Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 328, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 18, 1998, 7:23 PM CDT for Ottawa County, Oklahoma. It was in force for 37 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 18, 1998, 7:23 PM CDT (00:23 UTC)
- Expired
- Jun 18, 1998, 8:00 PM CDT
- In force
- 37 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Ottawa County, OK
The radar
The Tulsa radar (KINX), 100 km from the middle of the area, began a volume at 00:26 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 18, 8:10 PM CDT | Thunderstorm Wind | Quapaw, OK | Several large tree limbs were blown down. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 18, 4:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 0.4 hours before the alert went out and 90 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
- 3542 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1049 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 2.1
- Supercell composite
- 12.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 190023 RRA SVRTUL OKC115-190100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 723 PM CDT THU JUN 18 1998 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN OTTAWA COUNTY IN NORTHEASTERN OKLAHOMA * UNTIL 800 PM CDT * AT 722 PM...NATIONAL WEATHER SERVICE RADAR DETECTED A SEVERE THUNDERSTORM NEAR COMMERCE...MOVING EAST AT 20 MPH. * SOME LOCATIONS AFFECTED INCLUDE... PICHER QUAPAW HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
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 Jun 18, 4:10 PM CDT, 3 hours 13 minutes earlier.
Area forecast discussion, Jun 18, 4:10 PM CDT, 3 hours 13 minutes before
FPUS3 KTUL 182111 AFDTUL EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 410 PM CDT THU JUN 18 1998 PROBLEM(S) OF THE DAY: POPS WILL THERE BE SEVERE CONVECTION? WILL THE CONVECTION BE SCATTERED OR NUMEROUS? CONVECTION STARTING TO FIRE ACROSS E OK ALONG SFC FRONT...AND WOULD EXPECT FURTHUR DEVELOPMENT IN SERN OK ZNS. SOME OF THE ACTIVITY COULD BECOME SVR GIVEN INSTABILITY AND COOLING MID LEVEL TEMPS. MODELS PROG FRONT TO GET HUNG UP ACROSS NW AR EXTENDING THROUGH SE OK. MODELS SUGGEST IT WASHING OUT BY LATE AFTERNOON TOMORROW. AFTER ACTIVITY DIMINISHES OVERNIGHT TONIGHT...WILL GO WITH A SLIGHT CHANCE POPS ACROSS NRN ZNS TOMORROW NIGHT...ETA DUMPS SOME PRECIP IN RESPONSE TO A WK S/W BRUSHING THE AREA. OTHERWISE SOUTHERLY FLOW WILL DOMINATE LTR PDS. H5 RIDGE BUILDING BACK INTO THE FA WITH TIME...THIS AND WARMING H7 TEMPS LOOKS LIKE DRY HOT WX FOR WEEKEND AND INTO NEXT WEEK. WILL KEEP EXTENDED DRY WITH THE NRN ZNS GETTING A SLIGHT MENTION SUN NITE AND EARLY MON MORN AS MODELS HINT AT SOME ELEVATED CONVECTION(LIKE WHAT WAS SEEN THIS MORNING). FCSTID = 23 TUL 71 94 74 94 / 30 10 20 0 FSM 72 94 72 95 / 40 10 0 0 MLC 72 94 73 94 / 40 10 0 0 BVO 67 94 72 94 / 30 10 20 0 FYV 67 92 69 91 / 40 10 20 0 IDB 73 94 72 95 / 30 10 0 0 BYV 67 92 69 91 / 40 10 0 0 MIO 70 94 73 93 / 40 10 20 0 MKO 72 94 73 94 / 40 10 0 0 F10 71 94 74 94 / 40 10 0 0 HHW 73 94 72 95 / 40 10 0 0 .TUL... OK...NONE. AR...NONE. --------------------- EXPERIMENTAL OUTPUT: GENERAL WEATHER EXPECTED NEXT 24 HOURS: CONVECTIVE PRECIP HAZARDOUS WEATHER EXPECTED NEXT 24 HOURS: CHANCE SEVERE THUNDERSTORMS NGM CONFIDENCE: 3 ON A SCALE OF 0 TO 10 ETA CONFIDENCE: 6 ON A SCALE OF 0 TO 10 AVN CONFIDENCE: 0 ON A SCALE OF 0 TO 10 FCST CONFIDENCE: 6 ON A SCALE OF 0 TO 10
In the hours before
Local storm report, Jun 18, 5:33 PM CDT, 1 hour 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
533 PM CDT THU JUN 18 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0955 PM 5 N CLAYTON OK 1 INCH HAIL
06/18/98 PUSHMATAHA
1030 PM 1 W WHITESBORO OK WIND DAMAGE
06/18/98 LE FLORE TREE LIMB DOWN ACROSS ROAD
AND TREES KNOCKED DOWN
JUST WEST OF WHITESBORO.Local storm report, Jun 18, 5:43 PM CDT, 1 hour 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
543 PM CDT THU JUN 18 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0955 PM STIGLER OK 1.75 INCH HAIL
06/18/98 HASKELL
0955 PM STIGLER OK 60 MPH TSTM GUST
06/18/98 HASKELL LARGE TREE LIMBS KNOCKED
DOWN.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 7:11 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 64 min |
| Jun 18, 7:15 PM CDT | Tornado Warning | TSA | Muskogee, Wagoner | 30 min |
| Jun 18, 7:33 PM CDT | Tornado Warning | TSA | Cherokee | 42 min |
| Jun 18, 7:36 PM CDT | Tornado Warning | TSA | McIntosh, Okmulgee | 39 min |
| Jun 18, 7:44 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 61 min |
| Jun 18, 7:49 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 56 min |
| Jun 18, 7:54 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 51 min |
| Jun 18, 8:14 PM CDT | Tornado Warning | TSA | McIntosh | 46 min |
| Jun 18, 8:19 PM CDT | Severe Thunderstorm Warning | TSA | Latimer | 56 min |
| Jun 18, 8:40 PM CDT | Tornado Warning | TSA | Haskell, Pittsburg | 50 min |
| Jun 18, 8:53 PM CDT | Tornado Warning | TSA | Latimer | 37 min |
| Jun 18, 9:05 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, Pittsburg | 55 min |
| Jun 18, 9:08 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 37 min |
| Jun 18, 9:12 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore, Pushmataha | 63 min |
| Jun 18, 9:31 PM CDT | Tornado Warning | TSA | Latimer | 44 min |
| Jun 18, 9:34 PM CDT | Flash Flood Warning | TSA | Latimer | 2 hr |
| Jun 18, 9:42 PM CDT | Tornado Warning | TSA | Sequoyah | 48 min |
| Jun 18, 10:07 PM CDT | Tornado Warning | TSA | LeFlore | 38 min |
| Jun 18, 10:14 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 61 min |
| Jun 18, 10:20 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 40 min |
| Jun 18, 10:22 PM CDT | Severe Thunderstorm Warning | TSA | Latimer | 38 min |
| Jun 18, 10:25 PM CDT | Tornado Warning | TSA | Pittsburg | 50 min |
| Jun 18, 10:56 PM CDT | Tornado Warning | TSA | Latimer | 49 min |
| Jun 18, 11:17 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 43 min |
| Jun 18, 11:23 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 37 min |
| Jun 18, 11:24 PM CDT | Tornado Warning | TSA | Pushmataha | 51 min |
| Jun 18, 11:26 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 49 min |
| Jun 18, 11:41 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 64 min |
| Jun 18, 11:50 PM CDT | Flash Flood Warning | TSA | Latimer | 100 min |
| Jun 18, 11:55 PM CDT | Severe Thunderstorm Warning | TSA | Latimer | 35 min |
| Jun 19, 12:07 AM CDT | Severe Thunderstorm Warning | TSA | Haskell | 53 min |
| Jun 19, 12:44 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 46 min |
| Jun 19, 1:06 AM CDT | Severe Thunderstorm Warning | TSA | Haskell | 54 min |
| Jun 19, 1:29 AM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pittsburg | 61 min |
| Jun 19, 1:59 AM CDT | Severe Thunderstorm Warning | TSA | Haskell | 31 min |
| Jun 19, 2:11 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 64 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; radar from the NEXRAD Level II archive.