Flash Flood Warnings in New Mexico, 2009

By month

14 of 76 flash flood warnings covering New Mexico in 2009 had a flash flood report inside them; 18 of 30 flash flood reports fell inside a warning, on average 36 minutes after it went out.

New Mexico, 2009

Each office's whole area, 2009

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

• Doña Ana County11
• Eddy County10
• Otero County10
• Sierra County8
• Lea County6
• Chaves County6
• Grant County5
• Quay County5
• San Miguel County4
• Harding County4
• Roosevelt County4
• Guadalupe County3
• Cibola County3
• Union County3
• Socorro County2
• McKinley County2
• Sandoval County2
• Lincoln County2
• De Baca County2
• Catron County2
• San Juan County1
• Hidalgo County1
• Rio Arriba County1
• Santa Fe County1
• Bernalillo County1
• Curry County1
• Luna County1
• Taos County1

1. July 22, 20096flash flood warnings
2. August 25, 20096flash flood warnings
3. June 23, 20095flash flood warnings
4. July 31, 20095flash flood warnings
5. July 4, 20094flash flood warnings
6. June 28, 20093flash flood warnings
7. July 6, 20093flash flood warnings
8. September 16, 20093flash flood warnings
9. May 22, 20092flash flood warnings
10. June 20, 20092flash flood warnings
11. June 29, 20092flash flood warnings
12. June 30, 20092flash flood warnings

Alerts in force nowTornadoes on recordThe radar archive20082010

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.