Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 216, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at May 6, 1995, 12:52 PM CDT for Cleveland County, McClain County, Oklahoma. It was in force for 53 min.
The area
The counties it named.
The facts
- Issued
- May 6, 1995, 12:52 PM CDT (17:52 UTC)
- Expired
- May 6, 1995, 1:45 PM CDT
- In force
- 53 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Cleveland County, OK, McClain County, OK
The radar
The Norman radar (KTLX), 27 km from the middle of the area, began a volume at 17:55 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.
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 5.9 hours before the alert went out and 13 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
- 202 J/kg
- Mixed-layer CIN
- -209 J/kg
- Mixed-layer LCL
- 601 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 210 m²/s²
- 0-3 km storm-relative helicity
- 328 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.7
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 May 6, 4:07 AM CDT, 8 hours 45 minutes earlier.
Area forecast discussion, May 6, 4:07 AM CDT, 8 hours 45 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OKLAHOMA CITY OKLAHOMA 405 AM CDT SAT MAY 6 1995 LOOKS LIKE A CPL OF ROUGH DAYS COMING UP. UPR SYS CONTS TO COIL ARND ITSELF OUT W...AND GULF MSTR CONTS TO STREAM NWWD ACRS TX. TROPICAL CONNECTION IS ALSO IN PLACE. BLV THAT WDSPD RN/TRW LKLY TDA AND TNGT ACRS MOST OF THE FA. MODELS PUT GRTST INSTAB AND LOW LVL MSTR CNVRGNC IN SWRN ZNS THIS AFTN AND ERLY EVE...AND THIS APPEARS TO BE MOST LKLY AREA FOR SVR WX THEN. FARTHER E...THE COMBINATION OF ISENT LIFT AND MODEST INSTAB SHOULD CAUSE FAIRLY PERSISTENT RN/TRW DURG THE DAY AND INHIBIT SVR WX THRU TNGT. NWRN ZNS SHOULD BE ON EDGE OF MAIN RN AREA AND WL PUT LOWEST POPS THERE. SVRL UPR IMPLSS SHOW UP ON WTR VPR IMGRY WHIRLING ARND THE BIG UPR LOW. THESE MAY WELL PROVIDE ANTHR EXCUSE FOR LARGE SCALE TSTM DVLPMT TDA THRU SUN AS THEY MOVE INTO THE RGN. WAS CONTEMPLATING A FF WCH FOR ABT THE SRN 1/3 OF FA FOR TNGT. THE UNCERTAINTY OF IF/WHERE HVY PCPN WL OCCUR TIPPED THE BALANCE AGAINST ACTUALLY ISSUING IT. DAY SHIFT CAN REEVALUATE THE SITN AND SEE IF IT IS NEEDED THEN. IT DOES APPEAR THAT THE SITN WL NOT CHG VRY MUCH OVRNT AS GULF FLOW CONTS...AIDED AT NGT BY STG LLJ. HVY RNFL WL CONT TO BE A PSBLTY...AND IN WRN ZNS THERE WL CONT TO BE A CHC OF SVR WX. THE CHC OF SVR WX APPEARS HIEST ON SUN AS MAIN VORT MAX WHIPS OUT OF THE SWRN STATES. HI INSTAB AND LOTS OF MSTR ARE FCST TO RMN ACRS MOST OF THE FA ON SUN. THE UPR SYS SHOULD HELP NUDGE THE DRYLN E INTO THE WRN PT OF THE FA...PROVIDING ESSENTIALLY EVERYTHING A SVR STM COULD EVER WANT. WOULD HOPE THAT THERE WL BE SOME CLRG BHD THE UPR SYS...AT LEAST OF PCPN IF NOT CLDS... LATE SUN NGT AND MON. THIS SEEMS TO BE SUPPORTED BY QUICK LOOK AT NEW MRF. FWC/FAN TEMP GDNC IS NICELY CONSISTENT WITH PREV FCSTS SO WL NOT WANDER FAR FM IT. WL GENLY GO ABV POP GDNC FOR 1ST 2 PDS. FCSTID=23=RS HBR 72 61 73 52 / 80 70 60 30 OKC 70 62 71 55 / 80 70 60 30 SPS 75 63 75 52 / 70 70 50 30 GAG 67 58 70 48 / 40 50 50 30 PNC 68 59 69 55 / 70 70 70 40 DUA 72 62 74 57 / 80 80 70 40 .OKC...NONE. .TX...NONE.
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 4:33 AM CDT | Severe Thunderstorm Warning | OUN | Ellis, Roger Mills | 37 min |
| May 6, 5:26 AM CDT | Severe Thunderstorm Warning | OUN | Harmon, Jackson | 49 min |
| May 6, 6:11 AM CDT | Severe Thunderstorm Warning | OUN | Jackson | 49 min |
| May 6, 6:28 AM CDT | Severe Thunderstorm Warning | OUN | Jackson, Kiowa, Tillman | 47 min |
| May 6, 7:03 AM CDT | Severe Thunderstorm Warning | OUN | Tillman | 42 min |
| May 6, 8:12 AM CDT | Severe Thunderstorm Warning | OUN | Cotton | 63 min |
| May 6, 8:58 AM CDT | Severe Thunderstorm Warning | OUN | Garvin | 62 min |
| May 6, 9:16 AM CDT | Flash Flood Warning | OUN | Cotton, Stephens | 3 hr |
| May 6, 11:34 AM CDT | Severe Thunderstorm Warning | OUN | Love | 41 min |
| May 6, 12:39 PM CDT | Severe Thunderstorm Warning | OUN | Grady | 51 min |
| May 6, 5:26 AM CDT | Severe Thunderstorm Warning | OUN | Foard | 49 min |
| May 6, 5:55 AM CDT | Severe Thunderstorm Warning | OUN | Knox | 50 min |
| May 6, 6:11 AM CDT | Severe Thunderstorm Warning | OUN | Foard, Hardeman, Wilbarger | 49 min |
| May 6, 6:52 AM CDT | Severe Thunderstorm Warning | OUN | Knox | 53 min |
| May 6, 7:43 AM CDT | Severe Thunderstorm Warning | OUN | Baylor | 62 min |
| May 6, 7:43 AM CDT | Severe Thunderstorm Warning | OUN | Knox | 12 min |
| May 6, 8:52 AM CDT | Severe Thunderstorm Warning | OUN | Archer, Wichita | 53 min |
| May 6, 9:42 AM CDT | Severe Thunderstorm Warning | OUN | Archer, Clay, Wichita | 48 min |
| May 6, 10:15 AM CDT | Flash Flood Warning | OUN | Archer, Clay | 3 hr |
| May 6, 10:30 AM CDT | Severe Thunderstorm Warning | OUN | Clay | 45 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1995Every severe thunderstorm warning in 1995
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.