Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 47, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Mar 25, 1997, 12:50 AM CST for Delaware County, Mayes County, Oklahoma. It was in force for 40 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
- Mar 25, 1997, 12:50 AM CST (06:50 UTC)
- Expired
- Mar 25, 1997, 1:30 AM CST
- In force
- 40 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Delaware County, OK, Mayes County, OK
The radar
The Tulsa radar (KINX), 53 km from the middle of the area, began a volume at 07:09 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 |
|---|---|---|---|
| Mar 25, 12:52 AM CST | Thunderstorm Wind | Jay, 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 |
|---|---|---|---|
| Mar 25, 12:15 AM CST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 6.8 hours before the alert went out and 124 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
- 72 J/kg
- Mixed-layer CIN
- -342 J/kg
- Mixed-layer LCL
- 2277 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 195 m²/s²
- 0-3 km storm-relative helicity
- 470 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 250652 RRA SVRTUL OKC041-097-250730- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1250 AM CST TUE MAR 25 1997 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 130 AM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST OKLAHOMA ...SOUTHERN DELAWARE COUNTY...SOUTHERN MAYES COUNTY AT 1250 AM...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM NEAR CHOUTEAU TO NEAR GROVE...MOVING EAST SOUTHEAST AT ABOUT 30 MPH. JAY... LOCUST GROVE...COLCORD...AND KANSAS ARE IN THE PATH OF THESE STORMS. HAIL TO THE SIZE OF NICKLES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. 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 Mar 24, 9:44 PM CST, 3 hours 6 minutes earlier.
Area forecast discussion, Mar 24, 9:44 PM CST, 3 hours 6 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE TULSA OK 940 PM CST MON MAR 24 1997 STG/SVR TSTMS STRETCHING ALNG FNT ACRS ERN KS INTO N-CNTL AND NW OK THIS EVNG. FNT CONTG TO SAG SLOWLY TO THE SE AND WL BE ENTERING NWRN PART OF FA IN THE NXT HR OR SO. TIMING OF FNT IN PREV PKG STILL LOOKS GOOD...AND SHLD BE THRU MOST OF FA BY ARND 12Z. GUSTY SOUTH WINDS HAVE DIMINISHED A LTL THRU THE EVNG...ESPECIALLY OVR ERN AND SRN PARTS OF FA. WL UPDATE ZNS AND DROP WIND ADVSY FOR NOW...BUT WL HAVE TO WATCH FOR GUSTY NRLY WNDS BEHIND FNT AND MAY HAVE TO REISSUE FOR NWRN PART OF FA LATER. OTHERWISE DO NOT PLAN ON ANY OTHER BIG CHGS FOR NOW. WL LIKELY UPDATE ZNS AGN ARND MIDNIGHT AS FNT/SQUALL LN BEGINS TO PROGRESS ACRS THE AREA. DECIDED TO KEEP WIND ADVISORY IN EFFECT FOR MUCH OF NE OK TNGT AS MESONET SHOWING STG NRLY WNDS MOVG IN BHND FNT. ...04... .TUL... OK...WND ADVSY FOR TNGT ZNS 54>67. A.R...NONE.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 24, 10:06 PM CST | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 54 min |
| Mar 24, 10:41 PM CST | Tornado Warning | TSA | Osage | 49 min |
| Mar 24, 10:50 PM CST | Severe Thunderstorm Warning | TSA | Pawnee | 40 min |
| Mar 24, 11:05 PM CST | Severe Thunderstorm Warning | TSA | Washington | 40 min |
| Mar 24, 11:18 PM CST | Severe Thunderstorm Warning | TSA | Tulsa | 42 min |
| Mar 24, 11:24 PM CST | Severe Thunderstorm Warning | TSA | Nowata, Rogers | 66 min |
| Mar 24, 11:40 PM CST | Severe Thunderstorm Warning | TSA | Craig, Mayes | 50 min |
| Mar 24, 11:49 PM CST | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee | 41 min |
| Mar 24, 11:58 PM CST | Severe Thunderstorm Warning | TSA | Tulsa | 47 min |
| Mar 25, 12:02 AM CST | Severe Thunderstorm Warning | TSA | Okfuskee | 58 min |
| Mar 25, 12:05 AM CST | Severe Thunderstorm Warning | TSA | Delaware, Ottawa | 55 min |
| Mar 25, 12:25 AM CST | Severe Thunderstorm Warning | TSA | Mayes | 35 min |
| Mar 25, 12:28 AM CST | Severe Thunderstorm Warning | TSA | Creek | 32 min |
| Mar 25, 12:39 AM CST | Severe Thunderstorm Warning | TSA | Okmulgee, Tulsa | 36 min |
| Mar 25, 12:45 AM CST | Severe Thunderstorm Warning | TSA | Muskogee, Wagoner | 60 min |
| Mar 25, 1:19 AM CST | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 56 min |
| Mar 25, 1:52 AM CST | Severe Thunderstorm Warning | TSA | Okmulgee | 68 min |
| Mar 25, 2:14 AM CST | Severe Thunderstorm Warning | TSA | McIntosh | 61 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.