Alert archive / Missouri / Tornado Warnings in 2018

Tornado Warning 2, NWS Kansas City, MO

May 2, 2018Atchison County, Holt County, Missouri

NWS Kansas City, MO issued this tornado warning at May 2, 2018, 7:03 PM CDT for Atchison County, Holt County, Missouri. It was in force for 16 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 2, 2018, 7:03 PM CDT (00:03 UTC)
Expired
May 2, 2018, 7:19 PM CDT
In force
16 min
Issued by
NWS Kansas City, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Atchison County, MO, Holt County, MO

The radar

The Omaha radar (KOAX), 140 km from the middle of the area, began a volume at 00:07 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 2, 5:27 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.1 hours before the alert went out and 140 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, Omaha, NE at 00:00Z on 2018-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Omaha, NE at 00:00Z on 2018-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 188 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
711 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
188 m²/s²
0-3 km storm-relative helicity
260 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

Open this sounding in Storm Lab

The text

As transmitted.

062 
WFUS53 KEAX 030003
TOREAX
MOC005-087-030030-
/O.NEW.KEAX.TO.W.0002.180503T0003Z-180503T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Kansas City/Pleasant Hill MO
703 PM CDT WED MAY 2 2018

The National Weather Service in Pleasant Hill has issued a

* Tornado Warning for...
  Southeastern Atchison County in northwestern Missouri...
  Northwestern Holt County in northwestern Missouri...

* Until 730 PM CDT.
    
* At 703 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Shubert, or 9 miles north of Falls City, moving
  northeast at 35 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 impacted include...
  Fairfax, Craig, Corning and Indian Cave State Park. 

This includes Interstate 29 between mile markers 92 and 103.
 
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 4045 9530 4022 9517 4017 9547 4019 9548
      4022 9547 4025 9549 4025 9552 4026 9555
      4027 9556 4028 9556
TIME...MOT...LOC 0003Z 238DEG 32KT 4020 9557 

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

$$

CDB
1 follow-up statement
943 
WWUS53 KEAX 030019
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
719 PM CDT WED MAY 2 2018

MOC005-087-030028-
/O.CAN.KEAX.TO.W.0002.000000T0000Z-180503T0030Z/
Atchison MO-Holt MO-
719 PM CDT WED MAY 2 2018

...THE TORNADO WARNING FOR SOUTHEASTERN ATCHISON AND NORTHWESTERN
HOLT COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However gusty winds are
still possible with this thunderstorm.

A Tornado Watch remains in effect until 100 AM CDT for northwestern
Missouri.

Remember, a Severe Thunderstorm Warning still remains in effect for 
this area.

LAT...LON 4045 9530 4022 9517 4017 9547 4019 9548
      4022 9547 4025 9549 4025 9552 4026 9555
      4027 9556 4028 9556
TIME...MOT...LOC 0017Z 238DEG 32KT 4027 9541 

$$

CDB

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 2, 7:27 PM CDTSevere Thunderstorm WarningEAXAndrew, Atchison, Buchanan, Holt, Nodaway, Platte48 min
May 2, 7:30 PM CDTTornado WarningEAXAtchison, Nodaway15 min
May 2, 8:04 PM CDTSevere Thunderstorm WarningEAXAndrew, Buchanan, Clinton, DeKalb, Gentry, Nodaway and 2 more41 min
May 2, 9:06 PM CDTTornado WarningEAXBates, Cass24 min
May 2, 9:09 PM CDTTornado WarningEAXCass, Jackson36 min
May 2, 9:22 PM CDTSevere Thunderstorm WarningEAXBates, Cass, Henry, Jackson, Johnson, Lafayette38 min
May 2, 9:28 PM CDTTornado WarningEAXJackson, Lafayette32 min
May 2, 9:44 PM CDTTornado WarningEAXCarroll, Cass, Jackson, Johnson, Lafayette, Ray46 min
May 2, 9:49 PM CDTTornado WarningEAXBates, Cass, Henry, Johnson41 min
May 2, 9:57 PM CDTSevere Thunderstorm WarningEAXBates, Carroll, Cass, Henry, Johnson, Lafayette and 1 more63 min
May 2, 10:22 PM CDTTornado WarningEAXJohnson, Lafayette, Pettis, Saline23 min
May 2, 10:39 PM CDTSevere Thunderstorm WarningEAXCarroll, Chariton, Henry, Johnson, Pettis, Saline66 min
May 2, 10:47 PM CDTSevere Thunderstorm WarningEAXMacon, Randolph28 min
May 2, 11:07 PM CDTSevere Thunderstorm WarningEAXAdair, Putnam, Schuyler, Sullivan28 min
May 3, 4:09 PM CDTSpecial Weather StatementEAXAtchison21 min

Nearby

Tornado Warnings in Missouri, 2018Every tornado warning in 2018Tornadoes in 2018

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.