Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 474, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Jun 23, 1996, 4:46 PM CDT for Ellis County, Oklahoma. It was in force for 44 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
- Jun 23, 1996, 4:46 PM CDT (21:46 UTC)
- Expired
- Jun 23, 1996, 5:30 PM CDT
- In force
- 44 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Ellis County, OK
The radar
The Vance AFB radar (KVNX), 157 km from the middle of the area, began a volume at 21:47 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 |
|---|---|---|---|
| Jun 23, 5:00 PM CDT | Hail 0.75 | Shattuck, 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
Dodge City, (KDDC), launched 12:00Z, 9.8 hours before the alert went out and 173 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
- 219 J/kg
- Mixed-layer CIN
- -490 J/kg
- Mixed-layer LCL
- 1264 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 23, 3:23 PM CDT, 1 hour 23 minutes earlier.
Area forecast discussion, Jun 23, 3:23 PM CDT, 1 hour 23 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 310 PM CDT SUN JUN 23 1996 ONLY MINOR CHGS ANTICIPATED TO REGIONAL WX THROUGH WEEK WITH CONTD WARM TEMPS AND MINIMAL CHCS FOR PCPN. STG WV DIGGING INTO W COAST TDA WL HELP CARVE DEEP COLD TROF NR 130W NEXT FEW DAYS. RESULTING AMPLIFICATION OF DOWNSTREAM PATTERN WL TEND TO ENHANCE RDGG ACROSS CNTRL AND SRN PLNS. CAN SEE LITTLE TO BRING SFC FNT ACROSS CNTRL PLNS SWD OR TROF OVR HI PLNS EWD. THUS WARM TEMPS AND MDT SLY LOW LVL FLOW WL CONT. INCRG ELY COMP TO 850 MB FLOW MAY HELP TO COOL READINGS A COUPLE OF DEGS BY TUES. BEST OPPORTUNITY FOR RELIEF...ESP SRN PTNS OF AREA...LIES IN UPR LOW/TROF OVR WRN GULF. INCRG HGTS ASSOCIATED WTH BLDG RDG WL MAKE IT DIFFICULT FOR UPR TROF TO MOV VERY FAR NW...BUT AVN/ETA SUGGEST INFLUENCE OF TROF MAY EXTEND INTO ARKLATEX AND SERN OK BY LATE MON-TUE WHICH WUD INCRS CHCS FOR AFTN/EVNG CONVECTION OVR SRN PTNS OF FA. OUTSIDE CHC WL ALSO EXIST FOR MNLY EVNG/NGTTIME STMS IN WEST PROVIDING LATE AFTERNOON ACTVY OVR HI PLNS CAN DRIFT INTO AREA. BLDG RDG SHUD BE MAIN WX FEATURE LATE IN WEEK WTH WDLY SCT TRW TAPERING OFF AND TEMPERATURES AOA 100 IN WEST. FCSTID = 16 OKC 72 93 71 92 / 0 10 10 20 HBR 72 97 72 96 / 10 10 10 20 SPS 73 99 72 96 / 10 10 20 20 GAG 70 99 70 97 / 20 10 20 10 PNC 74 99 74 97 / 10 0 10 10 DUA 73 91 72 91 / 10 20 20 20 .OKC... OK...NONE. TX...NONE.
In the hours before
Special weather statement, Jun 23, 12:47 PM CDT, 3 hours 59 minutes before
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</html>The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 5:30 PM CDT | Severe Thunderstorm Warning | OUN | Ellis | 45 min |
| Jun 23, 6:11 PM CDT | Severe Thunderstorm Warning | OUN | Ellis | 64 min |
| Jun 23, 6:53 PM CDT | Flash Flood Warning | OUN | Ellis | 3 hr |
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; radar from the NEXRAD Level II archive.