Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 439, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Aug 23, 1999, 5:45 PM CDT for Cherokee County, Muskogee County, Wagoner County, Oklahoma. It was in force for 45 min. 4 reports 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
- Aug 23, 1999, 5:45 PM CDT (22:45 UTC)
- Expired
- Aug 23, 1999, 6:30 PM CDT
- In force
- 45 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Cherokee County, OK, Muskogee County, OK, Wagoner County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 23, 6:00 PM CDT | Thunderstorm Wind 70 | Coweta, OK | Winds gusting to near 80 miles an hour caused significant damage in Coweta. The Coweta Intermediate Grade Center had part of its roof blown off, rendering four of the classrooms unusable. Thirteen houses and businesses near downtown Coweta sustained damage i |
| Aug 23, 6:00 PM CDT | Hail 0.88 | Coweta, OK | |
| Aug 23, 6:10 PM CDT | Hail 1 | Stonebluff, OK | |
| Aug 23, 6:20 PM CDT | Thunderstorm Wind | Haskell, OK | Trees and tree limbs were blown down. An outbuilding lost its roof. A storage building near OK Hwy 104 and Creek Street was blown over. Two large trees were blown onto Duncan Road, blocking traffic for two hours. |
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 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 Aug 23, 3:45 PM CDT, 2 hours earlier.
Area forecast discussion, Aug 23, 3:45 PM CDT, 2 hours before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 345 PM CDT MON AUG 23 1999 PROBLEMS OF THE DAY: WILL THERE BE CONVECTION? WILL THERE BE SEVERE CONVECTION? TEMPERATURES PLAYING A WAITING GAME NOW TO SEE IF CONVECTION FIRES NEAR THE SURFACE LOW CENTERED OVER OSAGE COUNTY AT 20Z. WARM FRONT EXTENDS FROM THE SURFACE LOW TO NEAR CLAREMORE THEN SOUTH TO MUSKOGEE THAN SOUTHEAST TO NORTHERN LE FLORE COUNTY. KINX-88D HAS SHOWN THE PROGRESS OF THE WARM FRONT QUITE NICELY THIS AFTERNOON. THIS BOUNDARY WILL ALSO NEED TO BE WATCHED FOR POTENTIAL CONVECTIVE DEVELOPMENT. SURFACE TROF TRAILING FROM THE LOW THROUGH SOUTHEAST PAWNEE COUNTY INTO CENTRAL OKLAHOMA IS YET ANOTHER BOUNDARY TO MONITOR. THE MAIN LIMITING FACTORS FOR THUNDERSTORM DEVELOPMENT ARE THE RELATIVE LACK OF MOISTURE AND RATHER LIMITED LOW LEVEL CONVERGENCE... ESPECIALLY ALONG THE SURFACE TROF WHERE WINDS ARE VEERED OUT AHEAD OF THE TROF. ALSO MID LEVEL WIND SPEEDS ARE VERY LIGHT ALTHOUGH DIRECTIONAL SHEAR IS FAIRLY DECENT. CONDITIONS APPEAR TO BECOME BETTER FOR CONVECTION BETWEEN 00Z AND 06Z TO THE SOUTH AND EAST OF INTERSTATE 44 AS LOW LEVEL WINDS BACK A BIT AND MID LEVEL WINDS INCREASE SOMEWHAT. THUS ANY CONVECTION WHICH DOES FORM MAY NOT DISSIPATE WITH THE LOSS OF HEATING BUT MAY CONTINUE THROUGH MUCH OF THE NIGHT. COLD FRONT STILL WELL TO THE NORTH AND WILL NOT BE A MAJOR FACTOR IN ANY CONVECTIVE ACTIVITY TONIGHT. THIS FRONT SHOULD REACH NEAR A FORT SMITH TO MCALESTER LINE BY MORNING. WILL GO WITH SLIGHT CHANCE POPS FROM INTERSTATE 44 NORTH AND WEST THIS EVENING AND ALSO SLIGHT CHANCE IN FAR SOUTHEAST OKLAHOMA. WILL GO WITH A LITTLE HIGHER POPS IN BETWEEN WHERE CONVECTIVE PARAMETERS APPEAR MAXIMIZED AFTER 00Z. WILL MAINTAIN LOW POPS IN FAR SOUTHEAST OKLAHOMA TUESDAY AS FRONT SLOWS TO A CRAWL IN THAT AREA. MUCH DRIER AIR FILTERING IN BEHIND THE FRONT ENSURES A SUNNY AND SLIGHTLY COOLER DAY IN ALL BUT FAR SOUTHEAST OKLAHOMA TUESDAY. MINIMAL COLD ADVECTION WILL MEAN ONLY SLIGHTLY LOWER DAYTIME MAXIMUMS BUT MUCH DRIER AIR WILL MAKE FOR PLEASANTLY COOLER NIGHTS. LITTLE IN THE WAY OF CLOUD COVER EXPECTED TUESDAY NIGHT AND WEDNESDAY AS CLOSED UPPER LOW WILL BE WELL TO THE EAST. A WARMING TREND WILL COMMENCE WEDNESDAY WITH THE RETURN OF LIGHT SOUTHEASTERLY WINDS. THE EXTENDED CONTINUES TO LOOK HOT AND DRY AS UPPER RIDGE REMAINS IN CONTROL. ANOTHER COLD FRONT MAY APPROACH THE AREA BY LATE SATURDAY BUT AGAIN APPEARS TO BE MOISTURE STARVED. A BIT COOLER WEATHER MAY BE IN STORE BY SUNDAY IF THIS FRONT DOES INDEED MAKE IT THIS FAR. STAYED FAIRLY CLOSE TO GUIDANCE TEMPERATURES EXCEPT WENT COOLER FOR MINIMUMS TUESDAY NIGHT WITH CLEAR SKIES...DRY AIR AND LIGHT WINDS. FCSTID = 5 TUL 65 93 62 95 / 20 0 0 0 FSM 68 95 64 96 / 30 10 0 0 MLC 68 95 62 97 / 30 10 0 0 BVO 62 92 60 94 / 20 0 0 0 FYV 62 88 55 90 / 30 0 0 0 BYV 62 88 55 90 / 30 0 0 0 MIO 62 90 58 92 / 20 0 0 0 MKO 66 94 62 96 / 30 0 0 0 F10 66 94 62 96 / 30 0 0 0 HHW 70 98 65 98 / 20 20 10 0 .TUL... AR...NONE. OK...NONE. PLATE -------------------- EXPERIMENTAL OUTPUT: HAZARDOUS WEATHER EXPECTED NEXT 24 HOURS: CHANCE SEVERE THUNDERSTORMS NGM CONFIDENCE: 6 ON A SCALE OF 0 TO 10 ETA CONFIDENCE: 8 ON A SCALE OF 0 TO 10 AVN CONFIDENCE: 8 ON A SCALE OF 0 TO 10 FCST CONFIDENCE: 9 ON A SCALE OF 0 TO 10
In the hours before
Special weather statement, Aug 23, 1:10 PM CDT, 4 hours 35 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, Aug 23, 1:10 PM CDT, 4 hours 35 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>Local storm report, Aug 23, 5:36 PM CDT, 9 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>Local storm report, Aug 23, 5:36 PM CDT, 9 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>The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 4:06 PM CDT | Severe Thunderstorm Warning | TSA | Rogers | 39 min |
| Aug 23, 4:36 PM CDT | Severe Thunderstorm Warning | TSA | Haskell | 39 min |
| Aug 23, 5:06 PM CDT | Severe Thunderstorm Warning | TSA | Mayes, Rogers, Wagoner | 39 min |
| Aug 23, 5:35 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 40 min |
| Aug 23, 5:45 PM CDT | Severe Thunderstorm Warning | TSA | Mayes | 45 min |
| Aug 23, 6:08 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee, Tulsa | 52 min |
| Aug 23, 6:30 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 45 min |
| Aug 23, 6:50 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 40 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1999Every severe thunderstorm warning in 1999
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.