Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 353, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Aug 25, 2001, 10:16 PM CDT for Mayes County, Oklahoma. It was in force for 59 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
- Aug 25, 2001, 10:16 PM CDT (03:16 UTC)
- Expired
- Aug 25, 2001, 11:15 PM CDT
- In force
- 59 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Mayes County, OK
The radar
The Tulsa radar (KINX), 24 km from the middle of the area, began a volume at 03:19 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 |
|---|---|---|---|
| Aug 25, 10:29 PM CDT | Thunderstorm Wind 52 E | Chouteau, OK | Thunderstorm winds estimated at 60 miles an hour blew down large tree limbs. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 25, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 3.3 hours before the alert went out and 155 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
- 2085 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1505 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
701 WUUS54 KTSA 260317 SVRTUL OKC097-260415- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1016 PM CDT SAT AUG 25 2001 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN MAYES COUNTY IN NORTHEAST OKLAHOMA * UNTIL 1115 PM CDT * AT 1016 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES WEST OF CHOUTEAU...MOVING EAST AT 30 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...LOCUST GROVE AND CHOUTEAU. STORM SPOTTERS REPORTED QUARTER SIZE HAIL AND WIND GUSTS TO 60 MPH IN INOLA WITH THIS STORM. HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. LAT...LON 3627 9545 3610 9547 3609 9513 3627 9501
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 25, 8:45 PM CDT, 1 hour 31 minutes earlier.
Area forecast discussion, Aug 25, 8:45 PM CDT, 1 hour 31 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 845 PM CDT SAT AUG 25 2001 UPDATED ZONES TO WORD PCP AS SCT NEAR FRONT. CONVECTION DECIDED TO GET GOING ALONG THE BOUNDARY AFTER SUNSET AND EXTENDS FROM SW MO/NW CORNER OF ARKANSAS TO BIG COMPLEX NEAR OKC. SVR THREAT IS EXPECTED TO DECREASE DURING THE NEXT FEW HOURS...BUT PCP MAY BECOME MORE WIDESPREAD. WILL HAVE TO MONITOR AND MAY NEED TO UPDATE LATER TO RAISE POPS IN THE SOUTH. /13 .TSA... AR...NONE. OK...NONE.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 7:49 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 41 min |
| Aug 25, 7:56 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 49 min |
| Aug 25, 8:06 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 54 min |
| Aug 25, 8:20 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 40 min |
| Aug 25, 9:03 PM CDT | Severe Thunderstorm Warning | TSA | Delaware | 57 min |
| Aug 25, 9:25 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 50 min |
| Aug 25, 9:35 PM CDT | Severe Thunderstorm Warning | TSA | Tulsa | 40 min |
| Aug 25, 9:41 PM CDT | Severe Thunderstorm Warning | TSA | Rogers, Wagoner | 49 min |
| Aug 25, 9:41 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 49 min |
| Aug 25, 9:58 PM CDT | Severe Thunderstorm Warning | TSA | Delaware | 62 min |
| Aug 25, 10:30 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Muskogee | 45 min |
| Aug 25, 11:27 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 48 min |
| Aug 25, 11:31 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 44 min |
| Aug 25, 11:53 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 52 min |
| Aug 26, 5:14 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 61 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2001Every severe thunderstorm warning in 2001
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.