The chance (%) of Tornado Warning being issued for your location in the 24 hour period beginning at 7am (CDT) or 6am (CST). [less]
[info] TORNADO
	Nil	<2
	Limited	2-10
	Elevated	11-40
	Significant	41-80
	Critical	>80

A measure of the likelihood of a significant tornado (F2 or greater) if a tornado occurs. Environmental factors including the amount of wind shear are included in this calculation. It is based on statistical correlations on tornado days since 1950. [less]
[info] EF2 TORNADO
	Nil	< -1
	Limited	-1 to 0
	Elevated	0 to 0.5
	Significant	0.5 to 1.5
	Critical	> 1.5

The chance (%) of a Severe Thunderstorm Warning being issued for your location in the 24 hour period beginning at 7am (CDT) or 6am (CST). [less]
[info] SEVERE TSTORM
	Nil	<5
	Limited	5-20
	Elevated	21-40
	Significant	41-70
	Critical	>70

The chance (%) of a Severe Thunderstorm Warning being issued for your location in the 6 hour period beginning at 7am-1pm-7pm-1am (CDT) or 6am-noon-6pm-midnight (CST). [less]
[info] SEVERE TSTORM6
	Nil	<5
	Limited	5-20
	Elevated	21-40
	Significant	41-70
	Critical	>70

If thunderstorms develop or move into the area, this is a measure of the expected maximum hail size (inches) that may fall from the strongest storms. It is a measure of the possible impact (large hail) from severe storms for the period. [less]
[info] MAX HAIL SIZE
	Nil	<.5
	Limited	0.5-1.0
	Elevated	1.0-2.0
	Significant	2.0-3.0
	Critical	>3.0

If thunderstorms develop or move into the area, this is a measure of the expected maximum thunderstorm wind gust (mph) that may occur with the strongest storms. It is a measure of the possible impact (high winds) from severe storms for the period. [less]
[info] MAX TSTORM WIND
	Nil	<40
	Limited	40-60
	Elevated	60-75
	Significant	75-90
	Critical	>90

The chance (%) that thunderstorms will develop or move into the area in the 24 hour period beginning at 7am (CDT) or 6am (CST). One impact that Thunderstorms bring is the threat of cloud to ground lightning. [less]
[info] LIGHTNING
	Nil	<15
	Limited	15-30
	Elevated	31-60
	Significant	60-90
	Critical	>90

The chance (%) that thunderstorms will develop or move into the area in the 6 hour period beginning at 7am-1pm-7pm-1am (CDT) or 6am-noon-6pm-midnight (CST). One impact that Thunderstorms bring is the threat of cloud to ground lightning. [less]
[info] LIGHTNING6
	Nil	<15
	Limited	15-30
	Elevated	31-60
	Significant	60-90
	Critical	>90

Average Storm motion (mph). [less]
[info] STORM MOTION
	Nil	<20
	Limited	20-29
	Elevated	30-39
	Significant	40-50
	Critical	>50

The average expected Rainfall (inches) for your location in the 24 hour period beginning at 7am (CDT) or 6am (CST). Rainfall amounts are highly variable, especially in thunderstorms. [less]
[info] HEAVY RAIN
	Nil	<0.5
	Limited	.5-1.5
	Elevated	1.5-2.5
	Significant	2.5-4.0
	Critical	>4.0

The chance (%) that a flash flood warning will be issued for your area in the 24 hour period beginning at 7am (CDT) or 6am (CST). It is based on forecast average rainfall amounts and current ground conditions. [less]
[info] FLASH FLOOD
	Nil	<5
	Limited	5-25
	Elevated	25-60
	Significant	60-80
	Critical	>80

The forecast threat or current impact of River Flooding (category) in your area in the 24 hour period beginning at 7am (CDT) or 6am (CST). It is based mainly on hydrologic forecasts from the River Forecast Center (ABRFC and LMRFC) and warnings issued by WFO Tulsa. [less]
[info] RIVER FLOOD
	Nil	None
	Limited	rain > 2 in
	Elevated	minor observed
	Significant	moderate or Significant RFC outlook
	Critical	major

The maximum wind gusts (mph) expected for your area in the 24 hour period beginning at 7am (CDT) or 6am (CST). This does NOT include thunderstorm winds. [less]
[info] STRONG WINDS
	Nil	<25
	Limited	25-39
	Elevated	40-58
	Significant	59-70
	Critical	>70

This is a measure of the expected fire spread conditions. If a wild fire starts due to dry ground conditions and an ignition, then this is a measure of the possible impact of that fire (spreading) due to winds, temperatures and low relative humidities. [less]
[info] FIRE DANGER
	Nil	<30
	Limited	30-43
	Elevated	44-63
	Significant	64-80
	Critical	>80

This is a measure of expected impacts from reduced visibility from fog (most likely) or smoke. [less]
[info] VISIBILITY
	Nil	None
	Limited	patchy
	Elevated	patchy dense
	Significant	areas dense
	Critical	widespread dense

The maximum HeatIndex (deg F) expected for your area in the 24 hour period beginning at 7am (CDT) or 6am (CST). HeatIndex is a measure of the affects of temperature+humidity. [less]
[info] HEAT INDEX
	Nil	<100
	Limited	100-105
	Elevated	105-110
	Significant	110-115
	Critical	>115

Decision Support Page Introduction
This is the NWS Tulsa Decision Support Page. It provides quick, easy access and highlights forecasts of hazardous weather during the next 7 days.
[more]
[less]
It is a tool for public safety decision support needed to lessen the weather's impact on lives and property. Select your county or All for Eastern Oklahoma and Northwest Arkansas Use the buttons on the left to select elements and time periods. Click on the thumbnails to swap with the main frame. Click on the main frame to open related web pages.

Graphical Hazardous Weather Outlook
This graphic is manually produced several times daily.
[more]
[less]
It depicts expected weather features and associated hazards.

Date modified: Jul 8, 2009