baroclinic_instability Posted March 19, 2012 Share Posted March 19, 2012 What a crazy night. Both Cory and I are ok...we are at work. He was on shift and I was called in for OT before it hit the fan. The tor hit a couple miles from my place. Link to comment Share on other sites More sharing options...
Boogieman Posted March 19, 2012 Share Posted March 19, 2012 That line of storms near the TX/NM border sure lit up quick! Link to comment Share on other sites More sharing options...
JoMo Posted March 19, 2012 Share Posted March 19, 2012 21z SREF for tomorrow Link to comment Share on other sites More sharing options...
andyhb Posted March 19, 2012 Share Posted March 19, 2012 Speaking of Monday, what kind of tornado threat would we be dealing with tomorrow? Greater and likely more widespread than today. Link to comment Share on other sites More sharing options...
David Reimer Posted March 19, 2012 Share Posted March 19, 2012 Ended up filming three tornadoes today on the SW OK Supercelll. I;m still about two hours from home. How is Monday looking with the 0Z data? Link to comment Share on other sites More sharing options...
Indystorm Posted March 19, 2012 Share Posted March 19, 2012 Thanks for the update Baro...A number of us were concerned for you both given how quickly that storm developed and moved. Link to comment Share on other sites More sharing options...
andyhb Posted March 19, 2012 Share Posted March 19, 2012 What a crazy night. Both Cory and I are ok...we are at work. He was on shift and I was called in for OT before it hit the fan. The tor hit a couple miles from my place. Happy to here everyone is alright Baro, any news for the tornado's path? Link to comment Share on other sites More sharing options...
SouthernNJ Posted March 19, 2012 Share Posted March 19, 2012 If the line from Lubbock to Midland/Odessa is producing severe weather, then a convective watch should not be far behind. Link to comment Share on other sites More sharing options...
SluggerWx Posted March 19, 2012 Share Posted March 19, 2012 Why does Wunderground have a svr watch already active in west central Texas but it's not showing up on the SPC website? Link to comment Share on other sites More sharing options...
andyhb Posted March 19, 2012 Share Posted March 19, 2012 Ended up filming three tornadoes today on the SW OK Supercelll. I;m still about two hours from home. How is Monday looking with the 0Z data? From the 00z NAM, the apt word is trouble, towards Dallas/FW East/NE earlier in the day from around 15-00z and then the focus shifts south overnight/Tuesday morning as shear parameters become absolutely diabolical as the secondary low shifts a bit eastward towards San Antonio, Austin, Houston, College Station/Bryan and the other large population areas in southern/eastern TX, in the presence of greater 1000 J/kg CAPE and 65 degree sfc dewpoints... I mean, are you kidding me with this hodo between Austin and College Station at 3 AM Tuesday morning? Link to comment Share on other sites More sharing options...
Boogieman Posted March 19, 2012 Share Posted March 19, 2012 Why does Wunderground have a svr watch already active in west central Texas but it's not showing up on the SPC website? Intellicast shows 3 watch boxes and like 5 warnings. Link to comment Share on other sites More sharing options...
Indystorm Posted March 19, 2012 Share Posted March 19, 2012 URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 81 NWS STORM PREDICTION CENTER NORMAN OK 1050 PM CDT SUN MAR 18 2012 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF WEST TEXAS EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1050 PM UNTIL 500 AM CDT. HAIL TO 2 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 50 MILES EAST SOUTHEAST OF FORT STOCKTON TEXAS TO 50 MILES WEST NORTHWEST OF CHILDRESS TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1). 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...A LINE OF THUNDERSTORMS HAS RAPIDLY DEVELOPED AS THE PACIFIC COLD FRONT OVERTAKES THE RETREATING DRYLINE. STORMS ARE IN AN ENVIRONMENT CHARACTERIZED BY STEEP MID LEVEL LAPSE RATES AND AMPLE LOW/DEEP LAYER SHEAR...BUT ALSO WITH CONSIDERABLE CAP. GIVEN THE LINEAR NATURE OF THE FORCING AND THE STRENGTHENING CAP...BELIEVE THAT DAMAGING WINDS AND HAIL ARE THE PRIMARY THREATS. HOWEVER...WILL CONTINUE TO MONITOR CAP STRENGTH AND STORM TRENDS FOR POSSIBILITY OF A TORNADO RISK. Link to comment Share on other sites More sharing options...
andyhb Posted March 19, 2012 Share Posted March 19, 2012 Tornado warning on the embedded cell approaching Lubbock. Link to comment Share on other sites More sharing options...
SluggerWx Posted March 19, 2012 Share Posted March 19, 2012 North Platte Tornado via twitter Link to comment Share on other sites More sharing options...
andyhb Posted March 19, 2012 Share Posted March 19, 2012 Reminds me of this tornado near Thedford on June 4th, 1999: Link to comment Share on other sites More sharing options...
SluggerWx Posted March 19, 2012 Share Posted March 19, 2012 Tornado watch on the way for Texas until 5 AM CDT Monday... SEL2 URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 82 NWS STORM PREDICTION CENTER NORMAN OK 1125 PM CDT SUN MAR 18 2012 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF WEST CENTRAL TEXAS EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1125 PM UNTIL 500 AM CDT. TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 40 STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES SOUTH OF LUBBOCK TEXAS TO 45 MILES NORTHEAST OF PLAINVIEW TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2). REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND 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. OTHER WATCH INFORMATION...CONTINUE...WW 81... DISCUSSION...SEVERAL CIRCULATIONS HAVE RAPIDLY FORMED ALONG THE DEVELOPING SQUALL LINE OVER WEST TX. DESPITE THE RATHER STRONG CAP...IT APPEARS THE RISK OF TORNADOES IS SUFFICIENT TO UPGRADE THE ONGOING SEVERE TSTM WATCH FOR PORTIONS OF WEST CENTRAL TX. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 24035. ...HART Link to comment Share on other sites More sharing options...
Indystorm Posted March 19, 2012 Share Posted March 19, 2012 As has been mentioned earlier, SPC is having trouble with their map graphics tonight. Link to comment Share on other sites More sharing options...
FSMweather Posted March 19, 2012 Share Posted March 19, 2012 One injury around North Platte so far "4 W NORTH PLATTE LINCOLN "*** 1 INJ *** HOUSE WAS SIGNIFICANTLY DAMAGED NEAR FRONT STREET.OCCUPANT WAS INITIALLY TRAPPED BUT HAS SINCE BEEN RESCUED." http://www.spc.noaa.gov/climo/reports/today.html Link to comment Share on other sites More sharing options...
Boogieman Posted March 19, 2012 Share Posted March 19, 2012 Mark Boyle @MarkKCTV5 Early reports are that there are at least 2 people hospitalized from a tornado that struck NP, NE Witnesses say 4 funnel's spotted Link to comment Share on other sites More sharing options...
it*has*an*i Posted March 19, 2012 Share Posted March 19, 2012 As has been mentioned earlier, SPC is having trouble with their map graphics tonight. Looks like Lubbuck is having trouble with theirs too. They have a link at the top of their page saying tornado watch till 5 that takes you to the SPC. The SPC says no Watches are in effect. Lubbock's map does not have counties highlighted for tornado watch at all. http://www.srh.noaa.gov/lub/ Link to comment Share on other sites More sharing options...
SluggerWx Posted March 19, 2012 Share Posted March 19, 2012 http://www.spc.noaa..../md/md0281.html Northern TX, W OK, SW KS... MESOSCALE DISCUSSION 0281 NWS STORM PREDICTION CENTER NORMAN OK 1137 PM CDT SUN MAR 18 2012 AREAS AFFECTED...ERN TX PANHANDLE...NWRN OK INTO SWRN KS CONCERNING...SEVERE POTENTIAL...WATCH LIKELY VALID 190437Z - 190530Z POTENTIAL EXISTS FOR SQUALL LINE TO DEVELOP AS FAR NORTH AS SWRN KS AND NWRN OK INTO THE EARLY MORNING. DESPITE THE LINEAR MODE...A FEW EMBEDDED SUPERCELLS WILL LIKELY DEVELOP WITHIN THE LINE. THE MAIN THREATS WILL BE DAMAGING WIND AND LARGE HAIL...BUT ISOLATED TORNADOES CANNOT BE RULED OUT. STORMS ARE DEVELOPING FROM SWRN TX INTO THE TX PANHANDLE AS DEEPER BAROCLINIC ZONE INTERCEPTS THE DRYLINE. THIS ZONE OF STRONG FORCING HAS RESULTED IN RAPID LINEAR UPSCALE GROWTH. HOWEVER...THE STORMS EXIST WITHIN STRONG VERTICAL SHEAR CHARACTERIZED BY LARGE 0-2 KM HODOGRAPHS. THIS ENVIRONMENT WILL SUPPORT ORGANIZATION INCLUDING BOWING/LEWP SEGMENTS AND EMBEDDED SUPERCELLS AS ACTIVITY DEVELOPS EWD/NEWD WITHIN A MODERATELY UNSTABLE ENVIRONMENT. ..DIAL.. 03/19/2012 ATTN...WFO...OUN...DDC...AMA... LAT...LON 34900135 35770134 37130123 37800046 37689927 34940005 34900135 Link to comment Share on other sites More sharing options...
ZackH Posted March 19, 2012 Share Posted March 19, 2012 What a day. We were on the massive OK cell. We got 3 tornadoes with the first rope crossing about 100 yards in front of us. Most of these were the same tornadoes Ben Holcumb got. That was the most impressive cell I've ever seen in person... and its not even close. That thing looked like the mothership on steroids. Uploading video as we speak. Hopefully I can keep connection. Will link it when I get it up. Link to comment Share on other sites More sharing options...
SluggerWx Posted March 19, 2012 Share Posted March 19, 2012 The line *appears* to be delineating...slightly at the SRN most and NRN most points of the line in TX Link to comment Share on other sites More sharing options...
Chinook Posted March 19, 2012 Share Posted March 19, 2012 Look at what happened in El Paso KELP 190051Z 26030G51KT 1/4SM +DS VV010 16/M04 A2971 RMK AO2 PK WND 27051/0046 SLP011 MTNS OBSCD SW-NW T01611044 51 knot wind gusts with heavy blowing dust Link to comment Share on other sites More sharing options...
Met1985 Posted March 19, 2012 Share Posted March 19, 2012 What a day. We were on the massive OK cell. We got 3 tornadoes with the first rope crossing about 100 yards in front of us. Most of these were the same tornadoes Ben Holcumb got. That was the most impressive cell I've ever seen in person... and its not even close. That thing looked like the mothership on steroids. Uploading video as we speak. Hopefully I can keep connection. Will link it when I get it up. Sweet Zack keep on updating and be careful man. Wow! Link to comment Share on other sites More sharing options...
SluggerWx Posted March 19, 2012 Share Posted March 19, 2012 Can someone explain to me how to read EHI... I believe this is correct - that Odessa is showing an EHI of 8 right now... Here's the data I'm looking at Link to comment Share on other sites More sharing options...
Indystorm Posted March 19, 2012 Share Posted March 19, 2012 PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE NORTH PLATTE NE 1128 PM CDT SUN MAR 18 2012 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0920 PM TORNADO 4 W NORTH PLATTE 41.13N 100.85W 03/18/2012 LINCOLN NE EMERGENCY MNGR REPORTED 15 TRAIN CARS FLIPPED OVER WITH EXTENSIVE DAMAGE TO PRIVATE VEHICLES ON THE PLOT. Looks like the rail yard definitely was hit. Link to comment Share on other sites More sharing options...
baroclinic_instability Posted March 19, 2012 Share Posted March 19, 2012 Happy to here everyone is alright Baro, any news for the tornado's path? We have a general idea of the path. There was also likely two down...possibly at the same time for a brief period. Extensive damage being reported west of town. Thankfully we have no fatalities at this time. What a crazy nite.... Link to comment Share on other sites More sharing options...
baroclinic_instability Posted March 19, 2012 Share Posted March 19, 2012 Thanks for the update Baro...A number of us were concerned for you both given how quickly that storm developed and moved. I was concerned for my own place as I was watching that couplet passed just west. We had confirmed tornadoes at that point...it was hard to focus for that brief time while taking calls/reports. Link to comment Share on other sites More sharing options...
Chinook Posted March 19, 2012 Share Posted March 19, 2012 Can someone explain to me how to read EHI... I believe this is correct - that Odessa is showing an EHI of 8 right now... Here's the data I'm looking at It is CAPE times storm relative helicity divided by 160,000. It is a composite index, showing two values used to assess thunderstorm strength, multiplied. (In this case, it is 1km storm relative helicity instead of the 3km variety.) Maybe you could think of it as (CAPE/1600 J/kg)*(SRH/100 m2/s2) There are other composite indicies using a multiplication of CAPE and Shear, and possibly other values: Supercell Composite Parameter Significant Tornado Parameter Craven-Brooks Index Significant Hail Parameter Derecho Parameter VGP Link to comment Share on other sites More sharing options...
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