Alert archive / Kansas / Flash Flood Watches in 2008

Flash Flood Watch 6, NWS Goodland, KS

July 17, 20086 counties in Kansas; Hitchcock County, Red Willow County, Nebraska

NWS Goodland, KS issued this flash flood watch at Jul 17, 2008, 2:41 PM CDT for 6 counties in Kansas; Hitchcock County, Red Willow County, Nebraska. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Jul 17, 2008, 2:41 PM CDT (19:41 UTC)
Expired: Jul 17, 2008, 10:44 PM CDT
In force: 8 hr
Issued by: NWS Goodland, KS
Flood severity: None

Counties Decatur County, KS, Graham County, KS, Norton County, KS, Rawlins County, KS, Sheridan County, KS, Thomas County, KS, Hitchcock County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 107 km from the middle of the area, began a volume at 19:43 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 12:00Z, 7.7 hours before the alert went out and 157 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: 2481 J/kg
Mixed-layer CIN: -134 J/kg
Mixed-layer LCL: 812 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: -10 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch 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 flash flood watch went out at Jul 17, 1:04 PM CDT, 1 hour 37 minutes earlier.

Area forecast discussion, Jul 17, 1:04 PM CDT, 1 hour 37 minutes before

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Hazardous weather outlook, Jul 17, 11:20 AM CDT, 3 hours 21 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GOODLAND KS
1020 AM MDT THU JUL 17 2008

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-181330-
YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON-
SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA-
DUNDY-HITCHCOCK-RED WILLOW-
1020 AM MDT THU JUL 17 2008 /1120 AM CDT THU JUL 17 2008/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWEST
NEBRASKA...NORTHWEST KANSAS AND EAST CENTRAL COLORADO.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND EVENING ACROSS
PORTIONS OF EASTERN COLORADO AND SOUTHWESTERN NEBRASKA. THESE STORMS
WILL BE SLOW MOVING AND WILL BE CAPABLE OF PRODUCING VERY HEAVY RAIN. IN
ADDITION TO HEAVY RAINFALL...THESE STORMS WILL ALSO BE CAPABLE OF
PRODUCING LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THUNDERSTORMS WILL CONTINUE THROUGH FRIDAY NIGHT. AT THIS TIME THE
MAIN THREATS APPEAR TO BE PERIODS OF HEAVY RAIN AND CLOUD TO GROUND
LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND TONIGHT.

KJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 5:06 PM CDT	Severe Thunderstorm Warning	GLD	Logan, Wallace	33 min
Jul 17, 5:37 PM CDT	Severe Thunderstorm Warning	GLD	Rawlins	38 min
Jul 17, 5:45 PM CDT	Severe Thunderstorm Warning	GLD	Wichita	14 min
Jul 17, 5:47 PM CDT	Severe Thunderstorm Warning	GLD	Rawlins	24 min
Jul 17, 6:16 PM CDT	Severe Thunderstorm Warning	GLD	Cheyenne	35 min
Jul 17, 6:20 PM CDT	Severe Thunderstorm Warning	GLD	Rawlins, Thomas	20 min
Jul 17, 4:41 PM CDT	Severe Thunderstorm Warning	GLD	Yuma	64 min
Jul 17, 5:27 PM CDT	Severe Thunderstorm Warning	GLD	Yuma	63 min
Jul 17, 4:18 PM CDT	Severe Thunderstorm Warning	GLD	Hitchcock	57 min

Nearby

Flash Flood Watches in Kansas, 2008 Flash Flood Watches in Nebraska, 2008 Every flash flood watch in 2008

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.