Alert archive / Arkansas / Areal Flood Advisories in 2021
Areal Flood Advisory 149, NWS Tulsa, OK
NWS Tulsa, OK issued this areal flood advisory at Oct 14, 2021, 1:45 AM CDT for LeFlore County, Oklahoma; Crawford County, Franklin County, Sebastian County, Arkansas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Oct 14, 2021, 1:45 AM CDT (06:45 UTC)
- Expired
- Oct 14, 2021, 4:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Crawford County, AR, Franklin County, AR, Sebastian County, AR, LeFlore County, OK
The radar
The Western Arkansas radar (KSRX), 8 km from the middle of the area, began a volume at 06:44 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 6.8 hours before the alert went out and 183 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
- 332 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 690 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 213 m²/s²
- 0-3 km storm-relative helicity
- 285 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.0
What forecasters said that day
The local office's own words before this areal flood advisory 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 areal flood advisory went out at Oct 14, 12:52 AM CDT, 53 minutes earlier.
Area forecast discussion, Oct 14, 12:52 AM CDT, 53 minutes before
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</html>Hazardous weather outlook, Oct 13, 7:40 PM CDT, 6 hours 5 minutes before
Hazardous Weather Outlook National Weather Service Tulsa OK 740 PM CDT Wed Oct 13 2021 ARZ001-002-010-011-019-020-029-OKZ049-053>076-141015- Adair OK-Benton AR-Carroll AR-Cherokee OK-Choctaw OK-Craig OK- Crawford AR-Creek OK-Delaware OK-Franklin AR-Haskell OK-Latimer OK- Le Flore OK-Madison AR-Mayes OK-McIntosh OK-Muskogee OK-Nowata OK- Okfuskee OK-Okmulgee OK-Osage OK-Ottawa OK-Pawnee OK-Pittsburg OK- Pushmataha OK-Rogers OK-Sebastian AR-Sequoyah OK-Tulsa OK-Wagoner OK- Washington OK-Washington AR- 740 PM CDT Wed Oct 13 2021 This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...Tonight. SEVERE THUNDERSTORM. RISK...Limited. AREA...Eastern Oklahoma, Northwestern Arkansas, east of Highway 69. ONSET...Ongoing. FLASH FLOOD. RISK...Limited. AREA...Southeastern Oklahoma and Northwestern Arkansas. ONSET...Ongoing. HEAVY RAIN. RISK...Elevated. AREA...Southeastern Oklahoma and Northwestern Arkansas. ONSET...Ongoing. DISCUSSION... Thunderstorms are expected to continue to develop across eastern Oklahoma and northwestern Arkansas through tonight. Atmospheric instability has decreased this evening across the area, but enough will persist overnight, combined with the wind shear that is present, to support a limited threat of severe weather. Heavy rainfall will become more of a concern, as tropical moisture continues to stream into the area. Thunderstorms will be capable of producing very heavy rainfall rates. Some repeat activity over the same areas is also possible as the storms move to the northeast. A Flash Flood Watch remains in effect for much of southeastern Oklahoma and northwestern Arkansas. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Local Spotter Activation May Be Needed. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. THURSDAY...Thunderstorm Potential. FRIDAY...Thunderstorm Potential...High Wind Potential. SATURDAY through TUESDAY...No Hazards. EXTENDED DISCUSSION... There is a limited risk of severe storms Thursday afternoon and night across northeast Oklahoma, eventually spreading into northwest Arkansas by early Friday ahead of a strong cold front. Large hail and damaging winds are the primary threats. Strong north winds can be expected on Friday behind a strong cold front, with gusts 30 to 35 mph expected across eastern Oklahoma. weather.gov/tulsa contains additional information. 69
In the hours before
Special weather statement, Oct 13, 9:08 PM CDT, 4 hours 37 minutes before
Special Weather Statement
National Weather Service Tulsa OK
908 PM CDT Wed Oct 13 2021
OKZ049-074>076-140300-
Haskell OK-Latimer OK-Pushmataha OK-Le Flore OK-
908 PM CDT Wed Oct 13 2021
...Strong thunderstorms will impact portions of southeastern Haskell,
northeastern Pushmataha, eastern Latimer and western Le Flore
Counties through 1000 PM CDT...
At 908 PM CDT, Doppler radar indicated strong thunderstorms along a
line extending from 2 miles north of Lequire to 4 miles southwest of
Red Oak to 3 miles northwest of Kiamichi. Movement was northeast at
40 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down small tree limbs and blow
around unsecured objects.
Locations in or near the path include...
Talihina... Keota...
Red Oak... Mccurtain...
Bokoshe... Fanshawe...
Kinta... Albion...
Talimena State Park... Bengal...
Tuskahoma... Mc Curtain...
Kiamichi... Whitesboro...
Lequire... Panola...
Summerfield... Milton...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3517 9523 3532 9482 3532 9480 3534 9479
3535 9475 3467 9482 3460 9529
TIME...MOT...LOC 0208Z 222DEG 34KT 3515 9510 3491 9514 3468 9522
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
69The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 13, 8:05 PM CDT | Areal Flood Advisory | TSA | Pittsburg | 3 hr |
| Oct 13, 8:44 PM CDT | Areal Flood Advisory | TSA | Haskell, Latimer, LeFlore, Pushmataha | 5 hr |
| Oct 13, 9:08 PM CDT | Special Weather Statement | TSA | Latimer | 52 min |
| Oct 13, 9:39 PM CDT | Areal Flood Advisory | TSA | Haskell, Latimer, LeFlore, Muskogee, Pittsburg, Sequoyah | 4 hr |
| Oct 13, 11:35 PM CDT | Areal Flood Advisory | TSA | Carroll, Madison, Washington | 3 hr |
Nearby
Areal Flood Advisories in Arkansas, 2021Areal Flood Advisories in Oklahoma, 2021Every areal flood advisory in 2021
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.