Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 111, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 19, 1996, 7:30 PM CDT for Haskell County, Oklahoma. It was in force for 30 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
- Apr 19, 1996, 7:30 PM CDT (00:30 UTC)
- Expired
- Apr 19, 1996, 8:00 PM CDT
- In force
- 30 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Haskell County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 19, 7:30 PM CDT | Hail 0.75 | Lequire, 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, 0.5 hours before the alert went out and 207 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
- 3785 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 69 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 200030 SVRTUL OKC061-200100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 730 PM CDT FRI APR 19 1996 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST OKLAHOMA ...SOUTHERN AND EASTERN HASKELL COUNTY AT 729 PM...RADAR INDICATED A SEVERE THUNDERSTORM NEAR LEQUIRE. THE STORM WAS MOVING NORTHEAST AT 40 MILES AN HOUR. LEQUIRE AND MCCURTAIN ARE IN THE PATH OF THIS STORM. HAIL TO THE SIZE OF NICKELS 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. 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 Apr 19, 3:43 PM CDT, 3 hours 47 minutes earlier.
Area forecast discussion, Apr 19, 3:43 PM CDT, 3 hours 47 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 340 PM CDT FRI APR 19 1996 FIRST CONCERN IS PSBLTY OF TSTMS DVLPG THIS EVNG OVR ZN 77. 15Z RUC SHOWS CAPE OF 1500 J/KG BY 00Z. 12Z ETA ALSO SHOWS LI ARND -4...K- INDEX ARND 32...AND TOTAL TOTALS ARND 54. FEW CU ALSO NOTED OVR OUACHITA MTNS ON VIS SATLT PIX. CONVRGNC ALONG SFC BNDRY AND LIFT PROVIDED BY MTNS CUD BE ENUF TO BREAK CAP AND KICK OFF AN ISOLD TSTM THIS EVNG. IF A TSTM DOES DVLP...AMOUNT OF INSTABILITY CUD LEAD IT TO BECOME SEVERE. SATURDAY LUKS TO BE A NICE SPRING DAY. SFC BNDRY SETTLES OVR TX WITH HIGH PRES AND COOLER AIR BUILDING OVR AREA. WL MNTN SLT CHC TRW IN ZN 77 IN CASE SFC BNDRY SETTLES JUST A LITTLE FURTHER NORTH THAN XPCTD. OTRW...A MORE ACTIVE JET STREAM SHUD INCRS HIGH CLOUDS...BUT LLVLS REMAIN DRY ON SAT. SAT NT AND SUN...STRONG S/W EMERGES FROM SRN ROCKIES. CYCLOGENESIS IS EVIDENT OVR TX PNHDL AND LOW PRES MOVS OUR WAY. BLEND OF AVN/NGM IS THE MODEL CHOICE FOR THIS FCST PKG. WARM FRONT OVR TX LIFTS BACK NORTH...AND SO DOES MSTR. LLVL THETA-E ADVECTION BULLSEYE OVR EOK SHUD HELP TO RAPIDLY DESTABILIZE ATMOS...AND FRONT WL ALSO PROVIDE STRONG ISENTROPIC LIFT...ESP OVR NRN ZNS. LUKS LIKE RW/TRW ARE A GOOD BET ON SUN...ALTHO DRY PUNCH WORKING ACROSS SRN OK ON SUN MRNG WL REACH MLC BY LATE MRNG...CAUSING RW/TRW TO END THERE BY LATE SUN MRNG. ON MON...ANOTHER S/W EMERGES FROM ROCKIES WITH INVERTED TROF FORMING OVR CNTRL TX. DEEP MSTR XPCTD TO INCRS RAPIDLY AND RW/TRW CHCS SHOOT UP AGAIN. 22 PRELIMS... TUL 056/074 053/072 051 0026 FSM 054/078 053/074 055 2-36 MLC 054/077 055/073 054 2134 BVO 051/072 051/069 0026 FYV 051/072 046/069 0016 IDB 056/078 055/075 3245 BYV 052/074 047/071 0016 .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 |
|---|---|---|---|---|
| Apr 19, 8:19 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 41 min |
| Apr 19, 9:00 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 45 min |
| Apr 19, 9:42 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 48 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1996Every severe thunderstorm warning in 1996
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.