Alert archive / Illinois / Tornado Warnings in 2017

Tornado Warning 45, NWS Paducah, KY

May 27, 2017Massac County, Pope County, Illinois

NWS Paducah, KY issued this tornado warning at May 27, 2017, 4:23 PM CDT for Massac County, Pope County, Illinois. It was in force for 16 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: May 27, 2017, 4:23 PM CDT (21:23 UTC)
Expired: May 27, 2017, 4:39 PM CDT
In force: 16 min
Issued by: NWS Paducah, KY
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Massac County, IL, Pope County, IL

The radar

The Paducah radar (KPAH), 26 km from the middle of the area, began a volume at 21:26 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

Time	Report	Where	Remark
May 27, 4:40 PM CDT	TSTM WND DMG	Temple Hill, IL	REPORTS OF TREES SNAPPED OR UPROOTED. FROM SOCIAL MEDIA.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 27, 1:36 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.4 hours before the alert went out and 216 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 825 J/kg
Mixed-layer CIN: -225 J/kg
Mixed-layer LCL: 1026 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 196 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted.

306 
WFUS53 KPAH 272123
TORPAH
ILC127-151-272200-
/O.NEW.KPAH.TO.W.0045.170527T2123Z-170527T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Paducah KY
423 PM CDT SAT MAY 27 2017

The National Weather Service in Paducah has issued a

* Tornado Warning for...
  Central Massac County in southern Illinois...
  Southern Pope County in southern Illinois...

* Until 500 PM CDT
    
* At 423 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over New Columbia, or 9 miles north of Metropolis,
  moving southeast at 55 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. 

* This tornadic thunderstorm will remain over mainly rural areas of
  central Massac and southern Pope Counties.

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 3723 8878 3734 8877 3734 8849 3728 8851
      3726 8851 3722 8847 3721 8845 3710 8845
TIME...MOT...LOC 2123Z 298DEG 49KT 3729 8874 

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

$$

ps

1 follow-up statement

120 
WWUS53 KPAH 272139
SVSPAH

Severe Weather Statement
National Weather Service Paducah KY
439 PM CDT SAT MAY 27 2017

ILC127-151-272149-
/O.CAN.KPAH.TO.W.0045.000000T0000Z-170527T2200Z/
Massac IL-Pope IL-
439 PM CDT SAT MAY 27 2017

...THE TORNADO WARNING FOR CENTRAL MASSAC AND SOUTHERN POPE COUNTIES
IS CANCELLED...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.  However
gusty winds are still possible with this thunderstorm.

A severe thunderstorm watch remains in effect until 900 PM CDT for
southern Illinois...and western Kentucky.

LAT...LON 3723 8878 3734 8877 3734 8849 3728 8851
      3726 8851 3722 8847 3721 8845 3710 8845
TIME...MOT...LOC 2137Z 298DEG 49KT 3718 8849 

$$

ps

The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 2:32 PM CDT	Severe Thunderstorm Warning	PAH	Hamilton	28 min
May 27, 2:59 PM CDT	Severe Thunderstorm Warning	PAH	Jackson	46 min
May 27, 3:01 PM CDT	Severe Thunderstorm Warning	PAH	Hamilton, Wayne, White	18 min
May 27, 3:17 PM CDT	Severe Thunderstorm Warning	PAH	White	28 min
May 27, 3:34 PM CDT	Severe Thunderstorm Warning	PAH	Jackson, Union, Williamson	41 min
May 27, 3:38 PM CDT	Severe Thunderstorm Warning	PAH	Jefferson	37 min
May 27, 4:01 PM CDT	Severe Thunderstorm Warning	PAH	Johnson, Pope, Saline, Union, Williamson	44 min
May 27, 4:05 PM CDT	Severe Thunderstorm Warning	PAH	Wabash	14 min
May 27, 4:14 PM CDT	Severe Thunderstorm Warning	PAH	Massac, Pope	46 min
May 27, 4:36 PM CDT	Severe Thunderstorm Warning	PAH	Pope	39 min
May 27, 5:37 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Jackson, Pulaski, Union	38 min
May 27, 6:10 PM CDT	Severe Thunderstorm Warning	PAH	Hardin, Johnson, Massac, Pope, Pulaski	65 min
May 27, 6:40 PM CDT	Severe Thunderstorm Warning	PAH	Hardin	65 min

Nearby

Tornado Warnings in Illinois, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.