Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 388, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Jun 19, 1998, 5:43 PM CDT for Garfield County, Oklahoma. It was in force for 47 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 19, 1998, 5:43 PM CDT (22:43 UTC)
- Expired
- Jun 19, 1998, 6:30 PM CDT
- In force
- 47 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Garfield County, OK
The radar
The Vance AFB radar (KVNX), 51 km from the middle of the area, began a volume at 22:43 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 19, 5:52 PM CDT | Hail 2.75 | Enid, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 19, 5:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lamont, OK (KLMN), launched 12:00Z, 10.7 hours before the alert went out and 38 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
- 7 J/kg
- Mixed-layer CIN
- -416 J/kg
- Mixed-layer LCL
- 2260 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 19, 3:30 PM CDT, 2 hours 13 minutes earlier.
Area forecast discussion, Jun 19, 3:30 PM CDT, 2 hours 13 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 330 PM CDT FRI JUN 19 1998 CU BUBBLING ACROSS WRN ZONES ATTM. SUSPECT THAT WEAK BOUNDARIES STILL LINGER AND WITH ADAS CAPES >= 3000 J/KG ACROSS MUCH OF FA...CANNOT RULE OUT ISOLATED CONVECTION THIS EVENING. UPPER RIDGE TRIES TO BUILD IN OVER THE WEEKEND. BUT FA REMAINS LARGELY ON THE EDGE OF THE RIDGE WITH SHORT WAVES MOVING THROUGH RELATIVELY ZONAL FLOW. WILL LEAVE LOW POPS THROUGH MONDAY. BY TUESDAY RIDGE SHOULD BE STRONG ENOUGH TO INHIBIT CONVECTION. FCSTID = 10 OKC 74 99 74 94 / 20 20 20 20 HBR 73 101 73 94 / 20 20 20 20 SPS 74 105 73 95 / 20 20 20 20 GAG 70 100 67 93 / 20 20 20 20 PNC 74 99 73 94 / 20 20 20 20 DUA 75 99 74 95 / 20 20 20 20 .OUN... OK...NONE. TX...NONE.
In the hours before
Special weather statement, Jun 19, 12:30 PM CDT, 5 hours 13 minutes before
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</html>Special weather statement, Jun 19, 12:30 PM CDT, 5 hours 13 minutes before
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<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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 18, 7:28 PM CDT | Severe Thunderstorm Warning | OUN | Jefferson, Stephens | 47 min |
| Jun 18, 7:43 PM CDT | Severe Thunderstorm Warning | OUN | Carter, Garvin, Murray | 47 min |
| Jun 18, 8:12 PM CDT | Severe Thunderstorm Warning | OUN | Jefferson | 48 min |
| Jun 18, 8:26 PM CDT | Severe Thunderstorm Warning | OUN | Carter | 49 min |
| Jun 18, 8:30 PM CDT | Flash Flood Warning | OUN | Carter, Jefferson | 2 hr |
| Jun 18, 8:45 PM CDT | Severe Thunderstorm Warning | OUN | Love | 45 min |
| Jun 18, 8:59 PM CDT | Severe Thunderstorm Warning | OUN | Jefferson | 46 min |
| Jun 18, 9:15 PM CDT | Severe Thunderstorm Warning | OUN | Carter | 45 min |
| Jun 18, 9:31 PM CDT | Severe Thunderstorm Warning | OUN | Love | 44 min |
| Jun 18, 9:45 PM CDT | Severe Thunderstorm Warning | OUN | Jefferson | 45 min |
| Jun 18, 9:50 PM CDT | Flash Flood Warning | OUN | Love | 115 min |
| Jun 18, 10:14 PM CDT | Severe Thunderstorm Warning | OUN | Love | 46 min |
| Jun 18, 10:29 PM CDT | Severe Thunderstorm Warning | OUN | Jefferson | 46 min |
| Jun 18, 10:30 PM CDT | Flash Flood Warning | OUN | Jefferson | 2 hr |
| Jun 18, 11:16 PM CDT | Severe Thunderstorm Warning | OUN | Stephens | 44 min |
| Jun 19, 12:00 AM CDT | Severe Thunderstorm Warning | OUN | Stephens | 45 min |
| Jun 19, 12:42 AM CDT | Severe Thunderstorm Warning | OUN | Stephens | 48 min |
| Jun 19, 5:22 PM CDT | Severe Thunderstorm Warning | OUN | Garfield, Grant, Kay, Noble | 38 min |
| Jun 19, 5:52 PM CDT | Severe Thunderstorm Warning | OUN | Tillman | 58 min |
| Jun 19, 6:15 PM CDT | Severe Thunderstorm Warning | OUN | Kay | 45 min |
| Jun 19, 6:26 PM CDT | Severe Thunderstorm Warning | OUN | Caddo, Canadian | 49 min |
| Jun 19, 6:30 PM CDT | Severe Thunderstorm Warning | OUN | Garfield, Grant | 30 min |
| Jun 19, 6:54 PM CDT | Tornado Warning | OUN | Garfield | 36 min |
| Jun 19, 6:59 PM CDT | Severe Thunderstorm Warning | OUN | Comanche | 31 min |
| Jun 18, 9:28 PM CDT | Severe Thunderstorm Warning | OUN | Clay | 32 min |
| Jun 18, 9:57 PM CDT | Severe Thunderstorm Warning | OUN | Clay | 33 min |
| Jun 19, 5:15 PM CDT | Severe Thunderstorm Warning | OUN | Baylor, Wilbarger | 45 min |
| Jun 19, 5:52 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Baylor, Wichita, Wilbarger | 58 min |
| Jun 19, 6:19 PM CDT | Severe Thunderstorm Warning | OUN | Baylor | 41 min |
| Jun 19, 6:55 PM CDT | Severe Thunderstorm Warning | OUN | Baylor, Wilbarger | 50 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.