Alert archive / Oklahoma / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 236
The Storm Prediction Center issued this severe thunderstorm watch at May 6, 2002, 1:30 AM CDT for 23 counties in Oklahoma. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 6, 2002, 1:30 AM CDT (06:30 UTC)
- Expired
- May 6, 2002, 7:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 23 counties
Adair County, OK, Cherokee County, OK, Cleveland County, OK, Creek County, OK, Delaware County, OK, Garvin County, OK, Hughes County, OK, Lincoln County, OK, Mayes County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Ottawa County, OK, Pontotoc County, OK, Pottawatomie County, OK, Rogers County, OK, Seminole County, OK, Tulsa County, OK, Wagoner County, OK
The radar
The Norman radar (KTLX), 87 km from the middle of the area, began a volume at 06:31 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
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 1:34 AM CDT | Severe Thunderstorm Warning | OUN | Lincoln, Pottawatomie | 41 min |
| May 6, 1:52 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Okmulgee, Tulsa | 53 min |
| May 6, 2:09 AM CDT | Severe Thunderstorm Warning | TSA | Wagoner | 51 min |
| May 6, 2:16 AM CDT | Severe Thunderstorm Warning | OUN | Lincoln | 29 min |
| May 6, 2:38 AM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 52 min |
| May 6, 2:39 AM CDT | Severe Thunderstorm Warning | TSA | Delaware | 36 min |
| May 6, 2:47 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 43 min |
| May 6, 2:51 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 39 min |
| May 6, 3:01 AM CDT | Severe Thunderstorm Warning | TSA | Wagoner | 44 min |
| May 6, 3:20 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Muskogee | 55 min |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 6.5 hours before the alert went out and 102 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
- 1804 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 897 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 216 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 6.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 7:30 PM CDT | Tornado Watch | SPC | Alfalfa, Beckham, Blaine, Custer, Dewey, Grant and 9 more | 4 hr |
| May 5, 11:00 PM CDT | Tornado Watch | SPC | Alfalfa, Blaine, Caddo, Canadian, Comanche, Custer and 14 more | 4 hr |
Nearby
Severe Thunderstorm Watches in Oklahoma, 2002Every severe thunderstorm watch in 2002
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.