Alert archive / Nebraska / Flash Flood Warnings in 2007

Flash Flood Warning 35, NWS North Platte, NE

June 12, 2007Hayes County, Nebraska

NWS North Platte, NE issued this flash flood warning at Jun 12, 2007, 3:43 PM CDT for Hayes County, Nebraska. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 12, 2007, 3:43 PM CDT (20:43 UTC)
Expired
Jun 12, 2007, 9:45 PM CDT
In force
6 hr
Issued by
NWS North Platte, NE
Area
Whole counties

County Hayes County, NE

The radar

The Goodland radar (KGLD), 140 km from the middle of the area, began a volume at 20:43 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, 8.7 hours before the alert went out and 78 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 12:00Z on 2007-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 337 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 12:00Z on 2007-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939Sfc1 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
337 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
778 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS53 KLBF 122047
FFWLBF
NEC085-130245-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
343 PM CDT TUE JUN 12 2007

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  HAYES COUNTY IN SOUTHWEST NEBRASKA...
  THIS INCLUDES THE CITY OF HAYES CENTER...

* UNTIL 945 PM CDT

* AT 335 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM PERSISTENT SHOWERS AND THUNDERSTORM OVER THE   
  WARNED AREA..

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HAYES      
  CENTER AND HAMLET.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

RECENT RAINFALL WILL CAUSE EXCESSIVE RUNOFF AND FLOODING OF SMALL 
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE 
BANKS OF CREEKS AND STREAMS.

WATER MAY WASH OUT OR FLOW OVER MANY COUNTY ROADS IN HAYES COUNTY.
TRAVEL IS STRONGLY DISCOURAGED ON ANY COUNTY OR SECONDARY ROADS. 
UNPAVED ROADS MAY BECOME WASHED OUT AND IMPASSABLE. 

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

LAT...LON 4035 10133 4034 10078 4069 10078 4069 10133

$$

KAR
1 follow-up statement
000 
WGUS73 KLBF 122346
FFSLBF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
643 PM CDT TUE JUN 12 2007

NEC085-122353-
HAYES NE-
643 PM CDT TUE JUN 12 2007

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR HAYES COUNTY...

RAIN SHOWERS AND THUNDERSTORMS HAVE SHARPLY DECREASED IN INTENSITY 
ACROSS HAYES COUNTY OVER THE PAST 1 TO 2 HOURS. THE IMMEDIATE THREAT 
OF FLASH FLOODING HAS PASSED...HOWEVER SOME THUNDERSTORM DEVELOPMENT 
IS POSSIBLE FROM THE LATE EVENING INTO THE OVERNIGHT HOURS ACROSS 
SOUTHWESTERN NEBRASKA. 

A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL WEDNESDAY EVENING FOR 
HAYES COUNTY. 

IF FLOODING WAS OBSERVED...CONTACT LOCAL LAW ENFORCEMENT AND HAVE 
THEM PASS THE REPORT TO THE NATIONAL WEATHER SERVICE IN NORTH 
PLATTE. 

LAT...LON 4035 10133 4034 10078 4069 10078 4069 10133

$$

BUTTLER

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 11, 7:28 PM CDTSevere Thunderstorm WarningLBFChase62 min
Jun 11, 8:01 PM CDTFlash Flood WarningLBFChase119 min
Jun 11, 8:11 PM CDTFlash Flood WarningLBFChase, Hayes6 hr
Jun 11, 9:34 PM CDTSevere Thunderstorm WarningLBFPerkins41 min
Jun 11, 10:31 PM CDTFlash Flood WarningLBFPerkins4 hr
Jun 12, 1:00 AM CDTSevere Thunderstorm WarningLBFChase60 min
Jun 12, 1:17 AM CDTTornado WarningLBFChase43 min
Jun 12, 2:10 AM CDTFlash Flood WarningLBFChase6 hr
Jun 12, 2:23 AM CDTFlash Flood WarningLBFPerkins4 hr
Jun 12, 3:39 AM CDTFlash Flood WatchLBFArthur, Blaine, Boyd, Brown, Chase, Cherry and 20 more48 hr
Jun 12, 7:54 AM CDTFlash Flood WarningLBFChase4 hr
Jun 12, 12:19 PM CDTFlash Flood WarningLBFChase, Perkins6 hr
Jun 12, 12:41 PM CDTSevere Thunderstorm WarningLBFCherry34 min
Jun 12, 1:23 PM CDTSevere Thunderstorm WarningLBFKeith40 min
Jun 12, 2:28 PM CDTFlash Flood WarningLBFKeith6 hr
Jun 12, 2:46 PM CDTSevere Thunderstorm WarningLBFLincoln30 min
Jun 12, 4:22 PM CDTFlash Flood WarningLBFLincoln6 hr
Jun 12, 4:29 PM CDTSevere Thunderstorm WarningLBFLincoln61 min

Nearby

Flash Flood Warnings in Nebraska, 2007Every flash flood warning in 2007

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.