Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 18, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Mar 2, 1997, 2:42 PM CST for LeFlore 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 2, 1997, 2:42 PM CST (20:42 UTC)
- Expired
- Mar 2, 1997, 3:15 PM CST
- In force
- 33 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County LeFlore County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 2, 2:50 PM CST | Hail 0.75 | Poteau, OK | A severe thunderstorm produced quarter size hail 2 miles south of Wister and 1 mile northeast of Wister and dime size hail 1 mile north of Poteau. |
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
Springfield, MO (KSGF), launched 12:00Z, 8.7 hours before the alert went out and 237 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
- 1487 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- -213 m²/s²
- 0-3 km storm-relative helicity
- -67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 022044 RRA SVRTUL OKC079-022115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 242 PM CST SUN MAR 2 1997 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 315 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST OKLAHOMA ...NORTHERN LE FLORE COUNTY AT 240 PM...NATIONAL WEATHER SERVICE RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM MOVING NORTH AT 55 MILES AN HOUR INTO NORTHERN LE FLORE COUNTY. REPORTS OF QUARTER SIZE HAIL WERE RECIEVED FROM THE WISTER LAKE AREA AT 235 PM. THE STRONGEST PORTION OF THE STORM WAS LOCATED ABOUT 5 MILES SOUTHWEST OF POTEAU...STORM WILL MOVE INTO THE POTEAU AREA SHORTLY. DAMAGING WINDS WITH GUSTS UP TO 65 MPH MAY OCCUR WITH THIS LINE OF THUNDERSTORMS...IN ADDITION TO QUARTER SIZE HAIL. IF YOU ARE IN THE PATH OF THESE STORMS SEEK SHELTER IMMEDIATELY IN THE LOWEST FLOOR OF YOUR BUILDING OR HOME. STAY AWAY FROM OUTSIDE WALLS AND WINDOWS. IF YOU ARE IN A MOBILE HOME YOU SHOULD MOVE TO A MORE SUBSTANTIAL STRUCTURE IF ONE IS NEARBY. &
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 2, 1:57 PM CST, 45 minutes earlier.
Area forecast discussion, Mar 2, 1:57 PM CST, 45 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION...UPDATED... NATIONAL WEATHER SERVICE TULSA OK 155 PM CST SUN MAR 2 1997 MADE A QUICK UPDATE TO THE ZONES TO MENTION THUNDER ACROSS THE SOUTHERN ZONES. ELEVATED UPRIGHT CONVECTION MAKING ITS WAY FURTHER NORTH OF THE RED RIVER THAN PREVIOUSLY EXPECTED. WL CONT TO MONITOR TRENDS. /GARMON .TUL... OK...NONE. AR...NONE.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 2, 2:10 PM CST | Severe Thunderstorm Warning | TSA | LeFlore | 50 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.