Alert archive / Texas / Flash Flood Warnings in 2018
Flash Flood Warning 3, NWS Norman, OK
NWS Norman, OK issued this flash flood warning at May 14, 2018, 11:42 PM CDT for Wichita County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 14, 2018, 11:42 PM CDT (04:42 UTC)
- Expired
- May 15, 2018, 2:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Flood severity
- None
County Wichita County, TX
The radar
The Altus AFB radar (KFDR), 64 km from the middle of the area, began a volume at 04:44 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 4.7 hours before the alert went out and 168 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
- 1290 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 1625 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
458 WGUS54 KOUN 150442 FFWOUN TXC485-150745- /O.NEW.KOUN.FF.W.0003.180515T0442Z-180515T0745Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Norman OK 1142 PM CDT MON MAY 14 2018 The National Weather Service in Norman has issued a * Flash Flood Warning for... Southeastern Wichita County in northern Texas... * Until 245 AM CDT * At 1142 PM CDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Up to two inches of rain have already fallen. Flash flooding is occurring or is imminent. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be especially cautious at night when it is harder to recognize the dangers of flooding. Please report flooding to your local law enforcement agency when you can do so safely. && LAT...LON 3384 9869 3400 9856 3402 9842 3384 9842 $$ 03
1 follow-up statement
507 WGUS74 KOUN 150737 FFSOUN Flash Flood Statement National Weather Service Norman OK 237 AM CDT TUE MAY 15 2018 TXC485-150747- /O.EXP.KOUN.FF.W.0003.000000T0000Z-180515T0745Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Wichita TX- 237 AM CDT TUE MAY 15 2018 ...THE FLASH FLOOD WARNING FOR SOUTHEASTERN WICHITA COUNTY WILL EXPIRE AT 245 AM CDT... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 3384 9869 3400 9856 3402 9842 3384 9842 $$ MAHALE
What forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at May 14, 6:10 PM CDT, 5 hours 32 minutes earlier.
Area forecast discussion, May 14, 6:10 PM CDT, 5 hours 32 minutes before
Area Forecast Discussion National Weather Service Norman OK 610 PM CDT Mon May 14 2018 .DISCUSSION... Please see the 00Z aviation discussion below. && .AVIATION... Thunderstorms are still expected to impact most of the terminals from 02-06Z tonight. Mid to high clouds will initially increase, with increasing cumulus over the next couple of hours. Some large hail and damaging winds could accompany the storms, especially near CSM, PNC, and SPS. However, will not include any for the time being and will watch closely for necessary amendments. && .PRELIMINARY POINT TEMPS/POPS... Oklahoma City OK 69 84 65 84 / 60 20 40 30 Hobart OK 67 86 64 86 / 70 30 50 20 Wichita Falls TX 69 88 67 88 / 60 30 50 20 Gage OK 64 79 61 84 / 50 30 60 30 Ponca City OK 67 83 64 83 / 70 20 40 50 Durant OK 70 84 66 87 / 40 30 30 30 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...None. TX...None. && 99/99/03
Hazardous weather outlook, May 14, 10:28 PM CDT, 1 hour 14 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Norman OK 1028 PM CDT Mon May 14 2018 OKZ004>048-050>052-TXZ083>090-160330- 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- 1028 PM CDT Mon May 14 2018 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Tonight... .Thunderstorms... There is a Marginal Risk of severe thunderstorms through 1 AM across north central, central, and southern Oklahoma and adjacent parts of north Texas. The Marginal Risk includes locations from near Ponca City to Stillwater to Oklahoma City, Oklahoma, to Wichita Falls, Texas. Damaging wind gusts up to 70 mph and hail up to the size of quarters are possible. ..Heavy Rainfall and Flash Flooding... Locally heavy rainfall of 1 to 3 inches in a short period of time from slow moving thunderstorms may cause flash flooding in a few locations across Oklahoma and western north Texas tonight. .Strong Winds... Strong winds at 40 to 50 mph with isolated gusts to near 60 mph will be possible from decaying thunderstorms across west central and central Oklahoma through 1 AM. In addition to gusty winds, isolated heat bursts are also possible. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday... .Thunderstorms... Some strong to severe thunderstorms with damaging winds as the main hazard are possible Tuesday across parts of Oklahoma and western north Texas, mainly during the late afternoon and evening hours. Low thunderstorm chances are forecast Wednesday through Friday across parts of Oklahoma and north Texas. Severe storm potential remains low Wednesday through Friday. Chances for strong to severe thunderstorms will likely return to parts of Oklahoma and north Texas late Saturday. Thunderstorms may linger on Sunday across parts of Oklahoma and north Texas. .Heavy Rainfall and Flash Flooding... Locally heavy rainfall of 1 to 2 inches in a short period of time from slow moving thunderstorms may cause flash flooding in a few locations across Oklahoma and north Texas Tuesday and Wednesday. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook. Mahale
In the hours before
Special weather statement, May 14, 10:32 PM CDT, 1 hour 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1032 PM CDT MON MAY 14 2018
OKZ037>039-044-150400-
Tillman OK-Cotton OK-Stephens OK-Comanche OK-
1032 PM CDT MON MAY 14 2018
...SIGNIFICANT WEATHER ADVISORY FOR southeastern Tillman...Cotton...
west central Stephens and central Comanche Counties Until 1100 PM
CDT...
AT 1031 PM CDT, a strong thunderstorm was located 5 miles northwest
of Cookietown, moving northeast at 25 MPH.
HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 50 MPH...
Minor flooding in areas of poor drainage...
Frequent cloud to ground lightning...
Locations impacted include...
Lawton, Duncan, Walters, Geronimo, Grandfield, Temple, Chattanooga,
Randlett, Medicine Park, Devol, Faxon, Cookietown, Lake Lawtonka,
Fort Sill, Hulen, Taylor, eastern Wichita Mountains Wildlife Refuge
and Mount Scott.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Severe weather is not expected and no warnings are anticipated at
this time.
&&
LAT...LON 3412 9856 3413 9855 3416 9860 3417 9865
3415 9867 3413 9874 3423 9879 3482 9850
3450 9799 3415 9834 3416 9837 3415 9838
3413 9838 3413 9840 3411 9840 3406 9847
TIME...MOT...LOC 0331Z 233DEG 21KT 3432 9854
03Special weather statement, May 14, 10:39 PM CDT, 1 hour 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1039 PM CDT MON MAY 14 2018
OKZ044-045-TXZ086-090-150415-
Cotton OK-Jefferson OK-Clay TX-Wichita TX-
1039 PM CDT MON MAY 14 2018
...SIGNIFICANT WEATHER ADVISORY FOR southern Cotton...west central
Jefferson...northwestern Clay and eastern Wichita Counties Until 1115
PM CDT...
AT 1036 PM CDT, a strong thunderstorm was located over eastern
Wichita Falls, moving northeast at 30 MPH.
HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 50 MPH...
Frequent cloud to ground lightning...
Locations impacted include...
Wichita Falls, Burkburnett, Byers, Dean, Sheppard AFB, Pleasant
Valley, Charlie and Cashion.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Severe weather is not expected and no warnings are anticipated at
this time.
&&
LAT...LON 3392 9863 3414 9858 3417 9802 3383 9851
3384 9853
TIME...MOT...LOC 0336Z 219DEG 25KT 3392 9849
03Special weather statement, May 14, 10:43 PM CDT, 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1043 PM CDT MON MAY 14 2018
TXZ085-086-088-089-150415-
Wichita TX-Archer TX-Wilbarger TX-Baylor TX-
1043 PM CDT MON MAY 14 2018
...SIGNIFICANT WEATHER ADVISORY FOR northwestern Wichita...
northwestern Archer...southeastern Wilbarger and northeastern Baylor
Counties Until 1115 PM CDT...
AT 1042 PM CDT, a strong thunderstorm was located 5 miles west of
Lake Diversion, moving northeast at 30 MPH.
HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 50 MPH...
Frequent cloud to ground lightning...
Locations impacted include...
Burkburnett, Iowa Park, Electra, Lake Diversion and Haynesville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Severe weather is not expected and no warnings are anticipated at
this time.
&&
LAT...LON 3371 9903 3380 9915 3417 9888 3417 9887
3415 9887 3416 9886 3412 9875 3415 9862
3409 9853
TIME...MOT...LOC 0342Z 219DEG 24KT 3381 9905
03Special weather statement, May 14, 10:45 PM CDT, 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1045 PM CDT MON MAY 14 2018
OKZ029-150415-
Cleveland OK-
1045 PM CDT MON MAY 14 2018
...SIGNIFICANT WEATHER ADVISORY FOR northern Cleveland County Until
1115 PM CDT...
AT 1043 PM CDT, a strong thunderstorm was located over western
Norman, moving east at 25 MPH.
HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 50 MPH...
Frequent cloud to ground lightning...
Locations impacted include...
Southern Oklahoma City, Norman, Moore, Stanley Draper Lake and Lake
Thunderbird.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Severe weather is not expected and no warnings are anticipated at
this time.
&&
LAT...LON 3517 9720 3516 9744 3523 9756 3527 9756
3530 9757 3538 9758 3538 9732
TIME...MOT...LOC 0343Z 260DEG 22KT 3524 9749
03Special weather statement, May 14, 11:09 PM CDT, 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1109 PM CDT MON MAY 14 2018
TXZ086-150445-
Wichita TX-
1109 PM CDT MON MAY 14 2018
...SIGNIFICANT WEATHER ADVISORY FOR southeastern Wichita County Until
1145 PM CDT...
AT 1109 PM CDT, a strong thunderstorm was located 4 miles southeast
of Iowa Park, moving northeast at 20 MPH.
HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts over 50 MPH...
Minor flooding in areas of poor drainage...
Frequent cloud to ground lightning...
Locations impacted include...
Wichita Falls, Iowa Park, Sheppard AFB, Pleasant Valley and Cashion.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the weather situation closely and be alert for threatening
weather conditions.
&&
LAT...LON 3384 9863 3391 9873 3409 9853 3406 9848
3408 9842 3384 9842
TIME...MOT...LOC 0409Z 235DEG 17KT 3390 9863
03Special weather statement, May 14, 11:22 PM CDT, 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 1122 PM CDT MON MAY 14 2018 TXZ086-089-150515- Wichita TX-Archer TX- 1122 PM CDT MON MAY 14 2018 ...SIGNIFICANT WEATHER ADVISORY FOR south central Wichita and northern Archer Counties Until 1215 AM CDT... AT 1120 PM CDT, a strong thunderstorm was located near Mankins, moving east at 30 MPH. HAZARDS INCLUDE... Hail up to the size of nickels... Wind gusts to 50 MPH... Minor flooding in areas of poor drainage... Frequent cloud to ground lightning... Locations impacted include... Southwestern Wichita Falls, Holliday, Mankins and Lakeside City. PRECAUTIONARY/PREPAREDNESS ACTIONS... Severe weather is not expected and no warnings are anticipated at this time. && LAT...LON 3383 9890 3394 9869 3375 9842 3370 9883 TIME...MOT...LOC 0420Z 252DEG 26KT 3379 9877 03
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 7:19 PM CDT | Special Weather Statement | OUN | Hardeman | 26 min |
| May 14, 10:39 PM CDT | Special Weather Statement | OUN | Clay | 36 min |
| May 14, 10:43 PM CDT | Special Weather Statement | OUN | Wichita | 32 min |
| May 14, 11:09 PM CDT | Special Weather Statement | OUN | Wichita | 36 min |
| May 14, 11:22 PM CDT | Special Weather Statement | OUN | Wichita | 53 min |
| May 14, 11:25 PM CDT | Areal Flood Advisory | OUN | Archer, Wichita | 3 hr |
| May 14, 11:37 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Wichita | 23 min |
| May 15, 12:25 AM CDT | Special Weather Statement | OUN | Clay | 35 min |
Nearby
Flash Flood Warnings in Texas, 2018Every flash flood warning in 2018
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.