Alert archive / Kansas / Areal Flood Warnings in 2021

Areal Flood Warning 10, NWS Goodland, KS

May 25, 2021Decatur County, Rawlins County, Kansas

NWS Goodland, KS issued this areal flood warning at May 25, 2021, 5:54 AM CDT for Decatur County, Rawlins County, Kansas. It was in force for 93 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 25, 2021, 5:54 AM CDT (10:54 UTC)
Expired: May 25, 2021, 7:27 AM CDT
In force: 93 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Flood severity: None

Counties Decatur County, KS, Rawlins County, KS

The radar

The Goodland radar (KGLD), 92 km from the middle of the area, began a volume at 10:58 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 10.9 hours before the alert went out and 150 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: 925 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 863 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 92 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Goodland, KS wrote its last area forecast discussion before this areal flood warning went out at May 25, 4:40 AM CDT, 1 hour 14 minutes earlier.

Area forecast discussion, May 25, 4:40 AM CDT, 1 hour 14 minutes before

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Hazardous weather outlook, May 25, 5:00 AM CDT, 54 minutes before

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In the hours before

Special weather statement, May 25, 2:41 AM CDT, 3 hours 13 minutes before

Special Weather Statement
National Weather Service Goodland KS
141 AM MDT Tue May 25 2021

COZ090-091-KSZ013-250815-
Kit Carson County CO-Yuma County CO-Sherman KS-
141 AM MDT Tue May 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN YUMA...NORTHEASTERN
KIT CARSON AND NORTHWESTERN SHERMAN COUNTIES UNTIL 215 AM MDT...

At 140 AM MDT, Doppler radar was tracking a strong thunderstorm 8
miles northeast of Bethune, or 8 miles northwest of Burlington,
moving northeast at 15 mph.

Nickel size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Burlington, Bonny Reservoir and Hale.

This includes Highway 385 between mile markers 188 and 208, and near
mile marker 211.

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 3966 10208 3959 10205 3957 10205 3957 10204
      3936 10194 3929 10236 3947 10253
TIME...MOT...LOC 0740Z 240DEG 15KT 3941 10236

JN

Special weather statement, May 25, 3:06 AM CDT, 2 hours 48 minutes before

Special Weather Statement
National Weather Service Goodland KS
206 AM MDT Tue May 25 2021

COZ090-091-KSZ001-013-250900-
Kit Carson County CO-Yuma County CO-Sherman KS-Cheyenne KS-
206 AM MDT Tue May 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN YUMA COUNTY IN
NORTHEASTERN COLORADO...NORTHEASTERN KIT CARSON COUNTY IN EAST
CENTRAL COLORADO...SOUTHWESTERN CHEYENNE AND NORTHWESTERN SHERMAN
COUNTIES IN NORTHWESTERN KANSAS UNTIL 300 AM MDT/400 AM CDT/...

At 206 AM MDT/306 AM CDT/, Doppler radar was tracking a strong
thunderstorm 10 miles northwest of Kanorado, moving northeast at 20
mph.

Nickel size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Bonny Reservoir and Hale.

This includes Highway 385 between mile markers 196 and 207, and near
mile marker 211.

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 10218 3952 10235 3979 10189 3954 10167
      3939 10185
TIME...MOT...LOC 0806Z 236DEG 16KT 3945 10216

JN

Special weather statement, May 25, 3:15 AM CDT, 2 hours 39 minutes before

Special Weather Statement
National Weather Service Goodland KS
315 AM CDT Tue May 25 2021

KSZ002-003-250900-
Rawlins KS-Decatur KS-
315 AM CDT Tue May 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL RAWLINS AND NORTHWESTERN
DECATUR COUNTIES UNTIL 400 AM CDT...

At 315 AM CDT, Doppler radar was tracking a strong thunderstorm 7
miles south of Atwood, moving northeast at 25 mph.

Nickel size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Oberlin, Atwood, Herndon, Ludell, Blakeman and Traer.

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 3957 10117 3975 10135 4000 10073 3987 10042
TIME...MOT...LOC 0815Z 230DEG 20KT 3971 10108

JN

Local storm report, May 25, 3:31 AM CDT, 2 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
231 AM MDT TUE MAY 25 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0226 AM     DENSE FOG        2 E MCCOOK              40.21N 100.59W
05/25/2021                   RED WILLOW         NE   ASOS

            1/4SM.

&&

JN

Special weather statement, May 25, 3:38 AM CDT, 2 hours 16 minutes before

Special Weather Statement
National Weather Service Goodland KS
238 AM MDT Tue May 25 2021

COZ090-091-KSZ001>003-013-014-NEZ079>081-251000-
Kit Carson County CO-Yuma County CO-Rawlins KS-Decatur KS-Thomas KS-
Sherman KS-Cheyenne KS-Red Willow NE-Hitchcock NE-Dundy NE-
238 AM MDT Tue May 25 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN YUMA COUNTY IN
NORTHEASTERN COLORADO...NORTHEASTERN KIT CARSON COUNTY IN EAST
CENTRAL COLORADO...CHEYENNE...NORTHWESTERN THOMAS...RAWLINS...
NORTHERN DECATUR AND NORTHERN SHERMAN COUNTIES IN NORTHWESTERN
KANSAS...SOUTHWESTERN RED WILLOW...SOUTHERN HITCHCOCK AND
SOUTHEASTERN DUNDY COUNTIES IN SOUTHWESTERN NEBRASKA UNTIL 400 AM
MDT/500 AM CDT/...

At 238 AM MDT/338 AM CDT/, Doppler radar was tracking strong
thunderstorms along a line extending from 6 miles northwest of
Oberlin to 7 miles northwest of Kanorado. Movement was east at 10
mph.

Nickel size hail and winds in excess of 30 mph will be possible with
these storms.

Locations impacted include...
McCook, Goodland, Oberlin, St. Francis, Atwood, Kanorado and Ruleton.

This includes the following highways...
 Interstate 70 in Kansas between mile markers 0 and 11.
 Interstate 70 in Colorado between mile markers 444 and 450.
 Highway 385 between mile markers 205 and 224.

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 3984 10018 3981 10018 3924 10214 3979 10236
      4025 10061
TIME...MOT...LOC 0838Z 266DEG 7KT 3990 10058 3939 10215

JN

Special weather statement, May 25, 4:51 AM CDT, 1 hour 3 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 7:02 PM CDT	Tornado Warning	GLD	Gove	31 min
May 24, 7:14 PM CDT	Special Weather Statement	GLD	Graham	31 min
May 24, 7:20 PM CDT	Tornado Warning	GLD	Gove	25 min
May 24, 7:30 PM CDT	Special Weather Statement	GLD	Norton	15 min
May 24, 10:57 PM CDT	Dense Fog Advisory	GLD	Cheyenne, Decatur, Gove, Graham, Greeley, Logan and 7 more	7 hr
May 25, 3:06 AM CDT	Special Weather Statement	GLD	Sherman	54 min
May 25, 3:15 AM CDT	Special Weather Statement	GLD	Rawlins	45 min
May 25, 3:38 AM CDT	Special Weather Statement	GLD	Cheyenne, Decatur, Rawlins	82 min
May 25, 4:25 AM CDT	Flash Flood Warning	GLD	Decatur, Rawlins	86 min
May 25, 4:51 AM CDT	Special Weather Statement	GLD	Decatur, Norton, Rawlins	54 min
May 25, 6:04 AM CDT	Special Weather Statement	GLD	Norton	56 min
May 25, 6:34 AM CDT	Special Weather Statement	GLD	Graham	26 min
May 25, 2:11 AM CDT	Special Weather Statement	GLD	Kit Carson	34 min
May 25, 2:41 AM CDT	Special Weather Statement	GLD	Kit Carson	34 min
May 25, 2:45 AM CDT	Flash Flood Warning	GLD	Kit Carson	92 min
May 25, 4:20 AM CDT	Areal Flood Warning	GLD	Kit Carson	3 hr

Nearby

Areal Flood Warnings in Kansas, 2021 Every areal flood warning 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.