Easy180
04-28-2012, 06:58 PM
Might be interesting in Bricktown tonight
View Full Version : Oklahoma Severe Weather Discussion - April 2012 Easy180 04-28-2012, 06:58 PM Might be interesting in Bricktown tonight venture 04-28-2012, 08:30 PM Latest HRRR guidance is pretty much on tap right now. Large supercell in NW TX right moving east should stay south of the Red River. HRRR is saying in the next hour we should see additional development from SW OK into NW TX. It is predicting what appears to be several supercells popping up and moving ENE/NE. That first wave will go through then a break as the storms in NW TX wll eventually take a turn and head north as storms develop north of the front. This will likely setup the heavy rain and some embedded severe hail/wind. We'll see if it verifies. venture 04-28-2012, 08:43 PM Storm developing in W a s h i t a county is get a decent hail core on it. Severe weather could be occuring soon in NW W a s h i t a, SE Custer and NW Caddo counties. Reminder the new chat room address: http://www.weatherspotlight.com/chat.html venture 04-28-2012, 09:20 PM First warning is up. Storm has a very interesting configuration...will need to watch it. BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORMAN OK 918 PM CDT SAT APR 28 2012 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL BLAINE COUNTY IN OKLAHOMA... NORTHWESTERN CADDO COUNTY IN OKLAHOMA... NORTHWESTERN CANADIAN COUNTY IN OKLAHOMA... EXTREME SOUTHEASTERN CUSTER COUNTY IN OKLAHOMA... UNTIL 1000 PM CDT * AT 917 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR HYDRO...MOVING EAST AT 20 MPH. venture 04-28-2012, 09:27 PM Rotation is increasing in the Caddo Co storm and it will be heading into the Metro Area / Canadian County here in the next half hour-ish. Large hail should be expected. venture 04-28-2012, 09:48 PM Keeping an eye on things. Rotation is pretty high up in the storm as it stands now. venture 04-28-2012, 10:09 PM 2nd cell getting its act together near Cordell in W a s h i t a County. Storms are moving east at 20-25. Tornado threat could increase as it nears I-34 as winds start to turn more east there. venture 04-28-2012, 10:35 PM Ww 201 tornado ok 290335z - 290700z axis..40 statute miles east and west of line.. 25sse fsi/fort sill ok/ - 35nw cqb/chandler ok/ ..aviation coords.. 35nm e/w /26ne sps - 36ese end/ hail surface and aloft..3 inches. Wind gusts..60 knots. Max tops to 500. Mean storm motion vector 25025. BULLETIN - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH OUTLINE UPDATE FOR WT 201 NWS STORM PREDICTION CENTER NORMAN OK 1035 PM CDT SAT APR 28 2012 TORNADO WATCH 201 IS IN EFFECT UNTIL 200 AM CDT FOR THE FOLLOWING LOCATIONS OKC015-017-027-031-033-049-051-067-073-081-083-087-109-119-125- 137-141-290700- /O.NEW.KWNS.TO.A.0201.120429T0335Z-120429T0700Z/ OK . OKLAHOMA COUNTIES INCLUDED ARE CADDO CANADIAN CLEVELAND COMANCHE COTTON GARVIN GRADY JEFFERSON KINGFISHER LINCOLN LOGAN MCCLAIN OKLAHOMA PAYNE POTTAWATOMIE STEPHENS TILLMAN ATTN...WFO...OUN... venture 04-28-2012, 10:40 PM http://www.spc.noaa.gov/products/watch/ww0201_radar.gif URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 201 NWS STORM PREDICTION CENTER NORMAN OK 1035 PM CDT SAT APR 28 2012 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF SOUTHWEST THROUGH CENTRAL OKLAHOMA EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1035 PM UNTIL 200 AM CDT. SEVERAL TORNADOES ISOLATED INTENSE TORNADOES POSSIBLE SCATTERED DAMAGING WINDS TO 70 MPH SCATTERED LARGE HAIL ISOLATED HAIL TO 3.0 INCHES IN DIAMETER POSSIBLE THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 40 STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES SOUTH SOUTHEAST OF FORT SILL OKLAHOMA TO 35 MILES NORTHWEST OF CHANDLER OKLAHOMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1). 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 200... DISCUSSION...SUPERCELLS THAT FORMED JUST W OF SW-NE FRONT THROUGH SW/CNTRL OK EXPECTED TO CONTINUE MOVING ENE THROUGH EARLY SUN. AS THE STORMS ENCOUNTER WARMER/MORE MOIST AIR E OF BOUNDARY...INCREASE IN THETA-E MAY SUFFICIENTLY ENHANCE LOW LVL MESO STRENGTH TO POSE A RISK FOR TORNADOES...IN ADDITION TO ON-GOING RISK FOR LARGE HAIL/HIGH WIND. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 25025. TORNADO WATCH PROBABILITIES FOR WT 0201 NWS STORM PREDICTION CENTER NORMAN OK 1038 PM CDT SAT APR 28 2012 WT 0201 PROBABILITY TABLE: PROB OF 2 OR MORE TORNADOES : 40% PROB OF 1 OR MORE STRONG /F2-F5/ TORNADOES : 30% PROB OF 10 OR MORE SEVERE WIND EVENTS : 40% PROB OF 1 OR MORE WIND EVENTS >= 65 KNOTS : 20% PROB OF 10 OR MORE SEVERE HAIL EVENTS : 60% PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 30% PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : 90% && ATTRIBUTE TABLE: MAX HAIL /INCHES/ : 3.0 MAX WIND GUSTS SURFACE /KNOTS/ : 60 MAX TOPS /X 100 FEET/ : 500 MEAN STORM MOTION VECTOR /DEGREES AND KNOTS/ : 25025 PARTICULARLY DANGEROUS SITUATION : NO venture 04-28-2012, 10:50 PM http://www.spc.noaa.gov/products/md/mcd0617.gif MESOSCALE DISCUSSION 0617 NWS STORM PREDICTION CENTER NORMAN OK 1047 PM CDT SAT APR 28 2012 AREAS AFFECTED...CNTRL AND WRN OKS INTO NWRN TX CONCERNING...SEVERE THUNDERSTORM WATCH 200... VALID 290347Z - 290545Z THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 200 CONTINUES. SCATTERED SUPERCELLS EXIST FROM NWRN TX INTO CNTRL OK. TWO CELLS WERE N OF THE SURFACE BOUNDARY OVER CNTRL OK...BUT WERE MOVING MOSTLY IN AN EWD DIRECTION. ALTHOUGH CELLS ARE FIGHTING SOME CAPPING AND CIN...FAVORABLE WIND PROFILES ARE LIKELY TO KEEP THESE CELLS GOING FOR A WHILE. AS THEY APPROACH THE SURFACE FRONT...THEY WILL ENCOUNTER SLIGHTER WARMER AND MOISTER LOW LEVEL AIR MASS...WHICH COULD HELP IN VERTICAL ACCELERATIONS DOWN LOW. THIS...ALONG WITH MORE THAN ADEQUATE LOW LEVEL SHEAR...COULD RESULT IN A BRIEF TORNADO. TO THE S...LARGE HAIL WAS THE MAIN THREAT OVER NWRN TX WHERE LOW LEVEL T/TD SPREADS WERE LARGER. SOME OF THESE CELLS WERE LEFT MOVING...AND WILL EXIT THE WATCH INTO PORTIONS OF THE ERN TX PANHANDLE...BUT AN ADDITIONAL WATCH IS NOT EXPECTED AT THIS TIME. ..JEWELL.. 04/29/2012 venture 04-29-2012, 08:58 PM Catching up a bit here... http://www.spc.noaa.gov/products/watch/ww0205_radar.gif URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 205 NWS STORM PREDICTION CENTER NORMAN OK 805 PM CDT SUN APR 29 2012 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF SOUTH CENTRAL AND SOUTHEASTERN KANSAS WESTERN AND CENTRAL MISSOURI NORTHERN OKLAHOMA EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 805 PM UNTIL 300 AM CDT. SCATTERED DAMAGING WINDS TO 70 MPH SCATTERED LARGE HAIL TO 2.0 INCHES IN DIAMETER ISOLATED TORNADOES THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 160 STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH NORTHEAST OF CHANUTE KANSAS TO 40 MILES SOUTH SOUTHWEST OF ENID OKLAHOMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5). 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. OTHER WATCH INFORMATION...CONTINUE...WW 203...WW 204... DISCUSSION...TSTMS...INCLUDING A FEW SUPERCELLS...EXPECTED TO INCREASE IN COVERAGE AND STRENGTH ALONG DIFFUSE CORRIDOR OF WAA/CONFLUENCE FROM N CNTRL OK NEWD INTO SE KS AND SW MO. AT THE SAME TIME...SW KS FORWARD-PROPAGATING MCS EXPECTED TO CONTINUE MOVING E OR PERHAPS ESE INTO S CNTRL KS AND NW OK...POSSIBLY WITH SOME INCREASE IN STRENGTH AS IT ENCOUNTERS RICHER MOISTURE SUPPLY WITH EWD EXTENT. BOTH AREAS OF STORMS COULD YIELD SVR HAIL/LOCALLY DMGG WIND. LOW LVL WINDS ARE NOT EXPECTED TO APPRECIABLY INCREASE AFTER NIGHTFALL. HOWEVER...TORNADO THREAT WILL BE NON-ZERO...MAINLY WITH WAA ACTIVITY...GIVEN MOIST LOW LVL ENVIRONMENT/MODEST LOW LVL DIRECTIONAL SHEAR. A MORE WIDESPREAD TORNADO THREAT WOULD APPEAR TO REQUIRE FAVORABLE STORM-SCALE/BOUNDARY INTERACTIONS THAT ARE NOT APPARENT ATTM. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR 25030. http://www.spc.noaa.gov/products/md/mcd0624.gif MESOSCALE DISCUSSION 0624 NWS STORM PREDICTION CENTER NORMAN OK 0733 PM CDT SUN APR 29 2012 AREAS AFFECTED...SWRN/S-CNTRL KS...ERN OK PANHANDLE...NRN TX PANHANDLE...NWRN OK CONCERNING...SEVERE THUNDERSTORM WATCH 203... VALID 300033Z - 300200Z THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 203 CONTINUES. BOWING MCS WAS LOCATED FROM SWRN KS INTO FAR NERN NM AT 0015Z. AIRMASS IN THE IMMEDIATE VICINITY OF THIS ACTIVITY IS CHARACTERIZED BY TEMPERATURES IN THE MID 70S AND DEWPOINTS IN THE MID TO UPR 40S. SURFACE OBSERVATIONS ALSO DEPICT A STRENGTHENING COLD POOL ASSOCIATED WITH THE MCS...WITH A 20+ F TEMPERATURE CHANGE LOCATED ACROSS THE GUST FRONT. DURING THE NEXT FEW HRS...SHORT-TERM MODEL GUIDANCE INDICATES A 20-30 KT SLY LLJ WILL DEVELOP OVER THE SRN PLAINS...WHICH WILL AID IN THE N-NWWD ADVECTION OF HIGHER THETA-E AIR LOCATED OVER OK AND NWRN TX...WHERE SURFACE DEWPOINTS ARE IN THE 60S. THIS MAY FAVOR MCS PROPAGATION TOWARD THE SE INTO THE MORE UNSTABLE AIRMASS. IF THIS TAKES PLACE...SVR WEATHER THREAT WILL SPREAD INTO S-CNTRL KS...NWRN OK AND THE NRN TX PANHANDLE...AND MAY REQUIRE EITHER SPATIAL EXTENSION OF WW 203...OR A NEW DOWNSTREAM WW. ..GARNER.. 04/30/2012 ATTN...WFO...ICT...OUN...DDC...AMA...ABQ... venture 04-29-2012, 09:12 PM Very large hail keeps developing in the line in Northern OK. HRRR continues to show storms forming into a large complex and diving Southeast overnight. Damaging wind will be main threat with it and then heavy rain. venture 04-29-2012, 10:04 PM Fyi bulletin - eas activation requested tornado warning national weather service norman ok 959 pm cdt sun apr 29 2012 the national weather service in norman has issued a * tornado warning for... Southwestern kay county in oklahoma... * until 1030 pm cdt * at 954 pm cdt...national weather service meteorologists detected a severe thunderstorm capable of producing a tornado. This dangerous storm was located near billings...moving northeast at 25 mph. * locations impacted include... Tonkawa. venture 04-30-2012, 08:13 AM Slight Risk today for much of the state. Tornado risk is mainly Western OK along with very large hail. Hail/Damaging Winds possible in Central areas later. As it looks now...always subject to change. :) DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0725 AM CDT MON APR 30 2012 VALID 301300Z - 011200Z ...THERE IS A SLGT RISK OF SVR TSTMS OVER PARTS OF THE CENTRAL AND SOUTHERN PLAINS... ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS PORTIONS OF THE MID MS AND OH VALLEYS... MORNING WATER VAPOR IMAGERY SHOWS BROAD CYCLONIC FLOW OVER MOST OF THE WESTERN...PLAINS...AND MIDWEST STATES. A SERIES OF SHORTWAVE TROUGHS EMBEDDED IN THIS FLOW REGIME WILL TRACK ACROSS THE CENTRAL PLAINS INTO THE OH VALLEY...PROVIDING A AXIS OF SHOWERS AND THUNDERSTORMS FROM WEST TX INTO WV/PA. ...CENTRAL/SOUTHERN PLAINS... WIDESPREAD THUNDERSTORMS HAVE BEEN ONGOING OVERNIGHT ACROSS PARTS OF KS/OK/MO. THESE STORMS HAVE RESULTED IN A WELL-DEFINED OUTFLOW BOUNDARY THAT EXTENDS ROUGHLY FROM AMA-SPS-ADM-FSM. EASTERLY LOW LEVEL WINDS ON THE NORTH SIDE OF THE BOUNDARY WILL HELP TO TRANSPORT AMPLE MOISTURE WESTWARD INTO THE TX PANHANDLE. MOST MODEL SOLUTIONS AGREE ON STORMS FORMING ALONG THE DRYLINE/REMNANT OUTFLOW BOUNDARY BETWEEN 19-22Z...AS A WEAK SHORTWAVE TROUGH NOW NEAR THE 4-CORNERS AREA APPROACHES THE REGION. THE 12Z AMA RAOB ALSO SUPPORTS RATHER EARLY INITIATION WITH STEEP LAPSE RATES AND ONLY A MINIMAL CAP. STRONG DEEP LAYER EFFECTIVE SHEAR AND MEAN FLOW ORTHOGONAL TO DRYLINE WILL PROMOTE DISCRETE SUPERCELL DEVELOPMENT WITH VERY LARGE HAIL POSSIBLE. THE TORNADO POTENTIAL WILL BE DEPENDENT ON THE EVOLUTION OF THE REMNANT OUTFLOW BOUNDARY...BUT THERE DOES APPEAR TO BE SOME RISK OF A FEW TORNADOES DURING THE EVENING FROM SOUTHWEST KS INTO THE TX PANHANDLE AND SOUTHWEST OK. DURING THE EVENING...STORMS MAY GROW UPSCALE AND SPREAD EASTWARD ACROSS PORTIONS OF WESTERN/CENTRAL OK WITH AN CONTINUED RISK OF HAIL AND DAMAGING WINDS. Roadhawg 04-30-2012, 08:33 AM I noticed that KOCO spent from 10 to 10:30 doing nothing but covering the storm activity. ou48A 04-30-2012, 12:09 PM Mm Bunty 04-30-2012, 12:09 PM I noticed that KOCO spent from 10 to 10:30 doing nothing but covering the storm activity. I couldn't stick with it that long, because about all the weathermen were doing was stressing the tornado warning in the Ponca City area. So I changed it to KFOR, which wasn't then stressing the weather. ou48A 04-30-2012, 12:12 PM http://forecast.weather.gov/showsigw...eather+Outlook HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NORMAN OK 1155 AM CDT MON APR 30 2012 THUNDERSTORM OUTLOOK... THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT ACROSS PORTIONS OF OKLAHOMA AND WESTERN NORTH TEXAS. LOCATION... THE SLIGHT RISK AREA INCLUDES ALL OF CENTRAL... WESTERN AND SOUTHEAST OKLAHOMA AND WESTERN NORTH TEXAS. TIMING... THE MOST LIKELY TIME FOR SEVERE THUNDERSTORMS WILL BE FROM EARLY THIS AFTERNOON TO AROUND MIDNIGHT. IMPACTS... VERY LARGE HAIL... LARGER THAN BASEBALLS...DAMAGING WINDS GREATER THAN 65 MPH... AND ISOLATED TORNADOES. HEAVY RAIN AND LOCALIZED FLOODING WILL ALSO BE A CONCERN... ESPECIALLY OVER THE NORTHERN THIRD TO HALF OF OKLAHOMA. RECOMMENDED ACTIONS... STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS THIS AFTERNOON AND EVENING. DISCUSSION... SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL BE POSSIBLE ALONG AND NEAR A RESIDUAL LOW LEVEL BOUNDARY ACROSS SOUTHERN OKLAHOMA AND WESTERN NORTH TEXAS THIS AFTERNOON. AS INSTABILITY INCREASES DURING THE AFTERNOON HOURS... THERE IS A RISK FOR A FEW STRONG TO SEVERE STORMS TO DEVELOP ALONG THIS BOUNDARY. OTHER STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP BY MID-AFTERNOON ALONG AND TO THE EAST OF A DRYLINE THAT WILL BE LOCATED ACROSS THE CENTRAL PORTIONS OF THE TEXAS AND OKLAHOMA PANHANDLES. THIS WILL OCCUR AS A DISTURBANCE IN THE MID-LEVELS OF THE ATMOSPHERE MOVES OUT OF THE ROCKIES INTO THE PLAINS. THESE STORMS WILL THEN DRIFT EAST TOWARD WESTERN SECTIONS OF OKLAHOMA AND WESTERN NORTH TEXAS BY LATE THIS AFTERNOON AND THIS EVENING. DURING THE EVENING HOURS THESE STORMS WILL POSE A THREAT OF VERY LARGE HAIL... DAMAGING WIND GUSTS AS WELL AS ISOLATED TORNADOES. THROUGH THE EVENING... THE STORMS ARE EXPECTED TO CONTINUE TO MOVE EAST TOWARD CENTRAL SECTIONS OF OKLAHOMA WITH A CONTINUING RISK OF HAIL LARGER THE GOLF BALLS AND DAMAGING THUNDERSTORM WINDS... AS WELL AS VERY HEAVY RAIN. PROBABILITY TABLE... VALID THROUGH 700 AM CDT TUESDAY MAY 1. PROBABILITY OF THUNDERSTORMS OCCURRING IN THE NWS NORMAN COUNTY WARNING AREA...100 PERCENT. PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...70 PERCENT ou48A 04-30-2012, 12:27 PM http://www.facebook.com/ATsFans Aaron Tuttle Meteorologist (weatherman) 2 hours ago Severe Weather Update: Last night's storms released an undular bore which helped to erode most of the CAP across OK/N TX. The shear profile supports tornadic storm development across a good region of OK and E TX panhandle and NNW TX. There are a couple of outflow boundaries across C and S OK that trail back in the TX Panhandle. Expect semi-early development this afternoon, say 2pm as we start to approach max heating. Scattered storms should develop along these boundaries. Due to the moisture in the atmosphere, a lot of these supercells will be high precipitation and would quickly cause a tornado to become rain-wrapped which would make it hard to see. Also, large hail and damaging winds are in order. The most likely area for tornadic development is the E TX panhandle W, SW, and C OK from afternoon through evening. Stay weather aware today! venture 04-30-2012, 12:46 PM Things are not very clean cut today. HRRR showing storms firing over south central ok by 2pm and elsewhere in central ok by 4pm. Things should lift north quick and mostly stick to northern ok. Then it has and mcs develop over ks and drops into north central ok by 10pm and drops southeast...mainly impacting ne ok. Not sure how accurate this forecast is right now. The boundary over central/southern ok is washing out pretty fast, but could still impact things later. Main show looks to be well out west as it stands now. Bunty 04-30-2012, 01:09 PM Speaking of northern Oklahoma, watch the changing weather at ad free http://stillwaterweather.com http://www.stillwaterweather.com/wxgraphic.php?type=banner_big (http://www.stillwaterweather.com/) venture 04-30-2012, 07:50 PM Tornado Watch run down. We have had 3 confirmed in Northern OK so far for today. http://www.spc.noaa.gov/products/watch/ww0214_radar.gif THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF FAR NORTHWEST ARKANSAS SOUTH CENTRAL AND SOUTHEASTERN KANSAS SOUTHWEST MISSOURI NORTHERN OKLAHOMA EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 730 PM UNTIL 200 AM CDT. SEVERAL TORNADOES ISOLATED INTENSE TORNADOES POSSIBLE SCATTERED DAMAGING WINDS ISOLATED WIND GUSTS TO 65 MPH POSSIBLE WIDESPREAD LARGE HAIL ISOLATED HAIL TO 2.5 INCHES IN DIAMETER POSSIBLE DISCUSSION...TSTMS...INCLUDING A FEW SUSTAINED SUPERCELLS...EXPECTED TO MOVE/DEVELOP ESE ALONG WARM FRONT FROM SW AND S CNTRL KS INTO PARTS OF SE KS AND NRN/NERN OK LATER THIS EVE AS SLY LLJ STRENGTHENS AND SLIGHTLY VEERS IN RESPONSE TO BOTH DIURNAL CYCLE AND CONTINUED EWD MOVEMENT OF UPR IMPULSE NOW ENTERING SW KS. MOIST LWR TROPOSPHERIC ENVIRONMENT /PER 00Z OKC RAOB/ AND MODEST EXPECTED INCREASE IN WLY 700-500 MB FLOW SUGGEST POTENTIAL FOR A COUPLE TORNADOES IN ADDITION TO LARGE HAIL/DMGG WIND. WIND THREAT MAY INCREASE RELATIVE TO OTHER SVR THREATS LATER TNGT IF STORMS EVOLVE INTO A SQLN/QLCS...AS MIGHT OCCUR GIVEN CURRENT CONCENTRATION OF STORMS NOW ENTERING S CNTRL KS FROM THE DDC AREA. http://www.spc.noaa.gov/products/watch/ww0212_radar.gif THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF SOUTHWEST KANSAS NORTHERN AND WESTERN OKLAHOMA THE EASTERN TEXAS PANHANDLE AND NORTHWEST TEXAS EFFECTIVE THIS MONDAY AFTERNOON AND TUESDAY MORNING FROM 545 PM UNTIL 200 AM CDT. SEVERAL TORNADOES ISOLATED INTENSE TORNADOES POSSIBLE SCATTERED DAMAGING WINDS ISOLATED WIND GUSTS TO 65 MPH POSSIBLE WIDESPREAD LARGE HAIL HAIL TO 3.0 INCHES IN DIAMETER LIKELY DISCUSSION...WIND PROFILES INVOF TSTMS FORMING ALONG ARCED NW-SE OUTFLOW BOUNDARY/WARM FRONTAL SEGMENT IN SW KS/NW OK APPEAR FAVORABLE FOR LOW LVL MESOS/TORNADOES GIVEN RELATIVELY STEEP LOW LVL LAPSE RATES/MOISTURE AVAILABILITY. THESE STORMS SHOULD MOVE/DEVELOP PREFERENTIALLY ESE TO SE ALONG BOUNDARY INTO OK...WHERE OTHER STORMS MAY FORM IN THE NEXT SEVERAL HOURS. TORNADO THREAT ALSO MAY INCREASE A BIT LATER THIS EVE THROUGH MID/LATE EVE IN THE ERN TX PANHANDLE/NW TX...AS LOW LVL SLY FLOW INCREASES IN RESPONSE TO DIURNAL CYCLE AND TO CONTINUED EWD MOTION OF NM UPR IMPULSE/BELT OF 30-40 KT WLY 700 MB FLOW. venture 04-30-2012, 07:52 PM HRRR's latest run shows complex over South Central KS will start to move SE some and could impact NE OK. Supercells in the Texas PH will move into SW OK before dying out in the next few hours. Metro impact look very low right now. ou48A 04-30-2012, 08:38 PM New severe storms are developing in SW and western OK Gary England says they will move in the direction of the metro… venture 04-30-2012, 08:42 PM I'll be monitoring the chat room for most of the evening incase things get crazy to the SW. ou48A 04-30-2012, 08:51 PM Tornado moving in on the Medford area. venture 04-30-2012, 09:14 PM In the chat now...large tornado north near Medford. New warned storm to our SW. ou48A 04-30-2012, 09:42 PM Maybe a rain-wrapped Tornado now heading into the Deer Creek, Nardin, and Blackwell areas. venture 04-30-2012, 09:50 PM Bulletin - immediate broadcast requested tornado watch outline update for wt 215 nws storm prediction center norman ok 950 pm cdt mon apr 30 2012 tornado watch 215 is in effect until 200 am cdt for the following locations okc015-017-019-027-031-033-037-049-051-063-067-073-081-083-085- 087-099-107-109-111-119-123-125-133-137-010700- /o.new.kwns.to.a.0215.120501t0250z-120501t0700z/ ok . Oklahoma counties included are caddo canadian carter cleveland comanche cotton creek garvin grady hughes jefferson kingfisher lincoln logan love mcclain murray okfuskee oklahoma okmulgee payne pontotoc pottawatomie seminole stephens txc077-485-487-010700- /o.new.kwns.to.a.0215.120501t0250z-120501t0700z/ tx . Texas counties included are clay wichita wilbarger venture 04-30-2012, 10:01 PM http://www.spc.noaa.gov/products/watch/ww0215_radar.gif URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 215 NWS STORM PREDICTION CENTER NORMAN OK 950 PM CDT MON APR 30 2012 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF CENTRAL AND SOUTHERN OKLAHOMA WESTERN NORTH TEXAS EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 950 PM UNTIL 200 AM CDT. SEVERAL TORNADOES ISOLATED INTENSE TORNADOES POSSIBLE WIDESPREAD DAMAGING WINDS ISOLATED WIND GUSTS TO 80 MPH POSSIBLE WIDESPREAD LARGE HAIL ISOLATED HAIL TO 2.5 INCHES IN DIAMETER POSSIBLE THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES SOUTH SOUTHEAST OF FORT SILL OKLAHOMA TO 60 MILES NORTHWEST OF CHANDLER OKLAHOMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5). 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 210...WW 211...WW 212...WW 213...WW 214... DISCUSSION...SUPERCELL COMPLEX IN SW OK EXPECTED MOVE/DEVELOP E OR ESE THROUGH EARLY TUE AS LLJ CONTINUES TO STRENGTHEN AND SLIGHTLY VEER IN RESPONSE TO PASSING UPR IMPULSE NOW OVER SW KS. QUALITY OF MOISTURE...STEEP MID LVL LAPSE RATES...AND 30+ KT WLY 700 MB FLOW SUGGEST A CONTINUED RISK FOR A FEW LOW LVL MESOS AND POSSIBLE TORNADOES...IN ADDITION TO A CONTINUED RISK FOR LARGE HAIL AND AN INCREASING RISK FOR DMGG WIND. FARTHER N...SUSTAINED MOIST SLY FLOW SUGGESTS THAT OTHER STORMS MAY FORM SW OF CURRENT N CNTRL OK SUPERCELL COMPLEX. IF THIS DOES OCCUR...THE STORMS SHOULD MOVE MAINLY EWD...AFFECTING AREAS FROM ENID S AND SE INTO THE OKC AND STILLWATER AREAS WITH LARGE HAIL...DMGG WIND...AND PERHAPS A COUPLE TORNADOES BEFORE ACTIVITY EVOLVES INTO AN MCS. ou48A 04-30-2012, 10:02 PM If you know anyone in the Blackwell ok area who may already be in bed or doesn’t pay attention to the weather you may consider calling them about this Tornado ou48A 04-30-2012, 10:18 PM Tornado is just west of I-35 along HY11 Very strong radar tornado signature venture 04-30-2012, 10:31 PM From the chat here is a comment I just made... Storm to the SW of the Metro in Caddo Co is starting to move SE and has a good gust front with it...so outflow dominant and almost zero chance of a tornado. venture 04-30-2012, 10:55 PM Like discussed earlier...MCS formation is well underway. Northern storms will continue to form a severe MCS and move through NE OK. Comma head circulation will likely continue and sporadic tornadoes will remain possible. Outflow boundary is extended out ahead of it from just south of the circulation so most of the southern portion is all outflow dominate. Southern storms continue to do random things. Small bow complex in Caddo/Comanche Counties was move SE and is now moving more east. This could post a thread to areas from Norman on south. Strong winds and some hail possible. The second portion of the SW OK storms is intensifying especially right along the Red River. Radar hail estimates over 3.50" now showing up and damaging winds/strong rotation also being detected. Between the two complex we have seen some showers try to develop and fill things out. Winds of 55 mph is possible with these. venture 04-30-2012, 11:34 PM Bulletin - immediate broadcast requested severe thunderstorm warning national weather service norman ok 1132 pm cdt mon apr 30 2012 the national weather service in norman has issued a * severe thunderstorm warning for... Southeastern canadian county in oklahoma... Extreme northwestern cleveland county in oklahoma... Extreme northern grady county in oklahoma... Extreme northwestern mcclain county in oklahoma... Southwestern oklahoma county in oklahoma... * until 1215 am cdt * at 1131 pm cdt...national weather service meteorologists detected a severe thunderstorm capable of producing quarter size hail and destructive winds in excess of 70 mph. This storm was located near minco...moving northeast at 30 mph. * locations impacted include... Moore...bethany...mustang...warr acres...tuttle... Minco and valley brook. venture 05-01-2012, 12:04 AM Bulletin - immediate broadcast requested severe thunderstorm warning national weather service norman ok 1157 pm cdt mon apr 30 2012 the national weather service in norman has issued a * severe thunderstorm warning for... Extreme north central cleveland county in oklahoma... Lincoln county in oklahoma... Oklahoma county in oklahoma... Extreme northern pottawatomie county in oklahoma... * until 1245 am cdt * at 1154 pm cdt...national weather service meteorologists detected a severe thunderstorm capable of producing quarter size hail and damaging winds in excess of 60 mph. This storm was located near choctaw...moving east at 35 mph. * locations impacted include... Choctaw...harrah...spencer...mcloud...jones...nico ma park... Meeker...wellston... Warwick and aydelotte. venture 05-01-2012, 10:00 AM Things today look a bit quieter. Will get the may thread posted this evening with a few more tweaks to the info displayed. Slight risk possible next two days. |