Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 147, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 12, 2002, 6:44 PM CDT for Okfuskee County, Oklahoma. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 12, 2002, 6:44 PM CDT (23:44 UTC)
- Expired
- May 12, 2002, 7:15 PM CDT
- In force
- 31 min
- Issued by
- NWS Tulsa, OK
- Area
- Counties, with a storm outline in the text
County Okfuskee County, OK
The radar
The Norman radar (KTLX), 89 km from the middle of the area, began a volume at 23:48 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 12, 1:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 11.7 hours before the alert went out and 104 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
- 1526 J/kg
- Mixed-layer CIN
- -267 J/kg
- Mixed-layer LCL
- 652 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 487 m²/s²
- 0-3 km storm-relative helicity
- 518 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KTSA 122344 SVRTUL OKC107-130015- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 643 PM CDT SUN MAY 12 2002 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN OKFUSKEE COUNTY IN EAST CENTRAL OKLAHOMA * UNTIL 715 PM CDT * AT 643 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES SOUTH OF WELTY...MOVING NORTHEAST AT 30 MPH. QUARTER SIZE HAIL HAS OCCURRED WITH THIS STORM. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...OKFUSKEE AND WELTY. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. LAT...LON 3552 9648 3551 9609 3566 9618 3565 9646
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 3:00 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 45 min |
| May 12, 3:53 PM CDT | Severe Thunderstorm Warning | TSA | Mayes | 37 min |
| May 12, 4:05 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 40 min |
| May 12, 4:30 PM CDT | Severe Thunderstorm Warning | TSA | Delaware | 45 min |
| May 12, 4:36 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 39 min |
| May 12, 4:52 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 53 min |
| May 12, 5:09 PM CDT | Severe Thunderstorm Warning | TSA | Delaware | 66 min |
| May 12, 5:18 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 57 min |
| May 12, 5:56 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 49 min |
| May 12, 6:03 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 42 min |
| May 12, 6:24 PM CDT | Severe Thunderstorm Warning | TSA | Tulsa | 51 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2002Every severe thunderstorm warning 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.