Alert archive / Kansas / Tornado Warnings in 2019

Tornado Warning 13, NWS Topeka, KS

May 21, 2019Marshall County, Nemaha County, Kansas

NWS Topeka, KS issued this tornado warning at May 21, 2019, 7:00 PM CDT for Marshall County, Nemaha County, Kansas. It was in force for 30 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
May 21, 2019, 7:00 PM CDT (00:00 UTC)
Expired
May 21, 2019, 7:30 PM CDT
In force
30 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Marshall County, KS, Nemaha County, KS

The radar

The Topeka radar (KTWX), 99 km from the middle of the area, began a volume at 00:04 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
May 21, 3:56 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Topeka, KS (KFOE), launched 00:00Z, 0.0 hours before the alert went out and 109 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, Topeka, KS at 00:00Z on 2019-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 808 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, Topeka, KS at 00:00Z on 2019-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 square meters per square second.1939587897117Sfc1 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
808 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1090 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
0.8
Supercell composite
5.0

Open this sounding in Storm Lab

The text

As transmitted.

933 
WFUS53 KTOP 220000
TORTOP
KSC117-131-220030-
/O.NEW.KTOP.TO.W.0013.190522T0000Z-190522T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Topeka KS
700 PM CDT Tue May 21 2019

The National Weather Service in Topeka has issued a

* Tornado Warning for...
  Northwestern Nemaha County in northeastern Kansas...
  Northeastern Marshall County in northeastern Kansas...

* Until 730 PM CDT.
    
* At 700 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Axtell, moving northeast at 40 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.

* This dangerous storm will be near...
  Axtell and Baileyville around 705 PM CDT.

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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3979 9615 3985 9633 4000 9629 4000 9596
TIME...MOT...LOC 0000Z 203DEG 37KT 3982 9626 

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

$$

The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 21, 7:05 PM CDTTornado WarningTOPNemaha25 min
May 21, 7:07 PM CDTTornado WarningTOPBrown, Jackson23 min
May 21, 7:31 PM CDTSpecial Weather StatementTOPBrown14 min
May 21, 9:39 PM CDTAreal Flood WarningTOPClay, Dickinson, Geary, Marshall, Ottawa, Pottawatomie and 2 more3 hr
May 22, 3:24 AM CDTFlash Flood WatchTOPAnderson, Brown, Clay, Cloud, Coffey, Dickinson and 17 more5 days
May 22, 12:20 PM CDTRiver Flood WarningTOPGeary28 hr
May 22, 4:34 PM CDTSpecial Weather StatementTOPAnderson26 min
May 22, 5:34 PM CDTSpecial Weather StatementTOPAnderson26 min
May 22, 5:54 PM CDTSpecial Weather StatementTOPAnderson36 min
May 22, 5:58 PM CDTSevere Thunderstorm WarningTOPAnderson, Franklin26 min

Nearby

Tornado Warnings in Kansas, 2019Every tornado warning in 2019Tornadoes in 2019

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.