Alert archive / Oklahoma / Flash Flood Warnings in 2017
Flash Flood Warning 2, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at Apr 17, 2017, 5:18 AM CDT for McCurtain County, Oklahoma; Red River County, Texas. It was in force for 7 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 17, 2017, 5:18 AM CDT (10:18 UTC)
- Expired
- Apr 17, 2017, 12:15 PM CDT
- In force
- 7 hr
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Flood severity
- None
Counties McCurtain County, OK, Red River County, TX
The radar
The Western Arkansas radar (KSRX), 173 km from the middle of the area, began a volume at 10:20 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 17, 8:30 AM CDT | FLASH FLOOD | Idabel, OK | FLOODING REPORTED ACROSS K STREET AND MADISON STREETS. ALSO, REPORTS OF SEVERAL STREETS ACROSS IDABEL WITH RISING WATER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Shreveport, LA (KBAD), launched 00:00Z, 10.3 hours before the alert went out and 181 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
- 230 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 1743 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- 3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
355
WGUS54 KSHV 171018
FFWSHV
OKC089-TXC387-171415-
/O.NEW.KSHV.FF.W.0002.170417T1018Z-170417T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Shreveport LA
518 AM CDT MON APR 17 2017
The National Weather Service in Shreveport has issued a
* Flash Flood Warning for...
Southern McCurtain County in southeastern Oklahoma...
Northern Red River County in northeastern Texas...
* Until 915 AM CDT
* At 517 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is expected to
begin shortly. Rainfall amounts of two to three inches an hour
will be possible across the warned area.
* Some locations that will experience flooding include...
Idabel, Broken Bow, Manchester, Wright City, Valliant, Millerton,
Haworth, Garvin, Eagletown, Moon, Cerrogordo, Goodwater, Shinewell,
Woodland, Redland, Kanawha, Glover, America, Kiomatia and Oak Hill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3388 9531 3388 9528 3391 9528 3389 9525
3396 9523 3394 9516 3411 9515 3408 9448
3362 9449 3363 9457 3366 9455 3364 9459
3367 9456 3368 9459 3367 9467 3370 9464
3370 9474 3366 9475 3374 9531
$$
131 follow-up statement
513
WGUS54 KSHV 171409
FFWSHV
OKC089-TXC387-171715-
/O.EXT.KSHV.FF.W.0002.000000T0000Z-170417T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Shreveport LA
909 AM CDT MON APR 17 2017
The National Weather Service in Shreveport has extended the
* Flash Flood Warning for...
Southern McCurtain County in southeastern Oklahoma...
Northern Red River County in northeastern Texas...
* Until 1215 PM CDT
* At 908 AM CDT, local law enforcement reported thunderstorms
producing heavy rain across the warned area. Up to three inches of
rain have already fallen. Flash flooding is already occurring.
Flooding has already been reported in Idabel.
* Some locations that will experience flooding include...
Idabel, Broken Bow, Manchester, Wright City, Valliant, Millerton,
Haworth, Garvin, Eagletown, Moon, Cerrogordo, Goodwater, Shinewell,
Woodland, Redland, Kanawha, Glover, America, Kiomatia and Oak Hill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3388 9531 3388 9528 3391 9528 3389 9525
3396 9523 3394 9516 3411 9515 3408 9448
3362 9449 3363 9457 3366 9455 3364 9459
3367 9456 3368 9459 3367 9467 3370 9464
3370 9474 3366 9475 3374 9531
$$
09The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 2:41 AM CDT | Special Weather Statement | SHV | McCurtain | 64 min |
| Apr 17, 3:14 AM CDT | Special Weather Statement | SHV | McCurtain | 61 min |
| Apr 17, 5:18 AM CDT | Special Weather Statement | SHV | McCurtain | 57 min |
| Apr 17, 4:05 AM CDT | Special Weather Statement | SHV | Red River | 55 min |
| Apr 17, 6:14 PM CDT | Special Weather Statement | SHV | Angelina | 46 min |
Nearby
Flash Flood Warnings in Oklahoma, 2017Flash Flood Warnings in Texas, 2017Every flash flood warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.