Alert archive / Nebraska / Flash Flood Warnings in 1996

Flash Flood Warning 4, NWS Hastings, NE

July 19, 1996Webster County, Nebraska

NWS Hastings, NE issued this flash flood warning at Jul 19, 1996, 10:13 PM CDT for Webster County, Nebraska. It was in force for 10 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: Jul 19, 1996, 10:13 PM CDT (03:13 UTC)
Expired: Jul 20, 1996, 8:15 AM CDT
In force: 10 hr
Issued by: NWS Hastings, NE
Area: Whole counties

County Webster County, NE

The radar

The Grand Island radar (KUEX), 17 km from the middle of the area, began a volume at 03:16 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, 3.2 hours before the alert went out and 206 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: 223 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 1169 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGRI 200314
FFWGRI
NEC181-201315-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
1013 PM CDT FRI JUL 19 1996
 
THE NATIONAL WEATHER SERVICE IN HASTINGS NE  HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  815 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL NEBRASKA
 
   ...SOUTHERN WEBSTER COUNTY
 
OVERFLOWS ON THE REPUBLICAN RIVER NEAR GUIDE ROCK WILL LIKELY
FLOOD LOW LYING AREAS ADJACENT TO THE RIVER BY SATURDAY
MORNING.  PEOPLE WITH LIVESTOCK AND PROPERTY NEAR THE RIVER
SHOULD MAY NEED TO MOVE IT TO HIGHER GROUND.
 
THE RIVER IS FORECAST TO CREST ABOUT A FOOT AND A HALF ABOVE
FLOOD STAGE NEAR NOON SATURDAY.  THE STAGE IS FORECAST TO
REACH 12.5 FEET WITH FLOOD STAGE OF 11 FEET.
 
THE REPUBLICAN IS ALSO FORECAST TO CREST NEAR FLOOD STAGE
AT RIVERTON EARLY SATURDAY MORNING.
 
MORE THAN 3 INCHES OF RAIN HAS FALLEN UPON MANY
LOCATIONS IN THE REPUBLICAN RIVER DRAINAGE AREA NORTH OF
THE RIVER AND DOWNSTREAM FROM HARLAN COUNTY RESERVOIR TONIGHT.
RUNOFF HAS ALREADY SENT THOMPSON CREEK OUT OF ITS BANKS AT
RIVERTON.  THE REPUBLICAN IS ON THE RISE AND MORE RAIN
IS EXPECTED.
 
SCHURR
 
 
 
DO NOT ATTEMPT TO DRIVE OVER A ROAD COVERED BY WATER.  THE ROAD
COULD BE WASHED OUT UNDER THE WATER SURFACE OR YOUR CAR COULD BE
SWEPT AWAY IF WATER IS FLOWING SWIFTLY.

What forecasters said that day

The local office's own words before this flash flood warning 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 warning went out at Jul 19, 2:46 PM CDT, 7 hours 27 minutes earlier.

Area forecast discussion, Jul 19, 2:46 PM CDT, 7 hours 27 minutes before

CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
245 PM CDT FRI JUL 19 1996

AMAZING HOW QUICKLY HIGH AND DRY CAN GO TO WET AND WILD...PROBLEM OF
FCST TON WL BE PREDICTING WHERE COPIOUS RAINS WILL FALL NEXT 24 HRS.

MIDDAY SFC CHART...KUEX RADAR AND 1 KM SATL SHOWED STNRY FNTL BNDRY
ALONG KS/NEB BORDER WITH SFC LOW SW NEB. AM CONVECTION HAS DRIFTED
NORTH IN MEAN SLY FLOW AFTER FIRING ALONG THIS BNDRY ERLYR. SOME STORMS
PULSING WITH HIGH VILS...BUT ONLY RECEIVING R+ REPORTS AS AMS HIGHLY
TROPICAL WITH PCPBL H20 VALUES 160-190 PCT OF NORMAL. TSTMS THAT HAVE
LASTED LESS THAN AN HOUR HV PRODUCED NEAR AND INCH OF RAIN IN SPOTS.

WEAK UPR WIND PATTERN ANALYZED THIS AM AND THUS BLV SYSTEM TO MOVE
SLOLY NEXT 24 HRS.  MODELS INITIALIZED FAIRLY WELL...ALTHO SLY MOVMT OF
H5 S/WV ON NGM A BIT SUSPECT COMPARED WITH OTHER FEATURES...NAMELY QPF.
H8 THETAE RIDGE NEARLY IN LINE WITH SFC STNRY FNT AND WK H8 WMFNT ALONG
NRN KS. THETAE GRAD THUS SITUATED OVER SC INTO SE NEB. MIDLVL THICKNESS
PATTERN ALIGNED E-W THRU REGION DURING THE PD. THETAE ADVECTION PATTERN
...ISENT LIFT AND MOIST FLUX CONVG EXIST ACRS CWA THRU TMRW PM. WITH
ALL THIS COMING TOGETHER...EXPECT ADDL STORMS TO FIRE VCNTY BNDRY AGAIN
THIS EVE...PARTICULARLY WITH LLJ INCRG TON. WITH HISTORY OF STMS
TDY...HI PCPBL H20/S AND 2.5-3.5 INCH FFG WILL GO WITH FFA NC KS AND SC
NEB BASICALLY SOUTH AND EAST OF PLATTE R FOR NOW. FFG AND SANDY SOILS
NORTHERN CWA SHUD BE ABLE TO HANDLE ANY PCPN.

SYS SHUD DRIFT EAST OF AREA TMRW PM WITH LOWER POPS IN ORDER...BUT MCS
LIKELY AGAIN SAT NITE ERN NEB/KS. LITTLE TIME TO LUK AT TEMPS STRUCTURE
BUT WITH CLDS AND TEMPS NOT REACHING 90 TDY..h.COLR FWC LUKS BEST
NEB...WL MIX FWC/FAN NC KS.

GRI 071/086 64        HBR 073/089 75
ODX 067/090 43        BLT 073/091 75
LXN 068/088 63

BREWSTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 8:36 PM CDT	Flash Flood Warning	GID	Franklin	4 hr

Nearby

Flash Flood Warnings in Nebraska, 1996 Every flash flood warning in 1996

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.