Large pressure drop
Posted by JAC on 5/10/2010, 5:56 pm
 MESOSCALE DISCUSSION 0512 NWS STORM PREDICTION CENTER NORMAN OK 0442 PM CDT MON MAY 10 2010 AREAS AFFECTED...SRN/ERN KS...MUCH OF OK...SWRN MO...NWRN AR CONCERNING...TORNADO WATCH 147...148... VALID 102142Z - 102245Z THE SEVERE WEATHER THREAT FOR TORNADO WATCH 147...148...CONTINUES. ...NEW TORNADO WATCH WILL BE ISSUED SOON FOR PORTIONS OF SERN KS...SWRN MO...NERN OK...NWRN AR... RAPID BOUNDARY LAYER RECOVERY IS UNDERWAY ACROSS SCNTRL KS INTO NERN OK AHEAD OF SFC LOW ALONG THE KS/OK BORDER WEST OF PNC. FOCUSED PRESSURE FALLS ARE NOTED JUST AHEAD OF THIS FEATURE WITH 2 HOUR FALLS ON THE ORDER OF 4-7MB. NEEDLESS TO SAY SHEAR AND THERMODYNAMIC PARAMETERS ARE UNUSUALLY STRONG AND VERY SUPPORTIVE OF VIOLENT TORNADIC SUPERCELLS. LATEST RADAR TRENDS SUGGEST EARLIER ISOLATED ACTIVITY IS NOW MORE CONCENTRATED AND FOCUSED ALONG SURGING DRYLINE WITH AT LEAST HALF A DOZEN STRONG TO RAPIDLY INTENSIFYING SUPERCELLS...A FEW WITH POTENTIALLY SIGNIFICANT TORNADOES...FROM KINGMAN COUNTY KS...ARCING TO THE WEST AND SOUTHWEST OF OKC IN SWRN OKLAHOMA. LATEST THINKING IS SPEED/MOVEMENT OF CURRENT ACTIVITY WILL REQUIRE AN ADDITIONAL TORNADO WATCH TO BE ISSUED OVER SERN KS/SWRN MO/NERN OK/NWRN AR SHORTLY. ..DARROW.. 05/10/2010 |
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In this thread:
Kansas, Oklahoma & Arkansas Under-the-Gun - JAC, 5/10/2010, 12:46 pm
- PRELIMINARY DAMAGE SURVEY RESULTS FROM MAY 10TH OUTBREAK... - Fred, 5/12/2010, 2:32 pm
- Re: PRELIMINARY DAMAGE SURVEY RESULTS FROM MAY 10TH OUTBREAK... - JAC, 5/12/2010, 3:47 pm
- Squall Line forming west of Dallas Fort-Worth - JAC, 5/10/2010, 9:24 pm
- Huge Convergence along Dry-Line. STP Bulls-eye heading to North TX - JAC, 5/10/2010, 9:31 pm
- Bart Comstock intercepting hook south of Muskogee - JAC, 5/10/2010, 8:50 pm
- Tornado spotted Kansas City Airport - JAC, 5/10/2010, 6:38 pm
- PDS East OK - JAC, 5/10/2010, 6:16 pm
- Re: Kansas, Oklahoma & Arkansas Under-the-Gun - Anung Mwka, 5/10/2010, 6:14 pm
- Oklahoma City Live Feed - JAC, 5/10/2010, 6:01 pm
- Re: Oklahoma City Live Feed - BobbiStorm, 5/10/2010, 8:33 pm
- New Rotation. SW of Harrah/W of Dale AND W of Meeker/Jacktown - CX, 5/10/2010, 7:35 pm
- Re: New Rotation. SW of Harrah/W of Dale AND W of Meeker/Jacktown - JAC, 5/10/2010, 7:39 pm
- Purcell and Ardmore, Too - CX, 5/10/2010, 7:41 pm
- Looks like it is starting to cap - storms should start to wind down in the next hour or two. - JAC, 5/10/2010, 7:46 pm
- Purcell and Ardmore, Too - CX, 5/10/2010, 7:41 pm
- Re: New Rotation. SW of Harrah/W of Dale AND W of Meeker/Jacktown - JAC, 5/10/2010, 7:39 pm
- Carter County Near Davis -> Baseball/Softball Sized Hail - CX, 5/10/2010, 7:12 pm
- Sink Drain headed toward Little - JAC, 5/10/2010, 7:13 pm
- Passing Between Little and Seminole -> Towards Cromwell - CX, 5/10/2010, 7:19 pm
- TVS Crossing I-40 NE of Seminole. - CX, 5/10/2010, 7:25 pm
- Massive Hook on GRIII - JAC, 5/10/2010, 7:28 pm
- Actual Tornado Moving E towards Cromwell - CX, 5/10/2010, 7:27 pm
- Re: Actual Tornado Moving E towards Cromwell - JAC, 5/10/2010, 7:30 pm
- Re: Actual Tornado Moving E towards Cromwell - CX, 5/10/2010, 7:33 pm
- Re: Actual Tornado Moving E towards Cromwell - JAC, 5/10/2010, 7:30 pm
- TVS Crossing I-40 NE of Seminole. - CX, 5/10/2010, 7:25 pm
- Passing Between Little and Seminole -> Towards Cromwell - CX, 5/10/2010, 7:19 pm
- Sink Drain headed toward Little - JAC, 5/10/2010, 7:13 pm
- Dryline refiring in uncapped STP west of Oklahoma City (maybe a double hit for OK-City) - JAC, 5/10/2010, 6:57 pm
- Dryline Refiring. SE of Moore/OKC/Norman. Mid-Level Rotation and Hooking Developing - CX, 5/10/2010, 7:09 pm
- Re: Dryline Refiring. SE of Moore/OKC/Norman. Mid-Level Rotation and Hooking Developing - JAC, 5/10/2010, 7:11 pm
- Correction: SW of Norman/OKC/Moore - CX, 5/10/2010, 7:10 pm
- Dryline Refiring. SE of Moore/OKC/Norman. Mid-Level Rotation and Hooking Developing - CX, 5/10/2010, 7:09 pm
- Tornado approx EF3 going thru Norman - JAC, 5/10/2010, 6:35 pm
- Prominent Hook Echo Approaching Little Axe, OK - CX, 5/10/2010, 6:44 pm
- Re: Prominent Hook Echo Approaching Little Axe, OK - JAC, 5/10/2010, 6:53 pm
- Little Axe Hook Passed Over Pink; Approaching Tecumseh - CX, 5/10/2010, 7:00 pm
- Going down I-40 --> Heading to Shawnee Mall - JAC, 5/10/2010, 7:04 pm
- Subdivision Near Lake Draper/I-40 Demolished - CX, 5/10/2010, 7:03 pm
- Re: Subdivision Near Lake Draper/I-40 Demolished - JAC, 5/10/2010, 7:05 pm
- Re: Subdivision Near Lake Draper/I-40 Demolished - CX, 5/10/2010, 7:08 pm
- Re: Subdivision Near Lake Draper/I-40 Demolished - JAC, 5/10/2010, 7:05 pm
- Re: Little Axe Hook Passed Over Pink; Approaching Tecumseh - JAC, 5/10/2010, 7:01 pm
- Little Axe Hook Passed Over Pink; Approaching Tecumseh - CX, 5/10/2010, 7:00 pm
- Re: Prominent Hook Echo Approaching Little Axe, OK - JAC, 5/10/2010, 6:53 pm
- Large tornado on ground just crossed I-40. Major damage reported. - JAC, 5/10/2010, 6:44 pm
- Prominent Hook Echo Approaching Little Axe, OK - CX, 5/10/2010, 6:44 pm
- Hook forming west of Moore - JAC, 5/10/2010, 6:10 pm
- Triple Point - JAC, 5/10/2010, 3:58 pm
- Cap just breaking - any cell here has an ideal chance to develop a massive tornado - JAC, 5/10/2010, 4:47 pm
- 46K-ft cell with multiple TVS's moving into the uncapped mega STP - JAC, 5/10/2010, 5:53 pm
- Large-Area Particularly Dangerous Situation - JAC, 5/10/2010, 2:32 pm
- Cap breaking at 4500 CAPE - JAC, 5/10/2010, 2:36 pm
- Tornadoes already spotted west KS - JAC, 5/10/2010, 2:40 pm
- Highest STP I have ever seen - JAC, 5/10/2010, 2:35 pm
- Cap breaking at 4500 CAPE - JAC, 5/10/2010, 2:36 pm
- STP already at 7 but capped. RUC breaks cap at 5PM CDT with 6000 CAPE - JAC, 5/10/2010, 12:49 pm
- Convective Initiation could start in about 1 hour. 100-knot UL Jet, 95-knots at 500mb - JAC, 5/10/2010, 2:28 pm
- High-end helicity - JAC, 5/10/2010, 12:55 pm
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