH THE AFTERNOON WITH PERSISTENT 25-35 KT OF SOUTHWESTERLY LOW-LEVEL FLOW. A BROAD SWATH OF 50-60 KT OF WEST-SOUTHWESTERLY WINDS AT MID LEVELS WILL FOSTER AROUND 40-50 KT OF EFFECTIVE BULK SHEAR. THIS WILL LIKELY SUPPORT SUPERCELL STRUCTURES AND SMALL BOWING LINE SEGMENTS WITH ANY STORMS THAT CAN DEVELOP ALONG/SOUTH OF THE WARM FRONT. LARGE HAIL WILL BE A CONCERN WITH ANY DISCRETE STORMS GIVEN THE FAVORABLE ENVIRONMENT, AND SOME ISOLATED VERY LARGE HAIL OF 2+ INCHES IN DIAMETER APPEARS POSSIBLE WHERE THE GREATEST INSTABILITY CAN DEVELOP (LIKELY EASTERN AR/WESTERN TN/NORTHERN MS). AT LEAST ISOLATED DAMAGING WIND GUSTS MAY ALSO OCCUR IF STORMS CAN CONGEAL AND MOVE EASTWARD ALONG THE FRONT WHILE REMAINING SURFACE BASED. ALTHOUGH THE LOW-LEVEL FLOW IS NOT OVERLY STRONG AT THE MOMENT, IT SHOULD GRADUALLY STRENGTHEN LATER THIS AFTERNOON. REGARDLESS, AROUND 150-200 M2/S2 OF EFFECTIVE SRH WILL LIKELY SUPPORT UPDRAFT ROTATION, AND A FEW TORNADOES MAY OCCUR WITH ANY SUPERCELLS THAT CAN FORM. THE TORNADO POTENTIAL WILL LIKELY BE MAXIMIZED ALONG THE WARM FRONT, WHERE SURFACE WINDS SHOULD BE BACKED TO A MORE EAST-SOUTHEASTERLY DIRECTION, ENHANCING LOW-LEVEL SHEAR. A STRONG TORNADO OR TWO ALSO APPEARS POSSIBLE, MAINLY LATER THIS AFTERNOON/EARLY EVENING AS LOW-LEVEL WINDS GRADUALLY STRENGTHEN. CURRENT EXPECTATIONS ARE FOR STORMS TO GRADUALLY INCREASE IN COVERAGE AND INTENSITY THROUGH THE EARLY AFTERNOON. ACCORDINGLY, A TORNADO WATCH WILL LIKELY BE NEEDED IN THE NEXT COUPLE OF HOURS. Fairly large MD too. 1 Link to comment Share on other sites More sharing options...
Icy Hot Posted March 27, 2021 Share Posted March 27, 2021 Round 2 just went thru Kingsport. 47 mph wind gusts, heavy rain. Easily exceeded the 1/2" predicted for today. 2 2 Link to comment Share on other sites More sharing options...
janetjanet998 Posted March 27, 2021 Share Posted March 27, 2021 35ish warnings since 12z out of the old TN system now moving into NC (meso out) 21 filtered severe hail reports including one 2 inch report no watch 2 Link to comment Share on other sites More sharing options...
Carvers Gap Posted March 27, 2021 Share Posted March 27, 2021 RE: First line that came through TRI this morning.... The hail photos out of Kingsport and JC are crazy. Today was our long run. Miles 1-4 were uneventful. We could hear the storm coming up behind us. Called my wife to get to our pick-up point early which is at mile 6.5. We hit mile 6.3(just .2 from the car) and had to stop under a bridge as the storm crossed the ridge and went bonkers. I wasn't sure we could get across the parking lot without getting hit by lightning. Temps began to drop quickly. They came over and picked us up. We all sat in the car as the storm roared through. We had nickel to quarter size hail. Picked up one dent - old van and not worried. Managed to get some video and photos near the last 1/3 of the storm. The Greenbelt was flooded within minutes in that section. @tnweathernut shared this with me... 2 1 Link to comment Share on other sites More sharing options...
janetjanet998 Posted March 27, 2021 Share Posted March 27, 2021 RGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 59 NWS STORM PREDICTION CENTER NORMAN OK 145 PM CDT SAT MAR 27 2021 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF EXTREME NORTHERN ALABAMA EXTREME EAST CENTRAL ARKANSAS NORTHERN MISSISSIPPI SOUTHERN PARTS OF WESTERN AND MIDDLE TENNESSEE * EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 145 PM UNTIL 900 PM CDT. * PRIMARY THREATS INCLUDE... SEVERAL TORNADOES AND A COUPLE INTENSE TORNADOES LIKELY SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75 MPH LIKELY SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 3 INCHES IN DIAMETER LIKELY SUMMARY...SEVERE STORM DEVELOPMENT IS EXPECTED BY MID AFTERNOON AND STORMS WILL PERSIST WELL INTO THIS EVENING. THE STORM ENVIRONMENT FAVORS SUPERCELLS CAPABLE OF PRODUCING A COUPLE OF STRONG TORNADOES AND VERY LARGE HAIL NEAR THE SIZE OF BASEBALLS. AS STORMS CLUSTER MORE INTO THE EVENING, THE THREAT FOR DAMAGING WINDS WILL INCREASE, INCLUDING THE POTENTIAL FOR HURRICANE FORCE GUSTS. 1 Link to comment Share on other sites More sharing options...
MattPetrulli Posted March 27, 2021 Share Posted March 27, 2021 1 minute ago, janetjanet998 said: RGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 59 NWS STORM PREDICTION CENTER NORMAN OK 145 PM CDT SAT MAR 27 2021 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF EXTREME NORTHERN ALABAMA EXTREME EAST CENTRAL ARKANSAS NORTHERN MISSISSIPPI SOUTHERN PARTS OF WESTERN AND MIDDLE TENNESSEE * EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 145 PM UNTIL 900 PM CDT. * PRIMARY THREATS INCLUDE... SEVERAL TORNADOES AND A COUPLE INTENSE TORNADOES LIKELY SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75 MPH LIKELY SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 3 INCHES IN DIAMETER LIKELY SUMMARY...SEVERE STORM DEVELOPMENT IS EXPECTED BY MID AFTERNOON AND STORMS WILL PERSIST WELL INTO THIS EVENING. THE STORM ENVIRONMENT FAVORS SUPERCELLS CAPABLE OF PRODUCING A COUPLE OF STRONG TORNADOES AND VERY LARGE HAIL NEAR THE SIZE OF BASEBALLS. AS STORMS CLUSTER MORE INTO THE EVENING, THE THREAT FOR DAMAGING WINDS WILL INCREASE, INCLUDING THE POTENTIAL FOR HURRICANE FORCE GUSTS. SPC probably saw 17z HRRR and decided for 80/60 probs 1 Link to comment Share on other sites More sharing options...
Runman292 Posted March 27, 2021 Share Posted March 27, 2021 Interesting that they highlighted Southeast TN in the MD, but didnt include that area in the watch. Link to comment Share on other sites More sharing options...
janetjanet998 Posted March 27, 2021 Share Posted March 27, 2021 18Z HRRR even more unstable with CAPE >3300 near Memphis by 22z hopefully the storms over TN near the WF stay elevated 2 Link to comment Share on other sites More sharing options...
WhirlingWx Posted March 27, 2021 Share Posted March 27, 2021 Those are some more stout probabilities than I expected, tbh 1 Link to comment Share on other sites More sharing options...
janetjanet998 Posted March 27, 2021 Share Posted March 27, 2021 18Z HRRR Link to comment Share on other sites More sharing options...
Carvers Gap Posted March 27, 2021 Share Posted March 27, 2021 4 Link to comment Share on other sites More sharing options...
cheese007 Posted March 27, 2021 Share Posted March 27, 2021 30 minutes ago, TexMexWx said: Those are some more stout probabilities than I expected, tbh Yeah same. My eyes got real wide when I popped open the SPC page Link to comment Share on other sites More sharing options...
janetjanet998 Posted March 27, 2021 Share Posted March 27, 2021 back west] MESOSCALE DISCUSSION 0280 NWS STORM PREDICTION CENTER NORMAN OK 0216 PM CDT SAT MAR 27 2021 AREAS AFFECTED...PORTIONS OF NORTHEAST TX...NORTHERN LA...AND MUCH OF SOUTHERN/CENTRAL/EASTERN AR CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY VALID 271916Z - 272045Z PROBABILITY OF WATCH ISSUANCE...80 PERCENT SUMMARY...THE THREAT FOR TORNADOES, SOME OF WHICH MAY BE STRONG, VERY LARGE HAIL, AND DAMAGING WINDS WILL INCREASE THIS AFTERNOON. TORNADO WATCH ISSUANCE WILL LIKELY BE NEEDED. DISCUSSION...THE AIRMASS ACROSS THE ARKLATEX REGION CONTINUES TO DESTABILIZE THIS AFTERNOON, WITH SURFACE TEMPERATURES GENERALLY REACHING INTO THE 70S AND LOW 80S AT 19Z. RICH LOW-LEVEL MOISTURE ALREADY IN PLACE ACROSS THIS REGION COMBINED WITH STEEP MID-LEVEL LAPSE RATES OF 7-8 C/KM ARE SUPPORTING MLCAPE OF 1500-2000 J/KG. STRONG DEEP-LAYER SHEAR OF 50+ KT WILL EASILY FAVOR DISCRETE SUPERCELLS WITH INITIAL DEVELOPMENT. GIVEN A LACK OF OBVIOUS LARGE-SCALE FORCING FOR ASCENT, THE PRIMARY UNCERTAINTY IS WHEN ROBUST STORMS WILL FORM. BEST ESTIMATE IS THAT WITH CONTINUED DIURNAL HEATING AND WEAK LOW-LEVEL CONVERGENCE ALONG/SOUTH OF THE WARM FRONT, STORMS WILL PROBABLY INITIATE BY 20-21Z AS A WEAK LOW-LEVEL CAP CONTINUES TO GRADUALLY ERODE. LARGE TO VERY LARGE (2+ INCH) HAIL WILL LIKELY BE THE MAIN THREAT WITH SUPERCELLS INITIALLY, AS LOW-LEVEL SHEAR IS NOT VERY STRONG AT THE MOMENT. BUT, A LOW-LEVEL SOUTH-SOUTHWESTERLY JET SHOULD STRENGTHEN LATER THIS AFTERNOON INTO THE EARLY EVENING, AND TORNADO POTENTIAL WITH ANY DISCRETE STORMS WILL INCREASE. A STRONG TORNADO APPEARS POSSIBLE GIVEN 150-200 M2/S2 OF EFFECTIVE SRH BY MID-EVENING IF STORMS CAN REMAIN GENERALLY DISCRETE. AN INCREASING THREAT FOR DAMAGING WINDS MAY ALSO EVENTUALLY UNFOLD LATER THIS EVENING AS UPSCALE GROWTH OCCURS. BASED ON TOWERING CUMULUS BECOMING EVIDENT ON VISIBLE SATELLITE IMAGERY ACROSS AR, A TORNADO WATCH WILL LIKELY NEED TO BE ISSUED. ..GLEASON/THOMPSON.. 03/27/2021 ..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT Link to comment Share on other sites More sharing options...
janetjanet998 Posted March 27, 2021 Share Posted March 27, 2021 small discrete storms developing over SW TN and eastern AR WF slowly moving north some clearing too ahead of them LLJ 30knots on Mempis VAD 18z NAM increases to 40 kts by 00z and 50 knots at 03z 1 Link to comment Share on other sites More sharing options...
jaxjagman Posted March 27, 2021 Author Share Posted March 27, 2021 12 minutes ago, janetjanet998 said: small discrete storms developing over SW TN and eastern AR WF slowly moving north some clearing too ahead of them LLJ 30knots on Mempis VAD 18z NAM increases to 40 kts by 00z and 50 knots at 03z Yeah DP'S per Meso West are showing 68 right now in Memphis Link to comment Share on other sites More sharing options...
jaxjagman Posted March 27, 2021 Author Share Posted March 27, 2021 Mesoscale looks pretty unstable towards the TN/Ms line right now Link to comment Share on other sites More sharing options...
MattPetrulli Posted March 27, 2021 Share Posted March 27, 2021 Interesting thread regarding tor potential today 1 Link to comment Share on other sites More sharing options...
janetjanet998 Posted March 27, 2021 Share Posted March 27, 2021 cells over western TN trying to hook and rotate..these will move ENE but the likely turn east riding the WF .... 19z HRRR continues to show high tornado potential with these also 6+ inches of more rain Link to comment Share on other sites More sharing options...
janetjanet998 Posted March 27, 2021 Share Posted March 27, 2021 MESOSCALE DISCUSSION 0282 NWS STORM PREDICTION CENTER NORMAN OK 0342 PM CDT SAT MAR 27 2021 AREAS AFFECTED...PORTIONS OF EXTREME EASTERN AR INTO WESTERN/MIDDLE TN CONCERNING...TORNADO WATCH 59... VALID 272042Z - 272215Z THE SEVERE WEATHER THREAT FOR TORNADO WATCH 59 CONTINUES. SUMMARY...THE THREAT FOR TORNADOES AND LARGE HAIL SHOULD INCREASE ACROSS PARTS OF WESTERN/MIDDLE TN THROUGH THE REMAINDER OF THE AFTERNOON. DISCUSSION...BASED ON RECENT RADAR AND VISIBLE SATELLITE IMAGERY, IT APPEARS THAT ROBUST UPDRAFT DEVELOPMENT IS IMMINENT ACROSS PARTS OF SOUTHWESTERN TN. VWP FROM KNQA SHOWS AROUND 25-30 KT OF 0-1 KM SHEAR, AND NEARLY 200 M2/S2 OF 0-1 KM SRH. WITH 50-60+ KT OF EFFECTIVE BULK SHEAR AND 1500-2000 J/KG OF MLCAPE PRESENT ALONG AND SOUTH OF A WARM FRONT, SUPERCELLS STILL APPEAR LIKELY. THE BEST TORNADO THREAT ACROSS TORNADO WATCH 59 WILL PROBABLY FOCUS ACROSS SOUTHWESTERN TN AND VICINITY OVER THE NEXT COUPLE OF HOURS IN THE VICINITY OF THE WARM FRONT, AS THE GREATEST LOW-LEVEL SHEAR IS PRESENT THERE. LARGE HAIL, POTENTIALLY GREATER THAN 2 INCHES IN DIAMETER, ALSO REMAINS A CONCERN GIVEN THE MODERATE TO STRONG INSTABILITY AND STEEP MID-LEVEL LAPSE RATES. Link to comment Share on other sites More sharing options...
PowellVolz Posted March 27, 2021 Share Posted March 27, 2021 By Maryville?Yes. Airport down Alcoa Hwy. . Link to comment Share on other sites More sharing options...
PowellVolz Posted March 27, 2021 Share Posted March 27, 2021 Several of these showers in middle Tennessee are dolphin shaped. Shear must be pretty good across MTn also. . Link to comment Share on other sites More sharing options...
janetjanet998 Posted March 27, 2021 Share Posted March 27, 2021 MESOSCALE DISCUSSION 0284 NWS STORM PREDICTION CENTER NORMAN OK 0356 PM CDT SAT MAR 27 2021 AREAS AFFECTED...PORTIONS OF NORTHERN/CENTRAL MS/AL CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE VALID 272056Z - 272230Z PROBABILITY OF WATCH ISSUANCE...40 PERCENT SUMMARY...IT REMAINS UNCLEAR WHETHER ROBUST STORMS WILL DEVELOP THIS AFTERNOON. IF THEY DO, THEN ISOLATED LARGE HAIL, STRONG WIND GUSTS, AND PERHAPS A TORNADO MAY OCCUR. WATCH ISSUANCE IS POSSIBLE. DISCUSSION...IT APPEARS THAT CONVECTIVE TEMPERATURES HAVE BEEN BREACHED ACROSS EAST-CENTRAL MS INTO NORTHERN/CENTRAL AL, AS MULTIPLE LIGHTNING FLASHES HAVE RECENTLY BEEN OBSERVED IN OTHERWISE SHOWERY CONVECTION. TEMPERATURES IN THE 80S AND DEWPOINTS IN THE MID TO UPPER 60S ARE SUPPORTING MLCAPE IN THE 1500-2000 J/KG RANGE. ALONG WITH 45-55 KT OF EFFECTIVE BULK SHEAR, THIS ENVIRONMENT CONDITIONALLY SUPPORTS A SUPERCELL THREAT. THE MAIN UNCERTAINTY IS WHETHER MULTIPLE ROBUST STORMS WILL DEVELOP SINCE THE MAIN FORCING FOR STORMS IS JUST A BROAD AREA OF WEAK LOW-LEVEL WARM ADVECTION. STILL, IF CURRENT RADAR TRENDS CONTINUE, THEN ISOLATED LARGE HAIL AND STRONG/GUSTY WINDS MAY BECOME A THREAT THIS AFTERNOON. A TORNADO CANNOT BE RULED OUT EITHER, ALTHOUGH THE LOW-LEVEL FLOW IS NOT THAT STRONG PER KBMX AND KGWX VWPS. CONVECTIVE TRENDS WILL BE CLOSELY MONITORED FOR POSSIBLE WATCH ISSUANCE. ..GLEASON/THOMPSON.. 03/27/2021 Link to comment Share on other sites More sharing options...
Indystorm Posted March 27, 2021 Share Posted March 27, 2021 Low and mid level lapse rates are good in the affected watch areas. Helicity at present could be higher but this could change. Link to comment Share on other sites More sharing options...
PowellVolz Posted March 27, 2021 Share Posted March 27, 2021 Two areas too watch in this cell heading towards Lexington Tn . 1 Link to comment Share on other sites More sharing options...
weatherextreme Posted March 27, 2021 Share Posted March 27, 2021 Link to comment Share on other sites More sharing options...
jaxjagman Posted March 27, 2021 Author Share Posted March 27, 2021 2 minutes ago, weatherextreme said: That's the cell i saw come ,but no rotation,yet Link to comment Share on other sites More sharing options...
jaxjagman Posted March 27, 2021 Author Share Posted March 27, 2021 Just now, jaxjagman said: That's the cell i saw come ,but no rotation,yet 1 Link to comment Share on other sites More sharing options...
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