Alert archive / Oklahoma / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 100
The Storm Prediction Center issued this severe thunderstorm watch at Apr 6, 2003, 9:45 AM CDT for 28 counties in Arkansas; 32 counties in Oklahoma. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 6, 2003, 9:45 AM CDT (14:45 UTC)
- Expired
- Apr 6, 2003, 3:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 60 counties
Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Conway County, AR, Crawford County, AR, Franklin County, AR, Fulton County, AR, Howard County, AR, Izard County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Marion County, AR, Montgomery County, AR, Newton County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, Yell County, AR, Adair County, OK, Atoka County, OK, Bryan County, OK, Carter County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Delaware County, OK, Garvin County, OK, Haskell County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Love County, OK, Marshall County, OK, Mayes County, OK, McCurtain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK
The radar
The Western Arkansas radar (KSRX), 104 km from the middle of the area, began a volume at 14:49 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.
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 10:25 AM CDT | Severe Thunderstorm Warning | TSA | Mayes | 50 min |
| Apr 6, 12:03 PM CDT | Severe Thunderstorm Warning | OUN | Marshall | 37 min |
| Apr 6, 12:30 PM CDT | Severe Thunderstorm Warning | OUN | Bryan | 45 min |
| Apr 6, 12:47 PM CDT | Severe Thunderstorm Warning | OUN | Atoka | 43 min |
| Apr 6, 1:19 PM CDT | Severe Thunderstorm Warning | OUN | Coal, Hughes | 41 min |
| Apr 6, 1:27 PM CDT | Severe Thunderstorm Warning | OUN | Atoka | 33 min |
| Apr 6, 1:27 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 48 min |
| Apr 6, 1:31 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 44 min |
| Apr 6, 2:10 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, Pittsburg | 50 min |
| Apr 6, 2:14 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore, Pushmataha | 61 min |
| Apr 6, 2:52 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw | 53 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 2.8 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 710 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 498 m²/s²
- 0-3 km storm-relative helicity
- 695 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 7:38 AM CDT | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Chicot, Columbia, Lafayette and 3 more | 97 min |
| Apr 6, 7:50 AM CDT | Severe Thunderstorm Watch | SPC | Ashley, Bradley, Calhoun, Chicot, Columbia, Drew and 6 more | 5 hr |
| Apr 6, 8:56 AM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Cleburne, Conway and 21 more | 2 hr |
| Apr 6, 10:00 AM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Chicot, Desha, Drew, Jefferson and 4 more | 2 hr |
| Apr 6, 10:20 AM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 21 more | 55 min |
| Apr 6, 10:30 AM CDT | Tornado Watch | SPC | Ashley, Bradley, Calhoun, Chicot, Columbia, Drew and 6 more | 6 hr |
| Apr 6, 11:05 AM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Baxter, Cleburne, Cleveland, Craighead, Crittenden and 27 more | 5 hr |
| Apr 6, 12:27 PM CDT | Mesoscale Discussion | SPC | Arkansas, Clark, Cleburne, Cleveland, Conway, Craighead and 46 more | 2 hr |
| Apr 6, 2:18 PM CDT | Mesoscale Discussion | SPC | Boone, Conway, Crawford, Franklin, Garland, Howard and 16 more | 57 min |
| Apr 6, 2:55 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Boone, Clark, Cleburne, Conway, Crawford and 35 more | 5 hr |
| Apr 6, 3:45 PM CDT | Tornado Watch | SPC | Ashley, Chicot, Union | 5 hr |
| Apr 6, 5:35 PM CDT | Mesoscale Discussion | SPC | Ashley, Chicot, Union | 115 min |
| Apr 6, 6:23 PM CDT | Mesoscale Discussion | SPC | Ashley, Chicot, Union | 97 min |
| Apr 5, 6:35 PM CST | Mesoscale Discussion | SPC | Love | 115 min |
| Apr 5, 6:40 PM CST | Tornado Watch | SPC | Jackson | 5 hr |
| Apr 5, 6:55 PM CST | Mesoscale Discussion | SPC | Blaine, Caddo, Canadian, Carter, Cleveland, Comanche and 14 more | 95 min |
| Apr 5, 7:10 PM CST | Severe Thunderstorm Watch | SPC | Beckham, Blaine, Caddo, Canadian, Carter, Cleveland and 25 more | 5 hr |
| Apr 5, 8:04 PM CST | Mesoscale Discussion | SPC | Love | 116 min |
| Apr 5, 9:35 PM CST | Tornado Watch | SPC | Love | 5 hr |
| Apr 5, 11:10 PM CST | Mesoscale Discussion | SPC | Adair, Alfalfa, Atoka, Beckham, Blaine, Bryan and 54 more | 65 min |
| Apr 5, 11:35 PM CST | Severe Thunderstorm Watch | SPC | Atoka, Beckham, Blaine, Caddo, Canadian, Carter and 51 more | 5 hr |
| Apr 6, 5:09 AM CDT | Mesoscale Discussion | SPC | Alfalfa, Atoka, Beckham, Blaine, Caddo, Canadian and 47 more | 96 min |
| Apr 6, 5:35 AM CDT | Severe Thunderstorm Watch | SPC | Atoka, Bryan, Caddo, Canadian, Carter, Cherokee and 46 more | 4 hr |
| Apr 6, 7:45 AM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Canadian, Carter, Cherokee, Choctaw and 44 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Oklahoma, 2003Severe Thunderstorm Watches in Arkansas, 2003Every severe thunderstorm watch 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.