Alert archive / Texas / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 61, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at May 18, 1990, 7:05 PM CDT for Wheeler County, Texas. It was in force for 55 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 18, 1990, 7:05 PM CDT (00:05 UTC)
- Expired
- May 18, 1990, 8:00 PM CDT
- In force
- 55 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties
County Wheeler County, TX
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 18, 7:35 PM CDT | Hail 1.75 | Wheeler, TX |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 0.1 hours before the alert went out and 131 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
- 689 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 2409 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -207 m²/s²
- 0-3 km storm-relative helicity
- 239 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
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.
In the hours before
Special weather statement, May 18, 2:39 PM CDT, 4 hours 26 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, May 18, 4:38 PM CDT, 2 hours 27 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, May 18, 5:37 PM CDT, 1 hour 28 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, May 18, 5:57 PM CDT, 1 hour 8 minutes before
TTAATX KAMA 182257 TXZ001>012-COZ015>017-NMZ005-009-013-OKZ001>004-009-014-021- KSZ003-006-190050- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AMARILLO TX 556 PM CDT FRI MAY 18 1990 ...TORNADO WATCH 264 IS IN EFFECT FOR THE EASTERN TWO-THIRDS OF THE TEXAS AND OKLAHOMA PANHANDLES UNTIL 10 PM CDT... LATEST WEATHER MAPS SHOW THAT A DRYLINE WAS LOCATED FROM JUST WEST OF LIBERAL KANSAS...TO JUST WEST OF AMARILLO...AND TO BETWEEN WINK AND MIDLAND TEXAS. AIR BEHIND THE DRYLINE IS TOO DRY TO SUPPORT THUNDERSTORMS SO DALLAM...HARTLEY...OLDHAM...DEAF SMITH...PARMER...AND CASTRO COUNTIES OF THE TEXAS PANHANDLE HAVE BEEN DROPPED FROM TORNADO WATCH 264. EAST OF THE DRYLINE THE ATMOSPHERE WAS STILL QUITE MOIST AND UNSTABLE. A TROUGH OF LOW PRESSURE WAS ALSO LOCATED IN THE EASTERN TEXAS PANHANDLE. A LINE OF SHOWERS AND THUNDERSHOWERS WAS DEVELOPING NEAR THIS TROUGH AT 550 PM CDT NEAR CLARENDON AND ALANREED. THESE SHOWERS ARE EXPECTED TO INCREASE IN INTENSITY OVER THE NEXT HOUR. ANOTHER THUNDERSTORM WAS JUST EAST OF SPEARMAN WAS MOVING INTO OCHILTREE COUNTY. MOVEMENT OF ALL PRECIPITATION WAS NORTHEAST AT 25 MILES AN HOUR. TWG
Special weather statement, May 18, 6:33 PM CDT, 32 minutes before
TXZ001>012-COZ015>017-NMZ005-009-013-OKZ001>004-009-014-021- KSZ003-006-190040- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE AMARILLO TX 632 PM CDT FRI MAY 18 1990 ...THUNDERSTORMS ARE INCREASING IN INTENSITY IN THE EASTERN TEXAS PANHANDLE THIS EVENING... AT 625 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAIN AND POSSIBLY SOME SMALL HAIL AND GUSTY WINDS WERE LOCATED NEAR PERRYTON...MCLEAN...AND 12 MILES NORTHWEST OF SHAMROCK. MOVEMENT WAS NORTHEAST AT 30 MILES AN HOUR. REMEMBER A TORNADO WATCH IS IN EFFECT UNTIL 10PM CDT FOR THE EASTERN TWO-THIRDS OF THE TEXAS AND OKLAHOMA PANHANDLES. A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR THE FORMATION OF SEVERE THUNDERSTORMS AND POSSIBLY TORNADOES. RESIDENTS OF WHEELER...OCHILTREE...AND LIPCOMB COUNTIES OF THE TEXAS PANHANDLE SHOULD BE ESPECIALLY ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS THIS EVENING. STAY TUNED TO YOUR NOAA WEATHER RADIO OR LOCAL RADIO/TV STATIONS FOR LATER UPDATES AND STATEMENTS. TWG
Local storm report, May 18, 6:57 PM CDT, 8 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO, TX
656 PM CDT FRI MAY 18 1990
STORM REPORT FOR AFTN AND EVENING OF MAY 18
1732 CST...DIME TO QUARTER SIZE HAIL IN PERRYTON. RPT BY PD.
1748 CST...GOLFBALL SIZE HAIL IN PERRYTON. RPT BY PD.
1745 CST...2 1/2 INCH DIAMETER HAIL 2 MILES SW OF PERRYTON. RPT BY
OFF DUTY WEATHER SERVICE PERSONNEL.
1753 CST...BASEBALL TO GRAPEFRUIT SIZE HAIL IN PERRYTON. RPT BY PD.
WSO AMA
TWGThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 7:56 PM CDT | Tornado Warning | AMA | Wheeler | 49 min |
| May 18, 7:41 PM CDT | Severe Thunderstorm Warning | AMA | Beaver | 64 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1990Every severe thunderstorm warning in 1990
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.