Alert archive / Nebraska / Flash Flood Watches in 2017
Flash Flood Watch 1, NWS Hastings, NE
NWS Hastings, NE issued this flash flood watch at May 17, 2017, 3:05 PM CDT for 15 counties in Nebraska; 6 counties in Kansas. It took effect at May 18, 2017, 6:00 PM CDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- May 17, 2017, 3:05 PM CDT (20:05 UTC)
- In effect from
- May 18, 2017, 6:00 PM CDT
- Expired
- May 19, 2017, 4:02 AM CDT
- In force
- 10 hr
- Issued by
- NWS Hastings, NE
- Flood severity
- None
All 21 counties
Jewell County, KS, Mitchell County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Smith County, KS, Adams County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Kearney County, NE, Merrick County, NE, Nuckolls County, NE, Phelps County, NE, Polk County, NE, Thayer County, NE, Webster County, NE, York County, NE
The radar
The Grand Island radar (KUEX), 4 km from the middle of the area, began a volume at 20:05 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
Omaha, NE (KOAX), launched 12:00Z, 8.1 hours before the alert went out and 210 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
- 121 J/kg
- Mixed-layer CIN
- -156 J/kg
- Mixed-layer LCL
- 1106 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Hastings, NE wrote its last area forecast discussion before this flash flood watch went out at May 17, 12:46 PM CDT, 2 hours 19 minutes earlier.
Area forecast discussion, May 17, 12:46 PM CDT, 2 hours 19 minutes before
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</html>Hazardous weather outlook, May 17, 4:50 AM CDT, 10 hours 15 minutes before
Hazardous Weather Outlook...CORRECTED National Weather Service Hastings NE 450 AM CDT Wed May 17 2017 KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087- 181200- Phillips-Smith-Jewell-Rooks-Osborne-Mitchell-Valley-Greeley-Nance- Sherman-Howard-Merrick-Polk-Dawson-Buffalo-Hall-Hamilton-York- Gosper-Phelps-Kearney-Adams-Clay-Fillmore-Furnas-Harlan-Franklin- Webster-Nuckolls-Thayer- 450 AM CDT Wed May 17 2017 This Hazardous Weather Outlook is for south central Nebraska and portions of north central Kansas. .DAY ONE...Today and Tonight. This morning, thunderstorms are expected to expand in coverage across the outlook area. There will be the potential for some thunderstorms to be strong, with small hail and gusty winds the primary hazards. This afternoon, thunderstorm chances continue, and there is a chance that a few may become severe. The best chance for severe thunderstorms looks to be east of Highway 281. The primary hazards would be hail near the size of quarters and wind gusts near 60 MPH, though an isolated tornado is not completely out of the question. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Thunderstorms are possible Thursday afternoon and overnight for most of the outlook area. Along and south of Interstate 80, some of the thunderstorms could be severe with large hail and damaging winds. There could be a few thunderstorms Friday afternoon and evening and again Monday afternoon and evening. Severe weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon for areas east of Highway 281. && More information may be obtained at the following web page: https://www.weather.gov/hastings
In the hours before
Special weather statement, May 17, 12:02 PM CDT, 3 hours 3 minutes before
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</html>Local storm report, May 17, 12:11 PM CDT, 2 hours 54 minutes before
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</html>Local storm report, May 17, 12:31 PM CDT, 2 hours 34 minutes before
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</html>Local storm report, May 17, 1:15 PM CDT, 1 hour 50 minutes before
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</html>Local storm report, May 17, 1:28 PM CDT, 1 hour 37 minutes before
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</html>Local storm report, May 17, 2:06 PM CDT, 59 minutes before
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</html>The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 7:03 PM CDT | Severe Thunderstorm Warning | GID | Buffalo, Kearney, Phelps | 42 min |
| May 16, 7:04 PM CDT | Special Weather Statement | GID | Nuckolls | 26 min |
| May 16, 7:15 PM CDT | Special Weather Statement | GID | Clay, Fillmore, Thayer | 30 min |
| May 16, 7:32 PM CDT | Severe Thunderstorm Warning | GID | Hall, Hamilton, Howard, Merrick | 29 min |
| May 16, 7:45 PM CDT | Special Weather Statement | GID | Howard | 45 min |
| May 16, 7:46 PM CDT | Severe Thunderstorm Warning | GID | Thayer | 15 min |
| May 16, 11:22 PM CDT | Severe Thunderstorm Warning | GID | Furnas, Gosper, Harlan, Phelps | 38 min |
| May 16, 11:58 PM CDT | Severe Thunderstorm Warning | GID | Franklin, Harlan, Kearney, Phelps | 47 min |
| May 17, 12:31 AM CDT | Severe Thunderstorm Warning | GID | Adams, Franklin, Kearney, Webster | 44 min |
| May 17, 1:02 AM CDT | Special Weather Statement | GID | Clay, Nuckolls | 43 min |
| May 17, 1:25 AM CDT | Special Weather Statement | GID | Hamilton, York | 50 min |
| May 17, 1:34 AM CDT | Special Weather Statement | GID | Fillmore, York | 41 min |
| May 17, 2:00 AM CDT | Special Weather Statement | GID | Polk | 45 min |
| May 17, 11:27 AM CDT | Areal Flood Warning | GID | Franklin, Harlan, Webster | 12 hr |
| May 17, 11:58 AM CDT | Special Weather Statement | GID | Thayer | 47 min |
| May 17, 12:02 PM CDT | Special Weather Statement | GID | Thayer | 43 min |
| May 16, 8:39 PM CDT | Special Weather Statement | GID | Osborne | 51 min |
| May 16, 8:47 PM CDT | Special Weather Statement | GID | Mitchell | 28 min |
| May 16, 9:34 PM CDT | Special Weather Statement | GID | Mitchell | 41 min |
| May 16, 10:16 PM CDT | Special Weather Statement | GID | Mitchell | 14 min |
| May 17, 6:49 AM CDT | Special Weather Statement | GID | Mitchell | 41 min |
| May 17, 6:58 AM CDT | Severe Thunderstorm Warning | GID | Jewell, Mitchell | 21 min |
| May 17, 11:25 AM CDT | Special Weather Statement | GID | Mitchell | 50 min |
Nearby
Flash Flood Watches in Nebraska, 2017Flash Flood Watches in Kansas, 2017Every flash flood watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.