Alert archive / Illinois / Special Weather Statements in 2021
Special Weather Statement, NWS Paducah, KY
NWS Paducah, KY issued this special weather statement at Dec 18, 2021, 1:08 AM CST for Johnson County, Union County, Illinois. It was in force for 37 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
- Dec 18, 2021, 1:08 AM CST (07:08 UTC)
- Expired
- Dec 18, 2021, 1:45 AM CST
- In force
- 37 min
- Issued by
- NWS Paducah, KY
- Hail
- 0.00 in
- Wind
- 30
Counties Johnson County, IL, Union County, IL
The radar
The Paducah radar (KPAH), 50 km from the middle of the area, began a volume at 07:08 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 nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 7.1 hours before the alert went out and 267 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.
- Mixed-layer CAPE
- 201 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 475 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 180 m²/s²
- 0-3 km storm-relative helicity
- 184 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
015
WWUS83 KPAH 180708
SPSPAH
Special Weather Statement
National Weather Service Paducah KY
108 AM CST Sat Dec 18 2021
ILZ084-085-088-089-092>094-180745-
Massac IL-Alexander IL-Jackson IL-Union IL-Johnson IL-Williamson IL-
Pulaski IL-
108 AM CST Sat Dec 18 2021
...Strong thunderstorms will impact portions of Union, northern
Pulaski, northwestern Massac, Johnson, southern Williamson,
southeastern Jackson and north central Alexander Counties through 145
AM CST...
At 107 AM CST, Doppler radar was tracking strong thunderstorms along
a line extending from near Cobden to near Jonesboro to 6 miles west
of Tamms. Movement was east at 40 mph.
HAZARD...Winds 30 to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Strong thunderstorms will be near...
Jonesboro and Cobden around 110 AM CST.
Anna and Dongola around 115 AM CST.
Other locations in the path of these storms include Goreville,
Vienna, Karnak, Lake Of Egypt Area and Creal Springs.
This includes the following highways...
Interstate 24 in Illinois between Mile Markers 1 and 19.
Interstate 57 in Illinois between Mile Markers 16 and 48.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3722 8941 3740 8932 3762 8934 3770 8878
3748 8878 3726 8889
TIME...MOT...LOC 0707Z 258DEG 35KT 3756 8929 3740 8929 3724 8938
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH
$$
08The office that day
Everything else NWS Paducah, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 18, 1:26 AM CST | Special Weather Statement | PAH | Johnson, Pope | 49 min |
| Dec 18, 9:42 AM CST | River Flood Warning | PAH | Wayne | 25 hr |
| Dec 18, 11:48 AM CST | Areal Flood Warning | PAH | Carter, Ripley | 6 hr |
Nearby
Special Weather Statements in Illinois, 2021Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.