Alert archive / Nebraska / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 241, NWS Hastings, NE

September 22, 2001Fillmore County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Sep 22, 2001, 5:37 AM CDT for Fillmore County, Nebraska. It was in force for 53 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: Sep 22, 2001, 5:37 AM CDT (10:37 UTC)
Expired: Sep 22, 2001, 6:30 AM CDT
In force: 53 min
Issued by: NWS Hastings, NE
Area: Whole counties

County Fillmore County, NE

The radar

The Grand Island radar (KUEX), 75 km from the middle of the area, began a volume at 10:36 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 22, 3:15 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 10.6 hours before the alert went out and 136 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: 35 J/kg
Mixed-layer CIN: -247 J/kg
Mixed-layer LCL: 1607 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Sep 22, 3:20 AM CDT, 2 hours 17 minutes earlier.

Area forecast discussion, Sep 22, 3:20 AM CDT, 2 hours 17 minutes before

SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
320 AM CDT SAT SEP 22 2001

FORECAST CONCERNS ARE TSTMS TODAY...FOLLOWED BY EXTENT OF COOLING
BEHIND FRONT

EVENING ANALYSIS SHOWED A FAIRLY ACTIVE NW FLOW REGIME WITH SEVERAL
EMBEDDED SHORTWAVES.  AN H85 WARM FRONT STRETCHED N/S ACROSS CENTRAL
NEB AND MOIST AXIS OF 10+C H85 DPS REACHED LBF.  AT THE SFC AS OF
06Z...THE SFC BOUNDARY WAS LOCATED FROM SW TO SC NEBRASKA WITH A
SIMILAR MOIST AXIS OF 60F DPS EXTENDING NORTH FROM KS INTO SC NEB.
ELEVATED TSTMS HAVE DEVELOPED LAST COUPLE OF HOURS ON NOSE OF 35KT
LLVL JET AND OVERALL COVERAGE HAS INCREASED.  HAIL IS THE PRIMARY
THREAT WITH STORMS WITH SVR WATCH FORTHCOMING.

SCATTERED TSTMS WILL CONTINUE EARLY THIS MORNING...WITH
REDEVELOPMENT THIS AFTN AS SFC COLD FRONT...CURRENTLY IN SE
MT...APPROACHES CWA.  WILL GO WITH AFTN POPS RANGING FROM 30 NW TO
50 SE.  AFTN TEMPS WILL BE WARM SW WITH HIGHS NR 90...WITH MAXES IN
THE 80S ELSEWHERE...OR GENERALLY NR FWC.  TSTM CHCS WILL CONTINUE
TONIGHT BEFORE FRONT CLEARS CWA.  LATEST SWODY1 OUTLINES SVR THREAT
WITH HAIL/WIND PRIMARY THREATS.

COOLEST AIR ARRIVES SUNDAY AND CAA WILL DROP MAXES SOME 20-25
DEGREES FROM TODAYS.  OVERALL HIGHS IN THE 60S.  HOW COOL TEMPS WILL
BE SUNDAY NIGHT IS A CONCERN...AS WELL AS ANY FROST POTENTIAL IN
NORTHEAST AS 1033MB SFC HIGH BUILDS SE.  ATTM WILL KEEP LOWS IN
UPPER 30S RANGE IN NE COUNTIES AND NOT MENTION FROST....BUT WILL
NEED TO MONITOR.

NO SIGNIFICANT CHANGES PLANNED FOR THE EXTENDED.

.GID...NONE.

FAY

In the hours before

Local storm report, Sep 22, 5:10 AM CDT, 27 minutes before

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Local storm report, Sep 22, 5:20 AM CDT, 17 minutes before

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Local storm report, Sep 22, 5:35 AM CDT, 2 minutes before

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<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 22, 12:32 AM CDT	Severe Thunderstorm Warning	GID	Kearney, Phelps	43 min
Sep 22, 3:41 AM CDT	Severe Thunderstorm Warning	GID	Hamilton	49 min
Sep 22, 4:19 AM CDT	Severe Thunderstorm Warning	GID	Clay	41 min
Sep 22, 4:59 AM CDT	Severe Thunderstorm Warning	GID	Hamilton	46 min
Sep 22, 5:00 AM CDT	Severe Thunderstorm Warning	GID	Clay	45 min
Sep 22, 7:31 AM CDT	Severe Thunderstorm Warning	GID	Fillmore	44 min
Sep 22, 6:59 PM CDT	Tornado Warning	GID	Clay, Fillmore	46 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2001 Every 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; radar from the NEXRAD Level II archive.