Alert archive / Nebraska / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 111, NWS Hastings, NE

July 20, 2000Howard County, Merrick County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jul 20, 2000, 1:01 AM CDT for Howard County, Merrick County, Nebraska. It was in force for 44 min. 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 20, 2000, 1:01 AM CDT (06:01 UTC)
Expired: Jul 20, 2000, 1:45 AM CDT
In force: 44 min
Issued by: NWS Hastings, NE
Area: Whole counties

Counties Howard County, NE, Merrick County, NE

The radar

The Grand Island radar (KUEX), 98 km from the middle of the area, began a volume at 06:03 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 00:00Z, 6.0 hours before the alert went out and 160 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 761 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 103 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 
WUUS53 KGID 200601
SVRGRI
NEC093-121-200645-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
101 AM CDT THU JUL 20 2000

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN HOWARD COUNTY IN CENTRAL NEBRASKA
  WESTERN MERRICK COUNTY IN CENTRAL NEBRASKA

* UNTIL 145 AM CDT

* AT 1257 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER CUSHING...OR ABOUT 25 MILES NORTH OF GRAND
  ISLAND...MOVING SOUTHEAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ARCHER AT 115 AM CDT
  CHAPMAN AT 125 AM CDT

THIS WARNING REPLACES PREVIOUS TORNADO WARNINGS.

PEOPLE IN NORTHEASTERN HOWARD AND WESTERN MERRICK COUNTIES SHOULD
SEEK SHELTER IN A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
DAMAGING THUNDERSTORM WINDS IN EXCESS OF 60 MPH AND LARGE HAIL THE
SIZE OF GOLFBALLS ARE LIKELY.

$$

NNNN

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jul 19, 2:40 PM CDT, 10 hours 21 minutes earlier.

Area forecast discussion, Jul 19, 2:40 PM CDT, 10 hours 21 minutes before

SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
240 PM CDT WED JUL 19 2000

THUNDERSTORM CHANCES ARE THE FOCUS AGAIN THIS CYCLE AS UPPER FLOW
TRANSITIONS FROM WLY TO NWLY BUT TROPICAL MOISTURE REMAINS TRAPPED
IN RIDGE. ALSO MODELS DO NOT HAVE A VERY GOOD TRACK RECORD WITH THE
WEAK WAVES ANALYZED THIS MORNING TOPPING UPPER RIDGE. AGAIN TODAY
THE 12Z IS BACKING OFF OF HIGH PLAINS CONVECTION. QUESTION IS WHETHER
THIS WILL BE A MISTAKE TODAY. CURRENT INDICIATIONS ARE MAYBE NOT.
CAPE ACRS NWRN KS/NERN COLO IN 1500-2000 J/KG RANGE...QUITE A BIT
LOWER THAN YESTERDAY VISIBLE IMAGERY SHOWING MUCH LESS IN WAY OF
CONVECTION OVER NERN COLO AT THIS TIME YESTERDAY. METARS ALSO
SHOWING LESS UPSLOPE FLOW. THIS SAID STILL THINK SOME DEVELOPMENT
POSSIBLE BUT WILL BACK OFF LIKELY POPS IN SWRN ZONES.

MODELS ARE KEYING MORE ON MOST SIGNIFICANT WAVE ANALYZED OVER MT AT
12Z. THIS WOULD FOCUS BULK OF CONVECTION ACRS NRN PLAINS THEN SLIDE
SEWD LATE NIGHT OR EARLY TOMORROW THROUGH IA/ERN NEBR. ACCOMPANYING
COLD FRONT TO ADD LOW LEVEL FOCUS. FRONT CONTINUES SOUTH INTO NCNTL
KS DURING AFTN. WITH BETTER MOISTURE...HIGHER CAPE AND STILL FAIRLY
STEEP LAPSE RATES WILL CONTINUE WITH A DECENT CHC IN SRN ZONES
THROUGH THURSDAY NIGHT.

LATER PDS A LITTLE MORE NEBULOUS AS AREAS OF BEST LIFT APPEAR TO
DIMINISH. STILL WITH MOIST NW FLOW WILL CONTINUE WITH SLGT/CHC POPS
THROUGH THE WEEKEND BEFORE RIDGE BUILDS IN A LITTLE BETTER MONDAY.

COOL REGIME TO CONTINUE WITH CLOUDS AND REINFORCING COOL SHOTS. WILL
TREND TO LOW END OR BELOW GUIDANCE.

.GID...NONE.

BARRITT

In the hours before

Local storm report, Jul 19, 11:36 PM CDT, 1 hour 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
1136 PM CDT WED JUL 19 2000

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1123 PM    4 W LOUP CITY             NE    1 INCH HAIL
07/19/00   SHERMAN

Local storm report, Jul 19, 11:48 PM CDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
1148 PM CDT WED JUL 19 2000

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1140 PM    3 W COTESFIELD            NE    .75 INCH HAIL
07/19/00   HOWARD

Local storm report, Jul 20, 12:07 AM CDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
1207 AM CDT THU JUL 20 2000

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....d

1205 AM    12 NW GREELEY             NE    .88 INCH HAIL
07/19/00   GREELEY

Special weather statement, Jul 20, 12:36 AM CDT, 25 minutes before

NEZ060-072-073-082-083-200600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
1236 AM CDT THU JUL 20 2000

SEVERE THUNDERSTORM WATCH NUMBER 596 HAS BEEN CANCELLED FOR THE
FOLLOWING COUNTIES IN SOUTH CENTRAL NEBRASKA...

DAWSON...PHELPS...GOSPER...FURNAS AND HARLAN.

SCATTERED SHOWERS AND THUNDERSTORMS MAY CONTINUE LATE TONIGHT
IN THESE COUNTIES...BUT THE THREAT OF SEVERE WEATHER HAS GREATLY
DIMINISHED.

@DROZD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 10:50 PM CDT	Severe Thunderstorm Warning	GID	Furnas	40 min
Jul 19, 10:53 PM CDT	Severe Thunderstorm Warning	GID	Sherman	52 min
Jul 19, 11:37 PM CDT	Severe Thunderstorm Warning	GID	Howard	38 min
Jul 20, 12:02 AM CDT	Severe Thunderstorm Warning	GID	Greeley	43 min
Jul 20, 12:04 AM CDT	Severe Thunderstorm Warning	GID	Merrick, Nance	41 min
Jul 20, 12:28 AM CDT	Tornado Warning	GID	Greeley, Howard	32 min
Jul 20, 12:34 AM CDT	Tornado Warning	GID	Merrick, Nance	26 min
Jul 20, 4:03 PM CDT	Severe Thunderstorm Warning	GID	Furnas	42 min
Jul 20, 4:43 PM CDT	Severe Thunderstorm Warning	GID	Furnas	62 min
Jul 20, 4:49 PM CDT	Tornado Warning	GID	Furnas	41 min
Jul 20, 5:12 PM CDT	Severe Thunderstorm Warning	GID	Gosper	48 min
Jul 20, 5:48 PM CDT	Severe Thunderstorm Warning	GID	Phelps	57 min
Jul 20, 6:00 PM CDT	Severe Thunderstorm Warning	GID	Gosper	30 min
Jul 20, 6:17 PM CDT	Severe Thunderstorm Warning	GID	Harlan	58 min
Jul 20, 6:45 PM CDT	Severe Thunderstorm Warning	GID	Kearney, Phelps	45 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2000 Every severe thunderstorm warning in 2000

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.