Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 50, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Apr 3, 2019, 6:23 PM CDT for Harmon County, Oklahoma. It was in force for 52 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 3, 2019, 6:23 PM CDT (23:23 UTC)
- Expired
- Apr 3, 2019, 7:15 PM CDT
- In force
- 52 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
County Harmon County, OK
The radar
The Altus AFB radar (KFDR), 90 km from the middle of the area, began a volume at 23:26 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 3, 3:47 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 11.4 hours before the alert went out and 177 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2302 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 309 m²/s²
- 0-3 km storm-relative helicity
- 314 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Apr 3, 2:39 PM CDT, 3 hours 44 minutes earlier.
Area forecast discussion, Apr 3, 2:39 PM CDT, 3 hours 44 minutes before
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</html>Hazardous weather outlook, Apr 3, 11:39 AM CDT, 6 hours 44 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Norman OK 1139 AM CDT Wed Apr 3 2019 OKZ004>048-050>052-TXZ083>090-041645- Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield- Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne- Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-McClain- Cleveland-Pottawatomie-Seminole-Hughes-Harmon-Greer-Kiowa-Jackson- Tillman-Comanche-Stephens-Garvin-Murray-Pontotoc-Coal-Cotton- Jefferson-Carter-Johnston-Atoka-Love-Marshall-Bryan-Hardeman- Foard-Wilbarger-Wichita-Knox-Baylor-Archer-Clay- 1139 AM CDT Wed Apr 3 2019 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Through Tonight... .Thunderstorms... A few thunderstorms could develop near a dryline late this afternoon and early evening in parts of western Oklahoma and western north Texas. A cap and lack of rich moisture will make it difficult for storms to develop. However, lift from the dryline and an approaching system may be enough for a few storms to develop. If storms develop, there is a Slight Risk of severe storms in this area with large hail up to the size of golf balls the primary hazard. Showers and scattered thunderstorms are expected to increase in coverage and spread east this evening and overnight. Some of these storms could become strong to severe with hail up to the size of quarters the main concern. .SPOTTER AND EMERGENCY MANAGEMENT STATEMENT... Storm spotter groups and emergency management personnel across much of Oklahoma and western north Texas should prepare for severe weather operations late this afternoon through the overnight hours. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday... .Thunderstorms... Lingering showers and some thunderstorms will be possible through Thursday morning. However, rain chances will be ending from west to east across the area. Showers and thunderstorms chances will return Friday night and continue into the weekend. A few strong to severe storms may be possible Friday evening in parts of western north Texas. Otherwise, the chance of severe weather appears low at this time. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook.
In the hours before
Special weather statement, Apr 3, 5:55 PM CDT, 28 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 555 PM CDT WED APR 3 2019 OKZ033-032330- Harmon OK- 555 PM CDT WED APR 3 2019 ...SIGNIFICANT WEATHER ADVISORY FOR southwestern Harmon County Until 630 PM CDT.... AT 555 PM CDT, a severe thunderstorm was located 12 miles southwest of Wellington Texas, moving east at 40 MPH. If this storm maintains it's current intensity, a severe thunderstorm warning will be needed for Harmon County before 630 PM. Residents near Hollis and across Harmon County should prepare for this severe thunderstorm. HAZARDS INCLUDE... Hail up to the size of golf balls... Wind gusts over 50 MPH... LAT...LON 3482 10000 3484 9983 3458 9980 3458 10000 TIME...MOT...LOC 2251Z 266DEG 36KT 3469 10030 ..speg.
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 5:55 PM CDT | Special Weather Statement | OUN | Harmon | 35 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2019Every severe thunderstorm warning in 2019
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; radar from the NEXRAD Level II archive.