Scattered showers and thunderstorms developed during the overnight hours of April 17th across portions of extreme Northeast Texas from near Paris northeast across Northern Red River County and into Southern McCurtain County Oklahoma. These showers and thunderstorms were producing locally heavy rainfall amounts in a narrow line, with another complex of storms which developed south along an…
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS SHV wrote it up.
Scattered showers and thunderstorms developed during the overnight hours of April 17th across portions of extreme Northeast Texas from near Paris northeast across Northern Red River County and into Southern McCurtain County Oklahoma. These showers and thunderstorms were producing locally heavy rainfall amounts in a narrow line, with another complex of storms which developed south along an outflow boundary across Eastern Oklahoma and Western Arkansas overtaking the ongoing storms near the Red River bordering Northeast Texas. The end result was a prolonged period of locally heavy rainfall over Northern Red River County Texas and Southern McCurtain County Oklahoma, which resulted in flooding across a few roads and high water across many others in Idabel.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Shreveport, LA wrote its last area forecast discussion before the first event at Apr 17, 6:14 AM CST, 1 hour 16 minutes earlier.
Area Forecast Discussion National Weather Service Shreveport LA 714 AM CDT Mon Apr 17 2017 .UPDATE... Sent an update this morning to raise pops, mainly to the north and west of the I-30 corridor where widespread thunderstorm activity is currently ongoing. Rainfall rates are near one inch per hour, down from nearly 3 inches per hour earlier in portions of extreme southern McCurtain County where Dual Pole Storm Total Rainfall Rates are maxing out just over 4 inches. Flash Flood Warning remains in effect for this region through 915 am. Left the remaining portions of the forecast in tact along and south of the I-20 corridor but will need to watch closely just how far south this rainfall can make it which would suggest pops needing to be raised further south towards the corridor later this morning. Update already sent...13. && .PREV DISCUSSION... /issued 531 AM CDT Mon Apr 17 2017/ AVIATION... Cluster of stg tstms have been occurring past couple of hours across se OK and extreme ne TX. Although little if any convection is located near areal Terminals, increases will be expected prior to 17/18z at KTXK and probably KELD, with scattered convection expected at KTYR, KGGG, and KSHV by aftn. Small hail is possible in stgr storms, in addition to very heavy rain and fqt ltg strikes. However, mostly VFR conditions expected outside of convection, except at KLFK where low MVFR to ocnl IFR cigs may continue until at least 17/15z./07/ PREV DISCUSSION... /issued 243 AM CDT Mon Apr 17 2017/ DISCUSSION... Subtle parameters coming together for increased chances of showers and thunderstorms across most of the Four State Region today. The first parameter is a weak shortwave embedded in mostly west to east flow aloft across the Southern Plains. This shortwave has helped to generate nocturnal showers and thunderstorms across NE OK/NW AR. This activity has generated a cold pool which is moving southeast towards our region. Ahead of this cold pool, moisture advection from the south and west has helped to ignite scattered showers and thunderstorms across the Middle Red River Valley of NE TX and SE OK early this morning. Models are in pretty good agreement with the convection to our north gradually sinking southward today with the boundary likely near or to the north of the I-20 Corridor by late this aftn. For this reason, have gone likely pops today across our northern third with chance pops further south towards the corridor. Differential heating should result in at least widely scattered pops across our southern third this afternoon as well. The other parameter of interest is what appears to be a remnant MCV which was observed earlier spinning across portions of Central TX just west of our CWA. This feature will continue moving slowly eastward towards our region as well which could only help but enhance scattered convection coverage today given that PWAT values today will be approaching 1.4-1.5 inches. What makes this a difficult forecast is the fact that a lack of convection was witnessed on Sunday to our west in association with the MCV and that model PWAT values have been running a little high as of late and thus, model POP values have been running too high as well. Having said this, did not go with likely to categorical pops areawide today as the GFS would suggest but did go slightly higher than the much drier NAM output which appears too underdone given the above parameters. Wherever the boundary stalls later today will be a focus for evening pops before stabilization takes over and that appears to be across our northeast zones. Therefore, tapered pops from chance variety across our northeast half to slight chance variety across our southwest zones. The subtle shortwave energy begins to stretch out southwest to northeast across our region for Tue turning into little more than a shear axis. Slightly drier PWAT values do try to filter in to our western zones in the wake of this shear axis but chance pops are still warranted across our southeast half for Tue with respect to the shear axis and higher PWATs. The shear axis is all but gone and with the slightly drier air continuing to move into the region from the northwest, have removed pops in the Wed/Wed Night timeframe as flat upper ridging will begin to dominate much of TX into the Lower Miss Valley. Shortwave energy across the Central/Northern Plains for Thu will try to drag a front into portions of OK/AR with the possibility of widely scattered convection across our extreme northern zones Thu/Thu Night timeframe but the front should not make it into our region. We then begin to turn our eyes out west as a much stronger longwave trough moves out of the Inter Mountain West and into the Plains on Friday. Near zonal flow across the Southern Plains ahead of this feature will become southwesterly during the day Friday but especially Friday Night into Saturday when convection should really begin increasing across our region. Will need to be watchful for some of this convection becoming strong to severe, mainly during the day Saturday as the convection will be associated with a strong cold front with ample upper level forcing. The ECMWF is much faster with this system compared to the slower GFS and thus if the front were to encounter a warmer, more unstable atmosphere during the daytime hours on Saturday, there would obviously be more of a severe weather threat. For now, will advertise high end chance pops for Saturday areawide tapering pops back to slight chance variety across our western zones Saturday Night and highlight the possibility of strong to severe weather in our morning Hazardous Weather Outlook. One thing the models to agree on is a much drier and cooler airmass in the wake of this longwave trough for Sunday into the first of next week with low temperatures Sunday Night/Monday Morning in the 40s possible across portions of our region. Prelims to follow...13. && .PRELIMINARY POINT TEMPS/POPS... SHV 84 63 85 63 / 40 30 30 20 MLU 84 62 83 62 / 40 50 40 20 DEQ 76 60 82 59 / 100 50 20 10 TXK 78 61 82 62 / 70 50 20 10 ELD 80 60 82 60 / 60 50 40 20 TYR 82 65 84 63 / 40 20 20 10 GGG 82 64 84 62 / 40 30 20 20 LFK 85 64 85 63 / 30 20 40 20 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...None. LA...None. OK...None. TX...None. && 07/13
Hazardous Weather Outlook National Weather Service Shreveport LA 727 AM CDT Mon Apr 17 2017 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-171800- Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette- Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto- Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn- Grant-Caldwell-La Salle-McCurtain-Bowie-Franklin-Titus-Camp- Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk- Panola-Nacogdoches-Shelby-Angelina-San Augustine- 727 AM CDT Mon Apr 17 2017 This Hazardous Weather Outlook is for portions of south central Arkansas...southwest Arkansas...north central Louisiana... northwest Louisiana...southeast Oklahoma...east Texas and northeast Texas. .DAY ONE...Today and Tonight... Conditions are coming together for increased chances of showers and thunderstorms today. Some of this will be widespread this morning, especially across the Middle Red River Valley of Northeast Texas, Southeast Oklahoma and Southwest Arkansas where excessive heavy rainfall will be possible. Some of these thunderstorms could be strong with strong winds and small hail possible. An isolated severe thunderstorm cannot be completely ruled out producing damaging wind gusts and large hail. Further to the south across Deep East Texas into West Central and East Central Louisiana, thunderstorm development will depend on the degree of daytime heating. Showers and thunderstorms should decrease in coverage and intensity overnight tonight. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday... Scattered showers and thunderstorms will again be possible along and east of a line from Lufkin Texas to Shreveport Louisiana to El Dorado Arkansas on Tuesday before drier air begins to move into the region from the west along with upper level ridging. We then begin to look to our west for late week into the weekend when strong to severe thunderstorms will be possible with the approach of a vigorous upper level trough. Timing for this convection appears to be late Friday Night and throughout the day Saturday before cooler and drier air funnels into the region on Sunday. .SPOTTER INFORMATION STATEMENT... While and isolated strong to severe thunderstorm cannot be ruled out through this evening, activation of emergency management personnel...amateur radio operators...and storm spotters should not be needed through tonight. 13
Special Weather Statement
National Weather Service Shreveport LA
241 AM CDT MON APR 17 2017
OKZ077-TXZ096-170845-
McCurtain OK-Red River TX-
241 AM CDT MON APR 17 2017
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MCCURTAIN AND
NORTHWESTERN RED RIVER COUNTIES UNTIL 345 AM CDT...
At 241 AM CDT, Doppler radar was tracking a strong thunderstorm near
Raymond Gary State Park, or 18 miles east of Hugo, moving northeast
at 25 mph.
Dime size hail and winds in excess of 30 mph will be possible with
this storm.
Locations impacted include...
Idabel, Broken Bow, Manchester, Wright City, Valliant, Millerton,
Garvin, Farmers Hill, Mount Herman, Redland, Silver City, Holly
Creek, Glover, Kiomatia, Slim, Oak Hill and Golden.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.
&&
LAT...LON 3394 9454 3382 9521 3389 9526 3390 9525
3390 9527 3391 9528 3391 9525 3393 9525
3395 9523 3396 9523 3394 9516 3409 9516
3434 9482
TIME...MOT...LOC 0741Z 237DEG 24KT 3394 9519
07Special Weather Statement
National Weather Service Shreveport LA
314 AM CDT MON APR 17 2017
ARZ051-OKZ077-170915-
Howard AR-McCurtain OK-
314 AM CDT MON APR 17 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN HOWARD AND NORTHERN
MCCURTAIN COUNTIES UNTIL 415 AM CDT...
At 313 AM CDT, Doppler radar was tracking a strong thunderstorm 12
miles southeast of Cloudy, or 25 miles northeast of Hugo, moving east
at 40 mph.
Dime size hail and winds in excess of 30 mph will be possible with
this storm.
Locations impacted include...
Wright City, Plunketville, Rufe, Smithville, Hochatown, Watson,
Battiest, Pickens, Mount Herman, Sherwood, Slim, Bethel and Ringold.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.
&&
LAT...LON 3451 9446 3429 9447 3429 9426 3435 9424
3425 9417 3423 9424 3428 9426 3428 9447
3419 9447 3403 9516 3424 9515 3425 9505
3451 9505
TIME...MOT...LOC 0813Z 250DEG 35KT 3418 9512
07Special Weather Statement
National Weather Service Shreveport LA
405 AM CDT MON APR 17 2017
OKZ077-TXZ096-108-171000-
McCurtain OK-Red River TX-Franklin TX-
405 AM CDT MON APR 17 2017
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN MCCURTAIN AND RED
RIVER COUNTIES UNTIL 500 AM CDT...
At 404 AM CDT, Doppler radar was tracking a strong thunderstorm over
Deport, or 12 miles north of Hagansport, moving northeast at 25 mph.
Dime size hail and winds in excess of 30 mph will be possible with
this storm.
Locations impacted include...
Clarksville, Idabel, Bogata, Bagwell, Manchester, Detroit, Avery,
Millerton, Annona, Garvin, Farmers Hill, Negley, Cuthand, Woodland,
Redland, Silver City, English, Kanawha, Kiomatia and Johntown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3388 9531 3388 9528 3390 9528 3391 9527
3389 9527 3391 9525 3403 9488 3362 9474
3357 9475 3334 9531
TIME...MOT...LOC 0904Z 245DEG 20KT 3353 9527
07Special Weather Statement
National Weather Service Shreveport LA
518 AM CDT MON APR 17 2017
OKZ077-171115-
McCurtain OK-
518 AM CDT MON APR 17 2017
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MCCURTAIN COUNTY UNTIL
615 AM CDT...
At 518 AM CDT, Doppler radar was tracking a strong thunderstorm near
Manchester, or 17 miles north of Clarksville, moving northeast at
20 mph.
Dime size hail and winds in excess of 30 mph will be possible with
this storm.
Locations impacted include...
Idabel, Broken Bow, Millerton, Haworth, Garvin, Eagletown, Farmers
Hill, Cerrogordo, Hochatown, Goodwater, Shinewell, Holly Creek,
Glover, Oak Hill and Golden.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3433 9447 3385 9448 3378 9492 3382 9491
3383 9492 3381 9492 3381 9495 3386 9497
3385 9499 3386 9500 3386 9504 3390 9506
3388 9508 3389 9510 3392 9508 3390 9512
3393 9512 3394 9516 3396 9515
TIME...MOT...LOC 1018Z 242DEG 29KT 3386 9508
07The Western Arkansas radar (KSRX), 158 km away, was scanning. The volume nearest the first event began at 13:31 UTC.
1 flash flood. Local standard time, as filed.
The intersection of Southeast K Avenue and Madison Street was flooded. Several other streets across Idabel were covered in high water.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2017Every state in 2017This day in weather historyWarnings in Oklahoma, April 2017
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 684702.