Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 271, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 28, 2001, 1:43 AM CDT for Okfuskee County, Oklahoma. It was in force for 62 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 28, 2001, 1:43 AM CDT (06:43 UTC)
- Expired
- Jun 28, 2001, 2:45 AM CDT
- In force
- 62 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Okfuskee County, OK
The radar
The Norman radar (KTLX), 88 km from the middle of the area, began a volume at 06:43 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 |
|---|---|---|---|
| Jun 28, 1:50 AM CDT | Thunderstorm Wind 52 E | Paden, 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 nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 6.7 hours before the alert went out and 101 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
- 1933 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 1365 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KTSA 280643 SVRTUL OKC107-280745- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 143 AM CDT THU JUN 28 2001 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN OKFUSKEE COUNTY IN EAST CENTRAL OKLAHOMA * UNTIL 245 AM CDT * AT 143 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES NORTHEAST OF PADEN...MOVING SOUTH AT 20 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...BOLEY...PADEN AND BEARDEN. HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROAfCH. $$ DRM LAT...LON 3559 9650 3558 9659 3532 9661 3529 9630
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 Jun 27, 9:27 PM CDT, 4 hours 16 minutes earlier.
Area forecast discussion, Jun 27, 9:27 PM CDT, 4 hours 16 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 927 PM CDT WED JUN 27 2001 WELL DEFINED UPPER LOW ANALYZED SW OF STL AT 00Z THIS EVENING. THIS FEATURE HASN'T MOVED MUCH OVER THE PAST 12 HOURS AND IS EXPECTED TO WOBBLE OVER SRN/SERN MO OVERNIGHT. DIURNAL CONVECTION HAS JUST ABOUT GIVEN UP OVER SW MO/NW AR...BUT KEEPING AN EYE ON WEAK CONVECTION W OF TUL THAT HAS RECENTLY DEVELOP. SATELLITE AND A LOOK OUT THE WINDOW BEFORE SUNSET REVEALED A NARROW N-S BAND OF ACCAS ACROSS CNTRL OK...INDICATIVE OF MID-LEVEL INSTABILITY. WILL SEE CONVECTION BUBBLE IN THIS AREA THE REST OF THE EVENING...WITH BETTER DEVELOPMENT EXPECTED LATER TONIGHT AS SWLY LOW-LEVEL JET STRENGTHENS SOME. LATEST 00Z MESOETA APPEARS TO HAVE A GOOD HANDLE ON THIS SCENARIO. CURRENT 30 POPS IN ALL ZONES LOOKS GOOD TO ME. TEMPS APPEAR TO BE IN GOOD SHAPE AS WELL...SO NOT PLANNING AN UPDATE THIS EVENIN G. FCSTID = 18 .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 |
|---|---|---|---|---|
| Jun 28, 7:27 AM CDT | Severe Thunderstorm Warning | TSA | Osage | 48 min |
| Jun 28, 8:13 AM CDT | Severe Thunderstorm Warning | TSA | Tulsa | 47 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.