Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 251, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 3, 2001, 4:15 AM CDT for Delaware County, Ottawa County, Oklahoma. It was in force for 45 min. 2 reports 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
- Jun 3, 2001, 4:15 AM CDT (09:15 UTC)
- Expired
- Jun 3, 2001, 5:00 AM CDT
- In force
- 45 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Delaware County, OK, Ottawa County, OK
The radar
The Tulsa radar (KINX), 98 km from the middle of the area, began a volume at 09:16 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 3, 4:25 AM CDT | Hail 0.75 | Wyandotte, OK | |
| Jun 3, 4:30 AM CDT | Hail 1 | Grove, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 3, 4:00 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 9.3 hours before the alert went out and 86 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1361 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 147 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 030916 SVRTUL OKC041-115-031000- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 415 AM CDT SUN JUN 3 2001 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN DELAWARE COUNTY IN NORTHEAST OKLAHOMA SOUTHEASTERN OTTAWA COUNTY IN NORTHEAST OKLAHOMA * UNTIL 500 AM CDT * AT 415 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 2 MILES WEST OF WYANDOTTE...MOVING SOUTHEAST AT 20 MPH. A SECOND SEVERE STORM WAS 8 MILES NORTHEAST OF GROVE...MOVING SOUTHEAST AT 20 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...WYANDOTTE AND FAIRLAND. HAIL TO THE SI.ZE OF QUARTERS AND WIND GUSTS TO 55 MPH CAN BE EXPECTED IN THE WARNED AREA. BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH. LAT...LON 3690 9482 3674 9491 3647 9460 3680 9462
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 3, 3:30 AM CDT, 45 minutes earlier.
Area forecast discussion, Jun 3, 3:30 AM CDT, 45 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 330 AM CDT SUN JUN 3 2001 ELEVATED SVR CONVECTION DEVELOPING THIS MORNING ACROSS NORTHEAST OKLAHOMA IN STRONG NOSE OF LOW LEVEL JET. EXPECT THIS ACTIVITY TO CONTINUE FOR THE NEXT SEVERAL HOURS BEFORE LIFTING NORTH OF FA INTO SE KS/SW MO. GIVEN THE MID LEVEL INSTABILITY/SHEAR PROFILE...LARGE HAIL WILL BE POSSIBLE IN THE STRONGER CELLS. LATEST SFC ANALYSIS INDICATES WARM FRONT MOVING SLOWLY NORTH ACROSS SE OK...JUST NORTH OF MLC. MAIN FORECAST PROBLEM WILL BE THE EXACT PLACEMENT OF FRONT THIS AFTERNOON...AND THUS THE SVR TSTM POTENTIAL. ETA CONTINUES TO HANG FRONT OVER FAR NE OK...INITIATING CONVECTION ALONG BOUNDARY BY LATE AFTERNOON. BELIEVE ETA MAY BE FORECASTING FRONTAL BOUNDARY TOO FAR SOUTH...GIVEN CURRENT PRECIP TRENDS/MODEL FORECASTED PRECIP FIELDS. WARM FRONT IS EXPECTED TO LIFT NORTH INTO SOUTHEAST KANSAS BY LATE AFTERNOON. SOUTH OF BOUNDARY...FA WILL LIKELY REMAIN CAPPED...LIMITING AFTERNOON SVR WX THREAT. THIS HOWEVER WILL NEED TO BE CLOSELY MONITORED THIS AFTERNOON...AS BOUNDARY WILL LIKELY PROVIDE FOCUS FOR SUPERCELL DEVELOPMENT. TONIGHT SFC LOW CONTINUES TO MOVE SLOWLY EAST ACROSS NORTHERN OK/SOUTHERN KANSAS. MILD TEMPS WILL CONTINUE WITH MOIST SOUTHERLY FLOW OVERNIGHT. PRECIP CHANCES WILL REMAIN LOW WITH CONVECTION REMAINING NORTH OF FRONT OVER KS/MO. ANOTHER VERY WARM/BREEZY DAY EXPECTED ON MON A S/SW FLOW CONTINUES OVER AREA WITH TEMPS AROUND 90 OVER SOUTHERN AREAS. PRECIP CHANCES WILL INCREASE LATE MONDAY NIGHT INTO TUESDAY AS FRONT FINALLY SHIFTS SOUTH INTO NORTHEAST OKLAHOMA. RAIN CHANCES WILL CONTINUE THROUGH WED AS FRONT SAGS SOUTHWARD ACROSS FA. DRY FORECAST THU-SAT AS HIGH PRESSURE BUILDS IN BEHIND FRONT. FCSTID = 12 PRELIM NUMBERS BELOW: TUL 88 72 90 72 / 10 0 10 10 FSM 90 72 90 72 / 10 0 0 10 MLC 90 72 90 72 / 10 0 0 0 BVO 86 70 88 70 / 40 10 10 30 FYV 85 70 86 70 / 40 10 10 10 BYV 85 70 86 70 / 40 10 10 10 MIO 85 70 86 70 / 40 10 10 30 MKO 88 72 90 72 / 10 0 10 10 F%10 88 72 90 72 / 10 0 10 10 HHW 90 72 90 72 / 10 0 0 0 .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 3, 3:14 AM CDT | Severe Thunderstorm Warning | TSA | Delaware, Ottawa | 61 min |
| Jun 3, 3:42 AM CDT | Severe Thunderstorm Warning | TSA | Nowata | 48 min |
| Jun 3, 5:58 AM CDT | Flash Flood Warning | TSA | Ottawa | 2 hr |
| Jun 3, 9:52 AM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata | 53 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.