Dr. Jeff Masters' WunderBlog

Dangerous tornado outbreak expected Saturday; Gulf of Mexico SSTs warmest on record

Posted by: Dr. Jeff Masters, 2:57 PM GMT on April 13, 2012

+47

A dangerous tornado outbreak is expected on Saturday over the Plains, says NOAA's Storm Prediction Center (SPC). Warm, moist air flowing northwards from a Gulf of Mexico that has record-warm waters will collide with cold air funneling down from Canada, creating a highly unstable air mass capable of creating strong thunderstorm updrafts. An impressive upper-level low, accompanied by a jet stream with 105 - 125 mph winds at middle levels of the atmosphere, will create plenty of wind shear, giving the air the spin it needs to form tornadoes. SPC has has issued their highest level of alert, a "High Risk," for much of Oklahoma, Kansas, and Nebraska for Saturday. Included in the "High Risk" area are the cities of Wichita, Oklahoma City, and Lincoln. This is the second time SPC has issued a "High Risk" forecast this year; the first "High Risk" forecast came for the March 2 tornado outbreak, which killed 41 people and did $1.5 - $2 billion in damage. It is very unusual for SPC to issue a "High Risk" forecast more than a day in advance of a suspected tornado outbreak; according to Wikipedia, today's "High Risk" forecast is only the second time SPC has ever done this. The other instance was for the April 6 - 8, 2006 tornado outbreak focused over Tennessee, which generated 73 tornadoes that killed 13 and did $1.5 billion in damage. People living in the threatened area need to pay close attention on Saturday to this dangerous severe weather situation.

Figure 1. Severe weather risk for Saturday, April 14, 2012, from NOAA's Storm Prediction Center.

Gulf of Mexico water temperatures the warmest on record
Temperatures in the states bordering the Gulf of Mexico were the 3rd - 7th warmest on record during the first three months of 2012, according to NOAA's National Climatic Data Center. This allowed Sea Surface Temperatures (SSTs) in the Gulf of Mexico (25 - 30°N, 85 - 90°W) to climb to 1.4°C (2.5°F) above average during March 2012, according to a wunderground analysis of the Hadley Centre SST data set. This is the warmest March value on record for the Gulf of Mexico, going back over a century of record keeping. During the first two weeks of April, Gulf of Mexico waters remained about 1.5°C above average, putting April on pace to have the warmest April water temperatures on record. Only one year in the past century has had April water temperatures in the Gulf of Mexico more than 1.1°C above average; that year was 2002 (1.4°C above average.) All that record-warm water is capable of putting record amounts of water vapor into the air, since evaporation increases when water is warmer. Because moist air is less dense than dry air, this warm, moist air flowing northwards from the Gulf of Mexico into the developing storm system over the Plains will be highly unstable once it encounters cold, dry air aloft. The record-warm waters of the Gulf of Mexico are a key reason for the high risk of severe weather over the Plains this weekend.

Figure 2. Departure of Sea Surface Temperature (SST) from average for April 12, 2012, as computed by NOAA/NESDIS. SSTs in the Gulf of Mexico are at their warmest levels on record for this time of year.

Follow Weather Underground on twitter for the latest on this potential severe weather outbreak.

Jeff Masters

April Storms (llpj04)

this storm greeted me as I came out of the grocery store, chased me home and got to my driveway the same time I did.

Lightning Up the Pond - Oklahoma (mbryan777)

Last night we had a pretty spectacular lightning storm. I put the camera on the tripod in time-lapse mode and laid on my back on the hillside above the pond taking in an amazing show. When it got more exciting than I was comfortable with, I ran for the house.

Categories: Severe Weather Tornado

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201. 1900hurricane 8:10 PM GMT on April 13, 2012
Quoting ncstorm: Great radar site for the storms in OKlahoma from NOAA National Storms Severe Laboratory Oh sweet, they have some Dual-Pol stuff! Member Since: August 2, 2006 Posts: 43 Comments: 10366

202. sunlinepr 8:10 PM GMT on April 13, 2012
Member Since: August 2, 2010 Posts: 19 Comments: 8447

203. seflagamma 8:10 PM GMT on April 13, 2012
Quoting LargoFl: anyone here in fort lauderdale etc? they are also watching out for funnel clouds, be careful down there.........................SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 202 PM EDT FRI APR 13 2012 FLZ067-068-071>074-168-172-173-131830- COASTAL BROWARD COUNTY FL COASTAL MIAMI DADE COUNTY FL COASTAL PALM BEACH COUNTY FL INLAND BROWARD COUNTY FL INLAND MIAMI-DADE COUNTY FL INLAND PALM BEACH COUNTY FL METRO BROWARD COUNTY FL METRO PALM BEACH COUNTY FL METROPOLITAN MIAMI DADE FL 202 PM EDT FRI APR 13 2012 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SIGNIFICANT WEATHER ADVISORY FOR... BROWARD COUNTY NORTHEASTERN MIAMI-DADE COUNTY SOUTHEASTERN PALM BEACH COUNTY * UNTIL 230 PM EDT * AT 155 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED SCATTERED STRONG THUNDERSTORMS ACROSS PALM BEACH...BROWARD...AND NORTH MIAMI-DADE COUNTIES. THESE STORMS WERE MOVING SOUTHEAST AT 15 MPH. THESE STORMS ARE CAPABLE OF PRODUCING BRIEF HEAVY DOWNPOURS...GUSTY WINDS IN EXCESS OF 30 MPH...AND OCCASIONAL CLOUD TO GROUND LIGHTNING. * THE STORM WILL AFFECT... INTERSECTION I-75 AND U.S. 27... WESTON... SAWGRASS MILLS MALL... DEERFIELD BEACH... INTERSECTION I-75 AND GRIFFIN ROAD... SOUTHWEST RANCHES... AND SURROUNDING COMMUNITIES. ALSO...DEVELOPING IN AN ENVIRONMENT FAVORABLE FOR FUNNEL CLOUDS. LAT...LON 2584 8014 2585 8015 2588 8015 2584 8017 2582 8017 2580 8014 2582 8017 2580 8018 2591 8061 2649 8064 2675 8050 2654 8004 TIME...MOT...LOC 1759Z 317DEG 13KT 2613 8043 $$ I work in Broward in Weston.. and we got a downpour of heavy rain around noonish and still sprinkling. My house in Sunrise did not get too much just sprinkles... I heard we need to watch out for active severe weather. thanks Member Since: August 29, 2005 Posts: 286 Comments: 40485

204. MTWX 8:11 PM GMT on April 13, 2012
Quoting ncstorm: Great radar site for the storms in OKlahoma from NOAA National Storms Severe Laboratory Nice with the exception that you can't look at all of the images before the page auto refreshes! Member Since: July 20, 2009 Posts: 22 Comments: 1215

205. Tropicsweatherpr 8:13 PM GMT on April 13, 2012
sunlinepr,do you have a image of Puerto Rico? FLOOD ADVISORY NATIONAL WEATHER SERVICE SAN JUAN PR 409 PM AST FRI APR 13 2012 PRC021-031-061-127-139-132315- /O.NEW.TJSJ.FA.Y.0121.120413T2009Z-120413T2315Z/ /00000.N.ER.000000T0000Z.000000T0000Z.000000T0000 Z.OO/ BAYAMON PR-GUAYNABO PR-SAN JUAN PR-TRUJILLO ALTO PR-CAROLINA PR- 409 PM AST FRI APR 13 2012 THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS ISSUED AN * URBAN AND SMALL STREAM FLOOD ADVISORY FOR THE FOLLOWING MUNICIPALITIES... IN PUERTO RICO BAYAMON...GUAYNABO...SAN JUAN...TRUJILLO ALTO AND CAROLINA * UNTIL 715 PM AST * AT 409 PM AST...DOPPLER RADAR INDICATED SHOWERS AND ISOLATED THUNDERSTORMS SOME WITH VERY HEAVY RAIN DEVELOPING AND MOVING ACROSS OR TOWARDS THE ADVISORY AREA. AT LEAST UNTIL 7:15 PM PERIODS OF ADDITIONAL MODERATE TO HEAVY RAINFALL...AND GUSTY WINDS WILL BE POSSIBLE ACROSS THESE AREAS...AND FLOODING OF URBAN AREAS AND SMALL STREAMS WILL BE LIKELY. ALSO...MUDSLIDES IN STEEP TERRAIN ARE POSSIBLE. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 1841 6618 1845 6598 1831 6596 1831 6618 $$ CASTRO Member Since: April 29, 2009 Posts: 64 Comments: 8237

206. RTSplayer 8:13 PM GMT on April 13, 2012
Hitting Oklahoma City any moment now: N0 72 dBZ 41,000 ft. 71 kg/m² 100% chance 100% chance 3.75 in. 21 knots WSW (248) that is one insane cell... Member Since: January 25, 2012 Posts: 27 Comments: 875

207. 1900hurricane 8:14 PM GMT on April 13, 2012
If there happens to be a debris ball, you'll be able to tell due to the large drop in Correlation Coefficient: Hail cores may also be seen as smaller drops in CC from surrounding areas as long as they correspond to areas of high reflectivity, although this particular CC return looks very noisy... Member Since: August 2, 2006 Posts: 43 Comments: 10366

208. WxGeekVA 8:15 PM GMT on April 13, 2012
The one near OKC is developing a hook... It needs a warning IMO... Member Since: September 3, 2011 Posts: 13 Comments: 3323

209. RTSplayer 8:19 PM GMT on April 13, 2012
It's up to 77 VIL now. N0 71 dBZ 40,000 ft. 77 kg/m² 100% chance 100% chance 3.75 in. 21 knots WSW (248) Member Since: January 25, 2012 Posts: 27 Comments: 875

210. GeorgiaStormz 8:19 PM GMT on April 13, 2012
Quoting WxGeekVA: The one near OKC is developing a hook... It needs a warning IMO... whoa, rotation looks alot stronger than on regular radar. Member Since: February 11, 2012 Posts: 0 Comments: 7165

211. jamesrainier 8:19 PM GMT on April 13, 2012
SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORMAN OK 314 PM CDT FRI APR 13 2012 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN CANADIAN COUNTY IN CENTRAL OKLAHOMA... EXTREME NORTHWESTERN CLEVELAND COUNTY IN SOUTH CENTRAL OKLAHOMA... NORTHERN GRADY COUNTY IN SOUTH CENTRAL OKLAHOMA... EXTREME NORTHWESTERN MCCLAIN COUNTY IN SOUTH CENTRAL OKLAHOMA... SOUTHWESTERN OKLAHOMA COUNTY IN CENTRAL OKLAHOMA... * UNTIL 400 PM CDT * AT 313 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP TO BASEBALL SIZE AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR TUTTLE...MOVING NORTHEAST AT 30 MPH. * LOCATIONS IMPACTED INCLUDE... MOORE...YUKON...BETHANY...MUSTANG...WARR ACRES...NEWCASTLE... TUTTLE...MINCO...UNION CITY... POCASSET AND BRIDGE CREEK. THIS INCLUDES THE FOLLOWING HIGHWAYS... INTERSTATE 35 BETWEEN MILE MARKERS 111 AND 121. INTERSTATE 240 BETWEEN MILE MARKERS 1 AND 4. INTERSTATE 40 BETWEEN MILE MARKERS 134 AND 148. INTERSTATE 44 BETWEEN MILE MARKERS 96 AND 123. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOVE INSIDE A STURDY BUILDING UNTIL THE STORM HAS PASSED. Member Since: June 1, 2010 Posts: 0 Comments: 69

212. 1900hurricane 8:20 PM GMT on April 13, 2012
Someone correct me if I'm wrong, but I believe that high amounts of Differential Reflectivity (Zdr), especially in the 4 and up range are indicative of severe hail as well. Member Since: August 2, 2006 Posts: 43 Comments: 10366

213. weatherh98 8:22 PM GMT on April 13, 2012
Okc is Gonna get hit with more than one Member Since: June 17, 2011 Posts: 11 Comments: 6091

214. Tazmanian 8:23 PM GMT on April 13, 2012
and they got roud 2 on sat the real deal Member Since: May 21, 2006 Posts: 5088 Comments: 111359

215. WxGeekVA 8:25 PM GMT on April 13, 2012
Quoting GeorgiaStormz: whoa, rotation looks alot stronger than on regular radar. Using the TDWR on Wunderground... It's the yellow +s Member Since: September 3, 2011 Posts: 13 Comments: 3323

216. RTSplayer 8:26 PM GMT on April 13, 2012
Couple different hail cores in there near Grady, OK. All of them very, very severe. N0 Grady OK 70 dBZ 35,000 ft. 70 kg/m� 100% Chance 100% Chance 3.50 in. 23 knots WSW (250) U0 Grady OK 69 dBZ 38,000 ft. 61 kg/m� 100% Chance 100% Chance 3.00 in. 23 knots WSW (250) P0 Grady OK 67 dBZ 44,000 ft. 62 kg/m� 100% Chance 100% Chance 2.75 in. 23 knots WSW (252) This is gonna suck. That looks to head straight for the main city. It's even taken a jog to the right some in the past several minutes. Member Since: January 25, 2012 Posts: 27 Comments: 875

217. WxGeekVA 8:26 PM GMT on April 13, 2012
Looks like a hook to me... Member Since: September 3, 2011 Posts: 13 Comments: 3323

218. MTWX 8:26 PM GMT on April 13, 2012
Definitely a strong supercell! In this loop you can see the whole storm rotating!! Link Member Since: July 20, 2009 Posts: 22 Comments: 1215

219. GeorgiaStormz 8:28 PM GMT on April 13, 2012
Quoting WxGeekVA: Using the TDWR on Wunderground... It's the yellow +s i knew that, i just wasnt using it. Member Since: February 11, 2012 Posts: 0 Comments: 7165

220. Ameister12 8:29 PM GMT on April 13, 2012
Oh-boy! Norman/South OKC area need to watch this supercell very closely. It has really strengthened recently. Member Since: August 9, 2009 Posts: 9 Comments: 3518

221. ncstorm 8:29 PM GMT on April 13, 2012
if these people get hit hard today, what are they going to do tomorrow? Member Since: August 19, 2006 Posts: 7 Comments: 8469

222. weatherh98 8:30 PM GMT on April 13, 2012
Quoting WxGeekVA: Looks like a hook to me... Looks like a tiny hurricane Member Since: June 17, 2011 Posts: 11 Comments: 6091

223. GeorgiaStormz 8:31 PM GMT on April 13, 2012
Storm seems to have turned right a little Member Since: February 11, 2012 Posts: 0 Comments: 7165

224. HouGalv08 8:31 PM GMT on April 13, 2012
Really surprised a tornado warning hasn't been sent out for that cell approaching Norman, OK Member Since: July 21, 2008 Posts: 0 Comments: 313

225. weatherh98 8:31 PM GMT on April 13, 2012
Quoting ncstorm: if these people get hit hard today, what are they going to do tomorrow? My guess:get hit hard tomorrow Member Since: June 17, 2011 Posts: 11 Comments: 6091

226. DavidHOUTX 8:33 PM GMT on April 13, 2012
Quoting WxGeekVA: Looks like a hook to me... Looks like a right turn also. That could very well be a tornado Member Since: August 18, 2011 Posts: 0 Comments: 292

227. WxGeekVA 8:34 PM GMT on April 13, 2012
Rain-Wrapped now.... Strong Couplet.. Why is there no warning?!?! Member Since: September 3, 2011 Posts: 13 Comments: 3323

228. weatherh98 8:35 PM GMT on April 13, 2012
Quoting DavidHOUTX: Looks like a right turn also. That could very well be a tornado It looks like a galaxy hahaha Member Since: June 17, 2011 Posts: 11 Comments: 6091

229. HouGalv08 8:36 PM GMT on April 13, 2012
Updated radar shows the fell apart. Good for them! Member Since: July 21, 2008 Posts: 0 Comments: 313

230. TxKeef 8:36 PM GMT on April 13, 2012
Quoting BigTuna: We had baseball hail 2S of my house during last week's DFW outbreak. It does exactly the kind of damage you'd expect something that big to do :/. I haven't tried but I bet it's nearly impossible to rent a car within 200 miles of here right now. We didn't get any hail here in the Denton area. Member Since: August 30, 2008 Posts: 0 Comments: 71

231. Articuno 8:37 PM GMT on April 13, 2012
Quoting WxGeekVA: Looks like a hook to me... Bad news, that could spawn a tornado in the Oklahoma City area. (the suburbs surrounding) Member Since: October 22, 2011 Posts: 0 Comments: 1926

232. JNCali 8:37 PM GMT on April 13, 2012
Member Since: September 9, 2010 Posts: 5 Comments: 1032

233. hurricanehunter27 8:37 PM GMT on April 13, 2012
I just looked at SPC outlook for tomorrow and now I see 2 High risk areas!?! Chasers are going to have a blast. Member Since: July 22, 2010 Posts: 1 Comments: 3473

234. Tropicsweatherpr 8:37 PM GMT on April 13, 2012
FLOOD ADVISORY NATIONAL WEATHER SERVICE SAN JUAN PR 423 PM AST FRI APR 13 2012 PRC007-025-035-041-045-129-132330- /O.EXT.TJSJ.FA.Y.0118.000000T0000Z-120413T2330Z/ /00000.N.ER.000000T0000Z.000000T0000Z.000000T0000 Z.OO/ CAGUAS PR-CAYEY PR-CIDRA PR-COMERIO PR-SAN LORENZO PR-AGUAS BUENAS 423 PM AST FRI APR 13 2012 THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE * URBAN AND SMALL STREAM FLOOD ADVISORY FOR MINOR FLOODING OF POOR DRAINAGE AREAS IN FOR THE FOLLOWING MUNICIPALITIES... IN PUERTO RICO CAGUAS...CAYEY...CIDRA...COMERIO...SAN LORENZO AND AGUAS BUENAS * UNTIL 730 PM AST * AT 422 PM AST...DOPPLER RADAR INDICATED SHOWERS AND ISOLATED THUNDERSTORMS SOME WITH VERY HEAVY RAIN DEVELOPING AND MOVING ACROSS OR TOWARDS THE ADVISORY AREA. AT LEAST UNTIL 7:30 PM PERIODS OF ADDITIONAL MODERATE TO HEAVY RAINFALL...AND GUSTY WINDS WILL BE POSSIBLE ACROSS THESE AREAS...AND FLOODING OF URBAN AREAS AND SMALL STREAMS WILL BE LIKELY. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 1826 6616 1815 6594 1809 6599 1818 6624 $$ CASTRO Member Since: April 29, 2009 Posts: 64 Comments: 8237

235. Articuno 8:38 PM GMT on April 13, 2012
Has there ever been a tornado that hit dead on Oklahoma City? Member Since: October 22, 2011 Posts: 0 Comments: 1926

236. GeorgiaStormz 8:38 PM GMT on April 13, 2012
No warning yet, because rotation was not good enough at ground, and lots of spotters are under the storm, first indication on TDWR of a limited area of very strong rotation to me(the blue next to the yellow.) On regular radar, the strong rotation is elevated. Member Since: February 11, 2012 Posts: 0 Comments: 7165

237. TropicalAnalystwx13 8:38 PM GMT on April 13, 2012
I wouldn't call the rotation strong. I mean, there is some weak, broad rotation from the low to mid levels, but nothing too strong and not quite sufficient to warrant a tornado warning...not yet. It's trying hard though. Plus, a lot of spotters and a helicopter is on the storm. Member Since: July 6, 2010 Posts: 89 Comments: 25335

238. Tazmanian 8:38 PM GMT on April 13, 2012
Quoting Tropicsweatherpr: FLOOD ADVISORY NATIONAL WEATHER SERVICE SAN JUAN PR 423 PM AST FRI APR 13 2012 PRC007-025-035-041-045-129-132330- /O.EXT.TJSJ.FA.Y.0118.000000T0000Z-120413T2330Z/ /00000.N.ER.000000T0000Z.000000T0000Z.000000T0000 Z.OO/ CAGUAS PR-CAYEY PR-CIDRA PR-COMERIO PR-SAN LORENZO PR-AGUAS BUENAS 423 PM AST FRI APR 13 2012 THE NATIONAL WEATHER SERVICE IN SAN JUAN HAS EXTENDED THE * URBAN AND SMALL STREAM FLOOD ADVISORY FOR MINOR FLOODING OF POOR DRAINAGE AREAS IN FOR THE FOLLOWING MUNICIPALITIES... IN PUERTO RICO CAGUAS...CAYEY...CIDRA...COMERIO...SAN LORENZO AND AGUAS BUENAS * UNTIL 730 PM AST * AT 422 PM AST...DOPPLER RADAR INDICATED SHOWERS AND ISOLATED THUNDERSTORMS SOME WITH VERY HEAVY RAIN DEVELOPING AND MOVING ACROSS OR TOWARDS THE ADVISORY AREA. AT LEAST UNTIL 7:30 PM PERIODS OF ADDITIONAL MODERATE TO HEAVY RAINFALL...AND GUSTY WINDS WILL BE POSSIBLE ACROSS THESE AREAS...AND FLOODING OF URBAN AREAS AND SMALL STREAMS WILL BE LIKELY. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 1826 6616 1815 6594 1809 6599 1818 6624 $$ CASTRO what dos this have too do with severe weather? Member Since: May 21, 2006 Posts: 5088 Comments: 111359

239. RTSplayer 8:39 PM GMT on April 13, 2012
Quoting WxGeekVA: Looks like a hook to me... Radar put a tornado signature on it now. Weird positioning I guess, but not good regardless. Member Since: January 25, 2012 Posts: 27 Comments: 875

240. LargoFl 8:39 PM GMT on April 13, 2012
WATCH COUNTY NOTIFICATION FOR WATCH 160 NATIONAL WEATHER SERVICE NORMAN OK 336 PM CDT FRI APR 13 2012 OKC003-009-011-015-017-027-031-033-039-043-047-05 1-053-055-057- 065-071-073-075-081-083-087-093-103-109-119-137-1 41-149-TXC155- 197-485-487-140200- /O.CON.KOUN.TO.A.0160.000000T0000Z-120414T0200Z/ TORNADO WATCH 160 REMAINS VALID UNTIL 9 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN OKLAHOMA THIS WATCH INCLUDES 29 COUNTIES IN CENTRAL OKLAHOMA CANADIAN CLEVELAND GRADY KINGFISHER LINCOLN LOGAN MCCLAIN OKLAHOMA PAYNE IN NORTHERN OKLAHOMA GARFIELD GRANT KAY NOBLE IN NORTHWEST OKLAHOMA ALFALFA BLAINE DEWEY MAJOR IN SOUTHERN OKLAHOMA STEPHENS IN SOUTHWEST OKLAHOMA CADDO COMANCHE COTTON GREER HARMON JACKSON KIOWA TILLMAN IN WESTERN OKLAHOMA BECKHAM CUSTER WASHITA IN TEXAS THIS WATCH INCLUDES 4 COUNTIES IN NORTHERN TEXAS FOARD HARDEMAN WICHITA WILBARGER THIS INCLUDES THE CITIES OF...ALTUS...ANADARKO...CHANDLER... CHEROKEE...CHICKASHA...CHILLICOTHE...CLINTON...CO RDELL... CROWELL...DUNCAN...EL RENO...ELK CITY...ENID...FAIRVIEW... FREDERICK...GUTHRIE...HOBART...HOLLIS...KINGFISHE R...LAWTON... MANGUM...MEDFORD...MOORE...MUSTANG...NORMAN...OKL AHOMA CITY... PERRY...PONCA CITY...PURCELL...QUANAH...SAYRE...STILLWATER... TALOGA...VERNON...WALTERS...WATONGA...WEATHERFORD ... WICHITA FALLS AND YUKON. $$ Member Since: August 6, 2011 Posts: 0 Comments: 22426

241. Ameister12 8:39 PM GMT on April 13, 2012
What TA13 and GeorgiaStormz said. Member Since: August 9, 2009 Posts: 9 Comments: 3518

242. JNCali 8:40 PM GMT on April 13, 2012
Member Since: September 9, 2010 Posts: 5 Comments: 1032

243. WxGeekVA 8:40 PM GMT on April 13, 2012
Probably a rain-wrapped tornado on the ground right now... Member Since: September 3, 2011 Posts: 13 Comments: 3323

244. MTWX 8:41 PM GMT on April 13, 2012
Quoting Articuno: Has there ever been a tornado that hit dead on Oklahoma City? From Wiki... Since the time weather records have been kept, Oklahoma City has been struck by nine violent tornadoes, eight F4's and one F5.[9] On May 3, 1999 parts of southern Oklahoma City and nearby communities suffered one of the most powerful tornadoes on record, an F-5 on the Fujita Scale, with wind speeds topping 318 mph (510 km/h). This tornado was part of the 1999 Oklahoma tornado outbreak. Link Member Since: July 20, 2009 Posts: 22 Comments: 1215

245. LargoFl 8:43 PM GMT on April 13, 2012
Quoting WxGeekVA: Probably a rain-wrapped tornado on the ground right now... o new warnings yet for that area Member Since: August 6, 2011 Posts: 0 Comments: 22426

246. LargoFl 8:46 PM GMT on April 13, 2012
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 327 PM CDT FRI APR 13 2012 KSZ092-132100- SUMNER- 327 PM CDT FRI APR 13 2012 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR SUMNER COUNTY... AT 322 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM NEAR BRAMAN...OR 19 MILES SOUTH OF WELLINGTON...AND MOVING NORTHEAST AT 30 MPH. PENNY TO NICKEL SIZE HAIL...AND WINDS TO 50 MPH ARE POSSIBLE WITH THIS STORM. BE PREPARED TO TAKE SHELTER IN THE EVENT THE STORMS INTENSIFY AND BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE. && LAT...LON 3702 9747 3732 9715 3701 9716 3699 9729 3699 9745 TIME...MOT...LOC 2027Z 226DEG 24KT 3702 9732 $$ JAKUB Member Since: August 6, 2011 Posts: 0 Comments: 22426

247. hurricanehunter27 8:46 PM GMT on April 13, 2012
The tornado threat for today will not be till well after dark correct? At least for strong tornadoes anyway. Member Since: July 22, 2010 Posts: 1 Comments: 3473

248. GeorgiaStormz 8:47 PM GMT on April 13, 2012
it is headed for the SPC. returning to its maker.... Member Since: February 11, 2012 Posts: 0 Comments: 7165

249. TropicalAnalystwx13 8:47 PM GMT on April 13, 2012
AllisonHouse LLC "I'll forego the usual "Big outbreak coming tomorrow, you need to get AllisonHouse" advertisement and just say this: We've learned SPC will have a fully staffed, fully operational backup office working in tandem at Scott Air Force Base near East St. Louis, IL in the event the Norman, OK main office has to evacuate, or gets hit by a tornado. Need I say more?" Like-Share-3 minutes ago Member Since: July 6, 2010 Posts: 89 Comments: 25335

250. hurricanehunter27 8:49 PM GMT on April 13, 2012
Quoting TropicalAnalystwx13: AllisonHouse LLC "I'll forego the usual "Big outbreak coming tomorrow, you need to get AllisonHouse" advertisement and just say this: We've learned SPC will have a fully staffed, fully operational backup office working in tandem at Scott Air Force Base near East St. Louis, IL in the event the Norman, OK main office has to evacuate, or gets hit by a tornado. Need I say more?" Like %uFFFD %uFFFD Share %uFFFD 11 %uFFFD 3 minutes ago %uFFFD Damn. Its starting to sound like we have another super outbreak on our hands if the SPC is taking such measures. Member Since: July 22, 2010 Posts: 1 Comments: 3473

251. GeorgiaStormz 8:51 PM GMT on April 13, 2012
SPC says new storms will form behind the ones already there, but with a greater tornado threat. Member Since: February 11, 2012 Posts: 0 Comments: 7165

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