Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 326, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Oct 8, 1997, 10:44 PM CDT for Creek County, Okmulgee County, Tulsa County, Oklahoma. It was in force for 61 min. 3 reports 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
- Oct 8, 1997, 10:44 PM CDT (03:44 UTC)
- Expired
- Oct 8, 1997, 11:45 PM CDT
- In force
- 61 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Creek County, OK, Okmulgee County, OK, Tulsa County, OK
The radar
The Tulsa radar (KINX), 57 km from the middle of the area, began a volume at 03:46 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 |
|---|---|---|---|
| Oct 8, 10:50 PM CDT | Hail 0.75 | Kellyville, OK | |
| Oct 8, 11:05 PM CDT | Hail 0.88 | Glenpool, OK | |
| Oct 8, 11:05 PM CDT | Hail 0.88 | Glenpool, 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 |
|---|---|---|---|
| Oct 8, 5:45 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 3.7 hours before the alert went out and 140 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
- 2384 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 800 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 138 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 9.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 090345 SVRTUL OKC037-111-143-090445- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1044 PM CDT WED OCT 8 1997 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST OKLAHOMA ...EASTERN CREEK COUNTY...NORTHERN OKMULGEE COUNTY ...SOUTHERN TULSA COUNTY AT 1044 PM...RADAR SHOWED A SEVERE THUNDERSTORM FROM NEAR KELLYVILLE TO NEAR SLICK IN FAR EASTERN CREEK COUNTY. THE STORM WAS MOVING EAST NORTHEAST AT 25 MPH. KIEFER...GLENPOOL...MOUNDS...JENKS AND BIXBY ARE IN THE PATH OF THIS STORM. HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. DURING THE STORM MOVE INDOORS AND STAY AWAY FROM WINDOWS. TO PROTECT YOURSELF FROM LIGHTNING DO NOT USE THE TELEPHONE OR HAND HELD ELECTRICAL APPLIANCES...UNLESS IN AN EMERGENCY. MOTORISTS SHOULD BE ALERT FOR WATER ON ROADWAYS AND NEVER DRIVE ONTO A FLOODED ROAD. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER... SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.
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 Oct 8, 9:42 PM CDT, 1 hour 2 minutes earlier.
Area forecast discussion, Oct 8, 9:42 PM CDT, 1 hour 2 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 940 PM CDT WED OCT 8 1997 SO FAR JUST A GLANCING BLOW OF STRONG TSTMS ACRS THE NWRN FCST AREA. STRONGER STORMS JUST NOW WORKING THEIR WAY INTO NWRN COUNTIES. JUST ENOUGH UPR DYNAMICS STILL IN PLACE TO SUGGEST THAT MORE WL COME IN FM THE WSW LATER THIS EVENING. A LOOK AT THE 00Z RAOB DATA SHOWS DIFFLUENT UPR FLOW ACRS REGION THIS EVENING WITH MDT LLVL INFLOW OF MSTR. MAIN UPR ENERGY WL LIFT OUT TO THE NE LATE TONIGHT AS BEST WINDS ALFT NOW IN ERN QUAD OF UPR LONGWAVE TROF. WITH THIS IN MIND... EXPECT SCT STRONG TSTMS ACRS WRN FCST AREA THRU MIDNIGHT... WITH ACTIVITY WINDING DOWN STRENGTHWISE BY EARLY MORNING AS MAIN ENERGY LIFTS OUT. AS FAR AS SPECIFIC POPS GO...WONT ADJUST ANY POPS DOWNWARD ATTM. WITH UPR SWLY FLOW ALFT JUST ABT ANYTHING COULD GEN UP IN LLVL MSTR TO THE SW. SFC BNDRY WL MAKE SLOW PROGRESS (IF AT ALL) INTO WRN FCST AREA BY DAYBREAK BEFORE STALLING OUT. PICTURE STILL A LITTLE MUDDLED AS TO WHAT WL HAPPEN BEYOND PD 1 AND WOULD LIKE TO LOOK AT LATER MODEL DATA BEFORE SUGESTING ANY CHANGES THERE (MAINLY IN REGARDS TO POSN OF LLVL BNDRY). WL HOLD OFF ON UPDATING ZONES ATTM...ALTHO WE ARE LOOKING INTO POSSIBLY UPDATING POPS ACRS NWRN ZONE GROUPINGS TO EXTEND MENTION OF POPS OVERNIGHT. FCSTID = 14 .TUL... OK...NONE. AR...NONE.
In the hours before
Local storm report, Oct 8, 10:24 PM CDT, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1024 PM CDT WED OCT 08 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0934 PM 5 NW DEPEW OK .88 INCH HAIL
10/08/97 CREEK
0936 PM 5 NW DEPEW OK 60 MPH TSTM GUST
10/08/97 CREEK
1020 PM 3 S DEPEW OK .88 INCH HAIL
10/08/97 CREEKLocal storm report, Oct 8, 10:25 PM CDT, 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1024 PM CDT WED OCT 08 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0934 PM 5 NW DEPEW OK .88 INCH HAIL
10/08/97 CREEK
0936 PM 5 NW DEPEW OK 60 MPH TSTM GUST
10/08/97 CREEK
1020 PM 3 S DEPEW OK .88 INCH HAIL
10/08/97 CREEKThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 8, 7:46 PM CDT | Tornado Warning | TSA | Osage | 44 min |
| Oct 8, 8:26 PM CDT | Tornado Warning | TSA | Osage | 49 min |
| Oct 8, 8:31 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 59 min |
| Oct 8, 9:34 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 41 min |
| Oct 8, 10:08 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 52 min |
| Oct 8, 11:29 PM CDT | Severe Thunderstorm Warning | TSA | Wagoner | 61 min |
| Oct 8, 11:49 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 56 min |
| Oct 9, 1:29 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 46 min |
| Oct 9, 2:17 AM CDT | Flash Flood Warning | TSA | Muskogee | 3 hr |
| Oct 9, 2:30 AM CDT | Severe Thunderstorm Warning | TSA | Adair | 45 min |
| Oct 9, 2:43 AM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 32 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1997Every severe thunderstorm warning in 1997
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.