Alert archive / Oklahoma / Tornado Warnings in 2020

Tornado Warning 14, NWS Tulsa, OK

January 10, 2020Choctaw County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Jan 10, 2020, 7:08 PM CST for Choctaw County, Oklahoma. It was in force for 10 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jan 10, 2020, 7:08 PM CST (01:08 UTC)
Expired
Jan 10, 2020, 7:18 PM CST
In force
10 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Choctaw County, OK

The radar

The Western Arkansas radar (KSRX), 173 km from the middle of the area, began a volume at 01:06 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.

IssuedProductOfficeLasted
Jan 10, 10:42 AM CSTTornado WatchSPC10 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 1.1 hours before the alert went out and 213 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.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2020-01-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 703 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2020-01-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 379 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
703 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
813 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
379 m²/s²
0-3 km storm-relative helicity
620 m²/s²
Significant tornado parameter
1.6
Supercell composite
6.1

Open this sounding in Storm Lab

The text

As transmitted.

730 
WFUS54 KTSA 110108
TORTSA
OKC023-110145-
/O.NEW.KTSA.TO.W.0014.200111T0108Z-200111T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
708 PM CST Fri Jan 10 2020

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Southeastern Choctaw County in southeastern Oklahoma...

* Until 745 PM CST.
    
* At 708 PM CST, a severe thunderstorm capable of producing a tornado
  was located 6 miles northwest of Manchester, moving northeast at 60
  mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations in or near the path include...
  Swink...                          

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3388 9531 3407 9516 3394 9516 3396 9523
      3395 9523 3394 9525 3390 9525 3389 9526
      3389 9527 3391 9527 3390 9528 3388 9528
      3387 9529
TIME...MOT...LOC 0108Z 215DEG 52KT 3390 9522 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$
1 follow-up statement
559 
WWUS54 KTSA 110118
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
718 PM CST Fri Jan 10 2020

OKC023-110128-
/O.CAN.KTSA.TO.W.0014.000000T0000Z-200111T0145Z/
Choctaw OK-
718 PM CST Fri Jan 10 2020

...THE TORNADO WARNING FOR SOUTHEASTERN CHOCTAW COUNTY IS
CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.

A Tornado Watch remains in effect until 900 PM CST for southeastern
Oklahoma.

LAT...LON 3388 9531 3407 9516 3394 9516 3396 9523
      3395 9523 3394 9525 3390 9525 3389 9526
      3389 9527 3391 9527 3390 9528 3388 9528
      3387 9529
TIME...MOT...LOC 0117Z 215DEG 52KT 3403 9511 

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 10, 6:04 PM CSTAreal Flood AdvisoryTSAChoctaw, Haskell, Latimer, LeFlore, Pushmataha, Sequoyah4 hr
Jan 10, 6:16 PM CSTFlash Flood WarningTSAAdair, Cherokee, Delaware, Sequoyah6 hr
Jan 10, 6:37 PM CSTFlash Flood WarningTSAHaskell, Latimer, LeFlore, Pushmataha, Sequoyah6 hr
Jan 10, 6:46 PM CSTSpecial Weather StatementTSALeFlore44 min
Jan 10, 7:01 PM CSTSevere Thunderstorm WarningTSALeFlore44 min
Jan 10, 7:05 PM CSTAreal Flood AdvisoryTSACherokee, Craig, Creek, Delaware, Mayes, Muskogee and 5 more6 hr
Jan 10, 8:22 PM CSTWinter Storm WarningTSAPawnee, Washington16 hr
Jan 10, 10:33 PM CSTAreal Flood WarningTSACherokee, Haskell, Latimer, McIntosh, Muskogee, Pittsburg and 1 more9 hr
Jan 11, 12:06 AM CSTAreal Flood WarningTSAAdair, Cherokee, Delaware, Sequoyah6 hr
Jan 11, 12:25 AM CSTAreal Flood WarningTSAHaskell, Latimer, LeFlore, Pushmataha, Sequoyah6 hr
Jan 11, 8:24 AM CSTRiver Flood WarningTSASequoyah6 hr
Jan 11, 8:44 AM CSTRiver Flood WarningTSACreek11 hr
Jan 11, 9:11 AM CSTRiver Flood WarningTSALeFlore11 hr

Nearby

Tornado Warnings in Oklahoma, 2020Every tornado warning in 2020Tornadoes in 2020

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.