Alert archive / Wyoming / Red Flag Warnings in 2012

Red Flag Warning 21, NWS Rapid City, SD

July 11, 2012

NWS Rapid City, SD issued this red flag warning at Jul 11, 2012, 3:01 AM MDT. It took effect at Jul 11, 2012, 12:00 PM MDT. It was in force for 10 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 11, 2012, 3:01 AM MDT (09:01 UTC)
In effect from: Jul 11, 2012, 12:00 PM MDT
Expired: Jul 11, 2012, 9:47 PM MDT
In force: 10 hr
Issued by: NWS Rapid City, SD

The text

As transmitted, in the capitals the NWS used until 2016.

519 
WWUS83 KUNR 110901
RFWUNR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RAPID CITY SD
301 AM MDT WED JUL 11 2012

...SCATTERED DRY THUNDERSTORMS ACROSS NORTHEASTERN WYOMING AND
THE BLACK HILLS THIS AFTERNOON AND EVENING...

.AN UPPER LEVEL DISTURBANCE WILL PUSH THROUGH THE NORTHERN PLAINS
THIS AFTERNOON AND EVENING BRINGING SCATTERED THUNDERSTORMS TO
THE AREA. WITH THE OVERALL DRY AIR MASS IN PLACE...THESE
THUNDERSTORMS WILL PRODUCE CONSIDERABLE LIGHTNING WITH ONLY SMALL
AMOUNTS OF RAINFALL.

SDZ260-262-WYZ259-297>299-112130-
/O.UPG.KUNR.FW.A.0018.120711T1800Z-120712T0600Z/
/O.NEW.KUNR.FW.W.0021.120711T1800Z-120712T0600Z/
NORTHERN BLACK HILLS-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-
NORTHERN CAMPBELL-LOWER ELEVATIONS OF CROOK AND WESTON COUNTIES-
WYOMING BLACK HILLS-
301 AM MDT WED JUL 11 2012

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO MIDNIGHT MDT
TONIGHT FOR DRY LIGHTNING ACROSS NORTHEASTERN WYOMING AND THE
BLACK HILLS...

THE NATIONAL WEATHER SERVICE IN RAPID CITY HAS ISSUED A RED FLAG
WARNING FOR DRY LIGHTNING...WHICH IS IN EFFECT FROM NOON TODAY TO
MIDNIGHT MDT TONIGHT.

* AFFECTED AREA...FIRE WEATHER ZONE 259 SOUTHERN CAMPBELL...FIRE 
  WEATHER ZONE 260 NORTHERN BLACK HILLS...FIRE WEATHER ZONE 262 
  SOUTHERN BLACK HILLS...FIRE WEATHER ZONE 297 NORTHERN 
  CAMPBELL...FIRE WEATHER ZONE 298 LOWER ELEVATIONS OF CROOK AND 
  WESTON COUNTIES AND FIRE WEATHER ZONE 299 WYOMING BLACK HILLS.

* WINDS...SOUTH 10 TO 15 MPH WITH GUSTS UP TO 20 MPH.

* RELATIVE HUMIDITY...10 TO 15 PERCENT IN NORTHEASTERN WYOMING.
  20 TO 30 PERCENT IN THE BLACK HILLS.

* TEMPERATURES...MID TO UPPER 90 IN NORTHEASTERN WYOMING. MID 80S
  TO MID 90 IN THE BLACK HILLS.

* LIGHTNING...SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS
  AFTERNOON AND CONTINUE INTO THE EVENING. THESE THUNDERSTORMS
  WILL HAVE THE POTENTIAL TO PRODUCE CONSIDERABLE LIGHTNING AND
  ONLY SMALL AMOUNTS OF RAINFALL.

* IMPACTS...INCREASED LIGHTNING ACTIVITY ON CRITICALLY DRY FUELS 
  MAY PRODUCE NEW FIRES STARTS WITH RAPID FIRE SPREAD. 

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.

&&

$$

3 follow-up statements

675 
WWUS83 KUNR 112014
RFWUNR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RAPID CITY SD
214 PM MDT WED JUL 11 2012

...RED FLAG WARNING IN EFFECT THROUGH THIS EVENING FOR POTENTIAL
DRY LIGHTNING OVER NORTHEASTERN WYOMING AND THE SOUTH DAKOTA BLACK
HILLS...

.AN UPPER LEVEL DISTURBANCE WILL PUSH THROUGH THE NORTHERN PLAINS
THIS AFTERNOON AND EVENING BRINGING SCATTERED THUNDERSTORMS TO
THE AREA. WITH A DRY AIR MASS IN PLACE...THESE THUNDERSTORMS WILL
PRODUCE CONSIDERABLE LIGHTNING WITH ONLY SMALL AMOUNTS OF
RAINFALL.

SDZ260-262-WYZ259-297>299-120415-
/O.CON.KUNR.FW.W.0021.000000T0000Z-120712T0600Z/
NORTHERN BLACK HILLS-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-
NORTHERN CAMPBELL-LOWER ELEVATIONS OF CROOK AND WESTON COUNTIES-
WYOMING BLACK HILLS-
214 PM MDT WED JUL 11 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT
FOR DRY LIGHTNING FOR FIRE WEATHER ZONES 259...297...298...AND 299
IN NORTHEASTERN WYOMING ALONG WITH ZONES 260 AND 262 IN WESTERN
SOUTH DAKOTA...

* AFFECTED AREA...FIRE WEATHER ZONE 259 SOUTHERN CAMPBELL...FIRE 
  WEATHER ZONE 260 NORTHERN BLACK HILLS...FIRE WEATHER ZONE 262 
  SOUTHERN BLACK HILLS...FIRE WEATHER ZONE 297 NORTHERN 
  CAMPBELL...FIRE WEATHER ZONE 298 LOWER ELEVATIONS OF CROOK AND 
  WESTON COUNTIES AND FIRE WEATHER ZONE 299 WYOMING BLACK HILLS.

* WINDS...SOUTHERLY 10 TO 15 MPH WITH GUSTS UP TO 20 MPH.

* RELATIVE HUMIDITY...10 TO 15 PERCENT IN NORTHEASTERN WYOMING...15
  TO 30 PERCENT IN THE BLACK HILLS.

* TEMPERATURES...90S IN NORTHEASTERN WYOMING...MID 80S TO MID 90S
  IN THE BLACK HILLS.

* LIGHTNING...SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS
  AFTERNOON INTO THIS EVENING. THESE THUNDERSTORMS WILL HAVE THE
  POTENTIAL TO PRODUCE CONSIDERABLE LIGHTNING AND ONLY SMALL
  AMOUNTS OF RAINFALL.

* IMPACTS...INCREASED LIGHTNING ACTIVITY ON CRITICALLY DRY FUELS 
  MAY PRODUCE NEW FIRES STARTS WITH RAPID FIRE SPREAD. 

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.

&&

$$

014 
WWUS83 KUNR 112028
RFWUNR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RAPID CITY SD
228 PM MDT WED JUL 11 2012

...RED FLAG WARNING REMAINS IN EFFECT THROUGH THIS EVENING FOR
POTENTIAL DRY LIGHTNING OVER NORTHEASTERN WYOMING AND THE SOUTH
DAKOTA BLACK HILLS...

.AN UPPER LEVEL DISTURBANCE WILL PUSH THROUGH THE NORTHERN PLAINS
THIS AFTERNOON AND EVENING BRINGING SCATTERED THUNDERSTORMS TO
THE AREA. WITH A DRY AIR MASS IN PLACE...THESE THUNDERSTORMS WILL
PRODUCE CONSIDERABLE LIGHTNING WITH ONLY SMALL AMOUNTS OF
RAINFALL.

SDZ260-262-WYZ259-297>299-120600-
/O.CON.KUNR.FW.W.0021.000000T0000Z-120712T0600Z/
NORTHERN BLACK HILLS-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-
NORTHERN CAMPBELL-LOWER ELEVATIONS OF CROOK AND WESTON COUNTIES-
WYOMING BLACK HILLS-
228 PM MDT WED JUL 11 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT
FOR DRY LIGHTNING FOR FIRE WEATHER ZONES 259...297...298...AND
299 IN NORTHEASTERN WYOMING ALONG WITH ZONES 260 AND 262 IN
WESTERN SOUTH DAKOTA...

* AFFECTED AREA...FIRE WEATHER ZONE 259 SOUTHERN CAMPBELL...FIRE 
  WEATHER ZONE 260 NORTHERN BLACK HILLS...FIRE WEATHER ZONE 262 
  SOUTHERN BLACK HILLS...FIRE WEATHER ZONE 297 NORTHERN 
  CAMPBELL...FIRE WEATHER ZONE 298 LOWER ELEVATIONS OF CROOK AND 
  WESTON COUNTIES AND FIRE WEATHER ZONE 299 WYOMING BLACK HILLS.

* WINDS...SOUTHERLY 10 TO 15 MPH WITH GUSTS UP TO 20 MPH.

* RELATIVE HUMIDITY...10 TO 15 PERCENT IN NORTHEASTERN WYOMING...
   15 TO 30 PERCENT IN THE BLACK HILLS. 

* TEMPERATURES...90S IN NORTHEASTERN WYOMING...MID 80S TO MID 
  90S IN THE BLACK HILLS. 

* LIGHTNING...SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP 
  THIS AFTERNOON INTO THIS EVENING. THESE THUNDERSTORMS WILL 
  HAVE THE POTENTIAL TO PRODUCE CONSIDERABLE LIGHTNING AND ONLY 
  SMALL AMOUNTS OF RAINFALL. 

* IMPACTS...INCREASED LIGHTNING ACTIVITY ON CRITICALLY DRY FUELS 
  MAY PRODUCE NEW FIRES STARTS WITH RAPID FIRE SPREAD. 

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.

&&

$$

572 
WWUS83 KUNR 120347
RFWUNR

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RAPID CITY SD
947 PM MDT WED JUL 11 2012

SDZ260-262-WYZ259-297>299-120500-
/O.CAN.KUNR.FW.W.0021.000000T0000Z-120712T0600Z/
NORTHERN BLACK HILLS-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-
NORTHERN CAMPBELL-LOWER ELEVATIONS OF CROOK AND WESTON COUNTIES-
WYOMING BLACK HILLS-
947 PM MDT WED JUL 11 2012

...RED FLAG WARNING IS CANCELLED FOR DRY LIGHTNING FOR FIRE
WEATHER ZONES 259...297...298...AND 299 IN NORTHEASTERN WYOMING
ALONG WITH ZONES 260 AND 262 IN WESTERN SOUTH DAKOTA...

THE NATIONAL WEATHER SERVICE IN RAPID CITY HAS CANCELLED THE RED
FLAG WARNING.

ALTHOUGH A FEW LEFTOVER THUNDERSTORMS WILL CONTINUE TONIGHT...THE
THREAT OF DRY LIGHTNING HAS DIMINISHED GREATLY.

$$

The office that day

Everything else NWS Rapid City, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 11, 4:36 PM MDT	Special Weather Statement	UNR	Campbell	54 min
Jul 11, 5:24 PM MDT	Special Weather Statement	UNR	Campbell	66 min
Jul 11, 12:18 PM MDT	Special Weather Statement	UNR	Pennington	42 min
Jul 11, 3:42 PM MDT	Special Weather Statement	UNR	Custer	48 min
Jul 11, 4:21 PM MDT	Special Weather Statement	UNR	Custer	39 min

Nearby

Red Flag Warnings in Wyoming, 2012 Red Flag Warnings in South Dakota, 2012 Every 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.