Alert archive / Oklahoma / Mesoscale Discussions in 2003
Mesoscale Discussion 898
The Storm Prediction Center issued this mesoscale discussion at May 10, 2003, 1:22 AM CDT for Newton County, Missouri; 18 counties in Oklahoma. It was in force for 83 min.
The area
The outline as issued.
The facts
- Issued
- May 10, 2003, 1:22 AM CDT (06:22 UTC)
- Expired
- May 10, 2003, 2:45 AM CDT
- In force
- 83 min
- Issued by
- the Storm Prediction Center
Counties Newton County, MO, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Lincoln County, OK, Mayes County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Osage County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 31 km from the middle of the area, began a volume at 06:21 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 6.4 hours before the alert went out and 181 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2823 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 1182 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 151 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
489 ACUS11 KWNS 100623 SWOMCD SPC MCD 100622 ARZ000-MOZ000-OKZ000-100745- MESOSCALE DISCUSSION 0898 NWS STORM PREDICTION CENTER NORMAN OK 0122 AM CDT SAT MAY 10 2003 AREAS AFFECTED...NERN OK CONCERNING...TORNADO WATCH 330... VALID 100622Z - 100745Z TORNADO/LARGE HAIL THREAT WILL CONTINUE WITH SUPERCELL OVER NERN OK. TULSA REFLECTIVITY/VELOCITY DATA CONTINUE TO SHOW A LONG-LIVED SUPERCELL WITH A HISTORY OF DAMAGING TORNADOES CURRENTLY MOVING INTO TULSA COUNTY. SURFACE DEWPOINTS IN THE LOWER 70S AND STEEP MID-LEVEL LAPSE RATES ARE CONTRIBUTING TO A MODERATELY TO VERY UNSTABLE AIRMASS OVER NERN OK EARLY THIS MORNING WITH MLCAPES OF 2500-3000 J/KG. TULSA VWP INDICATES THAT 50-60KT SLY LLJ IS RESULTING IN A PRONOUNCED HODOGRAPH SPIKE BETWEEN .5 AND 1.5 KM AGL...WITH 0-2KM SRH VALUES APPROACHING 400 M2/S2. GIVEN THE DEGREE OF INSTABILITY...WIND SHEAR AND MOIST BOUNDARY-LAYER CONDITIONS /LCL HEIGHTS AOB 800M/...THE POTENTIAL FOR STRONG TORNADOES WILL PERSIST FROM AROUND TULSA NEWD ALONG THE STORM TRACK. RUC ANALYSIS FIELDS INDICATE THAT CONVECTIVE INHIBITION INCREASES EWD ACROSS FAR NERN OK INTO SWRN MO/NWRN AR. THEREFORE...THIS SUPERCELL MAY BEGIN TO WEAKEN AS IT MOVES INTO THIS AREA. ..MEAD.. 05/10/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...SGF...TSA...OUN... 36009707 36509687 36759672 36919661 36979657 36979651 36939601 36939557 36919507 36919469 36979437 36939426 36829435 36169474 35719494 35489508 35399514 35409551 35419639 35439714 35439742 35759725
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 7:47 PM CDT | Mesoscale Discussion | SPC | Audrain, Barton, Bates, Benton, Boone, Callaway and 42 more | 88 min |
| May 9, 10:04 PM CDT | Mesoscale Discussion | SPC | Adair, Andrew, Audrain, Barton, Bates, Benton and 55 more | 26 min |
| May 9, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Barton, Bates, Benton, Caldwell, Carroll and 36 more | 6 hr |
| May 10, 1:15 AM CDT | Severe Thunderstorm Watch | SPC | Andrew | 5 hr |
| May 10, 2:28 AM CDT | Mesoscale Discussion | SPC | Andrew, Buchanan | 92 min |
| May 10, 3:05 AM CDT | Tornado Watch | SPC | Barton, Bates, Benton, Cedar, Dade, Henry and 7 more | 5 hr |
| May 10, 3:15 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 25 more | 5 hr |
| May 10, 5:27 AM CDT | Mesoscale Discussion | SPC | Barton, Bates, Benton, Cass, Cedar, Dade and 9 more | 93 min |
| May 10, 5:43 AM CDT | Mesoscale Discussion | SPC | Audrain, Boone, Callaway, Clark, Knox, Lewis and 11 more | 92 min |
| May 10, 5:50 AM CDT | Severe Thunderstorm Watch | SPC | Audrain, Boone, Callaway, Clark, Cole, Franklin and 19 more | 5 hr |
| May 10, 7:06 AM CDT | Mesoscale Discussion | SPC | Adair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 25 more | 54 min |
| May 10, 9:25 AM CDT | Mesoscale Discussion | SPC | Iron, Jefferson, Madison, Perry, Sainte Genevieve, Saint Francois and 1 more | 2 hr |
| May 10, 10:54 AM CDT | Mesoscale Discussion | SPC | Adair, Audrain, Barry, Barton, Bates, Benton and 84 more | 66 min |
| May 10, 10:58 AM CDT | Mesoscale Discussion | SPC | Adair, Andrew, Audrain, Barton, Bates, Benton and 42 more | 2 hr |
| May 10, 11:35 AM CDT | Tornado Watch | SPC | Adair, Audrain, Bates, Benton, Boone, Caldwell and 38 more | 7 hr |
| May 10, 11:55 AM CDT | Tornado Watch | SPC | Barry, Barton, Camden, Cedar, Christian, Dade and 13 more | 7 hr |
| May 10, 1:42 PM CDT | Mesoscale Discussion | SPC | Adair, Audrain, Bates, Benton, Boone, Caldwell and 38 more | 2 hr |
| May 10, 1:59 PM CDT | Mesoscale Discussion | SPC | Barry, Barton, Camden, Cedar, Christian, Dade and 12 more | 2 hr |
| May 10, 3:17 PM CDT | Mesoscale Discussion | SPC | Clark, Schuyler, Scotland | 58 min |
| May 10, 3:30 PM CDT | Mesoscale Discussion | SPC | Crawford, Dent, Douglas, Franklin, Gasconade, Howell and 16 more | 2 hr |
| May 10, 3:50 PM CDT | Tornado Watch | SPC | Putnam, Schuyler, Scotland | 6 hr |
| May 10, 4:00 PM CDT | Tornado Watch | SPC | Bollinger, Butler, Cape Girardeau, Carter, Crawford, Dent and 22 more | 5 hr |
| May 10, 4:48 PM CDT | Mesoscale Discussion | SPC | Adair, Audrain, Benton, Boone, Callaway, Chariton and 24 more | 87 min |
| May 10, 5:40 PM CDT | Tornado Watch | SPC | Adair, Audrain, Benton, Boone, Callaway, Chariton and 32 more | 5 hr |
| May 10, 6:41 PM CDT | Mesoscale Discussion | SPC | Audrain, Boone, Callaway, Cole, Cooper, Lewis and 13 more | 64 min |
| May 9, 7:12 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 20 more | 63 min |
| May 9, 7:45 PM CDT | Tornado Watch | SPC | Alfalfa, Beckham, Blaine, Canadian, Custer, Dewey and 9 more | 5 hr |
| May 9, 8:24 PM CDT | Mesoscale Discussion | SPC | Blaine, Canadian, Custer, Garfield, Kingfisher, Logan and 2 more | 66 min |
| May 9, 9:41 PM CDT | Mesoscale Discussion | SPC | Blaine, Canadian, Kingfisher, Logan, Oklahoma | 64 min |
| May 9, 10:51 PM CDT | Mesoscale Discussion | SPC | Cherokee, Craig, Creek, Delaware, Lincoln, Mayes and 11 more | 54 min |
| May 9, 11:10 PM CDT | Tornado Watch | SPC | Cherokee, Craig, Creek, Delaware, Lincoln, Mayes and 12 more | 6 hr |
| May 10, 9:16 AM CDT | Mesoscale Discussion | SPC | Cleveland, Craig, Creek, Hughes, Lincoln, McClain and 12 more | 3 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2003Mesoscale Discussions in Missouri, 2003Every mesoscale discussion in 2003
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.