Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 64, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Mar 29, 1997, 10:12 PM CST for Okfuskee County, Oklahoma. It was in force for 33 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 29, 1997, 10:12 PM CST (04:12 UTC)
- Expired
- Mar 29, 1997, 10:45 PM CST
- In force
- 33 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 04:15 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 29, 10:24 PM CST | Thunderstorm Wind | Okemah, 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 nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 4.2 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
- 132 J/kg
- Mixed-layer CIN
- -180 J/kg
- Mixed-layer LCL
- 2545 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 291 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 300414 RRA SVRTUL OKC107-300445- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1012 PM CST SAT MAR 29 1997 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1045 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL OKLAHOMA ...EASTERN OKFUSKEE COUNTY AT 10:10 PM A SEVERE THUNDERSTORM OVER WELEETKA WAS MOVING EAST AT 40 MPH. THIS STORM HAS PRODUCED QUARTER SIZED HAIL IN WELEETKA. HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 70 MPH CAN BE EXPECTED IN THE WARNED AREA. &
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 29, 9:00 PM CST, 1 hour 12 minutes earlier.
Area forecast discussion, Mar 29, 9:00 PM CST, 1 hour 12 minutes before
FPUS3 KTUL 300257 COR AFDTUL EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 900 PM CST SAT MAR 29 1997 DID A QUICK UPDATED TO SIMPLIFY SKY CONDITION...ADJUST POPS A BIT AND ADD THE MENTION OF THUNDER TO PLACES THAT DID NOT HAVE IT ALREADY. .TUL... OK...NONE. AR...NONE. ABBAS
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 8:50 PM CST | Severe Thunderstorm Warning | TSA | Creek | 55 min |
| Mar 29, 9:26 PM CST | Severe Thunderstorm Warning | TSA | Okfuskee | 49 min |
| Mar 29, 9:30 PM CST | Severe Thunderstorm Warning | TSA | Okmulgee | 45 min |
| Mar 29, 9:49 PM CST | Severe Thunderstorm Warning | TSA | McIntosh, Muskogee | 56 min |
| Mar 29, 10:42 PM CST | Severe Thunderstorm Warning | TSA | McIntosh, Pittsburg | 63 min |
| Mar 29, 11:10 PM CST | Severe Thunderstorm Warning | TSA | Haskell, Sequoyah | 65 min |
| Mar 29, 11:10 PM CST | Severe Thunderstorm Warning | TSA | Adair | 65 min |
| Mar 29, 11:20 PM CST | Severe Thunderstorm Warning | TSA | Latimer, LeFlore | 55 min |
| Mar 30, 12:09 AM CST | Severe Thunderstorm Warning | TSA | LeFlore | 36 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.