Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 178, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at May 8, 1998, 8:13 PM CDT for Washita County, Oklahoma. It was in force for 32 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
- May 8, 1998, 8:13 PM CDT (01:13 UTC)
- Expired
- May 8, 1998, 8:45 PM CDT
- In force
- 32 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Washita County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 8, 8:30 PM CDT | Thunderstorm Wind 61 | Sentinel, 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, 1.2 hours before the alert went out and 145 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
- 2072 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 159 m²/s²
- 0-3 km storm-relative helicity
- 181 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 May 8, 3:00 PM CDT, 5 hours 13 minutes earlier.
Area forecast discussion, May 8, 3:00 PM CDT, 5 hours 13 minutes before
FPUS3 KOKC 082001 AFDOKC AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 300 PM CDT FRI MAY 8 1998 SFC LOW DEEPENING SW OF LBB EXPCTD TO COME ENE THIS EVENING AS UPR LOW MIGRATES ACROSS THE SRN ROCKIES. SVR CNVCTN ALREADY IN PROGRESS NR SFC WMFNT UNDER STG DIFL AND UVV. ACTVTY WL SPREAD ACRS MOST OF AREA THIS EVENING...WITH SUPERCELLS S AND HVY RAIN CNTL AND N. OPTED NOT TO ISSUE FLASH FLOOD WATCH OVR AREA BECAUSE OF FAIRLY HIGH FFG VALUES. UPR WV AND SFC LOW SHUD BE OVR SERN OK BY 18Z SAT...WITH PCPN ENDING W TO E OVR AREA BY MIDDAY. SOME LINGERING SHWRS PSBL INTO EARLY AFTN OVR THE E. OTRW...WNDS SHUD BE COMING AROUND TO NLY BEHIND LOW... WITH WK CAA AND LINGERING CLOUDS HOLDING TEMPS DOWN. SAT NGT INTO SUN NGT SHUD BE FAIR AS MSTR GET WIPED EWD AND SFC RDG MOVES IN. UPR RDG AXIS MOVES INTO CNTL OK BY MON MORNG...WITH LEE TROF CRANKING UP AGAIN LTR MONDAY. WL HOLD OFF ON PCPN MON AS MSTR WL TAKE A WHILE TO RETURN. PCPN CHCS RETURN TUE AND WED AS NEXT UPR SYSTEM APCHS. ..04.. GAG 55/65/48/75 +210 PNC 58/69/50/74 +410 HBR 58/72/50/80 +210 SPS 55/75/53/82 +210 OKC 59/71/51/75 +410 DUA 64/72/55/79 ++10 .OKC... OK...NONE. TX...NONE.
In the hours before
Local storm report, May 8, 7:30 PM CDT, 43 minutes before
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</html>Local storm report, May 8, 7:30 PM CDT, 43 minutes before
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</html>Special weather statement, May 8, 8:12 PM CDT, 1 minute before
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</html>Special weather statement, May 8, 8:12 PM CDT, 1 minute before
OKZ004>048-050>052-TXZ083>090-090215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 812 PM CDT FRI MAY 8 1998 ...TORNADO WATCH CONTINUES FOR PORTIONS OF NORTH TEXAS THROUGH 2 AM... A TORNADO WATCH...NUMBER 313...IS IN EFFECT FOR BAYLOR...ARCHER... WICHITA...AND CLAY COUNTIES UNTIL 2 AM. TORNADO WATCHES...NUMBER 311 AND NUMBER 310...THAT WERE IN EFFECT FOR WEST TEXAS AND PARTS OF WESTERN OKLAHOMA HAVE BEEN ALLOWED TO EXPIRE. THE POTENTIAL FOR THUNDERSTORM DEVELOPMENT WILL CONTINUE THROUGH THIS EVENING ACROSS A LARGE PART OF OKLAHOMA AND WESTERN NORTH TEXAS. STAY TUNED FOR LATER STATEMENTS AND POSSIBLE ADDITIONAL WATCHES AND WARNINGS.
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 7:57 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Greer, Kiowa | 18 min |
| May 8, 7:57 PM CDT | Severe Thunderstorm Warning | OUN | Washita | 18 min |
| May 8, 10:02 PM CDT | Severe Thunderstorm Warning | OUN | Beckham | 28 min |
| May 8, 10:27 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Greer | 33 min |
| May 8, 10:59 PM CDT | Severe Thunderstorm Warning | OUN | Custer, Washita | 31 min |
| May 8, 11:18 PM CDT | Tornado Warning | OUN | Washita | 27 min |
| May 8, 11:31 PM CDT | Severe Thunderstorm Warning | OUN | Custer | 29 min |
| May 9, 7:10 AM CDT | Severe Thunderstorm Warning | OUN | Cleveland, Oklahoma | 35 min |
| May 9, 7:50 AM CDT | Severe Thunderstorm Warning | OUN | Lincoln, Pottawatomie | 40 min |
| May 8, 7:42 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Clay | 48 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1998Every severe thunderstorm warning in 1998
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.