Alert archive / Nebraska / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 45, NWS Hastings, NE
NWS Hastings, NE issued this severe thunderstorm warning at Apr 20, 2001, 5:59 PM CDT for Dawson County, Nebraska. It was in force for 61 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
- Apr 20, 2001, 5:59 PM CDT (22:59 UTC)
- Expired
- Apr 20, 2001, 7:00 PM CDT
- In force
- 61 min
- Issued by
- NWS Hastings, NE
- Area
- Whole counties
County Dawson County, NE
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 20, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.0 hours before the alert went out and 72 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2145 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 341 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
982 WUUS53 KGID 202300 SVRGRI NEC047-065-073-210000- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HASTINGS NE 559 PM CDT FRI APR 20 2001 THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... FURNAS COUNTY IN SOUTH CENTRAL NEBRASKA DAWSON COUNTY IN SOUTH CENTRAL NEBRASKA GOSPER COUNTY IN SOUTH CENTRAL NEBRASKA * UNTIL 700 PM CDT * AT 553 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 13 MILES WEST OF GOTHENBURG TO 14 MILES WEST OF WILSONVILLE...OR FROM 21 MILES SOUTHEAST OF NORTH PLATTE TO 16 MILES SOUTHEAST OF MCCOOK...MOVING EAST AT 55 MPH. SOME LOCATIONS IN THE PATH OF THIS LINE OF STORMS INCLUDE CAMBRIDGE...WILLOW ISLAND...COZAD...ARAPAHOE AND EDISON. PEOPLE IN FURNAS...DAWSON AND GOSPER COUNTIES SHOULD SEEK SHELTER IN A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. DAMAGING THUNDERSTORM WINDS IN EXCESS OF 70 MPH AND LARGE HAIL ARE LIKELY. $$ GURNEY/GUYER 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 Apr 20, 1:55 PM CDT, 4 hours 4 minutes earlier.
Area forecast discussion, Apr 20, 1:55 PM CDT, 4 hours 4 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HASTINGS NE 155 PM CDT FRI APR 20 2001 ...IMMEDIATE THUNDERSTORMS CHCS AND THEN PRECIP FOR SUNDAY CONCERN THIS TIME AROUND... DONT PLAN ON MAKING THIS OVERLY LONG IN CASE TSTMS POP UP IN NEAR FUTURE. WEST/EAST SFC BOUNDARY IN OUR KANSAS CWA HAS MOVED ONLY A LITTLE NORTH THE PAST SIX HOURS. BEST SFC MOISTURE STILL OFF TO THE EAST AND SE BUT TRYING ITS BEST TO ADVECT WESTWARD. 850 MOISTURE WAS ALSO WELL EAST AT 12Z BUT FBY AND RWD PROFILERS HAVE BEEN RUNNING EAST ALL MORNING SO MODELS LOOK ON TRACK TO BRING SOME OF THAT MOISTURE IN AS WELL. POTENT SHORTWAVE SEEN ON UPPER AIR ANALYSIS AND SATELLITE IMAGERY APPROACHING FROM EASTERN COLORADO. ALSO HAS 70 KT JET AT 500 MB AT 12Z OVER AZ/WRN NM WHICH WAS MOVING INTO THE WESTERN PART OF THE PROFILER NETWORK. OTHER NOTES...TEMPS IN THE 80S...WITH 60S FOR DEWPTS...SOUTH OF BNDRY WHILE COOLER 70S NORTH. FCST SOUNDINGS OVER GRI FOR 0Z FROM MESOETA HAD PROJECTED CAPES OF NEAR 3000 J/KG WITH SRH OF OVER 300 M2/S2...AND LCL OF 1800 FT. WILL HAVE TO KEEP CLOSE WATCH ON SFC WINDS AND BOUNDARY ONCE CONVECTION STARTS. FAST MOVING SYSTEM SHOULD CLR MOST OF CWA BY MIDNIGHT. ATTENTION THEN TURNS TO SUNDAY. MODELS DIFFER ON SPEED OF UPPER LOW BUT ALL AGREE ON PRECIP GENERATION. ETA IS QUICKER AND MORE ROBUST WITH QPF. BIGGEST DILEMMA IS PRECIP TYPE. ETA BRINGS 850 TEMPS DOWN TO ZERO BY SAT EVENG AND KEEPS THEM -2 TO -4C ON SUN IN OUR NWESTERN CWA. AVN RUNNING ABOUT 10 DEGREES WARMER THAN THAT. THINK ETA IS TOO AGGRESSIVE WITH SYSTEM AND COLD AIR WHILE AVN LACKING. WILL DECIDE ABOUT SNOW MENTION IN WEST AFTER COORD WITH LBF. TEMPS WILL ALSO HAVE TO BE ADJUSTED FOR SUNDAY. WILL TAKE QUICK LOOK AT EXTENDED BUT MAIN CHANGE WILL PROBABLY BE TO REMOVE RAIN CHCS FOR TUES AS LATEST AVN KEEPS UPPER LOW PROGRESSIVE. .GID...NONE EWALD
In the hours before
Special weather statement, Apr 20, 4:29 PM CDT, 1 hour 30 minutes before
KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-210200- SEVERE WEATHER OUTLOOK - SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS NATIONAL WEATHER SERVICE HASTINGS NE 429 PM CDT FRI APR 20 2001 ...SPOTTER ACTIVATION WILL LIKELY BE NECESSARY THIS EVENING... A STRONG LOW PRESSURE AREA WILL CONTINUE TO ADVANCE THROUGH EASTERN COLORADO AND WESTERN KANSAS THIS EVENING...ALL WHILE A WARM FRONT LIFTS NORTHWARD FROM INTERSTATE 80 IN SOUTH CENTRAL NEBRASKA. AS THIS SYSTEM APPROACHES...THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS THE WESTERN SECTIONS OF NEBRASKA AND KANSAS EARLY THIS EVENING. THESE STORMS ARE EXPECTED TO INITIALLY SPREAD INTO AREAS TO THE WEST OF HIGHWAY 183 BETWEEN 6 PM AND 8 PM...AND THEN CONTINUE HEADING EASTWARD THROUGH THE REST OF SOUTH CENTRAL NEBRASKA AND NORTH CENTRAL KANSAS DURING THE EVENING. DAYTIME HEATING AND AMPLE LOW LEVEL MOISTURE HAS SET UP A MODERATELY UNSTABLE AIRMASS ACROSS SOUTH CENTRAL NEBRASKA AND NORTH CENTRAL KANSAS...SETTING THE STAGE FOR THUNDERSTORMS TO BECOME SEVERE ACROSS THE AREA. THE BULK OF THIS ACTIVITY IS EXPECTED TO OCCUR IN SOUTH CENTRAL NEBRASKA AND NORTH CENTRAL KANSAS BETWEEN 7 PM AND 2 AM. THE MAIN THREAT WITH THESE STORMS WILL BE LARGE HAIL AND DAMAGING WINDS... ALTHOUGH AN ISOLATED TORNADO CANNOT BE RULED OUT. AREA EMERGENCY MANAGEMENT OFFICIALS AND SPOTTER GROUPS SHOULD PAY CLOSE ATTENTION TO THIS DEVELOPING SITUATION...WITH SPOTTER ACTIVATION A GOOD POSSIBILITY THIS EVENING. GUYER
The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 5:59 PM CDT | Severe Thunderstorm Warning | GID | Furnas, Gosper | 61 min |
| Apr 20, 6:55 PM CDT | Severe Thunderstorm Warning | GID | Franklin, Harlan | 65 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2001Every severe thunderstorm warning in 2001
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.