Alert archive / Nebraska / Flash Flood Warnings in 1996

Flash Flood Warning 3, NWS Hastings, NE

July 19, 1996Franklin County, Nebraska

NWS Hastings, NE issued this flash flood warning at Jul 19, 1996, 8:36 PM CDT for Franklin County, Nebraska. It was in force for 4 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, 8:36 PM CDT (01:36 UTC)
Expired: Jul 20, 1996, 12:45 AM CDT
In force: 4 hr
Issued by: NWS Hastings, NE
Area: Whole counties

County Franklin County, NE

The radar

The Grand Island radar (KUEX), 46 km from the middle of the area, began a volume at 01:36 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, 1.6 hours before the alert went out and 175 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 200138
FFWGRI
NEC061-200545-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
836 PM CDT FRI JUL 19 1996
 
THE NATIONAL WEATHER SERVICE IN HASTINGS NE  HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 1245 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL NEBRASKA
 
   ...SOUTHEASTERN FRANKLIN COUNTY
 
PEOPLE IN AREAS PRONE TO FLOODING BY THOMPSON CREEK IN AND NEAR
RIVERTON SHOULD GET TO HIGH GROUND AT ONCE.
 
DOPPLER RADAR INDICATED AT LEAST 3 INCHES OF RAIN FELL UPSTREAM
FROM RIVERTON EARLIER THIS EVENING.  THE CREEK WAS REPORTED
AT A STAGE OF 7.5 FEET AT RIVERTON AT 645 THIS EVENING...AND
IT HAD RISEN TO 10.6 FEET AT 810 PM. FLOOD STAGE AT RIVERTON
IS 10 FEET.
 
THE CREEK IS FORECAST TO CONTINUE TO RISE WITH A STAGE OF AT LEAST
15 FEET LIKELY.  LOW LYING AREAS ON THE WEST SIDE OF THE
RIVERTON COMMUNITY WILL LIKELY BE FLOODED.  ADDITIONAL RAIN
IS ON THE WAY AND THAT COULD AGGRAVATE AND PROLONG THE FLOODING.
 
THE CREEK WILL CAUSE THE REPUBLICAN RIVER TO RISE...BUT THE
RIVER SHOULD STAY WITHIN ITS BANKS.
 
 
 
PEOPLE NEAR STREAMS OR IN LOW LYING AREAS SHOULD NOT WASTE TIME
TRYING TO SAVE PERSONAL PROPERTY...MOVE TO HIGH GROUND IMMEDIATELY.
 
 
SCHURR

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, 5 hours 50 minutes earlier.

Area forecast discussion, Jul 19, 2:46 PM CDT, 5 hours 50 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, 10:13 PM CDT	Flash Flood Warning	GID	Webster	10 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.