Alert archive / Arkansas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 125, NWS Tulsa, OK

April 16, 1998Sebastian County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 16, 1998, 5:53 AM CDT for Sebastian County, Arkansas. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 16, 1998, 5:53 AM CDT (10:53 UTC)
Expired
Apr 16, 1998, 6:30 AM CDT
In force
37 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Sebastian County, AR

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 10.9 hours before the alert went out and 194 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.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 1998-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 576 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 1998-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 138 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
576 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
731 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
138 m²/s²
0-3 km storm-relative helicity
226 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.8

Open this sounding in Storm Lab

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 Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 16, 4:38 AM CDT, 1 hour 15 minutes earlier.

Area forecast discussion, Apr 16, 4:38 AM CDT, 1 hour 15 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
400 AM CDT THU APR 16 1998

SFC BNDRY APPEARS TO HAVE PUSHED A LTL SOUTH OF THE RED RVR IN XTRM
SE OK THIS MRNG AND SHLD CONT TO SLOWLY PUSH TO THE SOUTH AND EAST.
CURRENTLY HAVE STG/SVR TSTMS ASSOC WITH H85 BNDRY MOVG ACRS E-CNTL OK
AND NW AR.  XPCTD THESE TO CONT ON TO THE NE OF THE AREA AND WEAKEN
OVR THE NXT FEW HRS.  WL CONT TO SEE A CHC OF PRECIP AREAWIDE THRU
THE DAY AS H7 S/WV SWINGS BY...SO WILL GENERALLY GO WITH CHC POPS ALL
ZNS AND ALSO MENTION THUNDER MAINLY OVR SRN AND ERN ZNS FOR THIS
MRNG.

HIGH PRES BUILDING IN WILL KEEP LLVL FLOW FROM THE NORTH EVENTUALLY
TURNING TO THE NE AS CENTER OF HIGH MOVES TO THE NE OF THE AREA.
XPCT PLENTY OF CLDS TO HANG ARND THRU THE FCST...SO SLGTLY COOLER FAN
TEMPS LOOK THE BEST WITH COOLER AIR TOUGH TO DISLODGE.  WILL BRING A
CHC OF RAIN BACK INTO THE FCST FOR FRI NGT AND SAT.

FCSTID = 4
TUL   56  40  59  42 /  30  10  10  30
FSM   63  42  60  45 /  30  10  10  30
MLC   62  42  62  42 /  30  10  10  30
BVO   54  38  58  40 /  30  10  10  30
FYV   59  39  58  40 /  30  10  10  30
IDB   68  46  63  42 /  40  10  10  30
BYV   58  38  58  38 /  30  10  10  30
MIO   56  39  58  40 /  30  10  10  30
MKO   57  40  59  42 /  30  10  10  30
F10   58  41  60  42 /  30  10  10  30
HHW   67  45  63  42 /  40  10  10  30

.TUL...
OK...NONE.
AR...NONE.

In the hours before

Special weather statement, Apr 16, 5:45 AM CDT, 8 minutes before
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Special weather statement, Apr 16, 5:45 AM CDT, 8 minutes before
<!doctype html>
<html lang="en">
<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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The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 15, 7:01 PM CDTSevere Thunderstorm WarningTSALatimer, LeFlore59 min
Apr 15, 7:40 PM CDTSevere Thunderstorm WarningTSAPittsburg50 min
Apr 15, 8:20 PM CDTSevere Thunderstorm WarningTSALeFlore40 min
Apr 15, 8:45 PM CDTSevere Thunderstorm WarningTSALeFlore, Pushmataha60 min
Apr 15, 11:18 PM CDTSevere Thunderstorm WarningTSAChoctaw42 min
Apr 15, 11:55 PM CDTSevere Thunderstorm WarningTSAChoctaw35 min
Apr 16, 2:30 AM CDTSevere Thunderstorm WarningTSAMcIntosh45 min
Apr 16, 2:39 AM CDTSevere Thunderstorm WarningTSALeFlore, Pushmataha36 min
Apr 16, 2:52 AM CDTSevere Thunderstorm WarningTSACherokee, Muskogee38 min
Apr 16, 3:06 AM CDTSevere Thunderstorm WarningTSAAdair, Haskell, Sequoyah54 min
Apr 16, 4:34 AM CDTSevere Thunderstorm WarningTSALatimer56 min
Apr 16, 4:52 AM CDTSevere Thunderstorm WarningTSALeFlore38 min
Apr 16, 4:58 AM CDTSevere Thunderstorm WarningTSAPushmataha47 min
Apr 16, 5:28 AM CDTSevere Thunderstorm WarningTSALeFlore47 min
Apr 15, 7:04 PM CDTSevere Thunderstorm WarningTSASebastian56 min
Apr 15, 7:10 PM CDTSevere Thunderstorm WarningTSAFranklin65 min
Apr 15, 8:40 PM CDTSevere Thunderstorm WarningTSASebastian50 min
Apr 16, 3:27 AM CDTSevere Thunderstorm WarningTSACrawford, Washington63 min
Apr 16, 3:59 AM CDTSevere Thunderstorm WarningTSAFranklin, Madison61 min
Apr 16, 4:30 AM CDTSevere Thunderstorm WarningTSACrawford, Franklin45 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 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; the sounding from the Mesonet's radiosonde archive.