Alert archive / Kansas / Special Weather Statements in 2021

Special Weather Statement, NWS Goodland, KS

July 10, 2021Decatur County, Norton County, Kansas

NWS Goodland, KS issued this special weather statement at Jul 10, 2021, 2:21 AM CDT for Decatur County, Norton County, Kansas. It was in force for 39 min. 5 reports 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
Jul 10, 2021, 2:21 AM CDT (07:21 UTC)
Expired
Jul 10, 2021, 3:00 AM CDT
In force
39 min
Issued by
NWS Goodland, KS

Counties Decatur County, KS, Norton County, KS

The radar

The Grand Island radar (KUEX), 150 km from the middle of the area, began a volume at 07:21 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
Jul 10, 2:30 AM CDTTSTM WND GST 615 Wsw Norton, KSKS MESONET SITE NRRK1 NEAR NORTON MEASURED A 10-METER WIND GUST OF 61 MPH AT 1:30 AM MDT (0730 UTC) SATURDAY JULY 10.
Jul 10, 2:35 AM CDTTSTM WND GST 611 N Norton, KSCORRECTED WIND GUST MAGNITUDE FROM PREVIOUS REPORT. THE AWOS IN NORTON (KNRN) MEASURED A WIND GUST OF 53 KNOTS (61 MPH) AT 1:35 AM MDT (0735 UTC) ON SATURDAY JULY 10, 2021.
Jul 10, 2:35 AM CDTTSTM WND GST 671 N Norton, KS
Jul 10, 2:41 AM CDTTSTM WND DMGNorton, KSSONIC RESTAURANT DISPLAY SIGN BLOWN OUT AND LAYING ON HWY 36 ACROSS ALL LANES. SIGN WIDTH IN ROAD IS APPROXIMATELY 15 FT WIDE BY ROUGHLY 20 FT ACROSS. OTHER SMALLER PARTS SCATTERED ACROSS THE HWY AT LOCATION. NO INJURIES REPORTED AND JUST A TRAFFIC HAZARD AT T
Jul 10, 2:49 AM CDTTSTM WND DMGNorton, KSSEVERAL TREE LIMBS DOWN. MAINLY 8 TO 10 FT IN LENGTH AND .75 TO 1.00 IN IN DIAMETER SNAPPED FROM TREE. MIDDLE OF WEST 100 BLOCK OF MAIN STREET IN NORTON. NO INJURIES AT THIS LOCATION.

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

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 7.4 hours before the alert went out and 175 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, N. Platte/Lee Bi, NE at 00:00Z on 2021-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2799 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, N. Platte/Lee Bi, NE at 00:00Z on 2021-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.19395878Sfc1 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
2799 J/kg
Mixed-layer CIN
-162 J/kg
Mixed-layer LCL
1859 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.9

Open this sounding in Storm Lab

The text

As transmitted.

338 
WWUS83 KGLD 100721
SPSGLD

Special Weather Statement
National Weather Service Goodland KS
221 AM CDT Sat Jul 10 2021
 
KSZ003-004-015-016-100800-
Norton KS-Sheridan KS-Decatur KS-Graham KS-
221 AM CDT Sat Jul 10 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTON...NORTHEASTERN SHERIDAN...
EASTERN DECATUR AND NORTHERN GRAHAM COUNTIES UNTIL 300 AM CDT...

At 221 AM CDT, Doppler radar was tracking a strong thunderstorm 10
miles south of Wilsonville, or 11 miles northwest of Norton, moving
southeast at 25 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Norton, Oberlin, Almena, Lenora, Morland, Norcatur and Jennings. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3932 10020 3981 10055 4000 10023 4000 9963
      3957 9963 3957 9960 3948 9960
TIME...MOT...LOC 0721Z 328DEG 22KT 3997 10003 

$$

JN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 7:55 PM CDTSpecial Weather StatementGLDRawlins20 min
Jul 9, 9:38 PM CDTSpecial Weather StatementGLDSherman22 min
Jul 9, 10:25 PM CDTSpecial Weather StatementGLDThomas35 min
Jul 9, 10:35 PM CDTSevere Thunderstorm WarningGLDSherman, Thomas40 min
Jul 9, 10:39 PM CDTSevere Thunderstorm WarningGLDLogan, Wallace, Wichita36 min
Jul 9, 11:10 PM CDTSevere Thunderstorm WarningGLDGreeley, Wichita50 min
Jul 9, 11:23 PM CDTSpecial Weather StatementGLDGraham37 min
Jul 9, 11:25 PM CDTSpecial Weather StatementGLDSherman, Thomas35 min
Jul 9, 11:56 PM CDTSpecial Weather StatementGLDWichita34 min
Jul 10, 12:10 AM CDTSpecial Weather StatementGLDGove, Logan35 min
Jul 10, 12:33 AM CDTSpecial Weather StatementGLDGove, Greeley, Logan, Wallace, Wichita42 min
Jul 10, 1:23 AM CDTSpecial Weather StatementGLDCheyenne37 min
Jul 10, 1:43 AM CDTSpecial Weather StatementGLDDecatur47 min
Jul 10, 2:02 AM CDTSpecial Weather StatementGLDGreeley, Wichita28 min
Jul 10, 2:15 AM CDTSpecial Weather StatementGLDSheridan, Sherman, Thomas45 min
Jul 10, 2:35 AM CDTSevere Thunderstorm WarningGLDNorton25 min
Jul 10, 2:47 AM CDTSpecial Weather StatementGLDGove, Logan, Wallace43 min
Jul 10, 2:59 AM CDTSpecial Weather StatementGLDGraham, Norton46 min
Jul 10, 3:07 AM CDTSevere Thunderstorm WarningGLDGove, Logan, Wallace, Wichita53 min
Jul 10, 3:12 AM CDTSevere Thunderstorm WarningGLDGove, Graham, Norton, Sheridan33 min
Jul 9, 8:01 PM CDTSpecial Weather StatementGLDKit Carson14 min
Jul 9, 8:17 PM CDTSpecial Weather StatementGLDKit Carson28 min
Jul 9, 8:46 PM CDTSpecial Weather StatementGLDKit Carson14 min
Jul 9, 8:50 PM CDTSpecial Weather StatementGLDCheyenne25 min
Jul 9, 8:56 PM CDTSpecial Weather StatementGLDKit Carson19 min
Jul 9, 9:03 PM CDTSpecial Weather StatementGLDKit Carson27 min
Jul 9, 9:23 PM CDTSpecial Weather StatementGLDKit Carson37 min
Jul 9, 9:51 PM CDTSpecial Weather StatementGLDCheyenne24 min
Jul 9, 9:56 PM CDTTornado WarningGLDKit Carson21 min
Jul 9, 10:01 PM CDTSevere Thunderstorm WarningGLDCheyenne44 min

Nearby

Special Weather Statements in Kansas, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.