venture
03-30-2013, 08:13 PM
Caddo County storm is splitting like the earlier one in Comanche County. Northern cell is going to move into Tuttle here shortly.
View Full Version : Oklahoma Weather Discussion - February/March 2013 venture 03-30-2013, 08:13 PM Caddo County storm is splitting like the earlier one in Comanche County. Northern cell is going to move into Tuttle here shortly. venture 03-30-2013, 08:16 PM Elevated cell now between Hwy 9 and Etoawah Road...near 96th Ave SE south of Lake T Bird. Mainly just a lot of noise and lightning right now. Another cell going up between Shawnee and Tecumseh. Cell moving towards Tuttle has hail estimated at 0.65" right now. Hail core is on the Northern side of the storm. http://www.spc.noaa.gov/products/md/mcd0347.gif MESOSCALE DISCUSSION 0347 NWS STORM PREDICTION CENTER NORMAN OK 0814 PM CDT SAT MAR 30 2013 AREAS AFFECTED...SRN OK...FAR N TX CONCERNING...SEVERE THUNDERSTORM WATCH 68... VALID 310114Z - 310245Z THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 68 CONTINUES. SUMMARY...THE THREAT FOR ISOLATED LARGE HAIL AND LOCALIZED STRONG WIND GUSTS CONTINUES NEAR-TERM BUT SHOULD GRADUALLY DIMINISH THIS EVENING AS NOCTURNAL COOLING OCCURS WITHIN A VERY WEAKLY-FORCED ENVIRONMENT. DISCUSSION...A CONVOLUTED SURFACE PATTERN PERSISTS WITH SEVERAL SMALL-SCALE CONVECTIVE OUTFLOWS AND PRE-FRONTAL TROUGHS AHEAD OF A STRONGER COLD FRONTAL SURGE EXPECTED LATER TONIGHT. MODIFIED 00Z FWD RAOB AND PURCELL OK PROFILER SUGGESTS PRESENCE OF 1500 J/KG MLCAPE AMIDST 35-40 KT DEEP-LAYER SHEAR WILL CONTINUE TO SUPPORT ISOLATED SUPERCELLS FROM ALONG THE RED RIVER NEWD INTO ERN OK. HOWEVER...ANEMIC LOW-LEVEL FLOW...EVEN DIFFLUENT IN PARTS OF S-CNTRL OK/N-CNTRL TX...SHOULD REMAIN THE PRIMARY LIMITING FACTOR TO RE-INTENSIFICATION/SUSTENANCE OF LARGE HAIL POTENTIAL BEYOND THE NEXT COUPLE OF HOURS AS THE BOUNDARY LAYER COOLS AND MLCIN SLOWLY INCREASES. THIS SCENARIO IS SUPPORTED BY 21-22Z HRRR RUNS WHICH DEPICT CONVECTION DIMINISHING SUBSTANTIALLY BY 03-04Z. ..GRAMS.. 03/31/2013 Dustin 03-30-2013, 08:17 PM That radar view is really cool venture 03-30-2013, 08:29 PM Updated warning for Grady storm. BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORMAN OK 825 PM CDT SAT MAR 30 2013 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN GRADY COUNTY IN CENTRAL OKLAHOMA... * UNTIL 915 PM CDT * AT 820 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM LOCATED 3 MILES SOUTHWEST OF TUTTLE MOVING EAST AT 15 MPH. ANOTHER SEVERE THUNDERSTORM WAS LOCATED 3 MILES WEST OF POCASSET...AND MOVING SOUTHEAST AT 15 MPH. HAZARDS IN THE WARNING INCLUDE... HALF DOLLAR SIZE HAIL... DAMAGING WINDS IN EXCESS OF 60 MPH... * LOCATIONS IMPACTED INCLUDE... CHICKASHA...TUTTLE...AMBER...POCASSET...MIDDLEBERG AND BRIDGE CREEK. Servicetech571 03-30-2013, 08:31 PM That radar view is really cool +1 venture 03-30-2013, 08:45 PM Bigger image showing hail cores increasing around Bridge Creek and the one moving into Chickasha. http://www.weatherspotlight.com/screencap/ktlx_20130331_grab1.png venture 03-30-2013, 08:47 PM New watch NE. http://www.spc.noaa.gov/products/watch/ww0069_radar.gif URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 69 NWS STORM PREDICTION CENTER NORMAN OK 850 PM CDT SAT MAR 30 2013 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHWEST ARKANSAS EASTERN OKLAHOMA EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 850 PM UNTIL 400 AM CDT. WIDELY SCATTERED DAMAGING WINDS ISOLATED WIND GUSTS TO 70 MPH POSSIBLE WIDELY SCATTERED LARGE HAIL ISOLATED HAIL TO 2.0 INCHES IN DIAMETER POSSIBLE ISOLATED TORNADOES THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES SOUTH SOUTHEAST OF MCALESTER OKLAHOMA TO 35 MILES NORTH NORTHWEST OF FAYETTEVILLE ARKANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9). 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 66...WW 68... DISCUSSION...TSTMS HAVE RECENTLY INCREASED IN COVERAGE AND INTENSITY NEAR AND N OF TULSA IN ADVANCE OF A COLD FRONT SETTLING SWD THROUGH NRN OK. AMBIENT AIR MASS REMAINS RELATIVELY WARM AND MOIST WITH MLCAPE ESTIMATED AROUND 1000 J/KG. MOREOVER...THE TULSA VAD HAS SHOW A STEADY STRENGTHENING OF SLY WINDS BELOW 1 KM WHICH IS RESULTING IN AN ENLARGED HODOGRAPH WITH MORE THAN SUFFICIENT SHEAR FOR SUPERCELLS. WHILE A BRIEF TORNADO IS POSSIBLE...LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY HAZARDS AS STORMS SPREAD SEWD ACROSS THE WATCH AREA. 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 500. MEAN STORM MOTION VECTOR 31025. ou48A 03-30-2013, 08:47 PM +1 +2 venture 03-30-2013, 08:57 PM This is for the weakening storm moving in. SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 855 PM CDT SAT MAR 30 2013 OKZ028-029-310215- MCCLAIN OK-CLEVELAND OK- 855 PM CDT SAT MAR 30 2013 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MCCLAIN AND WEST CENTRAL CLEVELAND COUNTIES UNTIL 915 PM CDT... AT 852 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR NEWCASTLE... MOVING EAST-SOUTHEAST AT 30 MPH. HAZARDS INCLUDE... HAIL UP TO THE SIZE OF NICKELS... WIND GUSTS TO 40 MPH... venture 03-30-2013, 09:13 PM I know we have some Eastern OK folks here, so I'll relay this... BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TULSA OK 910 PM CDT SAT MAR 30 2013 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * TORNADO WARNING FOR... WESTERN CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA... NORTHEASTERN MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA... SOUTHEASTERN WAGONER COUNTY IN NORTHEAST OKLAHOMA... * UNTIL 945 PM CDT * AT 907 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED 3 MILES NORTHEAST OF TULLAHASSEE...MOVING SOUTHEAST AT 30 MPH. * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...OKAY AND FORT GIBSON. http://www.weatherspotlight.com/screencap/kinx_20130331_0207.png venture 03-30-2013, 09:20 PM Things in Central OK are settling down. Last storm SE of Chickasha is still severe but weakening as well. That'll wrap up the updates for now. :) venture 03-30-2013, 11:30 PM Latest HRRR has storms start to fire between 1 and 3AM over the Western Half of the state (mainly I-40 and north). Quickly evolving into a large MCS diving to the ESE. Loop (http://rapidrefresh.noaa.gov/HRRR/jsloopLocalDiskDateDomain.cgi?dsKeys=hrrr_jet:&runTime=2013033101&plotName=cref_t5sfc&fcstInc=60&numFcsts=16&model=hrrr&ptitle=HRRR%20Model%20Fields%20-%20Experimental&maxFcstLen=15&fcstStrLen=-1&resizePlot=1&domain=t5) Bunty 03-31-2013, 12:47 AM Latest HRRR has storms start to fire between 1 and 3AM over the Western Half of the state (mainly I-40 and north). Quickly evolving into a large MCS diving to the ESE. Loop (http://rapidrefresh.noaa.gov/HRRR/jsloopLocalDiskDateDomain.cgi?dsKeys=hrrr_jet:&runTime=2013033101&plotName=cref_t5sfc&fcstInc=60&numFcsts=16&model=hrrr&ptitle=HRRR%20Model%20Fields%20-%20Experimental&maxFcstLen=15&fcstStrLen=-1&resizePlot=1&domain=t5) And so OKC has a 90% chance of showers and thunderstorms mainly after 2 am. Some may be severe. Achilleslastand 03-31-2013, 12:56 AM And so OKC has a 90% chance of showers and thunderstorms mainly after 2 am. Some may be severe. Bectcha a pizza it misses us completely. venture 03-31-2013, 01:20 AM Update HRRR forecast from 5AM. One storm is out there right now moving into Roger Mills County, but so far that's it. Looks like main batch of storms gets going around 3AM in West Central OK. http://rapidrefresh.noaa.gov/HRRR/from_jet/hrrr_jet/2013033103/t5/cref_t5sfc_f07.png venture 03-31-2013, 01:40 AM http://www.spc.noaa.gov/products/md/mcd0349.gif MESOSCALE DISCUSSION 0349 NWS STORM PREDICTION CENTER NORMAN OK 0113 AM CDT SUN MAR 31 2013 AREAS AFFECTED...PORTIONS EXTREME ERN TX PANHANDLE...WRN/SRN OK. CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 69... VALID 310613Z - 310715Z PROBABILITY OF WATCH ISSUANCE...40 PERCENT SUMMARY...ISOLATED TSTM STRENGTHENING OVER HEMPHILL COUNTY TX AS OF 06Z LIKELY IS FIRST MANIFESTATION OF CONVECTIVE EVENT THAT SHOULD DEVELOP AND GROW UPSCALE ACROSS WRN OK THROUGH 10Z...AND MOVE ESEWD ACROSS PORTIONS CENTRAL/SRN OK. MAIN THREAT IS LARGE HAIL. TSTMS WITH ACCESS TO PREFRONTAL/WARM-SECTOR AIR NEAR SFC ALSO MAY PRODUCE STG/ISOLATED DAMAGING GUSTS. DISCUSSION...SFC MESOANALYSIS SHOWS FRONT FROM SRN PORTIONS TUL AREA SWWD INVOF OUN THEN WWD PAST CSM TO NEAR AMA. BOUNDARY SHOULD ACCELERATE SEWD AS STRENGTHENING COLD FRONT THROUGH REMAINDER MORNING WITH WEAK FRONTAL-WAVE LOW POSSIBLE OVER NW TX. STRENGTHENING FRONTOGENETIC FORCING IS FCST TO IMPINGE ON PROGRESSIVELY GREATER WARM-SECTOR MOISTURE WITH SEWD EXTENT. ALONG/AHEAD OF FRONT...SFC DEW POINTS MID-UPPER 50S F WILL CONTRIBUTE TO 1000-1500 J/KG MLCAPE...REDUCED VERY SLOWLY AMIDST PREFRONTAL WAA/MOIST ADVECTION. THESE FACTORS SHOULD OFFSET DELETERIOUS EFFECTS OF SFC DIABATIC COOLING AND WEAK PREFRONTAL WINDS ENOUGH TO CONTRIBUTE TO ADDITIONAL DEVELOPMENT AND UPSCALE GROWTH OF CONVECTION. ASSORTED STORM-MOTION ALGORITHMS APPLIED TO FCST SOUNDINGS SUGGEST ACTIVITY FORMING ALONG FRONT MAY BE UNDERCUT...BUT ONLY GRADUALLY...GIVEN ITS SEWD MOTION INFLUENCED BY DEEP-LAYER WIND PROFILES ABOVE FRONTAL CURRENT. ADDITIONALLY...STEEP LAPSE RATES AND MOISTURE ARE EXPECTED ABOVE FRONTAL SFC AND WITHIN AT LEAST 75 NM BEHIND FRONT...WHERE ELEVATED MUCAPE 500-1000 J/KG IS POSSIBLE AMIDST 35-45 KT EFFECTIVE SHEAR MAGNITUDES. ..EDWARDS/KERR.. 03/31/2013 Bunty 03-31-2013, 02:09 AM Bectcha a pizza it misses us completely. There will surely be at least a sprinkle, or two. PennyQuilts 03-31-2013, 02:42 AM Dog just got up in bed with us. That usually means thunder in El Reno. Anonymous. 03-31-2013, 02:52 AM Storms rapidly firing in W and NW OK. Moving ESE. WilliamTell 03-31-2013, 03:02 AM Dog just got up in bed with us. That usually means thunder in El Reno. Our baby was up from 1:30 till now, just as happy as he could be. I figured the weather had to of been changing. OKCisOK4me 03-31-2013, 03:15 AM Looks good just north and west of OKC area. ...just happen to be in Tulsa Plutonic Panda 03-31-2013, 03:19 AM Well, all that grass seed I put down the other day, GONE! Dustin 03-31-2013, 03:19 AM Raining HEAVILY in the quail creek area PennyQuilts 03-31-2013, 03:29 AM Here comes the rain - East of Mustang. PennyQuilts 03-31-2013, 03:33 AM Correction - SERIOUS hail. Sounds like cannonballs. venture 03-31-2013, 03:33 AM Main area of hail right now below. Also showing a strong inflow area near 134th and Rockwell, so damaging wind threat is going up. http://www.weatherspotlight.com/screencap/ktlx_20130331_grab2.png venture 03-31-2013, 03:37 AM mPING hail report of 1.75" in Mustang. venture 03-31-2013, 03:41 AM Radar estimated hail size now up to 2.29". http://www.weatherspotlight.com/screencap/ktlx_20130331_grab3.png venture 03-31-2013, 03:44 AM http://www.weatherspotlight.com/screencap/ktlx_20130331_0836.png PennyQuilts 03-31-2013, 03:47 AM I'd agree with the hail size. Jeeze! Seems to be passed, now. Three of my neighbors just got new roofs from previous hail damage. I don't even want to look at our roof and the old van parked outside. venture 03-31-2013, 03:51 AM Updated warning text... BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORMAN OK 349 AM CDT SUN MAR 31 2013 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CLEVELAND COUNTY IN CENTRAL OKLAHOMA... MCCLAIN COUNTY IN CENTRAL OKLAHOMA... * UNTIL 430 AM CDT * AT 346 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM LOCATED 4 MILES EAST OF NEWCASTLE...AND MOVING SOUTHEAST AT 40 MPH. HAZARDS IN THE WARNING INCLUDE... LARGE DAMAGING HAIL UP TO GOLF BALL SIZE... DAMAGING WINDS IN EXCESS OF 60 MPH... * LOCATIONS IMPACTED INCLUDE... NORMAN...MOORE...PURCELL...NEWCASTLE...NOBLE...SLA UGHTERVILLE... BLANCHARD...LEXINGTON...GOLDSBY...WAYNE...WASHINGT ON...COLE... DIBBLE...ETOWAH...ROSEDALE...CRINER...STANLEY DRAPER LAKE...LAKE THUNDERBIRD AND PAYNE. venture 03-31-2013, 03:52 AM http://www.weatherspotlight.com/screencap/ktlx_20130331_grab4.png venture 03-31-2013, 03:56 AM Looks like the hail core is riding along and to the west of US 77, so most of Central and Eastern Norman might avoid the hail. venture 03-31-2013, 04:15 AM Here is the current overlay of the PING reports from NSSL with hail sizes reported as it came through Norman. http://www.weatherspotlight.com/screencap/ktlx_20130331_grab5.png LocoAko 03-31-2013, 12:21 PM Got quarter-sized hail in Central Norman, but had friends in the SW part of Norman (from campus westward) with up to 2.00" hail and damage. One had lawn chairs destroyed, and the other reported that every car in her lot was dented. Both Westheimer and the Mesonet gusted up to 59MPH as well. Uncle Slayton 03-31-2013, 01:06 PM The first photo is hail on the porch of my shed 8 hours after the storm passed, with an air temp of 60 degrees. I was out there at 4:30AM and the amounts were not to be believed. This is east of 24thNW and Lindsey. http://i32.photobucket.com/albums/d1/okchemyst/Hail33113_zpsc552aa7d.jpg The next photo is of my "baby," who had a rough night. http://i32.photobucket.com/albums/d1/okchemyst/BMW2_zpsa4270add.jpg Bunty 03-31-2013, 05:36 PM Bectcha a pizza it misses us completely. I was tempted to have bet that the storms would bypass Stillwater as radar was looking like the system was going to neatly split to the north and south of Stillwater, which is how it turned out to be. Much of Tulsa area didn't get a drop, either. Most of the SE quarter of Oklahoma did pretty good with handsome rain amounts. http://stillwaterweather.com/photos/rainstatemar3113.png Easy180 03-31-2013, 05:50 PM The first photo is hail on the porch of my shed 8 hours after the storm passed, with an air temp of 60 degrees. I was out there at 4:30AM and the amounts were not to be believed. This is east of 24thNW and Lindsey. http://i32.photobucket.com/albums/d1/okchemyst/Hail33113_zpsc552aa7d.jpg The next photo is of my "baby," who had a rough night. http://i32.photobucket.com/albums/d1/okchemyst/BMW2_zpsa4270add.jpg That sucks to say the least Feel like I'm partially to blame cause our house goes up for sale tomorrow in Moore and I was wishing this thing south for for an hour this morning LocoAko 03-31-2013, 10:46 PM https://www.youtube.com/watch?v=S4nxRlXV1T4 Metro residents see damage after overnight storms - Oklahoma City - OKC - KOCO.com (http://www.koco.com/weather/Metro-residents-see-damage-after-overnight-storms/-/9845544/19539174/-/aujm3d/-/index.html#.UVjgOtsd5WM.facebook) jn1780 04-01-2013, 08:31 AM Return of severe weather next week? SPC 4-8 Day Outlook ...CNTRL/SRN PLAINS - D8... MODELS ARE IN GOOD AGREEMENT SHOWING AN UPPER TROUGH DEVELOPING OVER THE WRN CONUS AFTER ABOUT D7 WITH RISING HEIGHTS OVER THE ERN STATES. THIS WILL ALLOW FOR SUBSTANTIAL MOISTURE RETURN ACROSS THE PLAINS...WITH MODERATE SWLY FLOW ALOFT. WHILE TIMING OF EMBEDDED SHORTWAVES IS UNCERTAIN...IT APPEARS THE THREAT FOR DRYLINE SUPERCELLS WILL BE ON THE INCREASE LATE IN THE PERIOD FROM KS INTO OK AND TX. BOTH THE GFS AND ECMWF DEPICT MID 60S F BOUNDARY LAYER DEWPOINTS AS FAR N AS NRN OK BY 00Z ON THE 9TH. Anonymous. 04-01-2013, 08:58 AM Active pattern remains. Looks like a soaker on Tuesday night and Wednesday afternoon. Warms and dries back up until another shot at rain Sunday. Then large system exits rockies around Tuesday next week. Everything is going to be nice and green in a few weeks. ljbab728 04-01-2013, 10:14 PM Everything is going to be nice and green in a few weeks. I don't understand. LOL Things get green in Oklahoma? Mississippi Blues 04-02-2013, 12:21 AM I don't understand. LOL Things get green in Oklahoma? What's this "green" you speak of? I've heard tales of it, but I've never seen it for myself. Dubya61 04-02-2013, 02:29 PM Green is the season between April 29th and May 2nd. |