Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 113, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 23, 2000, 4:45 PM CDT for Okfuskee County, Oklahoma. It was in force for 45 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Apr 23, 2000, 4:45 PM CDT (21:45 UTC)
- Expired
- Apr 23, 2000, 5:30 PM CDT
- In force
- 45 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Okfuskee County, OK
The radar
The Norman radar (KTLX), 87 km from the middle of the area, began a volume at 21:48 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 23, 4:50 PM CDT | Hail 0.75 | Welty, OK |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 9.8 hours before the alert went out and 100 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
- 76 J/kg
- Mixed-layer CIN
- -265 J/kg
- Mixed-layer LCL
- 1004 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 340 m²/s²
- 0-3 km storm-relative helicity
- 352 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
896 WUUS54 KTSA 232147 SVRTUL OKC107-232230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 445 PM CDT SUN APR 23 2000 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... OKFUSKEE COUNTY IN EAST CENTRAL OKLAHOMA * UNTIL 530 PM CDT * AT 445 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER CASTLE...MOVING SOUTH AT 20 MPH...WITH OTHER STORMS DEVELOPING OVER NORTHWEST OKFUSKEE COUNTY. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...WELTY... BOLEY...CASTLE...CLEARVIEW...BEARDEN AND OKEMAH HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 50 MPH CAN BE EXPECTED IN THE WARNED AREA. BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH. CALL 1-800-722-2778 TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE. LAT...LON 3564 9630 3561 9659 3510 9636 3519 9608
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 1:13 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Tulsa | 47 min |
| Apr 23, 1:32 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 43 min |
| Apr 23, 1:56 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 49 min |
| Apr 23, 2:00 PM CDT | Severe Thunderstorm Warning | TSA | Tulsa | 45 min |
| Apr 23, 2:10 PM CDT | Tornado Warning | TSA | Latimer, Pittsburg | 35 min |
| Apr 23, 2:13 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pushmataha | 47 min |
| Apr 23, 2:15 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 45 min |
| Apr 23, 2:22 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 38 min |
| Apr 23, 2:23 PM CDT | Tornado Warning | TSA | Pushmataha | 37 min |
| Apr 23, 2:38 PM CDT | Tornado Warning | TSA | Latimer | 52 min |
| Apr 23, 2:40 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 50 min |
| Apr 23, 2:44 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 61 min |
| Apr 23, 2:57 PM CDT | Tornado Warning | TSA | Pushmataha | 48 min |
| Apr 23, 3:04 PM CDT | Tornado Warning | TSA | LeFlore | 56 min |
| Apr 23, 3:28 PM CDT | Tornado Warning | TSA | Latimer | 32 min |
| Apr 23, 3:29 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 61 min |
| Apr 23, 3:42 PM CDT | Tornado Warning | TSA | Pushmataha | 48 min |
| Apr 23, 3:55 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 50 min |
| Apr 23, 4:02 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Washington | 58 min |
| Apr 23, 4:18 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 42 min |
| Apr 23, 4:18 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Sequoyah | 57 min |
| Apr 23, 4:26 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 64 min |
| Apr 23, 4:40 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 50 min |
| Apr 23, 4:42 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okmulgee | 48 min |
| Apr 23, 4:50 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Rogers, Tulsa, Washington | 40 min |
| Apr 23, 4:57 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 63 min |
| Apr 23, 5:25 PM CDT | Severe Thunderstorm Warning | TSA | Rogers, Tulsa | 50 min |
| Apr 23, 5:26 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee, Okmulgee | 49 min |
| Apr 23, 5:33 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 57 min |
| Apr 23, 5:36 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 39 min |
| Apr 23, 6:02 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 58 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2000Every severe thunderstorm warning in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.