Alert archive / Oklahoma / Tornado Warnings in 2021

Tornado Warning 2, NWS Tulsa, OK

January 30, 2021Craig County, Nowata County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Jan 30, 2021, 2:29 PM CST for Craig County, Nowata County, Oklahoma. It was in force for 31 min. 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
Jan 30, 2021, 2:29 PM CST (20:29 UTC)
Expired
Jan 30, 2021, 3:00 PM CST
In force
31 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Craig County, OK, Nowata County, OK

The radar

The Tulsa radar (KINX), 94 km from the middle of the area, began a volume at 20:29 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

TimeReportWhereRemark
Jan 30, 3:08 PM CSTHAIL 0.75Hollow, OK

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 8.5 hours before the alert went out and 121 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, Springfield, MO at 12:00Z on 2021-01-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Springfield, MO at 12:00Z on 2021-01-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 481 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
827 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
481 m²/s²
0-3 km storm-relative helicity
593 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

094 
WFUS54 KTSA 302029
TORTSA
OKC035-105-302100-
/O.NEW.KTSA.TO.W.0002.210130T2029Z-210130T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
229 PM CST Sat Jan 30 2021

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Northern Craig County in northeastern Oklahoma...
  Northeastern Nowata County in northeastern Oklahoma...

* Until 300 PM CST.
    
* At 229 PM CST, a severe thunderstorm capable of producing a tornado
  was located 7 miles east of South Coffeyville, moving east at 50
  mph.

  HAZARD...Tornado.

  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...
  Hollow...                         

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.

&&

LAT...LON 3698 9503 3697 9504 3696 9503 3690 9500
      3687 9552 3700 9557 3700 9504
TIME...MOT...LOC 2029Z 253DEG 41KT 3695 9549 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$
1 follow-up statement
197 
WWUS54 KTSA 302048
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
248 PM CST Sat Jan 30 2021

OKC035-105-302100-
/O.CON.KTSA.TO.W.0002.000000T0000Z-210130T2100Z/
Craig OK-Nowata OK-
248 PM CST Sat Jan 30 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM CST FOR NORTHERN
CRAIG AND EASTERN NOWATA COUNTIES...
    
At 248 PM CST, a severe thunderstorm capable of producing a tornado
was located 8 miles southeast of Edna, moving east at 45 mph.

HAZARD...Tornado.

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...
Hollow...                         

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.

&&

LAT...LON 3698 9503 3697 9504 3696 9503 3690 9500
      3687 9552 3700 9540 3700 9504
TIME...MOT...LOC 2048Z 256DEG 38KT 3696 9526 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 30, 3:16 AM CSTWind AdvisoryTSAChoctaw, Haskell, Latimer, McIntosh, Muskogee, Okfuskee and 3 more14 hr
Jan 30, 1:45 PM CSTTornado WarningTSANowata45 min
Jan 30, 2:51 PM CSTTornado WarningTSACraig, Nowata, Ottawa39 min
Jan 30, 3:22 PM CSTTornado WarningTSACraig, Ottawa38 min
Jan 30, 3:24 PM CSTTornado WarningTSACraig, Delaware, Ottawa51 min

Nearby

Tornado Warnings in Oklahoma, 2021Every tornado warning in 2021Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.