Alert archive / Nebraska / Red Flag Warnings in 2012

Red Flag Warning 29, NWS Hastings, NE

September 21, 20126 counties in Nebraska; 4 counties in Kansas

NWS Hastings, NE issued this red flag warning at Sep 21, 2012, 3:39 AM CDT for 6 counties in Nebraska; 4 counties in Kansas. It took effect at Sep 21, 2012, 12:00 PM CDT. It was in force for 2 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
Sep 21, 2012, 3:39 AM CDT (08:39 UTC)
In effect from
Sep 21, 2012, 12:00 PM CDT
Expired
Sep 21, 2012, 2:21 PM CDT
In force
2 hr
Issued by
NWS Hastings, NE

Counties Osborne County, KS, Phillips County, KS, Rooks County, KS, Smith County, KS, Dawson County, NE, Franklin County, NE, Furnas County, NE, Gosper County, NE, Harlan County, NE, Phelps County, NE

The radar

The Grand Island radar (KUEX), 83 km from the middle of the area, began a volume at 08:42 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, 8.7 hours before the alert went out and 158 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 2012-09-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 2012-09-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
3373 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
143 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.

861 
WWUS83 KGID 210839
RFWGID

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE HASTINGS NE
339 AM CDT FRI SEP 21 2012

...CRITICAL FIRE DANGER THIS AFTERNOON...

.NORTHWEST WINDS WILL INCREASE BY MID MORNING AND WILL AVERAGE 15
TO 20 MPH AND GUST TO 30 MPH THROUGH THE AFTERNOON...WHILE
RELATIVE HUMIDITY VALUES DROP BELOW 20 PERCENT.  THE COMBINATION
OF THE GUSTY WINDS...LOW RELATIVE HUMIDITIES AND DRY VEGETATION
WILL RESULT IN CRITICAL FIRE DANGER CONDITIONS.

KSZ005-006-017-018-NEZ060-072-073-082>084-211715-
/O.NEW.KGID.FW.W.0029.120921T1700Z-120922T0000Z/
PHILLIPS-SMITH-ROOKS-OSBORNE-DAWSON-GOSPER-PHELPS-FURNAS-HARLAN-
FRANKLIN-
339 AM CDT FRI SEP 21 2012

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
005...006...017...018...060...072...073...082...083 AND 084...

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A RED FLAG
WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT
FROM NOON TODAY TO 7 PM CDT THIS EVENING.

* AFFECTED AREA...IN KANSAS...FIRE WEATHER ZONE 005 PHILLIPS... 
  FIRE WEATHER ZONE 006 SMITH...FIRE WEATHER ZONE 017 ROOKS AND 
  FIRE WEATHER ZONE 018 OSBORNE. IN NEBRASKA...FIRE WEATHER ZONE 
  060 DAWSON...FIRE WEATHER ZONE 072 GOSPER...FIRE WEATHER ZONE 
  073 PHELPS...FIRE WEATHER ZONE 082 FURNAS...FIRE WEATHER ZONE 
  083 HARLAN AND FIRE WEATHER ZONE 084 FRANKLIN.

* WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS TO 30 MPH.

* RELATIVE HUMIDITY...FALLING TO BETWEEN 15 AND 20 PERCENT.

* IMPACTS...THESE CONDITIONS WILL ALLOW FOR EXPLOSIVE FIRE 
  GROWTH AND MAKE ANY FIRES THAT DEVELOP VERY DIFFICULT TO 
  CONTAIN. USE CAUTION WHEN CONDUCTING ACTIVITIES WHICH COULD 
  RESULT IN A FIRE. THIS INCLUDES THOSE UNDERWAY WITH HARVEST...
  AS THE USE OF LARGE FARM MACHINERY AND OFF ROAD VEHICLES IN 
  THESE CONDITIONS COULD RESULT IN AN ACCIDENTAL FIRE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$
2 follow-up statements
458 
WWUS83 KGID 211616
RFWGID

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE HASTINGS NE
1116 AM CDT FRI SEP 21 2012

...CRITICAL FIRE DANGER THIS AFTERNOON...

.A NORTHWESTERLY WIND WILL CONTINUE TO INCREASE THIS AFTERNOON
WITH AVERAGE SPEEDS OF 15 TO 20 MPH AND GUSTS TO 30 MPH...WHILE
RELATIVE HUMIDITY VALUES DROP BELOW 20 PERCENT. THE COMBINATION OF
THE GUSTY WIND...LOW RELATIVE HUMIDITIES AND DRY VEGETATION WILL
RESULT IN CRITICAL FIRE DANGER CONDITIONS.

KSZ005-006-017-018-NEZ060-072-073-082>084-220000-
/O.CON.KGID.FW.W.0029.120921T1700Z-120922T0000Z/
PHILLIPS-SMITH-ROOKS-OSBORNE-DAWSON-GOSPER-PHELPS-FURNAS-HARLAN-
FRANKLIN-
1116 AM CDT FRI SEP 21 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 005...
006...017...018...060...072...073...082...083 AND 084...

* AFFECTED AREA...IN KANSAS...FIRE WEATHER ZONE 005 PHILLIPS... 
  FIRE WEATHER ZONE 006 SMITH...FIRE WEATHER ZONE 017 ROOKS AND 
  FIRE WEATHER ZONE 018 OSBORNE. IN NEBRASKA...FIRE WEATHER ZONE 
  060 DAWSON...FIRE WEATHER ZONE 072 GOSPER...FIRE WEATHER ZONE 
  073 PHELPS...FIRE WEATHER ZONE 082 FURNAS...FIRE WEATHER ZONE 
  083 HARLAN AND FIRE WEATHER ZONE 084 FRANKLIN.

* WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS TO 30 MPH.

* RELATIVE HUMIDITY...FALLING TO BETWEEN 15 AND 20 PERCENT.

* IMPACTS...THESE CONDITIONS WILL ALLOW FOR EXPLOSIVE FIRE 
  GROWTH AND MAKE ANY FIRES THAT DEVELOP VERY DIFFICULT TO 
  CONTAIN. USE CAUTION WHEN CONDUCTING ACTIVITIES WHICH COULD 
  RESULT IN A FIRE. THIS INCLUDES THOSE UNDERWAY WITH HARVEST... 
  AS THE USE OF LARGE FARM MACHINERY AND OFF ROAD VEHICLES IN 
  THESE CONDITIONS COULD RESULT IN AN ACCIDENTAL FIRE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

GUERRERO
213 
WWUS83 KGID 211921
RFWGID

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE HASTINGS NE
221 PM CDT FRI SEP 21 2012

KSZ005-006-017-018-NEZ060-072-073-082>084-212030-
/O.CAN.KGID.FW.W.0029.000000T0000Z-120922T0000Z/
PHILLIPS-SMITH-ROOKS-OSBORNE-DAWSON-GOSPER-PHELPS-FURNAS-HARLAN-
FRANKLIN-
221 PM CDT FRI SEP 21 2012

...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 005...006...017...018...060...
072...073...082...083 AND 084...

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS CANCELLED THE RED
FLAG WARNING.

ALTHOUGH RELATIVE HUMIDITY VALUES WILL REMAIN BELOW 20
PERCENT THROUGH EARLY THIS EVENING...SUSTAINED WIND SPEEDS ARE
EXPECTED TO REMAIN BELOW 20 MPH AND GUSTS ARE EXPECTED TO BE BELOW
25 MPH FOR THE REMAINDER OF THE AFTERNOON. AS A RESULT...THE RED
FLAG WARNING HAS BEEN CANCELED.

$$

GUERRERO

Nearby

Red Flag Warnings in Nebraska, 2012Red Flag Warnings in Kansas, 2012Every red flag warning in 2012

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.